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DESCRIPTION

The M28C64 devices consist of 8192x8 bits of low power, parallel EEPROM, fabricated with STMicroelectronics¡¯ proprietary single polysilicon CMOS technology. The devices offer fast access time, with low power dissipation, and require a single voltage supply (5V or 3V, depending on the option chosen).

The device has been designed to offer a flexible microcontroller interface, featuring both hardware and software handshaking, with Ready/Busy, Data Polling and Toggle Bit. The device supports a 64 byte Page Write operation. Software Data Protection (SDP) is also supported, using the standard JEDEC algorithm.

¡ö Fast Access Time:

¨C 90 ns at VCC=5 V forM28C64 and M28C64-A

¨C 120 ns at VCC=3 V for M28C64-xxW

¡ö Single Supply Voltage:

¨C 4.5 V to 5.5 V for M28C64 and M28C64-A

¨C 2.7 V to 3.6 V for M28C64-xxW

¡ö Low Power Consumption

¡ö Fast BYTE and PAGE WRITE (up to 64 Bytes)

¨C 1 ms at VCC=4.5 V for M28C64-A

¨C 3 ms at VCC=4.5 V for M28C64

¨C 5 ms at VCC=2.7 V for M28C64-xxW

¡ö Enhanced Write Detection and Monitoring:

¨C Ready/Busy Open Drain Output

¨C Data Polling

¨C Toggle Bit

¨C Page Load Timer Status

¡ö JEDEC Approved Bytewide Pin-Out

¡ö Software Data Protection

¡ö 100000 Erase/Write Cycles (minimum)

¡ö Data Retention (minimum):

¨C 40 Years for M28C64 and M28C64-xxW

¨C 10 Years for M28C64-A