X28HC256JI-90RR Datasheet

5V, Byte Alterable EEPROM


The X28HC256 is a second generation high performance CMOS 32k x 8 EEPROM. It is fabricated with Intersil’s proprietary, textured poly floating gate technology, providing a highly reliable 5V only nonvolatile memory

• Access time: 70ns
• Simple byte and page write
   - Single 5V supply
   - No external high voltages or VP-P control circuits
   - Self-timed
   - No erase before write
   - No complex programming algorithms
   - No overerase problem
• Low power CMOS
   - Active: 60mA
   - Standby: 500µA
• Software data protection
   - Protects data against system level inadvertent writes
• High speed page write capability
• Highly reliable Direct Write™ cell
   - Endurance: 1,000,000 cycles
   - Data retention: 100 years
• Early end of write detection
   - DATA polling
   - Toggle bit polling
• Pb-free plus anneal available (RoHS compliant)




Manufacturer information


Intersil Corporation is a market leader in power management and precision analog technology for many of the most rigorous applications in the computing, consumer, and industrial markets. The company supplies a full range of power IC solutions including battery management, computing power, display power, regulators and controllers, and power modules; as well as precision analog components such as amplifiers and buffers, proximity and light sensors, data converters, timing products, optoelectronics and interface products. As a major supplier to the military and aerospace industries, Intersil’s product development methodologies reflect experience designing products to meet the highest standards for reliability and performance in challenging environments.

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