Datasheet

CY74FCT16823T
CY74FCT162823T
4
Power Supply Characteristics
Parameter Description Test Conditions
[10]
Min. Typ.
[5]
Max. Unit
I
CC
Quiescent Power Supply
Current
V
CC
=Max. V
IN
<0.2V
V
IN
>V
CC
−0.2V
— 5 500 µA
∆I
CC
Quiescent Power Supply
Current (TTL inputs HIGH)
V
CC
=Max. V
IN
=3.4V
[11]
— 0.5 1.5 mA
I
CCD
Dynamic Power Supply
Current
[12]
V
CC
=Max.,
One Input Toggling,
50% Duty Cycle,
Outputs Open,
OE=CLKEN=GND
V
IN
=V
CC
or
V
IN
=GND
— 75 120 µA/
MHz
I
C
Total Power Supply Current
[13]
V
CC
=Max.,
f
0
=10 MHz,
50% Duty Cycle,
Outputs Open,
One Bit Toggling,
OE=CLKEN=GND
at f
1
=5 MHz
V
IN
=V
CC
or
V
IN
=GND
— 0.8 1.7 mA
V
IN
=3.4V or
V
IN
=GND
— 1.3 3.2
V
CC
=Max.,
at f
1
=2.5 MHz,
50% Duty Cycle,
Outputs Open,
Eighteen Bits Toggling,
OE=CLKEN=GND
f
0
=10 MHz
V
IN
=V
CC
or
V
IN
=GND
— 4.2 7.1
[14]
V
IN
=3.4V or
V
IN
=GND
— 9.2 22.1
[14]
Notes:
10. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
11. Per TTL driven input (V
IN
=3.4V); all other inputs at V
CC
or GND.
12. This parameter is not directly testable, but is derived for use in Total Power Supply calculations.
13. I
C
=I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
=I
CC
+∆I
CC
D
H
N
T
+I
CCD
(f
0
/2 + f
1
N
1
)
I
CC
= Quiescent Current with CMOS input levels
∆I
CC
= Power Supply Current for a TTL HIGH input (V
IN
=3.4V)
D
H
= Duty Cycle for TTL inputs HIGH
N
T
= Number of TTL inputs at D
H
I
CCD
= Dynamic Current caused by an input transition pair (HLH or LHL)
f
0
= Clock frequency for registered devices, otherwise zero
f
1
= Input signal frequency
N
1
= Number of inputs changing at f
1
All currents are in milliamps and all frequencies are in megahertz.
14. Values for these conditions are examples of the I
CC
formula. These limits are specified but not tested.