M95M01-R datasheet(6/39 Pages) STMICROELECTRONICS

6 / 39 page

Description

M95M01-R

6/39

Description

The M95M01-R is an electrically erasable programmable memory (EEPROM) device. It is

accessed by a high speed SPI-compatible bus. The memory array is organized as 131 072

× 8 bit. It can also be seen as 512 pages of 256 bytes each.

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 the M95M01-R 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

Table 1.

Signal names

Signal name

Function

Direction

Serial Clock

Input

Serial Data Input

Input

Serial Data Output

Output

Chip Select

Input

Write Protect

Input

HOLD

Hold

Input

VCC

Supply voltage

VSS

Ground

AI01789C

VCC

M95xxx

HOLD

VSS

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