GENERAL DESCRIPTION
The W25P10 (1M-bit), W25P20 (2M-bit) and W25P40 (4M-bit) Serial Flash memories provide a storage solution for systems with limited space, pins and power. They are ideal for code download applications as well as storing voice, text and data. The devices operate on a single 2.7V to 3.6V power supply with current consumption as low as 4mA active and 1µA for power-down. All devices are offered in space-saving 8-pin SOIC type packagesas shown below. Contact Winbond for availability of alternate packages. As part of a family ofSerial Flash products, Winbond also provides a compatible migration path to8M/16M/32M-bit densities.
FEATURES
⢠1M / 2M / 4M-bit Serial Flash Memories
⢠Family of Serial Flash Memories
â W25P10: 1M-bit/128K-byte (131,072)
â W25P20: 2M-bit/256K-byte (262,144)
â W25P40: 4M-bit/512K-byte (524,288)
â 256-bytes per programmable page
â Migration path to 8M/16M/32M-bit
⢠4-pin SPI Serial Interface
â Clock, Chip Select, Data In, Data Out
â Easily interfaces to popular microcontrollers
â Compatible with SPI Modes 0 and 3
â Bottom Boot organization (standard)
â Optional Hold function for SPI flexibility
⢠Low Power Consumption, Wide Temperature Range
â Single 2.7 to 3.6V supply
â 4mA active current, 1µA Power-down (typ)
â -40° to +85°C operating range
⢠Fast and Flexible Serial Data Access
â 40MHz Fast Read, 33MHz Standard Read
â Byte-addressable Read and Program
â Auto-increment Read capability
â Manufacturer and Device ID
⢠Programming Features
â Page program up to 256 bytes <2ms
â Sector Erase (64K-byte) 2 seconds
â Chip erase: 3 seconds (25P10/20), 5 seconds (25P40)
â 100,000 erase/write cycles
â Twenty-year data retention
⢠Software and Hardware Write Protection
â Write-Protect all or portion of memory
â Enable/Disable protection with /WP pin
⢠Space Saving Package
â Tiny 8-pin SOIC 150mil
⢠Ideal for systems with limited pins, space, and power
â Controller-based serial code-download
â µC systems storing data, text or voice
â Battery-operated and portable products
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