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M74HC237M1R from ST,ST Microelectronics

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M74HC237M1R

Manufacturer: ST, ST,ST, STM

3 TO 8 LINE DECODER LATCH

Partnumber Manufacturer Quantity Availability
M74HC237M1R ST, ST,ST, STM 20429 In Stock

Description and Introduction

3 TO 8 LINE DECODER LATCH The M74HC237M1R is a high-speed CMOS logic device manufactured by STMicroelectronics (ST). Below are the factual details about the part:

### **Manufacturer:**  
STMicroelectronics (ST)  

### **Specifications:**  
- **Logic Family:** HC (High-Speed CMOS)  
- **Function:** 3-to-8 Line Decoder/Demultiplexer with Address Latches  
- **Number of Inputs:** 3 (Address Inputs)  
- **Number of Outputs:** 8 (Active LOW)  
- **Supply Voltage Range:** 2V to 6V  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** SO-16 (Small Outline 16-pin)  
- **Propagation Delay:** Typically 15ns at 5V  
- **Input Current (Max):** ±1µA  
- **Output Current (Max):** ±5.2mA  

### **Descriptions:**  
The M74HC237M1R is a 3-to-8 line decoder/demultiplexer with latched address inputs. It features three address inputs (A0, A1, A2), an active LOW enable input (E1), and two active HIGH enable inputs (E2, E3). The device decodes the input address and activates one of the eight outputs (Y0-Y7) based on the input combination.  

### **Features:**  
- **Latch Function:** Address inputs are latched when the latch enable (LE) is HIGH.  
- **Low Power Consumption:** CMOS technology ensures low power dissipation.  
- **High Noise Immunity:** Typical of HC logic family.  
- **Wide Operating Voltage:** Supports 2V to 6V operation.  
- **Output Drive Capability:** Can drive up to 10 LSTTL loads.  
- **Schmitt Trigger Action:** Provides improved noise immunity on inputs.  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

3 TO 8 LINE DECODER LATCH

Alternative Part Number

  • CD74HC237M --: Same 3-to-8 decoder/demultiplexer function with latched inputs, pin-compatible SOIC package, widely available and directly interchangeable.
  • MC74HC237ADG --: Equivalent HC-series 3-to-8 decoder with latches in SOIC, same logic family and pinout, good second-source option.
  • 74HC237D --: Standard 74HC237 decoder/demultiplexer with latched address inputs in SOIC, functionally identical and pin-compatible.
  • SN74HC237D --: Another 74HC 3-to-8 decoder/demultiplexer with latches in SOIC, functionally equivalent to the original and easy to source as a fallback option.

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