PI74FCT373T
PI74FCT573T
OCTAL TRANSPARENT LATCHES
4
PS2015B 10/06/04
Power Supply Characteristics
Parameters Description Test Conditions
(1)
Min. Typ
(2)
Max. Units
ICC Quiescent Power VCC = Max. VIN = GND or VCC 0.1 500 µA
Supply Current
∆ICC Supply Current per VCC = Max., VIN = 3.4V
(3)
0.5 2.0 mA
Input @ TTL HIGH
ICCD Supply Current per VCC = Max., VIN = VCC 0.15 0.25 mA/
Input per MHz
(4)
Outputs Open VIN = GND MHz
OE = GND
LE = VCC
One Bit Toggling
50% Duty Cycle
IC Total Power Supply VCC = Max., VIN = VCC 1.5 3.0
(5)
mA
Current
(6)
Outputs Open VIN = GND
fI = 10 MHZ
50% Duty Cycle
OE = GND VIN = 3.4V 1.8 4.5
(5)
LE = VCC VIN = GND
One Bit Toggling
VCC = Max., VIN = VCC 3.0 6.0
(5)
Outputs Open VIN = GND
fI = 2.5 MHZ
50% Duty Cycle
OE = GND VIN = 3.4V 5.0 14.0
(5)
LE = VCC VIN = GND
Eight Bits Toggling
Notes:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 5.0V, +25°C ambient.
3. Per TTL driven input (V
IN = 3.4V); all other inputs at Vcc or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.
6. I
C =IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ∆ICC DHNT + ICCD (fCP/2 + fINi)
I
CC = Quiescent Current
∆I
CC = Power Supply Current for a TTL High Input (VIN = 3.4V)
D
H = Duty Cycle for TTL Inputs High
N
T = Number of TTL Inputs at DH
ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
f
CP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
f
I = Input Frequency
N
I = Number of Inputs at fI
All currents are in milliamps and all frequencies are in megahertz.
