M95040-RDW3T/G Просмотр технического описания (PDF) - STMicroelectronics

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M95040-RDW3T/G

4Kbit, 2Kbit and 1Kbit Serial SPI Bus EEPROM With High Speed Clock - Compatible with SPI Bus Serial Interface

STMicroelectronics 

Summary description

1

Summary description

M95040, M95020, M95010

The M95040 is a 4 Kbit (512 x 8) electrically erasable programmable memory (EEPROM),

accessed by a high speed SPI-compatible bus. The other members of the family (M95020

and M95010) are identical, though proportionally smaller (2 and 1 Kbit, respectively).

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

are C, D and Q, as shown in Table 2 and Figure 1.

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

can be interrupted using Hold (HOLD). WRITE instructions are disabled by Write Protect

(W).

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

VCC

D

C

S

W

HOLD

Q

M95xxx

VSS

AI01789C

Figure 2. 8-pin package connections

M95xxx

S1

Q2

8 VCC

7 HOLD

W3

6C

VSS 4

5D

AI01790D

1. See Section 10: Package mechanical for package dimensions, and how to identify pin-1.

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