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SN74LS161AN.. from MOT,Motorola

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SN74LS161AN..

Manufacturer: MOT

BCD decade counter/4-bit binary counter

Partnumber Manufacturer Quantity Availability
SN74LS161AN..,SN74LS161AN MOT 25 In Stock

Description and Introduction

BCD decade counter/4-bit binary counter The SN74LS161AN is a synchronous 4-bit binary counter manufactured by Texas Instruments (MOT refers to Motorola, but Texas Instruments is the correct manufacturer).  

### **Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Type:** Synchronous 4-Bit Binary Counter  
- **Operating Voltage:** 4.75V to 5.25V  
- **Clock Frequency:** Up to 32 MHz  
- **Count Sequence:** Binary (0 to 15)  
- **Reset:** Asynchronous Master Reset (MR)  
- **Parallel Load:** Synchronous (PE)  
- **Outputs:** 4-bit parallel (Q0-Q3), Ripple Carry Output (RCO)  
- **Propagation Delay:** Typically 15 ns  
- **Package:** 16-pin DIP (Dual In-line Package)  
- **Operating Temperature Range:** 0°C to 70°C  

### **Descriptions & Features:**  
- Synchronous operation for reliable counting.  
- Asynchronous master reset (MR) clears all flip-flops.  
- Parallel load (PE) allows presetting the counter.  
- Ripple Carry Output (RCO) enables cascading multiple counters.  
- Fully programmable via parallel inputs (A-D).  
- TTL-compatible inputs and outputs.  
- Low power consumption typical of LS series.  

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

Application Scenarios & Design Considerations

BCD decade counter/4-bit binary counter

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