X28C256J-20

The X28C256J-20 is a 256 kilobit (32KB) EEPROM (Electrically Erasable Programmable Read-Only Memory) chip designed for versatile data storage and retrieval. It operates with a 5V power supply and features a byte-wide data interface. The "J" in its designation indicates a specific package type, typically a dual in-line package (DIP), making it suitable for various electronic applications.
With a read access time of 200 nanoseconds (20 ns designation), it allows for fast data retrieval, ideal for applications requiring quick access. The chip supports up to 1 million erase/write cycles, ensuring reliability and longevity for data storage needs.
Additionally, the X28C256J-20 is compatible with standard 8-bit microcontrollers and can be programmed in-system, enabling flexibility in designing and updating firmware or data. Its applications range from consumer electronics to industrial devices, where non-volatile data storage is critical. Overall, the X28C256J-20 is a robust solution for embedded systems needing reliable and efficient memory.

The X28C256J-20 is a 256 Kbit (32 K x 8) EEPROM (Electrically Erasable Programmable Read-Only Memory) that offers non-volatile storage suitable for various applications. Key features include:
1. Memory Organization: 32K x 8 bits, allowing for the storage of 32 kilobytes of data.
2. Access Time: 200 ns access time, enabling relatively fast read operations.
3. Programming Voltage: Operates at a programming voltage of 5V, making it compatible with standard digital logic levels.
4. Endurance: Typically supports at least 1 million write/erase cycles, ensuring durability for frequent data updates.
5. Data Retention: Designed for a data retention period of at least 10 years under proper conditions.
6. EEPROM Technology: Allows for in-circuit programming and erasing, providing flexibility in data management.
7. Interface: Utilizes a standard parallel interface for ease of integration with microcontrollers and other digital systems.
Overall, the X28C256J-20 is ideal for applications requiring reliable and persistent data storage.

The X28C256J-20 is typically packaged in a 28-pin Dual In-line Package (DIP) format.

The X28C256J-20 is a 256 Kbit (32 K x 8) EEPROM, featuring a pin count of 28 pins. The device operates with a 5V power supply and is primarily used for non-volatile memory applications.
Pin Functions:
1. A0-A14: Address inputs (15 total for accessing memory).
2. D0-D7: Data inputs/outputs (8-bit wide).
3. Vcc: Power supply (+5V).
4. GND: Ground.
5. WE (Write Enable): Controls write operations.
6. CE (Chip Enable): Activates the device; must be low to enable reading/writing.
7. OE (Output Enable): Controls output data; must be low for data output.
The X28C256J-20 supports parallel access and is used in applications requiring data retention after power loss.

The X28C256J-20 is manufactured by Xicor, Inc., a company that specializes in the design and production of non-volatile memory products, specifically EEPROMs (Electrically Erasable Programmable Read-Only Memory) and other memory solutions. Xicor was known for its innovation in memory technology, catering to various industries such as consumer electronics, telecommunications, and automotive applications. In 2006, Xicor was acquired by Intersil Corporation, which further expanded its portfolio in the semiconductor industry. Xicor's products are utilized in applications requiring reliable data retention and performance.

The X28C256J-20 is a 256 Kbit EEPROM used in various applications including microcontroller firmware storage, data logging, programmable logic devices, and automotive systems. It is suitable for storing configuration settings, user data, and code in embedded systems, telecommunications, and consumer electronics, where non-volatile memory is essential for retaining information during power loss.

The X28C256J-20 is a 256 Kbit (32 KB) EEPROM. Equivalent products include the 27C256 (UV EPROM), AM28C256, and other similar EEPROMs or EPROMs with the same memory capacity and pin configuration. Always check specific voltage and timing specifications for compatibility.