PI74FCT16952T/162952/162H952T PI74FCT16952T 16-BIT REGISTERED TRANSCEI
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1OEBA 2OEBA
PI74FCT16952T/162952/162H952T PI74FCT16952T 16-BIT REGISTERED TRANSCEIVERS
PI74FCT162952T PI74FCT162H952T
16-Bit Registered Transceivers
Common Features: PI74FCT16952T, PI74FCT162952T, PI74FCT2H952T high-speed, power devices with high current drive ±10% Hysteresis inputs Packages available: 56-pin wide plastic TSSOP 56-pin wide plastic SSOP PI74FCT16952T Features: High output drive: Power disable outputs permit live insertion Typical VOLP (Output Ground Bounce) 1.0V 25°C PI74FCT162952T Features: Balanced output drivers: Reduced system switching noise Typical VOLP (Output Ground Bounce) 0.6V 25°C PI74FCT162H952T Features: Hold retains last active state during 3-state Eliminates need external pull-up resistors
Product Features:
Product Description:
Pericom Semiconductors PI74FCT series logic circuits produced Companys advanced micron CMOS technology, achieving industry leading speed grades. PI74FCT16952T, PI74FCT162952T, PI74FCT162H952T 16-bit registered transceivers organized with sets eight D-type latches with separate input output controls each set. data flow from example, A-to-B Enable (xCEAB) input must order enter data from xAx. data present port will clocked register when xCLKAB toggles from LOW-to-HIGH. xOEAB control performs output enable function port. Control data from similar, uses xCEBA, xCLKBA, xOEBA inputs. connecting control pins independent transceivers together, full 16-bit operation achieved. output buffers designed with Power-Off disable allowing live insertion boards when used backplane drivers. PI74FCT16952T output buffers designed with PowerOff disable function allowing live insertion boards when used backplane drivers. PI74FCT162952T balanced output drivers. designed with current limiting resistors outputs control output edge rate resulting lower ground bounce undershoot. This eliminates need external terminating resistors most interface applications. PI74FCT162H952T Hold which retains inputs last state whenever input goes high-impedance preventing floating inputs eliminating need pull-up/down resistors.
1CEBA
2CEBA
1CLKBA 1OEAB 1CEAB
2CLKBA 2OEAB 2CEAB
1CLKAB
2CLKAB
OTHER CHANNELS
OTHER CHANNELS
PS2042A 03/11/96
PI74FCT16952T/162952/162H952T 16-BIT REGISTERED TRANSCEIVERS
Product Configuration
1OEAB 1CLKAB 1CEAB
Product Description
1OEBA 1CLKBA 1CEBA
Name xOEAB xOEBA xCEAB xCEBA xCLKAB xCLKBA
56-PIN
Description A-to-B Output Enable Input (Active LOW) B-to-A Output Enable Input (Active LOW) A-to-B Clock Enable Input (Active LOW) B-to-A Clock Enable Input (Active LOW) A-to-B Clock Input B-to-A clock Input A-to-B Data Inputs B-to-A 3-State Outputs B-to-A Data Inputs B-to-A 3-State Outputs Ground Power Note: PI74FCT162H952T, these pins have Hold. other pins standard, outputs, I/Os.
Truth Table(1,2)
Inputs Outputs
xCEAB
xCLKAB
xOEAB
B(3) B(3) High
2CEAB 2CLKAB
2OEAB
2CEBA 2CLKBA
2OEBA
High Voltage Level Voltage Level Dont Care Irrelevant LOW-to-HIGH Transition High Impedance A-to-B data flow shown, B-to-A flow control same, except using xCEBA, xCLKBA, xOEBA. Level before indicated steady-state input conditions were established.
PS2042A 03/11/96
PI74FCT16952T/162952/162H952T 16-BIT REGISTERED TRANSCEIVERS
Maximum Ratings
(Above which useful life impaired. user guidelines, tested.) Storage Temperature 55°C +125°C Ambient Temperature with Power Applied 40°C +85°C Supply Voltage Ground Potential (Inputs Only) 0.5V +7.0V Supply Voltage Ground Potential (Outputs Only) 0.5V +7.0V Input Voltage 0.5V +7.0V Output Current Power Dissipation 1.0W Note: Stresses greater than those listed under 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.
Electrical Characteristics (Over Operating Range, 40°C +85°C, 5.0V 10%)
Parameters Description IBHH IBHL IOZH(5) IOZL(5) Input HIGH Voltage Input Voltage Input HIGH Current Input HIGH Current Input HIGH Current Input HIGH Current Input Current Input Current Input Current Input Current Hold Sustain Current High-Impedance Output Current (3-STATE OUTPUTS) Clamp Diode Voltage Short Circuit Current Output Drive Current Input Hysteresis Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic Level Standard Input, Max. Standard I/O, Max. Hold Input(4), Max. Hold I/O(4), Max. Standard Input, Min. Standard I/O, Min. Hold Input(4), Min. Hold I/O(4), Min. Hold Input(4), Min. Max. Max. Min., Max.(3), VOUT Max.(3), VOUT 2.5V Min. 2.0V 0.8V VOUT 2.7V VOUT 0.5V Typ(2) Max. ±100 ±100 ±100 ±100 Units
Notes: Max. Min. conditions, appropriate value specified under Electrical Characteristics applicable device type. Typical values 5.0V, +25°C ambient maximum loading. more than output should shorted time. Duration test should exceed second. Pins with Hold identified description. This specification does apply bi-directional functionalities with Hold.
PS2042A 03/11/96
PI74FCT16952T/162952/162H952T 16-BIT REGISTERED TRANSCEIVERS
PI74FCT16952T Output Drive Characteristics (Over Operating Range)
Parameters Description IOFF Output HIGH Voltage Output Voltage Power Down Disable Test Conditions(1) Min., Min., VOUT 4.5V 15.0 32.0 Min. Typ(2) Max. Units 0.55 ±100
PI74FCT162952T/162H952T Output Drive Characteristics (Over Operating Range)
Parameters Description IODL IODH Output HIGH Voltage Output Voltage Output Current Output HIGH Current Test Conditions(1) Min., 24.0 Min., VIL, VOUT 1.5V(3) VIL, VOUT 1.5V(3) Min. Typ(2) Max. 0.55 Units
Capacitance 25°C, MHz)
Parameters(4) COUT Description Input Capacitance Output Capacitance Test Conditions VOUT Max. Units
Notes: Max. Min. conditions, appropriate value specified under Electrical Characteristics applicable device type. Typical values 5.0V, +25°C ambient maximum loading. more than output should shorted time. Duration test should exceed second. This parameter determined device characterization production tested.
PS2042A 03/11/96
PI74FCT16952T/162952/162H952T 16-BIT REGISTERED TRANSCEIVERS
Power Supply Characteristics
Parameters Description ICCD Quiescent Power Supply Current Supply Current Input HIGH Supply Current Input MHz(4) Max. Max. Max., Outputs Open xOEAB xOEBA Input Toggling Duty Cycle Max., Outputs Open (XCLKAB) Duty Cycle xOEAB xCEAB xOEAB Toggling Max., Outputs Open (XCLKAB) Duty Cycle xOEAB xCEAB xOEAB Bits Toggling Duty Cycle Test Conditions(1) 3.4V(3) Min. Typ(2) Max. Units
Total Power Supply Current(6)
1.7(5)
3.4V
3.2(5)
6.5(5)
20.5(5)
Notes: Max. Min. conditions, appropriate value specified under Electrical Characteristics applicable device. 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 (fCP/2 fINI) Quiescent Current 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) Input Frequency Number Inputs currents milliamps frequencies megahertz.
PS2042A 03/11/96
PI74FCT16952T/162952/162H952T 16-BIT REGISTERED TRANSCEIVERS
PI74FCT16952T Switching Characteristics over Operating Range
16952AT Com. 16952BT Com. 16952CT Com. 16952DT Com. 16952ET Com. Unit
Parameters Description tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay
XCLKAB, XCLKBA XBX,
Conditions
10.0 10.5 10.0
TSK(O)
Output Enable Time XAX, Output Disable Time(3) XOEBA, XOEAB XAX, Setup Time HIGH XAX, XCLKAB, XCLKBA Hold Time HIGH XAX, XCLKAB, XCLKBA Setup Time HIGH XCEAB, xCEBA xCLKAB, xCLKBA Hold Time HIGH XCEAB, xCEBA xCLKAB, xCLKBA Pulse Width HIGH(3) LOW, xCLKAB xCLKBA OUTPUT SKEW
XOEBA, XOEAB
PI74FCT162952T Switching Characteristics over Operating Range
16952AT Com. 16952BT Com. 16952CT Com. 16952DT Com. 16952ET Com. Unit
Parameters Description tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay
XCLKAB, XCLKBA XBX,
Conditions
10.0 10.5 10.0
TSK(O)
Output Enable Time XAX, Output Disable Time(3) XOEBA, XOEAB XAX, Setup Time HIGH XAX, XCLKAB, XCLKBA Hold Time HIGH XAX, XCLKAB, XCLKBA Setup Time HIGH XCEAB, xCEBA xCLKAB, xCLKBA Hold Time HIGH XCEAB, xCEBA xCLKAB, xCLKBA Pulse Width HIGH(3) LOW, xCLKAB xCLKBA OUTPUT SKEW
XOEBA, XOEAB
Notes: test circuit wave forms. Minimum limits guaranteed tested Propagation Delays. This parameter guaranteed production tested. Skew between outputs, same package, switching same direction. This parameter guaranteed design.
PS2042A 03/11/96
PI74FCT16952T/162952/162H952T 16-BIT REGISTERED TRANSCEIVERS
PI74FCT162H952T Switching Characteristics over Operating Range
16952AT Com. 16952BT Com. 16952CT Com. 16952DT Com. 16952ET Com. Unit
Parameters Description tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay
XCLKAB, XCLKBA XBX,
Conditions(1)
10.0 10.5 10.0
TSK(O)
Output Enable Time XAX, Output Disable Time(3) XOEBA, XOEAB XAX, Setup Time HIGH XAX, XCLKAB, XCLKBA Hold Time HIGH XAX, XCLKAB, XCLKBA Setup Time HIGH XCEAB, xCEBA xCLKAB, xCLKBA Hold Time HIGH XCEAB, xCEBA xCLKAB, xCLKBA Pulse Width HIGH(3) LOW, xCLKAB xCLKBA OUTPUT SKEW
XOEBA, XOEAB
Notes: test circuit wave forms. Minimum limits guaranteed tested Propagation Delays. This parameter guaranteed production tested. Skew between outputs, same package, switching same direction. This parameter guaranteed design.
Pericom Semiconductor Corporation 2380 Bering Drive Jose, 95131 1-800-435-2336 (408) 435-1100 http://www.pericom.com
PS2042A 03/11/96
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