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SN54LS165AJ from TI,Texas Instruments

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SN54LS165AJ

Manufacturer: TI

Parallel-Load 8-Bit Shift Registers

Partnumber Manufacturer Quantity Availability
SN54LS165AJ TI 790 In Stock

Description and Introduction

Parallel-Load 8-Bit Shift Registers The SN54LS165AJ is a parallel-load 8-bit shift register manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Technology:** TTL (Transistor-Transistor Logic)  
- **Number of Bits:** 8  
- **Function:** Parallel-in, Serial-out (PISO) shift register  
- **Supply Voltage (VCC):** 4.75V to 5.25V  
- **Operating Temperature Range:** -55°C to +125°C (Military-grade)  
- **Package Type:** Ceramic DIP (Dual In-line Package)  
- **Pin Count:** 16  

### **Descriptions:**  
- The SN54LS165AJ is designed for high-speed parallel-to-serial data conversion.  
- It features synchronous serial shifting with asynchronous parallel loading.  
- Suitable for military and industrial applications due to its extended temperature range.  

### **Features:**  
- **Parallel Load Inputs:** 8-bit parallel data input (A-H)  
- **Serial Data Output (QH):** Provides shifted-out data  
- **Clock and Shift/Load Control:** Synchronous operation with clock (CLK) and shift/load (SH/LD) inputs  
- **Complementary Outputs:** QH and QH' (inverted)  
- **Schottky-clamped Inputs:** Improves noise immunity and switching speed  
- **Low Power Consumption:** Typical power dissipation of 45mW  

This device is part of TI's 54LS series, which is the military-grade version of the 74LS series.

Application Scenarios & Design Considerations

Parallel-Load 8-Bit Shift Registers

Alternative Part Number

  • CD54HC165F3A --: RCA/Harris-origin CD54HC165 is a direct functional equivalent 8-bit parallel-load shift register in a ceramic DIP, pin-compatible with the SN54LS165AJ and available in the same military temperature range.
  • MC54HC165J --: Motorola MC54HC165J is a pin-compatible 8-bit parallel-in/serial-out shift register in a ceramic package, offering a drop-in functional replacement for the LS165 with lower power consumption.
  • 74HC165N --: The 74HC165N is a widely available 8-bit parallel-load shift register with the same logic function and pinout; it is a practical commercial-grade substitute when military screening is not required.

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