m95320 STMicroelectronics, m95320 Datasheet - Page 6

• Manufacturer Part Number: m95320
• Description: 32 Kbit And 64 Kbit Serial Spi Bus Eeproms With High Speed Clock
• Manufacturer: STMicroelectronics

Description
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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 32 Kbit devices organized as 4096 x 8 bits.
The M95640, M95640-W and M95640-R are 64 Kbit 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
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.
Figure 2.
1. See
Package mechanical
Logic diagram
8 pin package connections
section for package dimensions and how to identify pin-1.
HOLD
Table 1
W
D
C
S
V SS
and
W
Q
S
V CC
V SS
Figure
1
2
3
4
M95xxx
M95xxx
AI01790D
1.
8
7
6
5
M95320, M95640, M95320-x, M95640-x
V CC
HOLD
C
D
Q
AI01789C