Summary description
M95320, M95640, M95320-x, M95640-x
1
Summary description
These electrically erasable programmable memory (EEPROM) devices are accessed by a
high speed SPI-compatible bus.
The M95320, M95320-W and M95320-R are 32Kbit devices organized as 4096 x 8 bits. The
M95640, M95640-W and M95640-R are 64Kbit devices organized as 8192 x 8 bits.
The 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).
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
section for package dimensions and how to identify pin-1.
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