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M95320 Datasheet(PDF) 6 Page - STMicroelectronics

Part No. M95320
Description  32 Kbit and 64 Kbit Serial SPI bus EEPROMs with high speed clock
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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Summary description
M95320, M95640, M95320-x, M95640-x
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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 Table 1 and Figure 1.
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 ECOPACKĀ®
packages.
ECOPACKĀ® 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 Package mechanical section 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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