SN54LS95B Datasheet, PDF (1/6 Pages) Motorola, Inc – 4-BIT SHIFT REGISTER

4-BIT SHIFT REGISTER
The SN54/74LS95B is a 4-Bit Shift Register with serial and parallel
synchronous operating modes. The serial shift right and parallel load are acti-
vated by separate clock inputs which are selected by a mode control input.
The data is transferred from the serial or parallel D inputs to the Q outputs
synchronous with the HIGH to LOW transition of the appropriate clock input.
The LS95B is fabricated with the Schottky barrier diode process for high
speed and is completely compatible with all Motorola TTL families.
• Synchronous, Expandable Shift Right
• Synchronous Shift Left Capability
• Synchronous Parallel Load
• Separate Shift and Load Clock Inputs
• Input Clamp Diodes Limit High Speed Termination Effects
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC Q0
14 13
Q1 Q2
12 11
Q3 CP1 CP2
10 9
8
NOTE:
The Flatpak version has the
same pinouts (Connection
Diagram) as the Dual In-Line
Package.
1
2
3
4
5
6
7
DS P0 P1 P2 P3 S GND
VCC = PIN 14
GND = PIN 7
PIN NAMES
LOADING (Note a)
HIGH
LOW
S
DS
P0 – P3
CP1
CP2
Q0 – Q3
Mode Control Input
Serial Data Input
Parallel Data Inputs
Serial Clock (Active LOW Going Edge) Input
Parallel Clock (Active LOW Going Edge) Input
Parallel Outputs (Note b)
0.5 U.L.
0.5 U.L.
0.5 U.L.
0.5 U.L.
0.5 U.L.
10 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
5 (2.5) U.L.
NOTES:
a. 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW.
b. The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)
Temperature Ranges.
SN54/74LS95B
4-BIT SHIFT REGISTER
LOW POWER SCHOTTKY
14
1
J SUFFIX
CERAMIC
CASE 632-08
14
1
N SUFFIX
PLASTIC
CASE 646-06
14
1
D SUFFIX
SOIC
CASE 751A-02
ORDERING INFORMATION
SN54LSXXJ
SN74LSXXN
SN74LSXXD
Ceramic
Plastic
SOIC
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply Voltage
TA
Operating Ambient Temperature Range
IOH
Output Current — High
IOL
Output Current — Low
Min
Typ
Max
Unit
54
4.5
5.0
5.5
V
74
4.75
5.0
5.25
54
– 55
25
125
°C
74
0
25
70
54, 74
– 0.4
mA
54
4.0
mA
74
8.0
FAST AND LS TTL DATA
5-171