M95128 Datasheet 256/128 Kbit Serial Spi Bus Eeprom With High Speed Clock

Manufacturer: STMicroelectronics

Overview: M95256 M95128 256/128 Kbit Serial SPI Bus EEPROM With High Speed Clock PRELIMINARY DATA s s s s SPI Bus Compatible Serial Interface Supports Positive Clock SPI Modes 5 MHz Clock Rate (maximum) Single Supply Voltage: – 4.5V to 5.5V for M95xxx – 2.7V to 3.6V for M95xxx-V – 2.5V to 5.5V for M95xxx-W – 1.8V to 3.6V for M95xxx-R 8 1 PSDIP8 (BN) 0.

Datasheet Details

Part number	M95128
Manufacturer	STMicroelectronics
File Size	174.59 KB
Description	256/128 Kbit Serial SPI Bus EEPROM With High Speed Clock
Datasheet	M95128_STMicroelectronics.pdf

General Description

These SPI-compatible electrically erasable programmable memory (EEPROM) devices are organized as 32K x 8 bits (M95256) and 16K x 8 bits (M95128), and operate down to 2.7 V (for the Figure 1.

Logic Diagram VCC Table 1.

Signal Names C D Q Serial Clock Serial Data Input Serial Data Output D C S W M95xxx Q S W HOLD VCC VSS Chip Select HOLD Write Protect Hold Supply Voltage Ground VSS AI01789C March 2000 This is preliminary information on a new product now in development or undergoing evaluation.

Key Features

of the memory device are summarized in Table 3. The hardware write protection, controlled by the W pin, restricts write access to the Status Register (though not to the WIP and WEL bits, which are set or reset by the device internal logic). Bit 7 of the status register (as shown in Table 5) is the Status Register Write Disable bit (SRWD). When this is set to 0 (its initial delivery state) it is possible to write to the status register if the WEL bit (Write Enable Latch) has been set by the WREN.

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Similar Datasheet

Part Number	Description	Manufacturer
M95128-DF	128-Kbit serial SPI bus EEPROM	STMicroelectronics
M95128-DRE	128-Kbit serial SPI bus EEPROM	STMicroelectronics
M95128-R	128-Kbit serial SPI bus EEPROM	STMicroelectronics
M95128-W	128-Kbit serial SPI bus EEPROM	STMicroelectronics

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