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M95256-R Fiches technique(PDF) 6 Page - STMicroelectronics

No de pièce M95256-R
Description  256 Kbit serial SPI bus EEPROM with high-speed clock
PDF  43 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M95256-R Fiches technique(HTML) 6 Page - STMicroelectronics

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Description
M95256, M95256-W, M95256-R
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1
Description
The M95256, M95256-W and M95256-R are electrically erasable programmable memory
(EEPROM) devices. They are accessed by a high speed SPI-compatible bus. Their memory
array is organized as 32768 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).
Figure 1.
Logic diagram
Figure 2.
SO and TSSOP connections
1.
See Section 10: Package mechanical data for package dimensions, and how to identify pin-1.
AI12361
S
VCC
M95256
HOLD
VSS
W
Q
C
D
D
VSS
C
HOLD
Q
SVCC
W
AI12362
M95256
1
2
3
4
8
7
6
5



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