M95010 查看數據表（PDF） - STMicroelectronics

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M95010

4/2/1 Kbit 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

Figure 3. DIP Connections

M95xxx

S1

Q2

8 VCC

7 HOLD

W3

6C

VSS 4

5D

AI01790C

VCC

Figure 4. SO and TSSOP Connections

D

C

S

W

HOLD

Q

M95xxx

S

Q

W

VSS

M95xxx

1

8

2

7

3

6

4

5

AI01791C

VCC

HOLD

C

D

VSS

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

2/32

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