PAL16R8 Family 20-Pin Programmable Array Logic DISTINCTIVE C
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COM'L: -4/5/7/B/B-2/A,
PAL16R8 Family
20-Pin Programmable Array Logic
DISTINCTIVE CHARACTERISTICS
fast maximum propagation delay Popular 20-pin architectures: 16L8, 16R8, 16R6, 16R4 Programmable replacement high-speed logic Register preload testability Power-up reset initialization
Advanced Micro Devices
Extensive third-party software programmer support through FusionPLD partners 20-Pin PLCC packages save space 28-Pin PLCC-4 package provides ultra-clean high-speed signals
GENERAL DESCRIPTION
PAL16R8 Family (PAL16L8, PAL16R8, PAL16R6, PAL16R4) includes PAL16R8-5/4 Series which provides highest speed 20-pin device family, making series ideal high-performance applications. PAL16R8 Family provided with standard 20-pin PLCC pinouts 28-pin PLCC pinout. 28-pin PLCC pinout contains seven extra ground pins interleaved between outputs reduce noise increase speed. devices provide user-programmable logic replacing conventional SSI/MSI gates flip-flops reduced chip count. family allows systems engineer implement design on-chip, opening fuse links configure gates within device, according desired logic function. Complex interconnections between gates, which previously required time-consuming layout, lifted from board placed silicon, where they easily modified during prototyping production. device implements familiar Boolean logic transfer function, products. device programmable array driving fixed array. array programmed create custom product terms, while array sums selected terms outputs. addition, device provides following options: Variable input/output ratio Programmable three-state outputs Registers with feedback Product terms with connections opened assume logical HIGH state; product terms connected both true complement single input assume logical state. Registers consist D-type flip-flops that loaded LOW-to-HIGH transition clock. Unused input pins should tied GND. entire device family supported FusionPLD partners. family programmed conventional device programmers with appropriate personality socket adapter modules. Once device programmed verified, additional connection opened prevent pattern readout. This feature secures proprietary circuits.
PRODUCT SELECTOR GUIDE
Device PAL16L8 PAL16R8 PAL16R6 PAL16R4 Dedicated Inputs Outputs comb. comb. reg. reg. comb. reg. comb. Product Terms/ Output Feedback reg. reg. reg. Enable prog. prog. prog. prog.
Publication# 16492 Rev. Issue Date: February 1996
Amendment
BLOCK DIAGRAMS
PAL16L8
INPUTS
Programmable Array
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
16492D-1
PAL16R8
INPUTS
Programmable Array
16492D-2
PAL16R8 Family
BLOCK DIAGRAMS
PAL16R6
INPUTS
Programmable Array
I/O1
I/O8
16492D-3
PAL16R4
Programmable Array
I/O1
I/O2
I/O7
I/O8
16492D-4
PAL16R8 Family
CONNECTION DIAGRAMS View
(Note (Note (Note (Note (Note (Note (Note (Note (Note
16492D-5
20-Pin PLCC
(Note (Note
(Note
(Note (Note (Note (Note (Note
(Note (Note (Note
28-Pin PLCC
16492D-6
(Note (Note (Note
(Note (Note (Note
DESIGNATIONS
Note: marked orientation.
16492D-7
Clock Ground Input Input/Output Output Output Enable Supply Voltage
(Note (Note (Note (Note
Note
16L8 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7
16R8
16R6 I/O1 I/O8
16R4 I/O1 I/O2 I/O7 I/O8
PAL16R8 Family
ORDERING INFORMATION Commercial Products
programmable logic products commercial applications available with several ordering options. order number (Valid Combination) formed combination
FAMILY TYPE Programmable Array Logic NUMBER ARRAY INPUTS OUTPUT TYPE Registered Active-Low Combinatorial NUMBER OUTPUTS SPEED VERSION Blank First Revision Second Revision
OPTIONAL PROCESSING Blank Standard Processing OPERATING CONDITIONS Commercial (0°C +75°C) PACKAGE TYPE 20-Pin Plastic 020) 20-Pin Plastic Leaded Chip Carrier 020) 28-Pin Plastic Leaded Chip Carrier 028) 20-Pin Ceramic 020)
Valid Combinations PAL16L8 PAL16R8 PAL16R6 PAL16R4 PAL16L8-7 PAL16R8-7 PAL16R6-7 PAL16R4-7 PAL16L8D/2 PAL16R8D/2 PAL16R6D/2 PAL16R4D/2 -5PC, -5JC, -4JC
Valid Combinations Valid Combinations lists configurations planned supported volume this device. Consult local sales office confirm availability specific valid combinations check newly released combinations.
PAL16R8-4/5/7, (Com'l)
ORDERING INFORMATION Commercial Products (MMI Marking Only)
programmable logic products commercial applications available with several ordering options. order number (Valid Combination) formed combination
FAMILY TYPE Programmable Array Logic NUMBER ARRAY INPUTS OUTPUT TYPE Registered Active-Low Combinatorial NUMBER OUTPUTS SPEED Very High Speed ns-35 tPD) High Speed ns-35 tPD)
OPTIONAL PROCESSING Blank Standard Processing PACKAGE TYPE 20-Pin Plastic 020) 20-Pin Plastic Leaded Chip Carrier 020) 20-Pin Ceramic 020) OPERATING CONDITIONS Commercial (0°C +75°C)
POWER Blank Full Power (155 mA-180 ICC) Half Power mA-90 ICC) Quarter Power ICC)
Valid Combinations PAL16L8 PAL16R8 PAL16R6 PAL16R4 B-2, CNL,
Valid Combinations Valid Combinations lists configurations planned supported volume this device. Consult local sales office confirm availability specific valid combinations check newly released combinations.
Note: Marked with logo.
PAL16R8/B/B-2/A/B-4 (Com'l)
FUNCTIONAL DESCRIPTION Standard 20-Pin Family
standard bipolar 20-pin family devices have common electrical characteristics programming procedures. Four different devices available, including both registered combinatorial devices. parts produced with fuse link each input gate array, connections selectively removed applying appropriate voltages circuit. Utilizing easily-implemented programming algorithm, these products rapidly programmed customized pattern. Extra test words preprogrammed during manufacturing ensure extremely high field programming yields, provide extra test paths achieve excellent parametric correlation.
Registers with Feedback
Registered outputs provided data storage synchronization. Registers composed D-type flip-flops that loaded LOW-to-HIGH transition clock input.
Register Preload
register marked 16R8, 16R6, 16R4 devices preloaded from output pins facilitate functional testing complex state machine designs. This feature allows direct loading arbitrary states, making unnecessary cycle through long test vector sequences reach desired state. addition, transitions from illegal states verified loading illegal states observing proper recovery.
Pinouts
PAL16R8 Family available standard 20-pin PLCC pinouts PAL16R8-4 Series available 28-pin PLCC pinout. 28-pin PLCC pinout gives designer cleanest possible signal with only delay. PAL16R8-4 pinout been designed minimize noise that generated high-speed signals. Because inherently shorter leads, PLCC package best package high-speed designs. short leads multiple ground signals reduce effective lead inductance, minimizing ground bounce. Placing ground pins between outputs optimizes ground bounce protection, also isolates outputs from each other, eliminating cross-talk. This pinout reduce effective propagation delay much from standard pinout. Design files PAL16R8-4 Series devices written device standard 20-pin pinout most design software packages.
Power-Up Reset
flip-flops power-up logic predictable system initialization. Outputs PAL16R8 Family will HIGH active-low outputs. rise must monotonic reset delay time 1000 maximum.
Security Fuse
After programming verification, PAL16R8 Family design secured programming security fuse. Once programmed, this fuse defeats readback internal programmed pattern device programmer, securing proprietary designs from competitors. When security fuse programmed, array will read every fuse programmed.
Quality Testability
PAL16R8 Family offers very high level built-in quality. Extra programmable fuses provide means verifying performance parameters. addition, this verifies complete programmability functionality device provide highest programming yields post-programming functional yields industry.
Variable Input/Output Ratio
registered devices have eight dedicated input lines, each combinatorial output pin. PAL16L8 dedicated input lines eight combinatorial outputs pins. Buffers device inputs have complementary outputs provide user-programmable input signal polarity. Unused input pins should tied GND.
Technology
PAL16R8-5, fabricated with AMD's oxide isolated bipolar process. array connections formed with highly reliable PtSi fuses. PAL16R8B, B-2, series fabricated with AMD's advanced trench-isolated bipolar process. array connections formed with proven fuses reliable operation. These processes reduce parasitic capacitances minimum geometries provide higher performance.
Programmable Three-State Outputs
Each output three-state output buffer with threestate control. combinatorial outputs, product term controls buffer, allowing enable disable function product device inputs output feedback. combinatorial output provides bidirectional configured dedicated input output buffer always disabled. registered outputs, input controls enabling three-state outputs.
PAL16R8 Family
LOGIC DIAGRAM 20-Pin PLCC (28-Pin PLCC) Pinouts
16L8-5 16L8 (-4)(-4)
(24)
(23)
(22)
(25)
(21) I/O7
(26)
(20)
(19) I/O6 (18)
(27)
(17) I/O5 (16)
(28)
(15)
I/O4 (14)
(13)
I/O3
(12)
(11)
I/O2 (10)
16492D-8
2-10
PAL16R8 Family
LOGIC DIAGRAM 20-Pin PLCC (28-Pin PLCC) Pinouts
16R8-5 (-4) 16R8 (-4)
(24)
(23)
(25)
(22)
(21)
(26)
(20)
(19)
(27)
(18)
(17)
(28)
(16)
(15)
(14)
(13)
(12)
(11)
(10)
16492D-9
PAL16R8 Family
2-11
LOGIC DIAGRAM 20-Pin PLCC (28-Pin PLCC) Pinouts
16R6-5 (-4) 16R6 (-4)
(24)
(23)
(25)
I/O8 (22)
(21)
(26)
(20)
(19)
(27)
(18)
(17)
(28)
(16)
(15)
(14)
(13)
(12)
(11)
(10)
I/O1
16492D-10
2-12
PAL16R8 Family
LOGIC DIAGRAM 20-Pin PLCC (28-Pin PLCC) Pinouts
16R4-5 16R4 (-4)(-4)
(24)
(23)
I/O8 (22)
(25)
(21)
I/O7
(20)
(26)
(19)
(18)
(27)
(17)
(16)
(28)
(15)
(14)
(13)
(12)
(11)
I/O2 (10)
I/O1
16492D-11
PAL16R8 Family
2-13
ABSOLUTE MAXIMUM RATINGS
Ambient Temperature with Power Applied -65°C +150°C Storage Temperature -55°C +125°C Supply Voltage with Respect Ground -0.5 Input Voltage -1.2 Input Current Output Voltage -0.5 Static Discharge Voltage 2001
Stresses above those listed under Absolute Maximum Ratings cause permanent device failure. Functionality above these limits implied. Exposure Absolute Maximum Ratings extended periods affect device reliability. Programming conditions differ.
OPERATING RANGES
Commercial Devices Ambient Temperature (TA) Operating Free +75°C Supply Voltage (VCC) with Respect Ground +4.75 +5.25
Operating ranges define those limits between which functionality device guaranteed.
CHARACTERISTICS over COMMERCIAL operating ranges unless otherwise specified
Parameter Symbol IOZH IOZL Parameter Description Output HIGH Voltage Output Voltage Input HIGH Voltage Input Voltage Input Clamp Voltage Input HIGH Current Input Current Maximum Input Current Off-State Output Leakage Current HIGH Off-State Output Leakage Current Output Short-Circuit Current Supply Current Test Conditions -3.2 -1.2 -250 -100 -130 Unit
Guaranteed Input Logical HIGH Voltage Inputs (Note Guaranteed Input Logical Voltage Inputs (Note (Note (Note VOUT (Note VOUT (Note VOUT (Note Outputs Open (IOUT
Notes: These absolute values with respect device ground overshoots system and/or tester noise included. leakage worst case IOZL IOZH). more than output should tested time. Duration short-circuit should exceed second. VOUT been chosen avoid test problems caused tester ground degradation.
2-14
PAL16R8-4/5 (Com'l)
CAPACITANCE (Note
Parameter Symbol COUT Parameter Description Input Capacitance Output Capacitance CLK, I1-I8 Test Conditions VOUT 25°C Unit
Note: These parameters 100% tested, evaluated initial characterization time design modified where capacitance affected.
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges (Note
Parameter Symbol tSKEWR Clock Width Maximum Frequency (Note Parameter Description Input Feedback Combinatorial Output Setup Time from Input Feedback Clock Hold Time Clock Output Skew Between Registered Outputs (Note HIGH External Feedback Internal Feedback (fCNT) Feedback tPZX tPXZ Output Enable Output Disable Input Output Enable Using Product Term Control Input Output Disable Using Product Term Control 1/(tS tCO) 1/(tS tCF) (Note 1/(tWH tWL)
16R8, 16R6, 16R4 16L8, 16R8, 16R4
(Note Unit
(Note
fMAX
16L8, 16R6, 16R4
Notes: Switching Test Circuit test conditions. Output delay minimums tPD, tCO, tPZX, tPXZ, tEA, defined under best case conditions. Future process improvements alter these values; therefore, minimum values recommended simulation purposes only. Skew testing takes into account pattern switching direction differences between outputs. These parameters 100% tested, calculated initial characterization time design modified where frequency affected. calculated value guaranteed. found using following equation: 1/fMAX (internal feedback)
PAL16R8-4/5 (Com'l)
2-15
ABSOLUTE MAXIMUM RATINGS
Storage Temperature -65°C +150°C Ambient Temperature with Power Applied -55°C +125°C Supply Voltage with Respect Ground -0.5 Input Voltage -1.2 Input Current Output Voltage -0.5 Static Discharge Voltage 2001
Stresses above those listed under Absolute Maximum Ratings cause permanent device failure. Functionality above these limits implied. Exposure Absolute Maximum Ratings extended periods affect device reliability. Programming conditions differ.
OPERATING RANGES
Commercial Devices Ambient Temperature (TA) Operating Free +75°C Supply Voltage (VCC) with Respect Ground +4.75 +5.25
Operating ranges define those limits between which functionality device guaranteed.
CHARACTERISTICS over COMMERCIAL operating ranges unless otherwise specified
Parameter Symbol IOZH IOZL Parameter Description Output HIGH Voltage Output Voltage Input HIGH Voltage Input Voltage Input Clamp Voltage Input HIGH Current Input Current Maximum Input Current Off-State Output Leakage Current HIGH Off-State Output Leakage Current Output Short-Circuit Current Supply Current Test Conditions -3.2 -1.2 -250 -100 -130 Unit
Guaranteed Input Logical HIGH Voltage Inputs (Note Guaranteed Input Logical Voltage Inputs (Note (Note (Note VOUT (Note VOUT (Note VOUT (Note Outputs Open (IOUT
Notes: These absolute values with respect device ground overshoots system and/or tester noise included. leakage worst case IOZL IOZH). more than output should tested time. Duration short-circuit should exceed second. VOUT been chosen avoid test problems caused tester ground degradation.
2-16
PAL16R8-7 (Com'l)
CAPACITANCE (Note
Parameter Symbol COUT Parameter Description Input Capacitance Output Capacitance Test Conditions VOUT 25°C Unit
Note: These parameters 100% tested, evaluated initial characterization time design modified where capacitance affected.
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges (Note
Parameter Symbol tSKEW Maximum Frequency (Note Parameter Description Input Feedback Combinatorial Output Output Switching 16L8, 16R6, 16R4 (Note 16R8, 16R6, 16R4 1/(tS tCO) 1/(tS tCF) (Note 1/(tWH tWL) 16L8, 16R6, 16R4 Unit
Setup Time from Input Feedback Clock Hold Time Clock Output Skew Between Registered Outputs (Note Clock Width HIGH External Feedback Internal Feedback (fCNT) Feedback
fMAX
tPZX tPXZ
Output Enable Output Disable Input Output Enable Using Product Term Control Input Output Disable Using Product Term Control
Notes: Switching Test Circuit test conditions. Output delay minimums tPD, tCO, tPZX, tPXZ, tEA, defined under best case conditions. Future process improvements alter these values; therefore, minimum values recommended simulation purposes only. Skew measured with outputs switching same direction. These parameters 100% tested, calculated initial characterization time design modified where frequency affected. calculated value guaranteed. found using following equation: 1/fMAX (internal feedback)
PAL16R8-7 (Com'l)
2-17
ABSOLUTE MAXIMUM RATINGS
Storage Temperature -65°C +150°C Ambient Temperature with Power Applied -55°C +125°C Supply Voltage with Respect Ground -0.5 Input Voltage -1.5 Output Voltage -0.5 Static Discharge Voltage 2001
Stresses above those listed under Absolute Maximum Ratings cause permanent device failure. Functionality above these limits implied. Exposure Absolute Maximum Ratings extended periods affect device reliability. Programming conditions differ.
OPERATING RANGES
Commercial Devices Ambient Temperature (TA) Operating Free +75°C Supply Voltage (VCC) with Respect Ground +4.75 +5.25
Operating ranges define those limits between which functionality device guaranteed.
CHARACTERISTICS over COMMERCIAL operating ranges unless otherwise specified
Parameter Symbol IOZH IOZL Parameter Description Output HIGH Voltage Output Voltage Input HIGH Voltage Input Voltage Input Clamp Voltage Input HIGH Current Input Current Maximum Input Current Off-State Output Leakage Current HIGH Off-State Output Leakage Current Output Short-Circuit Current Supply Current Test Conditions -3.2 -1.5 -250 -100 -130 Unit
Guaranteed Input Logical HIGH Voltage Inputs (Note Guaranteed Input Logical Voltage Inputs (Note (Note (Note VOUT (Note VOUT (Note VOUT (Note Outputs Open (IOUT
Notes: These absolute values with respect device ground overshoots system and/or tester noise included. leakage worst case IOZL IOZH). more than output should tested time. Duration short-circuit should exceed second. VOUT been chosen avoid test problems caused tester ground degradation.
2-18
PAL16R8D/2 (Com'l)
CAPACITANCE (Note
Parameter Symbol COUT Parameter Description Input Capacitance Output Capacitance Test Conditions VOUT 25°C Unit
Note: These parameters 100% tested, evaluated initial characterization time design modified where capacitance affected.
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges (Note
Parameter Symbol Maximum Frequency (Note Parameter Description Input Feedback Combinatorial Output Setup Time from Input Feedback Clock Hold Time Clock Output Clock Width HIGH External Feedback Internal Feedback (fCNT) Feedback tPZX tPXZ Output Enable Output Disable Input Output Enable Using Product Term Control Input Output Disable Using Product Term Control 16L8, 16R6, 16R4 1/(tS tCO) 1/(tS tCF) (Note 1/(tWH tWL) 16R8, 16R6, 16R4 16L8, 16R6, 16R4 (Note 58.8 62.5 Unit
fMAX
Notes: Switching Test Circuit test conditions. Output delay minimums tPD, tCO, tPZX, tPXZ, tEA, defined under best case conditions. Future process improvements alter these values; therefore, minimum values recommended simulation purposes only. These parameters 100% tested, calculated initial characterization time design modified where frequency affected. calculated value guaranteed. found using following equation: 1/fMAX (internal feedback)
PAL16R8D/2 (Com'l)
2-19
ABSOLUTE MAXIMUM RATINGS
Storage Temperature -65°C +150°C Ambient Temperature with Power Applied -55°C +125°C Supply Voltage with Respect Ground -0.5 +7.0 Input Voltage -1.5 Output Voltage -0.5
Stresses above those listed under Absolute Maximum Ratings cause permanent device failure. Functionality above these limits implied. Exposure Absolute Maximum Ratings extended periods affect device reliability. Programming conditions differ.
OPERATING RANGES
Commercial Devices Ambient Temperature (TA) Operating Free +75°C Supply Voltage (VCC) with Respect Ground +4.75 +5.25
Operating ranges define those limits between which functionality device guaranteed.
CHARACTERISTICS over COMMERCIAL operating ranges unless otherwise specified
Parameter Symbol IOZH IOZL Parameter Description Output HIGH Voltage Output Voltage Input HIGH Voltage Input Voltage Input Clamp Voltage Input HIGH Current Input Current Maximum Input Current Off-State Output Leakage Current HIGH Off-State Output Leakage Current Output Short-Circuit Current Supply Current Test Conditions -3.2 -1.2 -250 -100 -130 Unit
Guaranteed Input Logical HIGH Voltage Inputs (Note Guaranteed Input Logical Voltage Inputs (Note (Note (Note VOUT (Note VOUT (Note VOUT (Note Outputs Open (IOUT
Notes: These absolute values with respect device ground overshoots system and/or tester noise included. leakage worst case IOZL IOZH). more than output should tested time. Duration short-circuit should exceed second. VOUT been chosen avoid test problems caused tester ground degradation.
2-20
PAL16R8B (Com'l)
CAPACITANCE (Note
Parameter Symbol COUT Parameter Description Input Capacitance Output Capacitance Test Conditions VOUT 25°C Unit
Note: These parameters 100% tested, evaluated initial characterization time design modified where capacitance affected.
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges (Note
Parameter Symbol fMAX tPZX tPXZ Maximum Frequency (Note Parameter Description Input Feedback Combinatorial Output Setup Time from Input Feedback Clock Hold Time Clock Output Feedback Clock Width HIGH External Feedback Feedback 1/(tS tCO) 1/(tWH tWL) 16R8, 16R6, 16R4 16R8, 16R6, 16R4 16L8, 16R6, 16R4 Unit
Output Enable Output Disable Input Output Enable Using Product Term Control Input Output Disable Using Product Term Control
Notes: Switching Test Circuit test conditions. These parameters 100% tested, evaluated initial characterization time design modified where capacitance affected.
PAL16R8B (Com'l)
2-21
ABSOLUTE MAXIMUM RATINGS
Storage Temperature -65°C +150°C Ambient Temperature with Power Applied -55°C +125°C Supply Voltage with Respect Ground -0.5 +7.0 Input Voltage -1.5 Output Voltage -0.5
Stresses above those listed under Absolute Maximum Ratings cause permanent device failure. Functionality above these limits implied. Exposure Absolute Maximum Ratings extended periods affect device reliability. Programming conditions differ.
OPERATING RANGES
Commercial Devices Ambient Temperature (TA) Operating Free +75°C Supply Voltage (VCC) with Respect Ground +4.75 +5.25
Operating ranges define those limits between which functionality device guaranteed.
CHARACTERISTICS over COMMERCIAL operating ranges unless otherwise specified
Parameter Symbol IOZH IOZL Parameter Description Output HIGH Voltage Output Voltage Input HIGH Voltage Input Voltage Input Clamp Voltage Input HIGH Current Input Current Maximum Input Current Off-State Output Leakage Current HIGH Off-State Output Leakage Current Output Short-Circuit Current Supply Current Test Conditions -3.2 -1.2 -100 -100 -130 Unit
Guaranteed Input Logical HIGH Voltage Inputs (Note Guaranteed Input Logical Voltage Inputs (Note (Note (Note VOUT (Note VOUT (Note VOUT (Note Outputs Open (IOUT
Notes: These absolute values with respect device ground overshoots system and/or tester noise included. leakage worst case IOZL IOZH). more than output should tested time. Duration short-circuit should exceed second. VOUT been chosen avoid test problems caused tester ground degradation.
2-22
PAL16R8B-2 (Com'l)
CAPACITANCE (Note
Parameter Symbol COUT Parameter Description Input Capacitance Output Capacitance Test Conditions VOUT 25°C Unit
Note: These parameters 100% tested, evaluated initial characterization time design modified where capacitance affected.
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges (Note
Parameter Symbol fMAX Maximum Frequency (Note Parameter Description Input Feedback Combinatorial Output Setup Time from Input Feedback Clock Hold Time Clock Output Clock Width HIGH External Feedback Internal Feedback (fCNT) Feedback tPZX tPXZ Output Enable Output Disable Input Output Enable Using Product Term Control Input Output Disable Using Product Term Control 16R8, 16R6, 16R4 1/(tS tCO) 1/(tS tCF) (Note 1/(tWH tWL) 16R8, 16R6, 16R4 28.5 16L8, 16R6, 16R4 Unit
Notes: Switching Test Circuit test conditions. Calculated from measured fMAX internal. These parameters 100% tested, calculated initial characterization time design modified where frequency affected. calculated value guaranteed. found using following equation: 1/fMAX (internal feedback)
PAL16R8B-2 (Com'l)
2-23
ABSOLUTE MAXIMUM RATINGS
Storage Temperature -65°C +150°C Ambient Temperature with Power Applied -55°C +125°C Supply Voltage with Respect Ground -0.5 Input Voltage -1.5 Output Voltage -0.5
Stresses above those listed under Absolute Maximum Ratings cause permanent device failure. Functionality above these limits implied. Exposure Absolute Maximum Ratings extended periods affect device reliability. Programming conditions differ.
OPERATING RANGES
Commercial Devices Ambient Temperature (TA) Operating Free +75°C Supply Voltage (VCC) with Respect Ground +4.75 +5.25
Operating ranges define those limits between which functionality device guaranteed.
CHARACTERISTICS over COMMERCIAL operating ranges unless otherwise specified
Parameter Symbol IOZH IOZL Parameter Description Output HIGH Voltage Output Voltage Input HIGH Voltage Input Voltage Input Clamp Voltage Input HIGH Current Input Current Maximum Input Current Off-State Output Leakage Current HIGH Off-State Output Leakage Current Output Short-Circuit Current Supply Current 16L8 16R8/6/4 Test Conditions -3.2 -1.2 -250 -100 -130 Unit
Guaranteed Input Logical HIGH Voltage Inputs (Note Guaranteed Input Logical Voltage Inputs (Note (Note (Note VOUT (Note VOUT (Note VOUT (Note Outputs Open (IOUT
Notes: These absolute values with respect device ground overshoots system and/or tester noise included. leakage worst case IOZL IOZH). more than output should tested time. Duration short-circuit should exceed second. been chosen avoid test problems caused tester ground degradation.
2-24
PAL16R8A (Com'l)
CAPACITANCE (Note
Parameter Symbol COUT Parameter Description Input Capacitance Output Capacitance Test Conditions VOUT 25°C Unit
Note: These parameters 100% tested, evaluated initial characterization time design modified where capacitance affected.
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges (Note
Parameter Symbol Maximum Frequency (Note Parameter Description Input Feedback Combinatorial Output Setup Time from Input Feedback Clock Hold Time Clock Output Clock Width HIGH External Feedback Internal Feedback (fCNT) Feedback tPZX tPXZ Output Enable Output Disable Input Output Enable Using Product Term Control Input Output Disable Using Product Term Control 16R8, 16R6, 16R4 1/(tS tCO) 1/(tS tCF) (Note 1/(tWH tWL) 16R8, 16R6, 16R4 28.5 16L8, 16R6, 16R4 Unit
fMAX
Notes: Switching Test Circuit test conditions. Calculated from measured fMAX internal. These parameters 100% tested, calculated initial characterization time design modified where frequency affected. calculated value guaranteed. found using following equation: 1/fMAX (internal feedback)
PAL16R8A (Com'l)
2-25
ABSOLUTE MAXIMUM RATINGS
Storage Temperature -65°C +150°C Ambient Temperature with Power Applied -55°C +125°C Supply Voltage with Respect Ground -0.5 +7.0 Input Voltage -1.5 +5.5 Output Voltage
Stresses above those listed under Absolute Maximum Ratings cause permanent device failure. Functionality above these limits implied. Exposure Absolute Maximum Ratings extended periods affect device reliability. Programming conditions differ.
OPERATING RANGES
Commercial Devices Ambient Temperature (TA) Operating Free +75°C Supply Voltage (VCC) with Respect Ground +4.75 +5.25
Operating ranges define those limits between which functionality device guaranteed.
CHARACTERISTICS over COMMERCIAL operating ranges unless otherwise specified
Parameter Symbol IOZH IOZL Parameter Description Output HIGH Voltage Output Voltage Input HIGH Voltage Input Voltage Input Clamp Voltage Input HIGH Current Input Current Maximum Input Current Off-State Output Leakage Current HIGH Off-State Output Leakage Current Output Short-Circuit Current Supply Current Test Conditions -1.5 -250 -100 -250 Unit
Guaranteed Input Logical HIGH Voltage Inputs (Note Guaranteed Input Logical Voltage Inputs (Note (Note (Note VOUT (Note VOUT (Note VOUT (Note Outputs Open (IOUT
Notes: These absolute values with respect device ground overshoots system and/or tester noise included. leakage worst case IOZL IOZH). more than output should tested time. Duration short-circuit should exceed second. VOUT been chosen avoid test problems caused tester ground degradation.
2-26
PAL16R8B-4 (Com'l)
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges (Note
Parameter Symbol fMAX tPZX tPXZ Maximum Frequency (Note Parameter Description Input Feedback Combinatorial Output Setup Time from Input Feedback Clock Hold Time Clock Output Feedback Clock Width HIGH External Feedback Feedback 1/(tS tCO) 1/(tWH tWL) 16R8, 16R6, 16R4 16L8, 16R6, 16R4 16L8, 16R6, 16R4 Unit
Output Enable Output Disable Input Output Enable Using Product Term Control Input Output Disable Using Product Term Control
Notes: Switching Test Circuit test conditions. These parameters 100% tested, calculated initial characterization time design modified where frequency affected.
PAL16R8B-4 (Com'l)
2-27
SWITCHING WAVEFORMS
Input Feedback Input Feedback Combinatorial Output
16492D-12
Clock Registered Output
16492D-13
Combinatorial Output
Registered Output
Clock
Registered Output
tSKEWR Clock
16492D-14
16492D-15
Registered Output
Registered Output Skew
Clock Width
Input Output 0.5V 0.5V
16492D-16
tPXZ Output 0.5V 0.5V tPZX
16492D-17
Input Output Disable/Enable
Output Disable/Enable
Notes: Input pulse amplitude Input rise fall times ns-3 typical.
2-28
PAL16R8 Family
SWITCHING WAVEFORMS
WAVEFORM INPUTS Must Steady Change from Change from Don't Care, Change Permitted Does Apply OUTPUTS Will Steady Will Changing from Will Changing from Changing, State Unknown Center Line HighImpedance "Off" State
KS000010-PAL
SWITCHING TEST CIRCUIT
Output Test Point
16492D-18
Commercial Specification tPD, tPZX, tPXZ, Closed Open Closed Open Closed B-4: B-4: B-4: B-4: 1.56
Measured Output Value
PAL16R8 Family
2-29
MEASURED SWITCHING CHARACTERISTICS PAL16R8-5
4.75 75°C (Note
tPD,
Number Outputs Switching
16492D-19
Number Outputs Switching
tPD,
Load Capacitance 5.25 25°C
Note:
16492D-20
These parameters 100% tested, evaluated initial characterization time design modified where affected.
2-30
PAL16R8-5
CURRENT VOLTAGE (I-V) CHARACTERISTICS PAL16R8-4/5
25°C
IOL, VOL, -0.6 -0.4 -0.2
16492D-21
Output,
IOH, VOH,
16492D-22
Output, HIGH
-100 -150 -200
16492D-23
Input
PAL16R8-5
2-31
MEASURED SWITCHING CHARACTERISTICS PAL16R8-7
4.75 75°C (Note
tPD,
16492D-24
NUMBER OUTPUTS SWITCHING
Number Outputs Switching
tPD,
16492D-25
Load Capacitance
Note: These parameters 100% tested, evaluated initial characterization time design modified where affected.
2-32
PAL16R8-7
CURRENT VOLTAGE (I-V) CHARACTERISTICS PAL16R8-7
25°C
IOL, VOL, -0.6 -0.4 -0.2
16492D-26
Output,
IOH, VOH,
16492D-27
Output, HIGH
16492D-28
Input
PAL16R8-7
2-33
INPUT/OUTPUT EQUIVALENT SCHEMATICS
Input
Program/Verify Circuitry
16492D-29
Typical Input
Output
Input, Pins
Program/Verify/ Test Circuitry Preload Circuitry
16492D-30
Typical Output
2-34
PAL16R8-5
POWER-UP RESET
power-up reset feature ensures that flip-flops will reset after device been powered output state will HIGH inverting output buffer. This feature valuable simplifying state machine initialization. timing diagram parameter table shown below. synchronous operation power-up reset wide range ways
Parameter Symbol Parameter Description Power-Up Reset Time Input Feedback Setup Time Clock Width
rise steady state, conditions required ensure valid power-up reset. These conditions are:
rise must monotonic. Following reset, clock input must driven
from HIGH until applicable input feedback setup times met.
1000 Unit
Switching Characteristics
Power
Registered Active-Low Output
Clock
16492D-31
Power-Up Reset Waveform
PAL16R8 Family
2-35
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