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SMJ27C256-25JM from TI,Texas Instruments

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SMJ27C256-25JM

Manufacturer: TI

256K UVEPROM

Partnumber Manufacturer Quantity Availability
SMJ27C256-25JM,SMJ27C25625JM TI 2209 In Stock

Description and Introduction

256K UVEPROM The SMJ27C256-25JM is a 256K (32K x 8) UV erasable and electrically programmable read-only memory (EPROM) manufactured by Texas Instruments (TI).  

### **Key Specifications:**  
- **Organization:** 32K x 8  
- **Access Time:** 250 ns  
- **Operating Voltage:** 5V ±10%  
- **Power Consumption:**  
  - Active: 100 mA (max)  
  - Standby: 40 mA (max)  
- **Programming Voltage (VPP):** 12.5V  
- **Temperature Range:**  
  - Commercial (0°C to 70°C)  
  - Industrial (-40°C to 85°C)  
  - Military (-55°C to 125°C)  
- **Package:** 28-pin Ceramic DIP (Dual In-line Package)  

### **Features:**  
- High-reliability CMOS technology  
- Single 5V power supply for read operation  
- UV erasable and reprogrammable  
- TTL-compatible inputs and outputs  
- Three-state output for bus compatibility  
- JEDEC-approved pinout  

### **Applications:**  
- Microcontroller-based systems  
- Firmware storage  
- Industrial and military embedded systems  

This EPROM is designed for applications requiring non-volatile memory with reprogrammability.

Application Scenarios & Design Considerations

256K UVEPROM

Alternative Part Number

  • M27C256B-25F1 --: 256Kbit EPROM with 250ns access time in a 28-pin DIP package, functionally equivalent to the SMJ27C256 and widely available.
  • AM27C256-250DC --: Pin-compatible 256Kbit CMOS EPROM with 250ns access time, a common drop-in replacement for the 27C256 series.
  • NMC27C256Q-250 --: 256Kbit EPROM with 250ns speed grade and matching pinout, suitable as an alternative when the original TI part is unavailable.

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