M95320 datasheet(6/44 Pages) STMICROELECTRONICS | 32 Kbit and 64 Kbit Serial SPI bus EEPROMs with high speed clock

6 page

Summary description

M95320, M95640, M95320-x, M95640-x

Summary description

These electrically erasable programmable memory (EEPROM) devices are accessed by a

high speed SPI-compatible bus.

The M95320, M95320-W and M95320-R are 32Kbit devices organized as 4096 x 8 bits. The

M95640, M95640-W and M95640-R are 64Kbit devices organized as 8192 x 8 bits.

The device is accessed by a simple serial interface that is SPI-compatible. The bus signals

are C, D and Q, as shown in Table 1 and Figure 1.

The device is selected when Chip Select (S) is taken Low. Communications with the device

can be interrupted using Hold (HOLD).

In order to meet environmental requirements, ST offers these devices in ECOPACK®

packages.

ECOPACK® packages are Lead-free and RoHS compliant.

ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.

Figure 1.

Logic diagram

Figure 2.

8 pin package connections

See Package mechanical section for package dimensions and how to identify pin-1.

AI01789C

VCC

M95xxx

HOLD

VSS

HOLD

SVCC

AI01790D

M95xxx

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