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

    – W25P10: 1M-bit/128K-byte (131,072) 

    – W25P20: 2M-bit/256K-byte (262,144) 

    – W25P40: 4M-bit/512K-byte (524,288) 

    – 256-bytes per programmable page

    – Migration path to 8M/16M/32M-bit

• 4-pin SPI Serial Interface

    – Clock, Chip Select, Data In, Data Out

    – Easily interfaces to popular microcontrollers 

    – Compatible with SPI Modes 0 and 3 

    – Bottom Boot organization (standard)

    – Optional Hold function for SPI flexibility

• Low Power Consumption, Wide Temperature Range

    – Single 2.7 to 3.6V supply

    – 4mA active current, 1µA Power-down (typ)

    – -40° to +85°C operating range

• Fast and Flexible Serial Data Access

    – 40MHz Fast Read, 33MHz Standard Read

    – Byte-addressable Read and Program

    – Auto-increment Read capability

    – Manufacturer and Device ID

• Programming Features 

    – Page program up to 256 bytes <2ms

    – Sector Erase (64K-byte) 2 seconds

    – Chip erase: 3 seconds (25P10/20), 5 seconds (25P40)

    – 100,000 erase/write cycles

    – Twenty-year data retention 

• Software and Hardware Write Protection 

    – Write-Protect all or portion of memory

    – Enable/Disable protection with /WP pin

• Space Saving Package

    – Tiny 8-pin SOIC 150mil

• Ideal for systems with limited pins, space, and power

    – Controller-based serial code-download 

    – µC systems storing data, text or voice

    – Battery-operated and portable products