SN54LS164 Motorola, SN54LS164 Datasheet
SN54LS164
Manufacturer Part Number
SN54LS164
Description
SERIAL-IN PARALLEL-OUT SHIFT REGISTER
Manufacturer
Motorola
Datasheet
1.SN54LS164.pdf
(4 pages)
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SERIAL-IN PARALLEL-OUT
SHIFT REGISTER
ter. Serial data is entered through a 2-Input AND gate synchronous with the
LOW to HIGH transition of the clock. The device features an asynchronous
Master Reset which clears the register setting all outputs LOW independent of
the clock. It utilizes the Schottky diode clamped process to achieve high
speeds and is fully compatible with all Motorola TTL products.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40 A 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)
PIN NAMES
A, B
CP
MR
Q 0 – Q 7
Temperature Ranges.
The SN54 / 74LS164 is a high speed 8-Bit Serial-In Parallel-Out Shift Regis-
Typical Shift Frequency of 35 MHz
Asynchronous Master Reset
Gated Serial Data Input
Fully Synchronous Data Transfers
Input Clamp Diodes Limit High Speed Termination Effects
ESD > 3500 Volts
V CC
14
1
A
Q 7
13
2
B
Data Inputs
Clock (Active HIGH Going Edge) Input
Master Reset (Active LOW) Input
Outputs (Note b)
Q 6
CONNECTION DIAGRAM DIP (TOP VIEW)
12
Q 0
3
Q 5
11
Q 1
4
Q 4
10
Q 2
5
MR
Q 3
9
6
GND
CP
8
7
FAST AND LS TTL DATA
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
0.5 U.L.
0.5 U.L.
0.5 U.L.
HIGH
10 U.L.
LOADING (Note a)
5-1
5 (2.5) U.L.
LOW
0.25 U.L.
0.25 U.L.
0.25 U.L.
1
2
8
14
14
SERIAL-IN PARALLEL-OUT
SN54/74LS164
ORDERING INFORMATION
14
LOW POWER SCHOTTKY
1
1
SN54LSXXXJ
SN74LSXXXN Plastic
SN74LSXXXD SOIC
A
B
CP
SHIFT REGISTER
MR Q 0 Q 1 Q 2 Q 3 Q 4 Q 5 Q 6 Q 7
1
9
LOGIC SYMBOL
8-BIT SHIFT REGISTER
3 4
V CC = PIN 14
GND = PIN 7
LS164
5
Ceramic
6 10 11 12 13
CASE 751A-02
CASE 632-08
CASE 646-06
CERAMIC
N SUFFIX
D SUFFIX
J SUFFIX
PLASTIC
SOIC
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SN54LS164 Summary of contents
Page 1
... LOW to HIGH transition of the clock. The device features an asynchronous Master Reset which clears the register setting all outputs LOW independent of the clock. It utilizes the Schottky diode clamped process to achieve high speeds and is fully compatible with all Motorola TTL products. Typical Shift Frequency of 35 MHz Asynchronous Master Reset ...
Page 2
PIN GND = PIN 7 = PIN NUMBERS FUNCTIONAL DESCRIPTION The LS164 is an ...
Page 3
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE Symbol Symbol Parameter Parameter V IH Input HIGH Voltage Input LOW Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH ...
Page 4
I /f max t W 1.3 V 1 PHL Q 1.3 V CONDITIONS Figure 1. Clock to ...