X28HC

Features:

* 70ns access time
* Simple byte and page write
   -Single 5V supply
   -No external high voltages or V_PP  control circuits
   -Self-timed
   -No erase before write
   -No complex programming algorithms
   -No overerase problem
* Low power CMOS
   -40mA active current max.
   -200A standby current max.
* Fast write cycle times
   -64-byte page write operation
   -Byte or page write cycle: 2ms typical
   -Complete memory rewrite: 0.25 sec. typical
   -Effective byte write cycle time: 32s typical
* Software data protection
* End of write detection
   -DATA polling
   -Toggle bit


Pinout




Specifications

Temperature under bias
   X28HC64 .....................................-10°C to +85°C
   X28HC64I, X28HC64M................-65°C to +135°C
Storage temperature....................-65°C to +150°C
Voltage on any pin with 
   respect to V ....................................... -1V_SS to +7V
D.C. output current...............................................5mA
Lead temperature
   (soldering, 10 seconds).................................300°C


Description

The X28HC64 is an 8K x 8 EEPROM, fabricated with Intersil's proprietary, high  performance, floating gate CMOS technology. Like all Intersil programmable nonvolatile memories, the X28HC64 is a 5V only device. It features the JEDEC approved pinto for byte-wide memories, compatible with industry standard RAMs.

The X28HC64 supports a 64-byte page write operation, effectively providing a 32s/byte write cycle, and enabling the entire memory to be typically written in 0.25 seconds. The X28HC64 also features DATA Polling and Toggle Bit Polling, two methods providing early end of write detection. In addition, the X28HC64 includes a user-optional software data protection mode that further enhances Intersil's hardware write protect capability.

Intersil EEPROMs are designed and tested for applications requiring extended endurance. Inherent data retention is greater than 100 years.