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TMS27C256 from TI,Texas Instruments

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TMS27C256

Manufacturer: TI

TMS27C256 32768 BY 8-BIT UV ERASABLE TMS27PC256 32768 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES

Partnumber Manufacturer Quantity Availability
TMS27C256 TI 4890 In Stock

Description and Introduction

TMS27C256 32768 BY 8-BIT UV ERASABLE TMS27PC256 32768 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES The **TMS27C256** is a 256K-bit (32K x 8) UV-erasable and electrically programmable read-only memory (EPROM) manufactured by **Texas Instruments (TI)**.  

### **Specifications:**  
- **Memory Size:** 256K-bit (32K x 8)  
- **Access Time:** 150 ns (typical)  
- **Operating Voltage:** 5V ±10%  
- **Power Consumption:**  
  - Active: 100 mA (max)  
  - Standby: 30 mA (max)  
- **Programming Voltage (VPP):** 12.5V  
- **Operating Temperature Range:** 0°C to +70°C (commercial)  
- **Package Options:** 28-pin DIP (Dual In-line Package)  

### **Features:**  
- **UV-Erasable:** Can be erased by exposure to ultraviolet light for reprogramming.  
- **Single 5V Power Supply:** For read operations.  
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with standard logic levels.  
- **Three-State Outputs:** Allows for bus-oriented applications.  
- **Programmable:** Supports standard EPROM programming methods.  
- **High Reliability:** Endurance of at least 100 write/erase cycles.  

### **Applications:**  
- Microcontroller-based systems  
- Firmware storage  
- Embedded systems requiring non-volatile memory  

This EPROM is commonly used in legacy computing and industrial applications where reprogrammability is required.

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