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W25D40 Schematic ( PDF Datasheet ) - Winbond

Teilenummer W25D40
Beschreibung SERIAL FLASH MEMORY
Hersteller Winbond
Logo Winbond Logo 




Gesamt 30 Seiten
W25D40 Datasheet, Funktion
W25D10, W25D20, W25D40, W25D80
1M-BIT, 2M-BIT, 4M-BIT AND 8M-BIT
SERIAL FLASH MEMORY WITH
4KB SECTORS AND DUAL OUTPUT SPI
Publication Release Date: July 15, 2006
- 1 - Preliminary - Revision A






W25D40 Datasheet, Funktion
W25D10, W25D20, W25D40, W25D80
6. PIN CONFIGURATION WSON 6X5-MM
Figure 1dW25D10, W25D20, W25D40 and W25D80 Pin Assignments, 8-pin WSON (Package Code ZP)
7. PIN DESCRIPTION
SOIC 150-mil, SOIC 208-mil, PDIP 300-mil, and WSON 6x5-mm
PAD NO.
1
2
3
4
5
6
7
8
PAD NAME
/CS
DO
/WP
GND
DIO
CLK
/HOLD
VCC
I/O FUNCTION
I Chip Select Input
O Data Output
I Write Protect Input
Ground
I/O Data Input / Output
I Serial Clock Input
I Hold Input
Power Supply
-6-

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W25D40 pdf, datenblatt
W25D10, W25D20, W25D40, W25D80
10.1.6 Status Register Protect (SRP)
The Status Register Protect (SRP) bit is a non-volatile read/write bit in status register (S7) that can be
used in conjunction with the Write Protect (/WP) pin to disable writes to status register. When the SRP
bit is set to a 0 state (factory default) the /WP pin has no control over status register. When the SRP
pin is set to a 1, the Write Status Register instruction is locked out while the /WP pin is low. When the
/WP pin is high the Write Status Register instruction is allowed.
Figure 3. Status Register Bit Locations
- 12 -

12 Page





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