SN74LS164NSR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Shift Register
• Characteristics: Serial-In, Parallel-Out (SIPO), 8-bit, TTL Logic
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The SN74LS164NSR is a high-speed, 8-bit shift register that can be used in various digital applications.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Logic Family: LS-TTL (Low Power Schottky Transistor-Transistor Logic)
• Supply Voltage: 4.75V to 5.25V
• Operating Temperature Range: -40°C to 85°C
• Maximum Clock Frequency: 35 MHz
• Number of Stages: 8
• Output Drive Capability: 10 LSTTL Loads
• Propagation Delay: 15 ns (typical)

Detailed Pin Configuration

The SN74LS164NSR has a total of 14 pins:

1. SER (Serial Data Input)
2. CLK (Clock Input)
3. GND (Ground)
4. QA (Parallel Output A)
5. QB (Parallel Output B)
6. QC (Parallel Output C)
7. QD (Parallel Output D)
8. QE (Parallel Output E)
9. QF (Parallel Output F)
10. QG (Parallel Output G)
11. QH (Parallel Output H)
12. VCC (Positive Power Supply)
13. MR (Master Reset)
14. QH' (Complementary Parallel Output H)

Functional Features

• Serial-in, parallel-out operation allows for easy data shifting and storage.
• High-speed operation with a maximum clock frequency of 35 MHz.
• LS-TTL logic provides low power consumption and compatibility with other TTL devices.
• Master reset (MR) input allows for clearing the shift register to a known state.
• Complementary output (QH') provides an inverted version of the parallel output QH.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data processing.
• LS-TTL logic offers low power consumption.
• Compact SOIC package allows for easy integration into circuit designs.
• Complementary output provides additional flexibility in applications.

Disadvantages

• Limited number of stages (8) may not be sufficient for certain applications requiring larger shift registers.
• Requires an external clock signal for proper operation.

Working Principles

The SN74LS164NSR operates based on the principle of serial-in, parallel-out shifting. The serial data input (SER) receives data bit by bit, which is then shifted through the internal stages of the shift register upon each rising edge of the clock input (CLK). The parallel outputs (QA to QH) store the shifted data in parallel form. The master reset (MR) input can be used to clear the shift register to a known state.

Detailed Application Field Plans

The SN74LS164NSR can be utilized in various digital applications, including but not limited to:

1. Data communication systems
2. Serial-to-parallel data conversion
3. LED matrix control
4. Digital counters and timers
5. Shift register-based memory devices

Detailed and Complete Alternative Models

1. 74HC164: Similar 8-bit shift register with CMOS logic family.
2. CD4015: Dual 4-stage static shift register with complementary outputs.
3. SN54LS164: Equivalent 8-bit shift register with military-grade specifications.

These alternative models offer similar functionality to the SN74LS164NSR and can be considered as substitutes depending on specific requirements.

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