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AT29C040A-12JI from ATM,Atmel

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AT29C040A-12JI

Manufacturer: ATM

4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory

Partnumber Manufacturer Quantity Availability
AT29C040A-12JI,AT29C040A12JI ATM 540 In Stock

Description and Introduction

4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory The AT29C040A-12JI is a 4-megabit (512K x 8) Flash memory chip manufactured by ATM (Atmel). Here are its key specifications:

- **Memory Organization**: 512K x 8 (4,194,304 bits)  
- **Speed**: 120 ns access time  
- **Voltage Supply**: 5V ± 10%  
- **Operating Current**: 50 mA (typical)  
- **Standby Current**: 100 µA (typical)  
- **Sector Architecture**: 256-byte sectors for flexible programming  
- **Endurance**: 10,000 write cycles (minimum)  
- **Data Retention**: 10 years  
- **Package**: 32-lead PLCC (Plastic Leaded Chip Carrier)  
- **Operating Temperature**: -40°C to +85°C (Industrial grade)  
- **Interface**: Parallel  
- **Programming Voltage**: 5V (no additional high voltage required)  

The device supports both byte and page write operations, with a page size of 256 bytes. It features a software data protection mechanism to prevent accidental writes.  

(Note: ATM refers to Atmel Corporation, which was acquired by Microchip Technology in 2016.)

Partnumber Manufacturer Quantity Availability
AT29C040A-12JI,AT29C040A12JI ATMEL 200 In Stock

Description and Introduction

4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory The AT29C040A-12JI is a 4-megabit (512K x 8) Flash memory chip manufactured by ATMEL. Here are its key specifications:  

- **Memory Organization**: 512K x 8  
- **Supply Voltage**: 5V ± 10%  
- **Access Time**: 120 ns  
- **Page Size**: 256 bytes  
- **Page Programming Time**: 10 ms (typical)  
- **Sector Architecture**: 128 sectors (4K bytes each)  
- **Endurance**: 10,000 write cycles (minimum)  
- **Data Retention**: 10 years (minimum)  
- **Operating Temperature Range**: -40°C to +85°C  
- **Package**: 32-lead PLCC (Plastic J-Leaded Chip Carrier)  
- **Interface**: Parallel  
- **Command Set**: JEDEC-standard  

This device supports both read and write operations with a page programming mode for efficient data updates.

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