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NexFlash Technologies, Inc.
1
PRELIMINARY NXSF009A-0599
05/05/99 ©
NX26F011A
NX26F041A
NX26F011A
NX26F041A
1M-BIT AND 4M-BIT SERIAL FLASH MEMORY
WITH 2-PIN NXS INTERFACE
FEATURES
• Tailored for Portable and Mobile Media-Storage
– Ideal for portable/mobile applications that transfer
and store data, audio, or images
– Removable Serial Flash Module package option
•
NexFlash ™ Non-volatile Memory Technology
– Patented Single-Transistor EEPROM Cell
– High-density, cost-effective, low-voltage/power
– 10K/100K endurance, ten years data retention
• Flash Memory for Battery-Operation
– Single 5V or 3V supply for Read, Erase/Write
– Icc 5 mA active with 1
µA standby power
– 5 ms Erase/Write times for efficient battery use
• 1M-bits or 4M-bits of
NexFlash Serial Memory
– 512 or 2,048 sectors of 264 bytes each
– Simple commands: Reset, Read, Write,
Ready/Busy
– No pre-erase required, auto-erases before write
• Two-pin NXS Serial Interface
– Saves Microcontroller-pins, simplifies PCB layout,
low switching noise compared to parallel Flash
– Supports clock operation as fast as 16 MHz
– Multi-device cascading, up to 16 devices
• Development Tools and Accessories
– SFK-NXS Serial Flash Development Kit
Description
The
NexFlash™ NX26F011A and NX26F041A Serial Flash
Memories are tailored for portable/mobile media-storage
applications that transfer and store data, audio and images.
Manufactured using
NexFlash’s patented single transistor
EEPROM memory cell, the NX26F011A and NX26F041A
provide a high-density, low-voltage, low-power, and cost
effective solution for battery-operated nonvolatile data
storage requirements. The NX26F011A and NX26F041A
can operate with a single 5V or 3V supply for Read, Write,
and Erase. Power consumption is very low due to
µA
standby current and fast Erase/Write performance (as fast
as 5 ms per sector) that minimizes power-on time, resulting
inahighlyefficientenergy-per-transferratio.TheNX26F011A
PRE-RELEASE
MAY 1999
and NX26F041A offer 1M-bits and 4M-bits of Flash memory
organized in sectors of 264 bytes each. Each sector is
individually addressable through basic commands or
control functions such as Reset, Read, Erase/Write, and
Ready/Busy. The NXS (
NexFlash Serial) 2-wire serial
interface is ideal for use with microcontrollers since it only
requires two pins. This leaves pins normally used for parallel
Flash free for other uses. The NXS interface supports clock
rates as fast as 16 MHz and allows for multi-device cascading
of up to 16 devices. It also simplifies PC-board layout and
generates less transient noise than parallel devices. Devel-
opment is supported with the NexFlash Serial Flash
Development Kit.
This document contains PRELIMINARY INFORMATION. NexFlash reserves the right to make changes to its product at any time without notice in order to improve design and supply the
best possible product. We assume no responsibility for any errors which may appear in this publication.
Copyright 1998, NexFlash Technologies, Inc.
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