w25x40av Winbond Electronics Corp America, w25x40av Datasheet - Page 2

• Manufacturer Part Number: w25x40av
• Description: 1m-bit, 2m-bit, 4m-bit And 8m-bit Serial Flash Memory With 4kb Sectors And Dual Output Spi
• Manufacturer: Winbond Electronics Corp America

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9.
10.
GENERAL DESCRIPTION ......................................................................................................... 4
FEATURES ................................................................................................................................. 4
PIN CONFIGURATION SOIC 150-MIL....................................................................................... 5
PIN CONFIGURATION SOIC 208-MIL....................................................................................... 5
PIN CONFIGURATION PDIP 300-MIL ....................................................................................... 5
PAD CONFIGURATION WSON 6X5-MM .................................................................................. 6
PIN DESCRIPTION..................................................................................................................... 6
7.1
7.2
7.3
7.4
7.5
7.6
7.7
BLOCK DIAGRAM ...................................................................................................................... 8
FUNCTIONAL DESCRIPTION ................................................................................................... 9
9.1
9.2
CONTROL AND STATUS REGISTERS................................................................................... 11
10.1
10.2
Package Types ............................................................................................................... 7
Chip Select (/CS) ............................................................................................................ 7
Serial Data Output (DO) ................................................................................................. 7
Write Protect (/WP)......................................................................................................... 7
HOLD (/HOLD) ............................................................................................................... 7
Serial Clock (CLK) .......................................................................................................... 7
Serial Data Input / Output (DIO) ..................................................................................... 7
SPI OPERATIONS ......................................................................................................... 9
9.1.1
9.1.2
9.1.3
WRITE PROTECTION.................................................................................................. 10
9.2.1
STATUS REGISTER .................................................................................................... 11
10.1.1
10.1.2
10.1.3
10.1.4
10.1.5
10.1.6
10.1.7
INSTRUCTIONS........................................................................................................... 14
10.2.1
10.2.2
10.2.3
10.2.4
10.2.5
SPI Modes........................................................................................................................9
Dual Output SPI................................................................................................................9
Hold Function ...................................................................................................................9
Write Protect Features....................................................................................................10
BUSY............................................................................................................................11
Write Enable Latch (WEL) ............................................................................................11
Block Protect Bits (BP2, BP1, BP0)..............................................................................11
Top/Bottom Block Protect (TB).....................................................................................11
Reserved Bits ...............................................................................................................11
Status Register Protect (SRP) ......................................................................................12
Status Register Memory Protection ..............................................................................13
Manufacturer and Device Identification.........................................................................14
Instruction Set...............................................................................................................15
Write Enable (06h)........................................................................................................16
Write Disable (04h).......................................................................................................16
Read Status Register (05h) ..........................................................................................17
W25X10A, W25X20A, W25X40A, W25X80A
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