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TMS27C020-25 from TM

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TMS27C020-25

Manufacturer: TM, INTEL

READ-ONLY MEMORIES
Partnumber Manufacturer Quantity Availability
TMS27C020-25,TMS27C02025 TM, INTEL 270 In Stock

Description and Introduction

READ-ONLY MEMORIES The TMS27C020-25 is a 2-megabit (256K x 8) UV-erasable and electrically programmable read-only memory (EPROM) manufactured by Texas Instruments (TM).  

### **Specifications:**  
- **Organization:** 256K x 8  
- **Access Time:** 250 ns  
- **Operating Voltage:** 5V ± 10%  
- **Power Consumption:**  
  - Active: 100 mA (max)  
  - Standby: 30 mA (max)  
- **Programming Voltage (VPP):** 12.5V  
- **Data Retention:** 10 years minimum  
- **Endurance:** 1000 program/erase cycles  
- **Package Options:**  
  - 32-pin DIP (Dual In-line Package)  
  - 32-pin PLCC (Plastic Leaded Chip Carrier)  

### **Descriptions and Features:**  
- **UV-Erasable:** Can be erased by exposure to ultraviolet light for reprogramming.  
- **Single 5V Power Supply:** Operates on a standard 5V supply for read operations.  
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with TTL logic levels.  
- **Three-State Outputs:** Allows for bus-oriented applications.  
- **Programmable:** Supports fast programming algorithms for efficient data storage.  
- **High Reliability:** Designed for industrial and commercial applications.  

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

Application Scenarios & Design Considerations

READ-ONLY MEMORIES

Alternative Part Number

  • M27C2001-25F1 --: 2 Mbit UV EPROM with 256K x 8 organization and 250 ns access time, pin-compatible with the TMS27C020 and widely available from a major vendor.
  • AM27C020-250DC --: 2 Mbit CMOS EPROM in 32-pin DIP with 250 ns speed, functionally equivalent to the TMS27C020-25 and a common second source.
  • HN27C201A-25 --: 2 Mbit UV EPROM with 250 ns access time and compatible pinout, suitable as a drop-in replacement for the TMS27C020-25.
  • M27C2001-25XF1 --: Same 2 Mbit EPROM density and 250 ns timing as the original, with compatible JEDEC pinout; suitable when the standard 25F1 variant is unavailable.

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