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X28HC256PZ-12 Datasheet(PDF) 1 Page - Intersil Corporation |
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X28HC256PZ-12 Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 19 page 1 DATASHEET 256k, 32k x 8-Bit, 5V, Byte Alterable EEPROM X28HC256 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. The X28HC256 supports a 128-byte page write operation, effectively providing a 24µs/byte write cycle, and enabling the entire memory to be typically rewritten in less than 0.8s. The X28HC256 also features DATA polling and Toggle bit polling, two methods of providing early end of write detection. The X28HC256 also supports the JEDEC standard software data protection feature for protecting against inadvertent writes during power-up and power-down. Endurance for the X28HC256 is specified as a minimum 100,000 write cycles per byte and an inherent data retention of 100 years. Features • Access time: 90ns • 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: 100,000 cycles - Data retention: 100 years • Early end of write detection -DATA polling - Toggle bit polling • RoHS compliant X BUFFERS LATCHES AND DECODER I/O BUFFERS AND LATCHES Y BUFFERS LATCHES AND DECODER CONTROL LOGIC AND TIMING 256k BIT EEPROM ARRAY I/O0 TO I/O7 DATA INPUTS/OUTPUTS CE OE VCC VSS A0 TO A14 WE ADDRESS INPUTS FIGURE 1. BLOCK DIAGRAM CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2005-2007, 2010, 2011, 2015. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. August 27, 2015 FN8108.5 |
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