MM54C164 MM74C164 8-Bit Parallel-Out Serial Shift Register
February 1988
MM54C164 MM74C164
8-Bit Parallel-Out Serial Shift Register
General Description
The MM54C164 MM74C164 shift registers are a monolithic
complementary MOS (CMOS) integrated circuit constructed
with N- and P-channel enhancement transistors These 8-bit
shift registers have gated serial inputs and clear Each regis-
ter bit is a D-type master slave flip-flop A high-level input
enables the other input which will then determine the state
of the flip-flop
Data is serially shifted in and out of the 8-bit register during
the positive going transition of clock pulse Clear is indepen-
dent of the clock and accomplished by a low level at the
clear input All inputs are protected against electrostatic ef-
fects
Features
Y
Y
Y
Y
Y
Supply voltage range
Tenth power TTL compatible
High noise immunity
Low power
Medium speed operation
3V to 15V
drive 2 LPTTL loads
0 45 V
CC
(typ )
50 nW (typ )
0 8 MHz (typ )
with 10V supply
Applications
Y
Y
Y
Y
Data terminals
Instrumentation
Medical electronics
Alarm systems
Y
Y
Y
Industrial electronics
Remote metering
Computers
Truth Table
Serial Inputs A and B
Inputs
t
n
A
1
0
1
0
B
1
1
0
0
Output
t
n
a
1
Q
A
1
0
0
0
Connection Diagram
Dual-In-Line Package
TL F 5896 鈥?2
Top View
Order Number MM54C164 or MM74C164
Block Diagram
TL F 5896 鈥?1
C
1995 National Semiconductor Corporation
TL F 5896
RRD-B30M105 Printed in U S A