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