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W45B012 Datasheet, PDF (1/16 Pages) Winbond – 1M x 1 SERIAL FLASH MEMORY
Preliminary W45B012
1M × 1 SERIAL FLASH MEMORY
GENERAL DESCRIPTION
The W45B012 is manufactured with Winbond’s high performance CMOS WinFlash technology. The
Serial Flash is organized as 32 sectors of 4096 Bytes for the W45B012. The memory is accessed for
Read or Erase/Program by the SPI bus compatible serial protocol. The bus signals are: serial data
input (SI), serial data output (SO), serial clock (SCK), write protect (#WP), chip enable (#CE), and
hardware reset (#RESET). This device is offered in 8L SON and 32L PLCC package.
FEATURES
• Single 2.7 − 3.6V Read and Write Operations
• Serial Interface Architecture
− SPI Compatible: Mode 0 and Mode 3
• Byte Serial Read with Single Command
• Superior Reliability
− Endurance: 10,000 Cycles (typ.)
− 20 years Data Retention
• Low Power Consumption
− Active Current: 30 mA (max)
− Standby Current: 15 µA (max)
• Sector or Chip-Erase Capability
− Uniform 4 KByte sectors
• Fast Erase and Byte-Program
− Chip-Erase Time: 100 mS (Max.)
− Sector-Erase Time: 25 mS (Max.)
− Byte-Program Time: 50 µS (Max.)
• Automatic Write Timing
− Internal VPP Generation
• End-of-Write Detection
− Software Status
• 20 MHz Max Clock Frequency
• Hardware Reset Pin (#RESET)
− Resets the device to Standby Mode
• TTL Compatibility
• Hardware Data Protection
− Protects/Unprotects the device from Write
operation
• Packages Available
− 8 SON (5 x 6 mm), 32L PLCC
Publication Release Date: April 18, 2002
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Revision A1