W25X32A Datasheet, PDF (2/45 Pages) Winbond – 32M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI

W25X32A
Table of Contents
1
GENERAL DESCRIPTION ............................................................................................................... 4
2
FEATURES....................................................................................................................................... 4
3
PIN CONFIGURATION SOIC 208-MIL ............................................................................................ 5
4
PAD CONFIGURATION WSON 6X5-MM & 8X6-MM ...................................................................... 5
5
PIN DESCRIPTION SOIC 208-MIL, WSON 6X5-MM, WSON 8X6-MM .......................................... 5
6
PIN CONFIGURATION SOIC 300-MIL ............................................................................................ 6
7
PIN DESCRIPTION SOIC 300-MIL .................................................................................................. 6
7.1 Package Types..................................................................................................................... 7
7.2 Chip Select (/CS).................................................................................................................. 7
7.3 Serial Data Output (DO) ....................................................................................................... 7
7.4 Write Protect (/WP)............................................................................................................... 7
7.5 HOLD (/HOLD) ..................................................................................................................... 7
7.6 Serial Clock (CLK) ................................................................................................................ 7
7.7 Serial Data Input / Output (DIO) ........................................................................................... 7
8
BLOCK DIAGRAM............................................................................................................................ 8
9
FUNCTIONAL DESCRIPTION ......................................................................................................... 9
9.1 SPI OPERATIONS ............................................................................................................... 9
9.1.1 SPI Modes..............................................................................................................................9
9.1.2 Dual Output SPI .....................................................................................................................9
9.1.3 Hold Function .........................................................................................................................9
9.2 WRITE PROTECTION ....................................................................................................... 10
9.2.1 Write Protect Features..........................................................................................................10
10 CONTROL AND STATUS REGISTERS ........................................................................................ 11
10.1
STATUS REGISTER .......................................................................................................... 11
10.1.1 BUSY..................................................................................................................................11
10.1.2 Write Enable Latch (WEL) ..................................................................................................11
10.1.3 Block Protect Bits (BP2, BP1, BP0)....................................................................................11
10.1.4 Top/Bottom Block Protect (TB)...........................................................................................11
10.1.5 Reserved Bits .....................................................................................................................11
10.1.6 Status Register Protect (SRP)............................................................................................12
10.1.7 Status Register Memory Protection ....................................................................................13
10.2
INSTRUCTIONS................................................................................................................. 14
10.2.1 Manufacturer and Device Identification ..............................................................................14
10.2.2 Instruction Set ....................................................................................................................15
10.2.3 Write Enable (06h)..............................................................................................................16
10.2.4 Write Disable (04h).............................................................................................................16
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