NX25M640C データシートの表示（PDF） - NexFlash -> Winbond Electronics

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NX25M640C

8M-Byte REMOVABLE SERIAL FLASH MODULE

NexFlash -> Winbond Electronics 

NX25M640C

FEATURES

• Serial Flash Module (SFM)

- Removable package for Serial Flash Memories

- 8MB-byte capacity

- Ideal for small portable/mobile products that store

voice, images or data

- Enables unlimited storage, revision updates and

capacity upgrades

• Small Form Factor

- Relatively flat 15mm x 45mm (1.8”x 0.6”) form

factor. Less than 15% area of PCMCIA Card

• Ultra-low Power

- Single 3V supply for read, Erase/Write

- As low as 5 mA @3V, less than 1 µA standby

• Simple Interface

- Supports NX25Fxxx SPI (4-pin)

- Easily interfaced to Microcontrollers

- Smart card style self-cleaning connector, only

8-contact pads

- Device Information Sector allows identification of

capacity, voltage and other characteristics

- Optional electronic serial number

• Development Support

- PC-based Development Kit and Software

DESCRIPTION

1 The NX25M640C (8MB) Serial Flash Module (SFM)

provides the benefits of NexFlash’s Serial Flash Memories

in an innovative removable package. The NX25M640C

SFM is ideal for microcontroller-based applications, small

2 portable and mobile products, and other resource-limited

systems that store data, voice, and images. The SFM has

a space-efficient form factor of 15mm (0.6”) by 45mm (1.8”)

that is easy to handle and transport (see Figure 1). Simple

electrical contacts, similar to those used in smart cards,

3 provide for a reliable and cost-effective interface to a

surface-mount slide-in connector (commonly used in GSM

phones). Up to two Serial Flash Memories can be mounted

onto the module which is made of standard FR4 Epoxy

Glass PCB material.

4

The NX25M640C operates at a supply voltage of 3V.

Current consumption is as low as 5 mA active and 1 µA

5 standby making them highly suitable for battery operation.

Other features of the Serial Flash Module include on-chip

SRAM, electronic ID, flexible write protection and insertion/

removal detection. (Note: This document is supplementary

to the NX25F640C Serial Flash Memory data sheet.)

6

45mm

(1.80)

8MB SPI-3V

NX25M640C-3T

Serial

Flash

Module

Note: Inches are in parentheses

NXD010A-1298

15mm

(0.60)

Figure 1. Serial Flash Module

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NexFlash Technologies, Inc.

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PRELIMINARY NXSF033A-0502

05/30/02 ©

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