M95040-SBN3T Просмотр технического описания (PDF) - STMicroelectronics

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M95040-SBN3T

4Kbit, 2Kbit and 1Kbit Serial SPI Bus EEPROM With High Speed Clock

STMicroelectronics 

M95040, M95020, M95010

SUMMARY DESCRIPTION

The M95040 is a 4 Kbit (512 x 8) electrically eras-

able programmable memory (EEPROM), access-

ed by a high speed SPI-compatible bus. The other

members of the family (M95020, 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 1 and Figure 2.

The device is selected when Chip Select (S) is tak-

en Low. Communications with the device can be

interrupted using Hold (HOLD). WRITE instruc-

tions are disabled by Write Protect (W).

Figure 2. Logic Diagram

VCC

Figure 3. DIP, SO and TSSOP Connections

M95xxx

S1

Q2

8 VCC

7 HOLD

W3

6C

VSS 4

5D

AI01790D

Note: 1. See page 28 (onwards) for package dimensions, and how

to identify pin-1.

D

C

S

W

HOLD

M95xxx

VSS

Q

AI01789C

Table 1. Signal Names

C

Serial Clock

D

Serial Data Input

Q

Serial Data Output

S

Chip Select

W

Write Protect

HOLD

Hold

VCC

Supply Voltage

VSS

Ground

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