TLF5890

February 1988

MM54C95MM74C95

4-Bit Right-Shift Left-Shift Register

General Description

This 4-bit shift register is a monolithic complementary MOS

(CMOS) integrated circuit composed of four D flip-flops

This register will perform right-shift or left-shift operations

dependent upon the logical input level to the mode control

A number of these registers may be connected in series to

form an N-bit right-shift or left-shift register

When a logical ‘‘0’’ level is applied to the mode control in-

put the output of each flip-flop is coupled to the D input of

the succeeding flip flop Right-shift operation is performed

by clocking at the clock 1 input and serial data entered at

the serial input clock 2 and parallel inputs A through D are

inhibited With a logical ‘‘1’’ level applied to the mode con-

trol outputs to succeeding stages are decoupled and paral-

lel loading is possible or with external interconnection shift-

left operation can be accomplished by connecting the out-

put of each flip-flop to the parallel input of the previous

flip-flop and serial data is entered at input D

Features

Y

Medium speed operation

10 MHz (typ)

Y

High noise immunity

Y

Low power

100 nW(typ)

Y

Tenth power TTL compatible

Drive 2 LTTL loads

Y

Wide supply voltage range

3V to 15V

Y

Synchronous parallel load

Y

Parallel inputs and outputs from each flip-flop

Y

Negative edge triggered clocking

Y

The

MM54C95MM74C95

follows

the

MM54L95

MM74L95 Pinout

Applications

Y

Data terminals

Y

Instrumentation

Y

Automotive

Y

Medical electronics

Y

Alarm systems

Y

Remote metering

Y

Industrial electronics

Y

Computers

Block and Connection Diagrams

TLF5890 – 1

Dual-In-Line Package

TLF5890 – 4

Order Number MM54C95 or MM74C95

TLF5890 – 2

TLF5890 – 3

C1995 National Semiconductor Corporation

RRD-B30M105Printed in U S A