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SN74LS681N from TI,Texas Instruments

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SN74LS681N

Manufacturer: TI

4-Bit Parallel Binary Accumulator 20-PDIP 0 to 70

Partnumber Manufacturer Quantity Availability
SN74LS681N TI 126 In Stock

Description and Introduction

4-Bit Parallel Binary Accumulator 20-PDIP 0 to 70 The SN74LS681N is a 4-bit parallel binary accumulator manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Function:** 4-bit Parallel Binary Accumulator  
- **Operating Voltage:** 4.75V to 5.25V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package Type:** PDIP (Plastic Dual In-Line Package)  
- **Pin Count:** 20  
- **Propagation Delay:** Typically 25ns  
- **Power Consumption:** Low power dissipation  

### **Descriptions and Features:**  
- Performs arithmetic and logic operations on 4-bit data.  
- Includes a built-in accumulator register.  
- Supports parallel data loading.  
- Features carry-in and carry-out for cascading multiple devices.  
- Compatible with TTL (Transistor-Transistor Logic) levels.  
- Used in digital systems for arithmetic processing, counters, and control applications.  

For detailed electrical characteristics and timing diagrams, refer to the official TI datasheet.

Application Scenarios & Design Considerations

4-Bit Parallel Binary Accumulator 20-PDIP 0 to 70

Alternative Part Number

  • DM74LS681N --: Direct pin-compatible 4-bit magnitude comparator in the same LS TTL family, functionally equivalent to the SN74LS681N.
  • 74LS681N --: Standard 74LS681 4-bit magnitude comparator with identical logic function and DIP package, usable as a drop-in replacement.
  • CD74HC681E --: CMOS 4-bit magnitude comparator with similar function and DIP pinout; verify speed and drive levels, but it is a viable alternative when LS parts are unavailable.

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