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25X20BV Dataheets PDF



Part Number 25X20BV
Manufacturers Winbond
Logo Winbond
Description Serial Flash Memory
Datasheet 25X20BV Datasheet25X20BV Datasheet (PDF)

W25X10BV/20BV/40BV 1M-BIT, 2M-BIT AND 4M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL I/O SPI Publication Release Date: August 20,, 2009 - 1- Preliminary -- Revision B W25X10BV/20BV/40BV Table of Contents 1. GENERAL DESCRIPTION 4 2. FEATURES .... 4 3. P.

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W25X10BV/20BV/40BV 1M-BIT, 2M-BIT AND 4M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL I/O SPI Publication Release Date: August 20,, 2009 - 1- Preliminary -- Revision B W25X10BV/20BV/40BV Table of Contents 1. GENERAL DESCRIPTION ......................................................................................................... 4 2. FEATURES ................................................................................................................................. 4 3. PIN CONFIGURATION SOIC 150-MIL / 208-MIL ...................................................................... 5 4. PAD CONFIGURATION WSON 6X5-MM .................................................................................. 5 5. PIN CONFIGURATION PDIP 300-MIL ....................................................................................... 6 6. PIN DESCRIPTION SOIC 150 / 208-MIL, PDIP 300-MIL, WSON 6X5-MM............................... 6 6.1 Package Types ............................................................................................................... 7 6.2 Chip Select (/CS) ............................................................................................................ 7 6.3 Serial Data Input, Output and IOs (DI, DO, IO0 and IO1) .............................................. 7 6.4 Write Protect (/WP)......................................................................................................... 7 6.5 HOLD (/HOLD) ............................................................................................................... 7 6.6 Serial Clock (CLK) .......................................................................................................... 7 7. BLOCK DIAGRAM ...................................................................................................................... 8 8. FUNCTIONAL DESCRIPTION ................................................................................................... 9 8.1 SPI OPERATIONS ......................................................................................................... 9 8.1.1 Standard SPI Instructions.................................................................................................9 8.1.2 Dual SPI Instructions ........................................................................................................9 8.1.3 Hold Function ...................................................................................................................9 8.2 WRITE PROTECTION.................................................................................................. 10 8.2.1 Write Protect Features....................................................................................................10 9. CONTROL AND STATUS REGISTERS................................................................................... 11 9.1 STATUS REGISTER .................................................................................................... 11 9.1.1 BUSY..............................................................................................................................11 9.1.2 Write Enable Latch (WEL) ..............................................................................................11 9.1.3 Block Protect Bits (BP2, BP1, BP0)................................................................................11 9.1.4 Top/Bottom Block Protect (TB).......................................................................................11 9.1.5 Reserved Bits .................................................................................................................11 9.1.6 Status Register Protect (SRP)........................................................................................12 9.1.7 Status Register Memory Protection ................................................................................13 9.2 INSTRUCTIONS........................................................................................................... 14 9.2.1 Manufacturer and Device Identification ..........................................................................14 9.2.2 Instruction Set ................................................................................................................15 9.2.3 Write Enable (06h)..........................................................................................................16 9.2.4 Write Disable (04h).........................................................................................................16 9.2.5 Read Status Register (05h) ............................................................................................17 9.2.6 Write Status Register (01h) ............................................................................................18 9.2.7 Read Data (03h) .............................................................................................................19 9.2.8 .


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