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LE25U20AFD Datasheet, PDF (1/21 Pages) ON Semiconductor – Serial Flash Memory
LE25U20AFD
Advance Information
CMOS IC
2M-bit (256K x 8)
Serial Flash Memory
www.onsemi.com
Overview
The LE25U20AFD is a serial interface-compatible flash memory device
with a 256K  8-bit configuration. It uses a single 2.5V power supply.
While making the most of the features inherent to a serial flash memory
device, the LE25U20AFD is housed in an 8-pin ultra-miniature package.
These features make this device ideally suited to storing program codes in
applications such as portable information devices, which are required to
have increasingly more compact dimensions. Moreover, by using the small
sector erase function this product is also suitable for the parameter or the
date storage usage with comparatively little rewriting times that becomes a
capacity shortage in EEPROM.
VSOIC8 NB
Features
 Read / write operations enabled by single 2.5V power supply: 2.30 to 3.60V supply voltage range
 Operating frequency : 30MHz
 Temperature range
: 40 to 85C
 Serial interface
: SPI mode 0, mode 3 supported
 Sector size
: 4K bytes/small sector, 64K bytes/sector
 Small sector erase, sector erase, chip erase functions
 Page program function (256 bytes / page)
 Block protect function
 Status functions
: Ready/busy information, protect information
 Highly reliable read/write
Number of rewrite times : 100,000 times
Small sector erase time : 40ms (typ.), 150ms (max.)
Sector erase time
: 80ms (typ.), 250ms (max.)
Chip erase time
: 250ms (typ.), 1.6s (max.)
Page program time : 4.0ms/256 bytes (typ.), 5.0ms/256 bytes (max.)
 Data retention period : 20 years
 Package
: VSOIC8 NB
* This product is licensed from Silicon Storage Technology, Inc. (USA).
This document contains information on a new product. Specifications and information
herein are subject to change without notice.
ORDERING INFORMATION
See detailed ordering and shipping information on page 21 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
1
October 2014 - Rev. P0
Publication Order Number :
LE25U20AFD/D