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SN74LS161AMR1

BCD DECADE COUNTERS/ 4-BIT BINARY COUNTERS

Partnumber Manufacturer Quantity Availability
SN74LS161AMR1 2000 In Stock

Description and Introduction

BCD DECADE COUNTERS/ 4-BIT BINARY COUNTERS The SN74LS161AMR1 is a synchronous 4-bit binary counter manufactured by Texas Instruments.  

### **Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Number of Bits:** 4  
- **Counting Sequence:** Binary (0 to 15)  
- **Supply Voltage Range:** 4.75V to 5.25V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package Type:** SOIC-16  
- **Mounting Type:** Surface Mount  
- **Propagation Delay:** Typically 20ns  
- **Maximum Clock Frequency:** 25MHz  
- **Output Type:** Standard  

### **Descriptions:**  
The SN74LS161AMR1 is a synchronous presettable 4-bit binary counter with asynchronous clear. It features parallel load capability, allowing the counter to be preset to any value. The device operates synchronously, meaning the outputs change on the rising edge of the clock signal when enabled.  

### **Features:**  
- Synchronous counting operation  
- Asynchronous master reset (clear)  
- Parallel load capability  
- Carry output for cascading  
- Fully programmable via control inputs  
- Low power consumption (typical 45mW)  
- TTL-compatible inputs and outputs  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

BCD DECADE COUNTERS/ 4-BIT BINARY COUNTERS
Partnumber Manufacturer Quantity Availability
SN74LS161AMR1 MOT 1000 In Stock

Description and Introduction

BCD DECADE COUNTERS/ 4-BIT BINARY COUNTERS The SN74LS161AMR1 is a synchronous 4-bit binary counter manufactured by Motorola (MOT).  

### **Specifications:**  
- **Logic Type:** Synchronous 4-Bit Binary Counter  
- **Count Rate:** 32 MHz (typical)  
- **Operating Voltage:** 4.75V to 5.25V  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package Type:** SOIC-16  
- **Propagation Delay:** 15 ns (typical)  
- **Load Capacitance:** 15 pF  
- **Output Current (High/Low):** -0.4 mA / 8 mA  

### **Descriptions and Features:**  
- **Synchronous Operation:** All flip-flops are clocked simultaneously.  
- **Parallel Load Capability:** Allows loading of preset data.  
- **Asynchronous Clear:** Resets the counter independently of the clock.  
- **Carry Output:** Enables cascading of counters.  
- **Fully Programmable:** Can be preset to any binary value.  
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with TTL logic levels.  
- **Applications:** Frequency division, digital clocks, and sequential control circuits.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

BCD DECADE COUNTERS/ 4-BIT BINARY COUNTERS

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