CY74FCT163H374
CY74FCT163LD374
CY74FCT163LDH374
4
Capacitance[6](TA = +25°C , f = 1.0 MHz)
Parameter Description Test Condi ti ons Typ.[5] Max. Unit
CIN Input Capacitance VIN = 0V 4.5 6.0 pF
COUT Output Capacitance VOUT = 0V 5.5 8.0 pF
Power Suppl y Characteri stic s
Parameter Description Test Condi ti ons Typ.[5] Max. Unit
ICCD Dyna mic Power Supply
Current[11] VCC=Max., One Input Toggling,
50% Duty Cycle,
Outputs Open, OE=GND
VIN=VCC or
VIN=GND 50 75 µA/MHz
ICTota l Power Supply
Current[12] VCC=Max., f1=10 MHz, 50%
Duty Cycle, Out puts Ope n, One
Bit Toggling, OE=GND
VIN=VCC or
VIN=GND 0.5 0.8 mA
VIN=VCC–0.6V o r
VIN=GND 0.5 0.8 mA
VCC=Max., f1=2.5 MHz, 50%
Duty Cycle, Outputs Open, Six-
teen Bits Toggling, OE=GND
VIN=VCC or
VIN=GND 2.0 3.0[13] mA
VIN=VCC–0.6V o r
VIN=GND 2.0 3.3[13] mA
Swi tch i ng C h aracteri sti cs Ove r the Operating Range VCC=3.0V to 3.6V[14,15]
Parameter Description
CY74FCT163374A
CY74FCT163H374A CY74FCT163374C
CY74FCT163H374C
Min. Max. Min. Max. Unit Fig. No.[16]
tPLH
tPHL Propagation Delay Clock to
Output 1.5 6.5 1.5 5.2 ns 1, 3
tPZH
tPZL Output Enable Time 1.5 6.5 1.5 5.5 ns 1, 7, 8
tPHZ
tPLZ Out p ut Di sable T i m e 1.5 5.5 1.5 5.0 ns 1, 7, 8
tSU Input Setup time 2.0 2.0 ns 1, 4
tH Input Hold time 1.5 -1.5 -ns 1. 4
tSK(O) Output Skew[17] 0.5 0.5 ns —
Notes:
11. This parameter is not directly testable, but is derived f or use in Total Power Supply calculations.
12. IC=I
QUIESCENT + IINPUTS + IDYNAMIC
IC=I
CC+∆ICCDHNT+ICCD(f0/2 + f1N1)
ICC = Quiescent Current with CMOS input levels
∆ICC = Power Supply Current for a TTL HIGH input (VIN=3.4V)
DH= Duty Cycle for TTL inputs HIGH
NT= Number of TTL inputs at DH
ICCD = Dynamic Current caused by an input transition pair (HLH or LHL)
f0= Clock frequency f o r registered devices, otherwise zero
f1= Input signal frequency
N1= Number of inputs changing at f1
All currents are in milliamps and all frequencies are in megahertz.
13. Values for these conditions are examples of the ICC formula. These limits are guaranteed but not tested.
14. Minimum limits are guaranteed but not tested on Propagation Delays.
15. For VCC =2.7, propagation delay, output enable and output disable times should be degraded by 20%.
16. See “Parameter Measurement Information” in the General Information section.
17. Skew between any tw o outputs of the same package switching in the same direction. This parameter is guaranteed by design.