M95040, M95020, M95010 4Kbit, 2Kbit and 1Kbit Serial SPI Bus EEPROM With High Speed Clock。This series of products have compatible SPI bus serial interface, single power supply, high clock rate, status register, byte and page write, self-timed programming cycle, adjustable size read-only EEPROM area, enhanced ESD protection, more than 1 million erase/write cycles and more than 40 years of data retention.
The M95040 family consists of 4 Kbit, 2 Kbit, and 1 Kbit electrically erasable programmable memory devices accessed via a high‑speed SPI‑compatible bus. All devices share the same serial interface (C, D, Q) and support standard SPI modes with a 10 MHz clock rate and 5 ms write time.
The handbook includes a features summary, package information, pin‑out diagrams, signal descriptions, timing diagrams, electrical characteristics, and absolute maximum ratings. It also lists ordering information, revision history, and compliance notes for the three EEPROM variants.
| Supply Voltage (M950x0) | 4.5 V to 5.5 V |
|---|---|
| Supply Voltage (M950x0‑W) | 2.5 V to 5.5 V |
| Supply Voltage (M950x0‑R) | 1.8 V to 5.5 V |
| Maximum Clock Rate | 10 MHz |
| Write Time | 5 ms |
| Erase/Write Cycles | > 1 Million |
| Data Retention | > 40 Years |
The M95040 requires a supply voltage between 4.5 V and 5.5 V.
The devices support CPOL=0 & CPHA=0 and CPOL=1 & CPHA=1 modes.
HOLD pauses serial communication without deselecting the device; during HOLD, Q is high‑impedance and D and C are don’t‑care.
The write time is up to 5 ms.