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AT27C256R-55TC from ATMEL

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AT27C256R-55TC

Manufacturer: ATMEL

256K 32K x 8 OTP CMOS EPROM

Partnumber Manufacturer Quantity Availability
AT27C256R-55TC,AT27C256R55TC ATMEL 326 In Stock

Description and Introduction

256K 32K x 8 OTP CMOS EPROM The AT27C256R-55TC is a 256K (32K x 8) OTP EPROM manufactured by ATMEL. Here are its key specifications:

- **Memory Size**: 256Kbit (32K x 8)
- **Technology**: OTP (One-Time Programmable) EPROM
- **Access Time**: 55ns
- **Operating Voltage**: 5V ±10%
- **Package**: 28-lead TSOP (Thin Small Outline Package)
- **Operating Temperature Range**: Commercial (0°C to +70°C)
- **Programming Voltage (VPP)**: 12.5V ±5%
- **Standby Current**: 100µA (max)
- **Active Current**: 30mA (max)
- **Data Retention**: 10 years minimum
- **Pin Count**: 28
- **Organization**: 32,768 words x 8 bits
- **Speed Grade**: -55 (55ns access time)
- **Manufacturer**: ATMEL (now part of Microchip Technology)  

This device is designed for applications requiring non-volatile memory with fast read access.

Partnumber Manufacturer Quantity Availability
AT27C256R-55TC,AT27C256R55TC ATMEL 77 In Stock

Description and Introduction

256K 32K x 8 OTP CMOS EPROM The AT27C256R-55TC is a 256K (32K x 8) UV erasable and electrically programmable read-only memory (EPROM) manufactured by Atmel. Below are its key specifications:

- **Organization**: 32K x 8 (256K bits)  
- **Access Time**: 55 ns  
- **Operating Voltage**: 5V ± 10%  
- **Power Consumption**:  
  - Active Current: 30 mA (max)  
  - Standby Current: 100 μA (max)  
- **Programming Voltage (VPP)**: 12.5V  
- **Programming Method**: Fast programming algorithm  
- **Package**: 28-lead Plastic J-Lead Chip Carrier (PLCC)  
- **Operating Temperature Range**:  
  - Commercial: 0°C to +70°C  
  - Industrial: -40°C to +85°C  
- **Data Retention**: 10 years minimum  
- **Endurance**: 1,000 write/erase cycles  

This device is designed for high-performance applications requiring fast read access times and reliable non-volatile storage.

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