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M95040 Datasheet(PDF) 5 Page - STMicroelectronics

Part No. M95040
Description  4Kbit, 2Kbit and 1Kbit Serial SPI Bus EEPROM With High Speed Clock
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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M95040 Datasheet(HTML) 5 Page - STMicroelectronics

 
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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 and M95010) are
identical, though proportionally smaller (2 and 1
Kbit, respectively).
Each device is accessed by a simple serial inter-
face that is SPI-compatible. The bus signals are C,
D and Q, as shown in Table 2. 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, SO and TSSOP Connections
Note: See PACKAGE MECHANICAL section for package dimen-
sions, and how to identify pin-1.
Table 2. Signal Names
AI01789C
S
VCC
M95xxx
HOLD
VSS
W
Q
C
D
C
Serial Clock
D
Serial Data Input
Q
Serial Data Output
S
Chip Select
W
Write Protect
HOLD
Hold
VCC
Supply Voltage
VSS
Ground
D
VSS
C
HOLD
Q
SVCC
W
AI01790D
M95xxx
1
2
3
4
8
7
6
5


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