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SN54161J from TI,Texas Instruments

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SN54161J

Manufacturer: TI, MOT

SYNCHRONOUS 4-BIT COUNTERS
Partnumber Manufacturer Quantity Availability
SN54161J TI, MOT 244 In Stock

Description and Introduction

SYNCHRONOUS 4-BIT COUNTERS The SN54161J is a synchronous 4-bit binary counter manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Synchronous 4-Bit Binary Counter  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** -55°C to 125°C  
- **Package Type:** Ceramic DIP (Dual In-line Package)  
- **Count Frequency:** Up to 32 MHz (typical)  
- **Number of Bits:** 4  
- **Reset Function:** Asynchronous Master Reset (MR)  
- **Load Function:** Synchronous Parallel Load  
- **Output Type:** Standard (TTL)  

### **Descriptions:**  
- The SN54161J is a high-speed 4-bit binary counter with synchronous counting and parallel load capabilities.  
- It features a fully independent clock circuit for synchronous operation.  
- The counter can be cleared asynchronously via the Master Reset (MR) pin.  
- It is designed for military and industrial applications with a wide temperature range.  

### **Features:**  
- Synchronous counting and parallel load operations  
- Asynchronous Master Reset (MR) for clearing the counter  
- Carry output for cascading multiple counters  
- TTL-compatible inputs and outputs  
- High-speed operation (up to 32 MHz)  
- Robust ceramic DIP package for harsh environments  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

SYNCHRONOUS 4-BIT COUNTERS

Alternative Part Number

  • CD40161BE --: CD4000-series CMOS synchronous 4-bit binary counter with the same 16-pin DIP pinout and function as the SN54161J, offering lower power consumption and wide availability.
  • MC14161BCP --: Motorola/ON CMOS 4-bit synchronous counter functionally equivalent to the 54161, pin-compatible in a 16-pin DIP package and widely used as a direct replacement.
  • HEF40161BP --: NXP HEF4000-series synchronous 4-bit binary counter with identical logic function and DIP-16 pinout, suitable as a form-fit-function alternative to the SN54161J.
  • 74LS161 --: Functionally equivalent 4-bit synchronous binary counter with asynchronous clear and load; LS TTL version is widely available and directly replaces the 54161 in most designs.
  • CD74HC161E --: CMOS 4-bit synchronous counter with the same pinout and logic function; lower power consumption and good availability as a modern substitute.
  • MC74HC161N --: Alternative CMOS 4-bit synchronous binary counter with matching function and pinout, suitable drop-in replacement when TTL drive is not critical.

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