Datasheet

December 1990 8
Philips Semiconductors Product specification
4-bit bidirectional universal shift register 74HC/HCT194
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications” .
Output capability: standard
I
CC
category: MSI
Note to HCT types
The value of additional quiescent supply current (∆I
CC
) for a unit load of 1 is given in the family specifications.
To determine ∆I
CC
per input, multiply this value by the unit load coefficient shown in the table below.
INPUT UNIT LOAD COEFFICIENT
D
n
D
SR
, D
SL
CP
MR
S
n
0.15
0.15
0.50
0.45
0.90