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M74HC393M1R from ST,ST Microelectronics

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M74HC393M1R

Manufacturer: ST

DUAL BINARY COUNTER

Partnumber Manufacturer Quantity Availability
M74HC393M1R ST 502 In Stock

Description and Introduction

DUAL BINARY COUNTER The M74HC393M1R is a dual 4-bit binary ripple counter manufactured by STMicroelectronics (ST).  

### **Specifications:**  
- **Logic Family:** HC (High-Speed CMOS)  
- **Supply Voltage:** 2V to 6V  
- **Operating Temperature Range:** -40°C to +125°C  
- **Number of Counters:** Dual (two independent 4-bit counters)  
- **Counting Sequence:** Binary (0 to 15)  
- **Reset Function:** Asynchronous master reset (active LOW)  
- **Output Type:** Standard (push-pull)  
- **Propagation Delay:** Typically 20ns at 5V  
- **Package:** SO-14 (Small Outline, 14 pins)  

### **Descriptions:**  
- The M74HC393M1R consists of two identical 4-bit ripple counters with separate clock and reset inputs.  
- Each counter increments on the HIGH-to-LOW transition of the clock signal.  
- The asynchronous reset (MR) clears all flip-flops when pulled LOW.  

### **Features:**  
- **Wide Operating Voltage:** Compatible with 2V to 6V systems.  
- **High Noise Immunity:** CMOS technology ensures reliable operation.  
- **Low Power Consumption:** Suitable for battery-operated devices.  
- **Independent Counters:** Each 4-bit counter operates separately.  
- **Asynchronous Reset:** Allows immediate clearing of the count.  

This device is commonly used in frequency division, timing circuits, and digital counting applications.

Application Scenarios & Design Considerations

DUAL BINARY COUNTER

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