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AT29C257-12JI
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AT29C257-12JI Description
AT29C257-12JI Description
The AT29C257-12JI is a 256Kbit Flash memory IC chip manufactured by Microchip Technology. This device is designed for parallel memory interface applications and features a 32K x 8 memory organization. It operates within a supply voltage range of 4.5V to 5.5V and offers an access time of 120 ns. The write cycle time for word and page operations is 10ms. The AT29C257-12JI is housed in a 32-lead plastic leaded chip carrier (PLCC) package and is suitable for surface-mount applications. This product is classified under HTSUS code 8542.32.0071 and has a moisture sensitivity level (MSL) of 2 (1 Year). Although it is currently marked as obsolete, it remains a reliable choice for legacy systems and specific applications requiring its unique features.
AT29C257-12JI Features
- Memory Size and Organization: The AT29C257-12JI provides 256Kbit of Flash memory organized as 32K x 8, offering a substantial amount of storage for various applications.
- Fast Access Time: With an access time of 120 ns, this Flash memory IC ensures quick data retrieval, enhancing overall system performance.
- Write Cycle Time: The write cycle time of 10ms for word and page operations ensures efficient data writing capabilities.
- Voltage Range: The device operates within a supply voltage range of 4.5V to 5.5V, making it suitable for a variety of power supply configurations.
- Parallel Interface: The parallel memory interface allows for straightforward integration into systems requiring high-speed data transfer.
- Surface Mount Compatibility: The surface-mount mounting type and 32-lead PLCC package make it ideal for modern PCB designs.
- Moisture Sensitivity Level: An MSL of 2 (1 Year) ensures the device remains reliable and functional in various environmental conditions.
- Compliance: The AT29C257-12JI is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.
AT29C257-12JI Applications
The AT29C257-12JI is well-suited for a variety of applications where reliable and efficient Flash memory is required. Some specific use cases include:
- Embedded Systems: Ideal for embedded systems requiring non-volatile memory for firmware storage and updates.
- Industrial Control Systems: Suitable for industrial applications where robust memory solutions are needed for data logging and control functions.
- Telecommunications: Can be used in telecommunication equipment for storing configuration data and firmware.
- Consumer Electronics: Applicable in consumer electronics for storing critical system data and user settings.
- Automotive Systems: Provides reliable memory solutions for automotive applications, including infotainment systems and engine control units.
Conclusion of AT29C257-12JI
The AT29C257-12JI Flash memory IC from Microchip Technology offers a robust and efficient solution for applications requiring reliable non-volatile memory. Its fast access time, efficient write cycle, and compatibility with parallel interfaces make it a standout choice in its category. Despite being marked as obsolete, the AT29C257-12JI remains a viable option for legacy systems and specific applications where its unique features are essential. Its compliance with international regulations and moisture sensitivity level further enhance its reliability and suitability for a wide range of environments.



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