74FCT534 Datasheet, PDF (4/8 Pages) National Semiconductor (TI) – Octal D Flip-Flop with TRI-STATE Outputs

DC Characteristics for ’FCT Family Devices (Continued)
Typical values are at V_CC e 5 0V 25 C ambient and maximum loading For test conditions shown as Max use the value
specified for the appropriate device type Com V_CC e 5 0V g5% T_A e 0 C to a70 C V_HC e V_CC b 0 2V
Symbol
Parameter
74FCT
Min Typ Max
Units
Conditions
I_CC
DI_CC
I_CCD
Maximum Quiescent
Supply Current
Quiescent Supply Current
TTL Inputs HIGH
Dynamic Power
Supply Current (Note 4)
10
05
0 15
40 0
20
0 25
mA
mA
mA MHz
V_CC e Max
V_IN ^t V_HC V_IN ^s 0 2V
f_I e 0
V_CC e Max
V_IN e 3 4V (Note 3)
V_CC e Max
Outputs Open
OE e GND
One Input Toggling
50% Duty Cycle
V_IN ^t V_HC
V_IN ^s 0 2V
I_C
Total Power Supply
Current (Note 6)
15 40
V_CC e Max
Outputs Open
f_CP e 10 MHz
OE e GND
18 60
f_I e 5 MHz
One Bit Toggling
50% Duty Cycle
mA
(Note 5)
30 78
V_CC e Max
Outputs Open
OE e GND
5 0 16 8
f_CP e 10 MHz
f_I e 2 5 MHz
Eight Bits Toggling
50% Duty Cycle
V_IN ^t V_HC
V_IN ^s 0 2V
V_IN e 3 4V
V_IN e GND
V_IN ^t V_HC
V_IN ^s 0 2V
V_IN e 3 4V
V_IN e GND
V_H
Input Hysteresis
on Clock Only
200
mV
Note 1 Maximum test duration not to exceed one second not more than one output shorted at one time
Note 2 This parameter guaranteed but not tested
Note 3 Per TTL driven input (V_IN e 3 4V) all other inputs at V_CC or GND
Note 4 This parameter is not directly testable but is derived for use in Total Power Supply calculations
Note 5 Values for these conditions are examples of the I_CC formula These limits are guaranteed but not tested
Note 6 I_C e I_QUIESCENT a I_INPUTS a I_DYNAMIC
I_C e I_CC a DI_CC D_HN_T a I_CCD (f_CP 2 a f_I N_I)
I_CC e Quiescent Current
DI_CC e Power Supply Current for a TTL High Input (V_IN e 3 4V)
D_H e Duty Cycle for TTL inputs High
N_T e Number of Inputs at D_H
I_CCD e Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
f_CP e Clock Frequency for Register Devices (Zero for Non-Register Devices)
f_I e Input Frequency
N_I e Numbers of Inputs at f_I
All currents are in milliamps and all frequencies are in megahertz
4