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TMS27C256-150JL from TI,Texas Instruments

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TMS27C256-150JL

Manufacturer: TI

262 144-Bitprogrammable Read-Only Memory 28-CDIP 0 to 70

Partnumber Manufacturer Quantity Availability
TMS27C256-150JL,TMS27C256150JL TI 65 In Stock

Description and Introduction

262 144-Bitprogrammable Read-Only Memory 28-CDIP 0 to 70 The TMS27C256-150JL is a 256K-bit (32K x 8) UV-erasable and electrically programmable read-only memory (EPROM) manufactured by Texas Instruments.  

### **Specifications:**  
- **Memory Size:** 256K-bit (32K x 8)  
- **Access Time:** 150 ns  
- **Operating Voltage:** 5V ± 5%  
- **Power Dissipation:**  
  - Active: 525 mW (max)  
  - Standby: 132 mW (max)  
- **Programming Voltage (VPP):** 12.5V  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package:** 28-pin Ceramic DIP (Dual In-line Package)  
- **Technology:** NMOS  

### **Descriptions and Features:**  
- **UV-Erasable:** Can be erased by exposure to ultraviolet light for reprogramming.  
- **Electrically Programmable:** Allows for byte-by-byte programming.  
- **Single 5V Power Supply:** Simplifies system design.  
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with standard logic levels.  
- **Three-State Outputs:** Supports bus-oriented systems.  
- **High Reliability:** Features include noise immunity and endurance for repeated programming cycles.  
- **Industrial Standard Pinout:** Compatible with other 27C256 EPROMs.  

This EPROM is commonly used in embedded systems, firmware storage, and other applications requiring non-volatile memory.

Application Scenarios & Design Considerations

262 144-Bitprogrammable Read-Only Memory 28-CDIP 0 to 70

Alternative Part Number

  • M27C256B-15F1 --: 256Kbit UV EPROM with 150ns access time in a 28-pin DIP, pin-compatible with the TMS27C256 and widely available.
  • AM27C256-150DC --: Equivalent 256Kbit CMOS EPROM rated at 150ns, same 28-pin DIP pinout and JEDEC-compatible programming.
  • NMC27C256Q150 --: 256Kbit EPROM with 150ns speed grade in a 28-pin package, functionally interchangeable with the TMS27C256.
  • NMC27C256Q-150 --: 256Kbit EPROM with 150ns speed grade, drop-in compatible pinout and timing for the original device.

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