M28C64 is a 64Kbit (8K x 8) parallel EEPROM with software data protection. Its features are fast access time, single supply voltage, low power consumption, fast byte and page write, enhanced write detection and monitoring, JEDEC approved bytewide pin-out, software data protection, 100000 erase/write cycles (minimum) and data retention (minimum): 40 years for M28C64 and M28C64-xxW, 10 years for M28C64-A.
This document is a datasheet for the STMicroelectronics M28C64, a 64 Kbit (8K x 8) parallel EEPROM device. It details the device's electrical characteristics, including operating modes, timing parameters, and absolute maximum ratings for both 5V and 3V supply voltage variants.
| Memory Capacity | 64 Kbit (8K x 8) |
|---|---|
| Access Time (5V) | 90 ns |
| Access Time (3V) | 120 ns |
| Supply Voltage (5V) | 4.5V to 5.5 V |
| Supply Voltage (3V) | 2.7 V to 3.6 V |
| Erase/Write Cycles | 100000 (minimum) |
| Data Retention (Standard) | 40 Years |
| Data Retention (M28C64-A) | 10 Years |
| Operating Temperature | -40 to 125 °C |
| Page Write Size | up to 64 Bytes |
The access time is 90 ns at Voc=5 V for M28C64 and M28C64-A.
The access time is 120 ns at Voc=3 V for M28C64-xxW.
The device supports a minimum of 100,000 erase/write cycles.
Yes, the device offers a software-controlled write-protection mechanism called Software Data Protection (SDP).