X28C256J-20

The X28C256J-20 is a 32K x 8 (256K) EEPROM (Electrically Erasable Programmable Read-Only Memory) chip that allows non-volatile storage, meaning it retains data without power. It operates with a 5-volt supply and features a fast access time of 200 nanoseconds. This chip is significant for its ability to endure numerous write/erase cycles, typically around 100,000, making it ideal for applications requiring frequent updates.
The EEPROM supports in-circuit programming, allowing data to be written electrically and erased without removing the chip from the system. It uses a standard 28-pin dual in-line package (DIP) and is often utilized in applications such as firmware storage, configuration settings, and microcontroller programs where data retention and frequent updates are necessary.
Key features include data protection to prevent accidental writes, byte-level write capability for flexibility, and low-power consumption, making it suitable for various consumer and industrial applications. Its robust design ensures reliable performance in diverse environments.

The X28C256J-20 is a 256Kb EEPROM chip. Equivalent products include the AT28C256 from Atmel (now Microchip Technology), the SST39SF020A from SST (Microchip Technology), and the 28C256 from various manufacturers like STMicroelectronics and Microchip. These products offer similar EEPROM capabilities, though specific read/write speeds, endurance, and operating conditions may vary. Always check the datasheets for compatibility in your specific application.

The X28C256J-20 is a CMOS Electrically Erasable Programmable Read-Only Memory (EEPROM) with a capacity of 256K bits, organized as 32K x 8. Key features include:
1. Capacity: 32K x 8-bit organization.
2. Access Time: 200 ns, making it suitable for a variety of applications requiring a moderate speed.
3. Voltage: Operates at a single +5V power supply, ensuring compatibility with standard digital systems.
4. Endurance: Supports a high write cycle endurance, typically up to 100,000 write cycles per byte, ensuring reliability over time.
5. Data Retention: Capable of retaining data for up to 100 years, making it ideal for long-term data storage.
6. Programming: Byte-level programmability provides flexibility for data management.
7. Interface: Parallel interface suitable for a wide range of microcontroller and microprocessor systems.
8. Package Options: Available in various packaging options, such as DIP and PLCC, to accommodate different design requirements.
9. Low Power Consumption: Designed for low-power operation, making it suitable for power-sensitive applications.
These features make the X28C256J-20 a versatile choice for a variety of uses in embedded systems and digital electronics.

The X28C256J-20 is a 32K x 8 (256K-bit) serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chip. It typically has a 28-pin configuration. Here’s a brief overview of its pin functions:
1. A0-A14 (15 pins): Address inputs used to select memory locations.
2. DQ0-DQ7 (8 pins): Data input/output lines.
3. CE (Chip Enable): Activates the chip for reading or programming when low.
4. OE (Output Enable): Enables the output buffer when low; used for reading.
5. WE (Write Enable): Controls writing to the memory when low.
6. VCC: Power supply pin (typically +5V).
7. VSS: Ground pin.
8. NC (No Connect): Not used or internally connected; can be left unconnected.
This configuration allows the X28C256J-20 to be used for a variety of memory storage applications, balancing between performance and ease of interface with microprocessors and microcontrollers.

The X28C256J-20 is manufactured by Intersil Corporation, a company known for designing and producing analog and mixed-signal semiconductors. Intersil focuses on various applications including power management, thermal management, and precision analog components catered to industries such as communications, computing, industrial, and military/aerospace sectors.

The X28C256J-20 is a 256Kb (32K x 8) CMOS EEPROM, commonly used in applications requiring non-volatile memory storage. Its application areas include:
1. Embedded Systems: For storing firmware and configuration data.
2. Industrial Automation: Utilized in PLCs and other control systems for parameter storage.
3. Consumer Electronics: Storing user settings and operational data.
4. Medical Devices: For data logging and configuration settings.
5. Automotive Systems: Used in ECUs for storing calibration data.
6. Communication Equipment: Configuration and setup data storage.
7. Data Logging Devices: For non-volatile data retention.
The device's fast write times and reliability make it suitable for various data retention needs across these sectors.

The X28C256J-20 is an EEPROM (Electrically Erasable Programmable Read-Only Memory) chip with a 256-kilobit capacity. It typically comes in a PLCC (Plastic Leaded Chip Carrier) package, which is compact and suitable for mounting on circuit boards. The "-20" indicates a 200 ns access time.