M95640-WMN6T STMicroelectronics, M95640-WMN6T Datasheet - Page 6

• Manufacturer Part Number: M95640-WMN6T
• Description: IC EEPROM 64KBIT 10MHZ 8SOIC
• Manufacturer: STMicroelectronics

Specifications of M95640-WMN6T

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 64K (8K x 8)
• Speed: 10MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-1947-2

Description
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Description
The M95640, M95640-W and M95640-R are electrically erasable programmable memory
(EEPROM) devices. They are accessed by a high-speed SPI-compatible bus. The devices
are 64 Kbit devices organized as 8192 × 8 bits.
The M95640-D also offers an additional page, named the Identification Page (32 bytes)
which can be written and (later) permanently locked in Read-only mode. This Identification
Page offers flexibility in the application board production line, as it can be used to store
unique identification parameters and/or parameters specific to the production line.
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).
Figure 1.
Figure 2.
1. See
Package mechanical data
Logic diagram
8-pin package connections
HOLD
section for package dimensions and how to identify pin-1.
Table 1
Doc ID 16877 Rev 15
W
D
C
S
V SS
and
W
Q
S
V CC
V SS
Figure
1
2
3
4
M95xxx
M95xxx
AI01790D
M95640, M95640-W, M95640-R, M95640-DR
1.
8
7
6
5
V CC
HOLD
C
D
Q
AI01789C