[NexFlash]

GENERAL DESCRIPTION
The NX25P10 (1M-bit), NX25P20 (2M-bit) and NX25P40 (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 packages as shown below. Contact NexFlash for availability of alternate packages. As part of a family of Serial Flash products, NexFlash also provides a compatible migration path to 8M/ 16M/32M-bit densities.

FEATURES
• 1M / 2M / 4M-bit Serial Flash Memories
• Family of Serial Flash Memories
    – NX25P10: 1M-bit / 128K-byte (131,072 ) 512 pages
    – NX25P20: 2M-bit / 256K-byte (262,144 ) 1024 pages
    – NX25P40: 4M-bit / 512K-byte (524,288 ) 2048 pages
    – 256-bytes per programmable page
    – Compatible 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
    – 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
    – Clock operation to 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 via software
    – Enable/Disable protection with WP pin
• Space Saving Package
    – Tiny 8-pin SOIC
• Ideal for systems with limited pins, space, and power
    – ASIC and Controller-based serial code-download
    – Microcontroller systems storing data, text or voice
    – Battery-operated and portable products