IDT54/74FCT16244T/AT/CT/ET IDT54/74FCT162244T/AT/CT/ET IDT54/74FCT1662
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FAST CMOS 16-BIT BUFFER/LINE DRIVER
IDT54/74FCT16244T/AT/CT/ET IDT54/74FCT162244T/AT/CT/ET IDT54/74FCT166244T/AT/CT IDT54/74FCT162H244T/AT/CT/ET
Common features: MICRON CMOS Technology High-speed, low-power CMOS replacement functions Typical tSK(o) (Output Skew) 250ps input output leakage (max.) 2000V MIL-STD-883, Method 3015; 200V using machine model 200pF, Packages include pitch SSOP, 19.6 pitch TSSOP, 15.7 pitch TVSOP pitch Cerpack Extended commercial range -40°C +85°C Features FCT16244T/AT/CT/ET: High drive outputs (-32mA IOH, 64mA IOL) Power disable outputs permit "live insertion" Typical VOLP (Output Ground Bounce) 1.0V 25°C Features FCT162244T/AT/CT/ET: Balanced Output Drivers: ±24mA (commercial), ±16mA (military) Reduced system switching noise Typical VOLP (Output Ground Bounce) 0.6V 5V,TA 25°C Features FCT166244T/AT/CT: Light Drive Balanced Output: ±8mA (commercial), ±6mA (military) Minimal system switching noise Typical VOLP (Output Ground Bounce) 0.25V 5V,TA 25°C Features FCT162H244T/AT/CT/ET: Bus-Hold retains last active state during 3-state Eliminates need external pull resistors
DESCRIPTION:
16-Bit Buffer/Line Driver interface signal buffering applications requiring high speed power dissipation. These devices have flow through organization, shrink packaging simplify board layout. inputs designed with hysteresis improved noise margin. three-state controls allow independent 4-bit, 8-bit combined 16-bit operation. These parts plug replacements 54/74ABT16244 where higher speed, lower noise lower power dissipation levels desired. FCT16244T/AT/CT/ET ideally suited driving high capacitance loads (>200pF) impedance backplanes. These "high drive" buffers designed with power disable capability allow "live insertion" boards when used backplane interface. FCT162244T/AT/CT/ET have balanced output current levels current limiting resistors. These offer ground bounce, minimal undershoot, controlled output fall times, reducing need external series terminating resistors while still providing very high speed operation loads less than 200pF. FCT166244T/AT/CT suited very noise, point-to-point driving where there single receiver, very light lumped load (<100pF). buffers designed limit output current levels which will avoid noise ringing signal lines without using external series terminating resistors. FCT162H244T/AT/CT/ET have "Bus-Hold" which retains input's last state whenever input goes high impedance. This prevents "floating" inputs eliminates need pull-up/down resistors.
FUNCTIONAL BLOCK DIAGRAM
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2544
2544
MILITARY COMMERCIAL TEMPERATURE RANGES
©1996
OCTOBER 1996
DSC-2544/9
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY COMMERCIAL TEMPERATURE RANGES
CONFIGURATIONS
SO48-1 SO48-2 SO48-3
E48-1
2544
2544
SSOP/ TSSOP/TVSOP VIEW
CERPACK VIEW
DESCRIPTION
Names Description 3-State Output Enable Inputs (Active LOW) Data Inputs(1) 3-State Outputs
2544 NOTE: FCT16xH these pins have "Bus-hold". other pins standard inputs, outputs I/Os.
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY COMMERCIAL TEMPERATURE RANGES
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Description Max. VTERM(2) Terminal Voltage with Respect -0.5 +7.0 Terminal Voltage with Respect VTERM -0.5 +0.5 TSTG Storage Temperature +150 Output Current +120 Unit
FUNCTION TABLE(1)
Inputs
NOTE: HIGH Voltage Level Don't Care Voltage Level High Impedance
Outputs
2544
2544 NOTES: Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS cause permanent damage device. This stress rating only functional operation device these other conditions above those indicated operational sections this specification implied. Exposure absolute maximum rating conditions extended periods affect reliability. device terminals except FCT162XXXT FCT166XXXT output terminals. Output terminals FCT162XXXT FCT166XXXT.
CAPACITANCE +25°C, 1.0MHz)
Symbol Parameter(1) Input Capacitance COUT Output Capacitance Conditions VOUT Typ. Max. Unit
NOTE: This parameter measured characterization tested.
2544
ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (STANDARD PARTS)
Following Conditions Apply Unless Otherwise Specified: Commercial: -40°C +85°C, 5.0V 10%; Military: -55°C +125°C, 5.0V
Symbol Parameter Input HIGH Level Input Level Input HIGH Current (Input pins)(5) Input HIGH Current (I/O pins)(5) Input Current (Input pins)(5) Max. Min., -18mA Max.,
Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic Level Max. 2.7V 0.5V
Min.
Typ.(2)
-0.7 -140
Max.
Unit
-1.2 -225
Input Current (I/O pins)(5) High Impedance Output Current (3-State Output pins) Clamp Diode Voltage Short Circuit Current Input Hysteresis Quiescent Power Supply Current
Max.,
NOTES: conditions shown Max. Min., appropriate value specified under Electrical Characteristics applicable device type. Typical values 5.0V, +25°C ambient. more than output should tested time. Duration test should exceed second. Duration condition exceed second. test limit this parameter -55°C.
2544
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY COMMERCIAL TEMPERATURE RANGES
ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (BUS-HOLD)
Following Conditions Apply Unless Otherwise Specified: Commercial: -40°C +85°C, 5.0V 10%; Military: -55°C +125°C, 5.0V
Symbol Parameter Input HIGH Level Input Level Input HIGH Current(4) Input Current(4) Hold Standard Input(5) Standard I/O(5) Bus-hold Input Bus-hold Standard Input(5) Standard I/O(5) Bus-hold Input Bus-hold Bus-hold Input Min. 2.0V 0.8V Max. Min., -18mA Max.,
Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic Level Max.
Min.
Typ.(2)
-0.7 -140
Max.
Unit
±100 ±100 ±100 ±100
-1.2 -225
Sustain Current(4) High Impedance Output Current (3-State Output pins) (5,6) Clamp Diode Voltage Short Circuit Current Input Hysteresis Quiescent Power Supply Current
2.7V 0.5V
Max.,
NOTES: conditions shown Max. Min., appropriate value specified under Electrical Characteristics applicable device type. Typical values 5.0V, +25°C ambient. more than output should tested time. Duration test should exceed second. Pins with Bus-hold identified description. test limit this parameter -55°C. Does include Bus-hold pins.
2544
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY COMMERCIAL TEMPERATURE RANGES
OUTPUT DRIVE CHARACTERISTICS FCT16244T
Symbol Parameter Output Drive Current Output HIGH Voltage Test Conditions(1) Max., 2.5V(3) Min. -3mA -12mA MIL. -15mA COM'L. -24mA MIL. -32mA COM'L.(4) 48mA MIL. 64mA COM'L. 4.5V Min. Typ.(2)
Max. -180 0.55
Unit
2544
Output Voltage Input/Output Power Leakage(5)
Min.
OUTPUT DRIVE CHARACTERISTICS FCT162244T
Symbol Parameter Output Current Output HIGH Current Output HIGH Voltage Output Voltage Test Conditions(1) VIL, VOUT 1.5V VIL, VOUT 1.5V(3) Min. Min. -16mA MIL. -24mA COM'L. 16mA MIL. 24mA COM'L. Min. Typ.(2) -115 Max. -200 0.55 Unit
2544
OUPUT DRIVE CHARACTERISTICS FCT166244T
Symbol Parameter Output Current Output HIGH Current Output HIGH Voltage Output Voltage Test Conditions(1) VIL, VOUT 1.5V VOUT 1.5V Min. Min. -6mA MIL. -8mA COM'L. MIL. COM'L. Min. Typ.(2) Max. 0.55 Unit
2544
NOTES: conditions shown Max. Min., appropriate value specified under Electrical Characteristics applicable device type. Typical values 5.0V, +25°C ambient. more than output should tested time. Duration test should exceed second. Duration condition exceed second. test limit this parameter -55°C.
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol ICCD Parameter Quiescent Power Supply Current Inputs HIGH Dynamic Power Supply Current(4) Max. 3.4V(3) Max. Outputs Open Input Toggling Duty Cycle Max. Outputs Open 10MHz Duty Cycle Toggling Max. Outputs Open 2.5MHz Duty Cycle Sixteen Bits Toggling Test Conditions(1) Min. Typ.(2) Max. Unit
Total Power Supply Current
3.4V 3.4V
16.5
NOTES: conditions shown Max. Min., appropriate value specified under Electrical Characteristics applicable device type. Typical values 5.0V, +25°C ambient. driven input (VIN 3.4V). other inputs GND. This parameter directly testable, derived Total Power Supply Calculations. Values these conditions examples formula. These limits guaranteed tested. IQUIESCENT IINPUTS IDYNAMIC DHNT ICCD (fCPNCP/2 fiNi) Quiescent Current (ICCL, ICCH ICCZ) Power Supply Current High Input (VIN 3.4V) Duty Cycle Inputs High Number Inputs ICCD Dynamic Current Caused Input Transition Pair (HLH LHL) Clock Frequency Register Devices (Zero Non-Register Devices) Number Clock Inputs Input Frequency Number Inputs
2544
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FCT16244T/FCT162244T
FCT16244T/162244T/166244T Com'l. Symbol Parameter Condition(1) Min.(2) Max. Mil. Min.(2) Max. FCT16244AT/162244AT/166244AT Com'l. Min.(2) Max. Mil. Min.(2) Max. Unit
tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(o)
Propagation Delay Output Enable Time Output Disable Time Output Skew
50pF
2544
FCT16244CT/162244CT/166244CT Com'l. Symbol Parameter Condition(1) Min.(2) Max. Mil. Min.(2) Max.
FCT16244ET/162244ET Com'l. Min.(2) Max. Mil. Min.(2) Max. Unit
tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(o)
Propagation Delay Output Enable Time Output Disable Time Output Skew
50pF
2544
NOTES: test circuit waveforms. Minimum limits guaranteed tested Propagation Delays. Skew between outputs same package switching same direction. This parameter guaranteed design.
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS WAVEFORMS TEST CIRCUITS OUTPUTS
Pulse Generator D.U.T. 50pF
2544
SWITCH POSITION
7.0V
Test Open Drain Disable Enable Other Tests
Switch
Closed
Open
2544 DEFINITIONS: Load capacitance: includes probe capacitance. Termination resistance: should equal ZOUT Pulse Generator.
SET-UP, HOLD RELEASE TIMES
DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC. 1.5V 1.5V 1.5V 1.5V
2544
PULSE WIDTH
LOW-HIGH-LOW PULSE HIGH-LOW-HIGH PULSE
1.5V
tREM
1.5V
2544
PROPAGATION DELAY
ENABLE DISABLE TIMES
ENABLE DISABLE 1.5V 3.5V 0.3V tPHZ 0.3V 1.5V
SAME PHASE INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL tPHL
1.5V 1.5V 1.5V
2544
CONTROL INPUT tPZL OUTPUT NORMALLY OUTPUT NORMALLY HIGH SWITCH CLOSED tPZH SWITCH OPEN 3.5V 1.5V tPLZ
2544 NOTES: Diagram shown input Control Enable-LOW input Control Disable-HIGH Pulse Generator Pulses: Rate 1.0MHz; 2.5ns; 2.5ns
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
Temp. Range Drive XXXX Hold Device Type Package Process Blank 244T 244AT 244CT 244ET Blank Commercial MIL-STD-883, Class Shrink Small Outline Package (SO48-1) Thin Shrink Small Outline Package (SO48-2) Thin Very Small Outline Package (SO48-3) CERPACK (E48-1) Non-Inverting 16-Bit Buffer/Line Driver
Standard Bus-hold 16-Bit High Drive 16-Bit Balanced Drive 16-Bit Light Drive -55°C +125°C -40°C +85°C
2544
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