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LE25S40MB-AH

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
© Semiconductor Components Industries, LLC, 2017 1 Publication Order Number :
February 2017 - Rev. 1 LE25S40MB/D
www.onsemi.com
ORDERING INFORMATION
See detailed ordering and shipping information on page 22 of this data sheet.
* This product is licensed from Silicon Storage Technology, Inc. (USA).
LE25S40MB
Serial Flash Memory
4 Mb (512K x 8)
Overview
The LE25S40MB is a SPI bus flash memory device with a 4M bit (512K
8-bit) configuration. It uses a single 1.8 V power supply. While making
the most of the features inherent to a serial flash memory device, the
LE25S40MB 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 LE25S40MB 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 1.8 V power supply:
1.65 to 1.95 V supply voltage range
Operating frequency : 40 MHz
Temperature range : 40 to +85C
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 : 40 ms (typ), 150 ms (max)
Sector erase time : 80 ms (typ), 250 ms (max)
Chip erase time : 300 ms (typ), 3.0 s (max)
Page program time : 6.0 ms / 256 bytes (typ), 8.0 ms / 256 bytes (max)
Status functions : Ready/busy information, protect information
Data retention period : 20 years
Package : SOP8K (200 mil)
SOIC-8 / SOP8K (200 mil)
LE25S40MB
www.onsemi.com
2
Package Dimensions
unit : mm
Figure 1 Pin Assignments
SOIC-8 / SOP8K (200 mil)
CASE 751CV
ISSUE O
to
Top view
CS
SO
WP
V
SS
V
DD
HOLD
SCK
SI
1
2
3
4
8
7
6
5
LE25S40MB
www.onsemi.com
3
Figure 2 Block Diagram
Table 1 Pin Description
Symbol Pin Name Description
SCK Serial clock This pin controls the data input/output timing.
The input data and addresses are latched synchronized to the rising edge of the serial clock, and the data is
output synchronized to the falling edge of the serial clock.
SI Serial data input The data and addresses are input from this pin, and latched internally synchronized to the rising edge of the
serial clock.
SO Serial data output The data stored inside the device is output from this pin synchronized to the falling edge of the serial clock.
CS
Chip select The device becomes active when the logic level of this pin is low; it is deselected and placed in standby
status when the logic level of the pin is high.
WP
Write protect The status register write protect (SRWP) takes effect when the logic level of this pin is low.
HOLD
Hold Serial communication is suspended when the logic level of this pin is low.
V
DD
Power supply This pin supplies the 1.65 to 1.95 V supply voltage.
V
SS
Ground This pin supplies the 0 V supply voltage.
4M Bit
Flash EEPROM
Cell Array
Y-DECODER
I/O BUFFERS
&
DATA LATCHES
CS
SCK
SI
HOLD
WP
SO
X-
DECODER
ADDRESS
BUFFERS
&
LATCHES
SERIAL INTERFACE
CONTROL
LOGIC
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22

LE25S40MB-AH

Mfr. #:
Buy LE25S40MB-AH
Manufacturer:
ON Semiconductor
Description:
NOR Flash FLASH MEMORY
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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