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LE25S20FD Datasheet, PDF (1/22 Pages) ON Semiconductor – Serial Flash Memory
LE25S20FD
Advance Information
CMOS LSI
2M-bit (256K x 8)
Serial Flash Memory
Overview
The LE25S20FD is a SPI bus flash memory device with a 2M bit (256K  8-
bit) configuration. It uses a single 1.8V power supply. While making the
most of the features inherent to a serial flash memory device, the
LE25S20FD is housed in an 8-pin ultra-miniature package. All these features
make this device ideally suited to storing program in applications such as
portable information devices, which are required to have increasingly more
compact dimensions. The LE25S20FD also has a small sector erase
capability which makes the device ideal for storing parameters or data that
have fewer rewrite cycles and conventional EEPROMs cannot handle due to
insufficient capacity.
Features
 Read/write operations enabled by single 1.8V power supply :
1.65 to 1.95V supply voltage range
 Operating frequency : 40MHz
 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
 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
: 300ms (typ), 3.0s (max)
Page program time : 3.0ms/256 bytes (typ), 3.5ms/256 bytes (max)
 Status functions
: Ready/busy information, protect information
 Data retention period : 20 years
 Package
: VSOIC8 NB
www.onsemi.com
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 22 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
1
October 2014 - Rev. P0
Publication Order Number :
LE25S20FD/D