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SN74LS161ADR from TI,Texas Instruments

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SN74LS161ADR

Manufacturer: TI

Synchronous 4-Bit Binary Counters

Partnumber Manufacturer Quantity Availability
SN74LS161ADR TI 435 In Stock

Description and Introduction

Synchronous 4-Bit Binary Counters The SN74LS161ADR is a synchronous presettable binary counter manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Family:** LS  
- **Logic Type:** Synchronous 4-Bit Binary Counter  
- **Number of Bits:** 4  
- **Counting Sequence:** Up  
- **Trigger Type:** Positive Edge  
- **Supply Voltage (VCC):** 4.75V to 5.25V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package / Case:** SOIC-16  
- **Mounting Type:** Surface Mount  
- **Propagation Delay Time:** 24 ns (typical)  
- **Maximum Clock Frequency:** 32 MHz  
- **Output Type:** Standard  

### **Descriptions:**  
The SN74LS161ADR is a synchronous 4-bit binary counter with asynchronous reset and parallel load capability. It features a carry output for cascading multiple counters and operates in a fully synchronous mode for predictable counting.  

### **Features:**  
- Synchronous counting and loading  
- Asynchronous master reset  
- Parallel load capability  
- Carry output for cascading  
- Fully programmable via preset inputs  
- High-speed operation with 24 ns typical propagation delay  
- Low-power Schottky (LS) technology  

This counter is commonly used in digital systems for frequency division, timing, and control applications.

Application Scenarios & Design Considerations

Synchronous 4-Bit Binary Counters

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