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74LS194A

Motorola
Part Number 74LS194A
Manufacturer Motorola
Description 4-BIT BIDIRECTIONAL UNIVERSAL SHIFT REGISTER
Published Dec 6, 2020
Detailed Description 4-BIT BIDIRECTIONAL UNIVERSAL SHIFT REGISTER The SN54 / 74LS194A is a High Speed 4-Bit Bidirectional Universal Shift Reg...
Datasheet PDF File 74LS194A PDF File

74LS194A
74LS194A

Overview
4-BIT BIDIRECTIONAL UNIVERSAL SHIFT REGISTER The SN54 / 74LS194A is a High Speed 4-Bit Bidirectional Universal Shift Register.
As a high speed multifunctional sequential building block, it is useful in a wide variety of applications.
It may be used in serial-serial, shift left, shift right, serial-parallel, parallel-serial, and parallel-parallel data register transfers.
The LS194A is similar in operation to the LS195A Universal Shift Register, with added features of shift left without external connections and hold (do nothing) modes of operation.
It utilizes the Schottky diode clamped process to achieve high speeds and is fully compatible with all Motorola TTL families.
• Typical Shift Frequency of 36 MHz • Asynchronous Master Reset • Hold (Do Nothing) Mode • Fully Synchronous Serial or Parallel Data Transfers • Input Clamp Diodes Limit High Speed Termination Effects CONNECTION DIAGRAM DIP (TOP VIEW) VCC Q0 Q1 Q2 Q3 CP S1 S0 16 15 14 13 12 11 10 9 1 2 34 56 78 MR DSR P0 P1 P2 P3 DSL GND PIN NAMES LOADING (Note a) HIGH LOW S0, S1 P0 – P3 DSR DSL CP MR Q0 – Q3 Mode Control Inputs Parallel Data Inputs Serial (Shift Right) Data Input Serial (Shift Left) Data Input Clock (Active HIGH Going Edge) Input Master Reset (Active LOW) 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.
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.
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) b.
Temperature Ranges.
SN54/74LS194A 4-BIT BIDIRECTIONAL UNIVERSAL SHIFT REGISTER LOW POWER SCHOTTKY 16 1 J SUFFIX CERAMIC CASE 620-09 16 1 N SUFFIX PLASTIC CASE 648-08 16 1 D SUFFIX SOIC CASE 751B-03 ORDERING INFORMATION SN54LSXXXJ SN74LSXXXN SN74LSXXXD Ceramic Plastic SOIC FAST AND LS TTL DATA 5-360 LOGIC DIAGRAM P0 10 3 S1 9 S0 2 DSR SN54 / 74LS194A P1 P2 4 5 P3 6 7 DSL VCC = PIN 16 GND = PIN 8 ...


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