Philips Semiconductors
Product specification
8-bit parallel-in/serial-out shift register
PIN DESCRIPTION
PIN NO.
1
2, 3, 4, 5, 10, 11, 12, 14
6
7
8
9
13
15
16
SYMBOL
D
s
D
0
to D
7
CE
CP
GND
MR
Q
7
PE
V
CC
NAME AND FUNCTION
serial data input
parallel data inputs
clock enable input (active LOW)
74HC/HCT166
clock input (LOW-to-HIGH edge-triggered)
ground (0 V)
asynchronous master reset (active LOW)
serial output from the last stage
parallel enable input (active LOW)
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
December 1990
3