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SN54LS168J from TI,Texas Instruments

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SN54LS168J

Manufacturer: TI

BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS

Partnumber Manufacturer Quantity Availability
SN54LS168J TI 1500 In Stock

Description and Introduction

BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS The SN54LS168J is a synchronous 4-bit up/down decade counter manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Supply Voltage (VCC):** 4.75V to 5.25V  
- **Operating Temperature Range:** -55°C to +125°C (Military Grade)  
- **Package Type:** 16-pin CDIP (Ceramic Dual In-Line Package)  
- **Counting Sequence:** Synchronous up/down counting  
- **Count Range:** 0 to 9 (decade)  
- **Clock Input:** Positive-edge triggered  
- **Parallel Load Capability:** Yes  
- **Output Type:** TTL-compatible  

### **Descriptions and Features:**  
- Synchronous operation for precise counting.  
- Can function as an up or down counter based on control inputs.  
- Includes parallel load feature for preset values.  
- Cascadable for higher-bit counters.  
- Low-power consumption typical of LS series.  
- Designed for high-reliability applications, including military and aerospace.  

This device is part of TI’s 54-series, which is characterized by its ruggedness and extended temperature range.

Application Scenarios & Design Considerations

BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS

Alternative Part Number

  • 74LS168N --: Same 4-bit synchronous up/down counter function in a different package and commercial temperature grade; widely available and pin-compatible in function.
  • CD74HC168E --: High-speed CMOS equivalent 4-bit synchronous counter with similar logic function, offering lower power consumption as a functional substitute.
  • MC74HC168N --: Second-source CMOS 4-bit synchronous up/down counter with comparable functionality, useful when TI parts are unavailable.

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