w25x32a Winbond Electronics Corp America, w25x32a Datasheet - Page 2

• Manufacturer Part Number: w25x32a
• Description: 32m-bit Serial Flash Memory With 4kb Sectors And Dual Output Spi
• Manufacturer: Winbond Electronics Corp America

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GENERAL DESCRIPTION ............................................................................................................... 4
FEATURES....................................................................................................................................... 4
PIN CONFIGURATION SOIC 208-MIL ............................................................................................ 5
PAD CONFIGURATION WSON 6X5-MM ........................................................................................ 5
PIN CONFIGURATION PDIP 300-MIL............................................................................................. 5
PIN DESCRIPTION SOIC 208-MIL, PDIP 300-MIL, WSON 6X5-MM ............................................. 6
PIN CONFIGURATION SOIC 300-MIL ............................................................................................ 6
PIN DESCRIPTION SOIC 300-MIL .................................................................................................. 7
8.1
8.2
8.3
8.4
8.5
8.6
8.7
BLOCK DIAGRAM............................................................................................................................ 9
FUNCTIONAL DESCRIPTION ....................................................................................................... 10
10.1
10.2
CONTROL AND STATUS REGISTERS ........................................................................................ 12
11.1
11.2
Package Types..................................................................................................................... 8
Chip Select (/CS).................................................................................................................. 8
Serial Data Output (DO) ....................................................................................................... 8
Write Protect (/WP)............................................................................................................... 8
HOLD (/HOLD) ..................................................................................................................... 8
Serial Clock (CLK) ................................................................................................................ 8
Serial Data Input / Output (DIO) ........................................................................................... 8
SPI OPERATIONS ............................................................................................................. 10
10.1.1
10.1.2
10.1.3
WRITE PROTECTION ....................................................................................................... 11
10.2.1
STATUS REGISTER .......................................................................................................... 12
11.1.1
11.1.2
11.1.3
11.1.4
11.1.5
11.1.6
11.1.7
INSTRUCTIONS................................................................................................................. 15
11.2.1
11.2.2
11.2.3
SPI Modes..........................................................................................................................10
Dual Output SPI .................................................................................................................10
Hold Function .....................................................................................................................10
Write Protect Features........................................................................................................11
BUSY..................................................................................................................................12
Write Enable Latch (WEL) ..................................................................................................12
Block Protect Bits (BP2, BP1, BP0)....................................................................................12
Top/Bottom Block Protect (TB)...........................................................................................12
Reserved Bits .....................................................................................................................12
Status Register Protect (SRP)............................................................................................13
Status Register Memory Protection ....................................................................................14
Manufacturer and Device Identification ..............................................................................15
Instruction Set ....................................................................................................................16
Write Enable (06h)..............................................................................................................17
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W25X32A