MM54C95 MM74C95 4-Bit Right-Shift Left-Shift Register
February 1988
MM54C95 MM74C95
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 鈥樷€?鈥欌€?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 鈥樷€?鈥欌€?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
Y
Y
Y
Y
Y
Y
Y
Y
10 MHz (typ )
V
CC
e
10V C
L
e
50 pF
High noise immunity
0 45 V
CC
(typ )
Low power
100 nW (typ )
Tenth power TTL compatible
Drive 2 LTTL loads
Wide supply voltage range
3V to 15V
Synchronous parallel load
Parallel inputs and outputs from each flip-flop
Negative edge triggered clocking
The MM54C95 MM74C95 follows the MM54L95
MM74L95 Pinout
Applications
Y
Y
Y
Y
Data terminals
Instrumentation
Automotive
Medical electronics
Y
Y
Y
Y
Alarm systems
Remote metering
Industrial electronics
Computers
Block and Connection Diagrams
TL F 5890 鈥?2
TL F 5890 鈥?1
Dual-In-Line Package
TL F 5890 鈥?3
Mode Control
e
0 for Right Shift
Mode Control
e
1 for Left Shift or Parallel Load
TL F 5890 鈥?4
Order Number MM54C95 or MM74C95
C
1995 National Semiconductor Corporation
TL F 5890
RRD-B30M105 Printed in U S A
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2
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