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M95040 Datasheet(PDF) 6 Page - STMicroelectronics

Part No. M95040
Description  4 Kbit, 2 Kbit and 1 Kbit Serial SPI bus EEPROM with high speed Clock
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M95040 Datasheet(HTML) 6 Page - STMicroelectronics

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Summary description
M95040, M95020, M95010
6/42
1
Summary description
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
Figure 2.
8-pin package connections
1.
See Section 10: Package mechanical for package dimensions, and how to identify pin-1.
AI01789C
S
VCC
M95xxx
HOLD
VSS
W
Q
C
D
D
VSS
C
HOLD
Q
SVCC
W
AI01790D
M95xxx
1
2
3
4
8
7
6
5


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