
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
4
IDT54/74FCT162244T/AT/CT/ET
FAST CMOS 16-BIT BUFFER/LINE DRIVER
Symbol
I
CC
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamc Power Supply
Current
(4)
V
CC
= Max.
V
IN
= 3.4V
(3)
V
CC
= Max.
Outputs Open
x
OE
= GND
One Input Toggling
50% Duty Cycle
V
CC
= Max.
Outputs Open
fi = 10MHz
50% Duty Cycle
x
OE
= GND
One Bit Toggling
V
CC
= Max.
Outputs Open
fi = 2.5MHz
50% Duty Cycle
x
OE
= GND
Sixteen Bits Toggling
—
0.5
1.5
mA
I
CCD
V
IN
= V
CC
V
IN
= GND
—
60
100
μA/
MHz
I
C
Total Power Supply Current
(6)
V
IN
= V
CC
V
IN
= GND
—
0.6
1.5
mA
V
IN
= 3.4V
V
IN
= GND
—
0.9
2.3
V
IN
= V
CC
V
IN
= GND
—
2.4
4.5
(5)
V
IN
= 3.4V
V
IN
= GND
—
6.4
16.5
(5)
NOTES:
1. For conditions shown as Mn. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 5.0V, +25°C ambient.
3. Per TTL driven input (V
IN
= 3.4V). All other inputs at V
CC
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 I
CC
formula. These limts are guaranteed but not tested.
6. I
C
= I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
I
CC
D
H
N
T
+ I
CCD
(f
CP
N
CP
/2 + fiNi)
I
CC
= Quiescent Current (I
CCL
, I
CCH
and I
CCZ
)
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
= Dynamc Current caused by an Input Transition Pair (HLH or LHL)
f
CP
= Clock Frequency for Register Devices (Zero for Non-Register Devices)
N
CP
= Number of Clock Inputs at f
CP
fi = Input Frequency
Ni = Number of Inputs at fi
POWER SUPPLY CHARACTERISTICS