This document introduces the M95320 and M95640 series 32Kbit and 64Kbit serial SPI bus EEPROMs with high-speed clock, released in May 2005. They are compatible with the SPI bus serial interface and support different clock rates and write times. The EEPROMs feature a status register, hardware protection, self-timed programming cycle, adjustable size read-only EEPROM area, enhanced ESD protection, and long data retention capability.
The document describes electrically erasable programmable memory devices accessed via a high-speed SPI-compatible bus. Available in 32Kbit (M95320 series) and 64Kbit (M95640 series) capacities, these chips support multiple supply voltages ranging from 1.65V to 5.5V depending on the specific model suffix.
Key features include compatibility with SPI Bus Serial Interface modes, adjustable read-only EEPROM areas, hardware protection for the status register, and enhanced ESD protection. The devices offer erase/write cycle endurance of over 100,000 or 1 million cycles and data retention exceeding 40 years.
| Capacity (M95320) | 32Kbit organized as 4096 x 8 bits |
|---|---|
| Capacity (M95640) | 64Kbit organized as 8192 x 8 bits |
| Clock Rate | 20MHz, 10MHz, 5MHz or 2MHz |
| Write Time | 5ms or 10ms |
| Data Retention | More than 40-Year |
| Erase/Write Cycles | More than 100000 or 1 million |
The devices support clock rates of 20MHz, 10MHz, 5MHz, or 2MHz.
The write time is either 5ms or 10ms depending on the specific configuration.
Data retention is guaranteed for more than 40 years.