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25Q20BWNIG Dataheets PDF



Part Number 25Q20BWNIG
Manufacturers Winbond
Logo Winbond
Description 1.8V 2M-BIT SERIAL FLASH MEMORY
Datasheet 25Q20BWNIG Datasheet25Q20BWNIG Datasheet (PDF)

W25Q20BW 1.8V 2M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI www.DataSheet.net/ -1- Publication Release Date: January 25, 2011 Preliminary - Revision B Datasheet pdf - http://www.DataSheet4U.co.kr/ W25Q20BW Table of Contents 1. GENERAL DESCRIPTION . 5 2. FEATURES...

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W25Q20BW 1.8V 2M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI www.DataSheet.net/ -1- Publication Release Date: January 25, 2011 Preliminary - Revision B Datasheet pdf - http://www.DataSheet4U.co.kr/ W25Q20BW Table of Contents 1. GENERAL DESCRIPTION ............................................................................................................... 5 2. FEATURES....................................................................................................................................... 5 3. PIN CONFIGURATION SOIC 150-MIL ............................................................................................ 6 4. PAD CONFIGURATION WSON 6X5-MM, USON 2X3-MM ............................................................. 6 5. PIN DESCRIPTION SOIC 150-MIL, WSON 6X5-MM & USON 2X3-MM ........................................ 6 5.1 Package Types..................................................................................................................... 7 5.2 Chip Select (/CS).................................................................................................................. 7 5.3 Serial Data Input, Output and IOs (DI, DO and IO0, IO1, IO2, IO3) .................................... 7 5.4 Write Protect (/WP)............................................................................................................... 7 5.5 HOLD (/HOLD) ..................................................................................................................... 7 5.6 Serial Clock (CLK) ................................................................................................................ 7 6. BLOCK DIAGRAM............................................................................................................................ 8 7. FUNCTIONAL DESCRIPTION ......................................................................................................... 9 7.1 SPI OPERATIONS ............................................................................................................... 9 7.1.1 Standard SPI Instructions.......................................................................................................9 7.1.2 Dual SPI Instructions ..............................................................................................................9 www.DataSheet.net/ 7.1.3 Quad SPI Instructions.............................................................................................................9 7.1.4 Hold Function .........................................................................................................................9 7.2 WRITE PROTECTION ....................................................................................................... 10 7.2.1 Write Protect Features..........................................................................................................10 8. CONTROL AND STATUS REGISTERS ........................................................................................ 11 8.1 STATUS REGISTER .......................................................................................................... 11 8.1.1 BUSY....................................................................................................................................11 8.1.2 Write Enable Latch (WEL) ....................................................................................................11 8.1.3 Block Protect Bits (BP2, BP1, BP0)......................................................................................11 8.1.4 Top/Bottom Block Protect (TB).............................................................................................11 8.1.5 Sector/Block Protect (SEC) ..................................................................................................11 8.1.6 Complement Protect (CMP) .................................................................................................12 8.1.7 Status Register Protect (SRP1, SRP0).................................................................................12 8.1.8 Erase/Program Suspend Status (SUS) ................................................................................12 8.1.9 Security Register Lock Bits (LB3, LB2, LB1, LB0) ................................................................12 8.1.10 Quad Enable (QE) ..............................................................................................................13 8.1.11 Status Register Memory Protection (CMP = 0)...................................................................14 8.1.12 Status Register Memory Protection (CMP = 1)...................................................................15 8.2 INSTRUCTIONS................................................................................................................. 16 8.2.1 Manufacturer and Device Identification ................................................................................16 8.2.2.


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