Document
W25X32BV
32M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI
The W25Q32BV is recommended for all new 32Mb designs. The W25X32BV is available for existing designs that require "25X" device ID for firmware compatibility.
Publication Release Date: October 7, 2009
- 1-
Preliminary -- Revision C
W25X32BV
Table of Contents
1.
GENERAL DESCRIPTION ......................................................................................................... 4
2.
FEATURES ................................................................................................................................. 4
3.
PIN CONFIGURATION SOIC 208-MIL....................................................................................... 5
4.
PAD CONFIGURATION WSON 6X5-MM / WSON 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 ..............................................................................12
10.2 INSTRUCTIONS........................................................................................................... 13
10.2.1 Manufacturer and Device Identification.........................................................................13
10.2.2 Instruction Set...............................................................................................................14
10.2.3 Write Enable (06h)........................................................................................................15
10.2.4 Write Disable (04h).......................................................................................................15
10.2.5 Read St.