Document
W25X10A, W25X20A, W25X40A, W25X80A
1M-BIT, 2M-BIT, 4M-BIT AND 8M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI
Publication Release Date: August 7, 2009
-1-
Revision F
W25X10A, W25X20A, W25X40A, W25X80A
Table of Contents
1.
GENERAL DESCRIPTION ......................................................................................................... 4
2.
FEATURES ................................................................................................................................. 4
3.
PIN CONFIGURATION SOIC 150-MIL....................................................................................... 5
4.
PIN CONFIGURATION SOIC 208-MIL....................................................................................... 5
5.
PIN CONFIGURATION PDIP 300-MIL ....................................................................................... 5
6.
PAD CONFIGURATION WSON 6X5-MM .................................................................................. 6
7.
PIN DESCRIPTION..................................................................................................................... 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................................................................................................