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SN54LS166J from TI,Texas Instruments

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SN54LS166J

Manufacturer: TI, TM, MOT

8-BIT SHIFT REGISTERS

Partnumber Manufacturer Quantity Availability
SN54LS166J TI, TM, MOT 850 In Stock

Description and Introduction

8-BIT SHIFT REGISTERS The SN54LS166J is a parallel-load, 8-bit shift register manufactured by Texas Instruments (MOT refers to Motorola, but the correct manufacturer is Texas Instruments).  

### **Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Number of Bits:** 8  
- **Function:** Parallel-in, Serial-out (PISO) Shift Register  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** -55°C to +125°C (Military-grade)  
- **Package Type:** Ceramic DIP (Dual In-line Package)  
- **Input Type:** TTL-Compatible  
- **Output Type:** Standard  
- **Clock Frequency:** Up to 25 MHz (typical)  
- **Propagation Delay:** 30 ns (max)  

### **Descriptions:**  
The SN54LS166J is a high-speed, 8-bit shift register with parallel-load capability. It allows data to be loaded in parallel and shifted out serially. It features synchronous operation with a clock input and an asynchronous master reset.  

### **Features:**  
- Parallel or serial data entry  
- Synchronous operation with clock input  
- Asynchronous master reset  
- Buffered clock and serial inputs  
- TTL-compatible inputs and outputs  
- High noise immunity  
- Low power consumption  

This device is commonly used in data storage, serial-to-parallel conversion, and digital signal processing applications.

Application Scenarios & Design Considerations

8-BIT SHIFT REGISTERS

Alternative Part Number

  • 74LS166N --: Same 8-bit parallel-in/serial-out shift register function in a DIP package; widely available and pin-compatible in function, though commercial temperature range only.
  • MC74HC166N --: CMOS 8-bit parallel-in/serial-out shift register with equivalent logic function and DIP package; lower power consumption and broad availability.
  • CD74HC166E --: High-speed CMOS 8-bit parallel-in/serial-out shift register in DIP, functionally equivalent to the LS166 with improved power characteristics.
  • DM54LS166J --: Direct functional equivalent 8-bit parallel-in/serial-out shift register in the same LS TTL family, same 16-pin DIP package and pinout, widely available from a major supplier.
  • 74LS166PC --: Same 8-bit parallel-load shift register function with LS TTL-compatible levels and DIP package; commercial temperature grade but electrically interchangeable in most designs.
  • MC54LS166J --: Pin-compatible LS TTL 8-bit shift register from an alternate vendor, matching the original military temperature range and DIP footprint.
  • 54LS166DMQB --: Equivalent 54LS166 shift register with identical logic function, pinout and LS TTL electrical characteristics.
  • 5962-8955301EA --: QML-qualified military-grade 54LS166 equivalent, suitable as a form-fit-function replacement for the original part.

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