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FM25C040 Datasheet(PDF) 5 Page - Fairchild Semiconductor

Part # FM25C040
Description  4K-Bit SPI??Interface Serial CMOS EEPROM
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FM25C040 Datasheet(HTML) 5 Page - Fairchild Semiconductor

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FM25C040U Rev. B
FIGURE 1. Synchronous Data Timing Diagram
tCSS
tCLH
tCLL
tCSH
tDF
tPD
tDIS
tDIH
tDH
tCSI
SCK
SI
SO
/CS
Valid Input
Valid Output
High Z
Mode 3
Mode 3
Mode 0
Mode 0
SCK
CS
SO
/HOLD
Output (n+1)
Output (n)
Output (n)
Output (n+2)
tHDS
tHZ
tLZ
tHDH
tHDS tHDH
tDIS
High Z
SI
Input (n+1)
Input (n)
Input (n)
Input (n+2)
Don't Care
Low state ( /CS = 0)
Don't Care
FIGURE 3. HOLD Timing
FIGURE 2. SPI Protocol
SCK
SI
SO
/CS
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Don't Care
High Z
Mode 3
Mode 3


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