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SA25C020LEMLFX Fiches technique(PDF) 2 Page - List of Unclassifed Manufacturers

No de pièce SA25C020LEMLFX
Description  2Mb EEPROM with 25MHz SPI Bus Interface
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SA25C020LEMLFX Fiches technique(HTML) 2 Page - List of Unclassifed Manufacturers

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SA25C020 Advanced Information
SAIFUN
2
General Description
The SA25C020 is a 2Mb (512K X 4) CMOS
non-volatile serial EEPROM. This device
fully conforms to the SPI 4-wire protocol, is
enabled through the Chip Select (CSb) pin,
and uses Clock (SCK), Data-in (SI) and
Data-out (SO) pins to synchronously control
data
transfer
between
the
SPI
microcontroller and the Serial EEPROM.
The memory can be written from 1 up to
256 bytes at a time via the Byte / Page
Write (PW) instruction.
The memory consists of 1024 pages or
262,144 bytes.
Each device requires only a 3.0V power
supply (2.7 V to 3.6 V) for both read and
write functions. Internally generated and
regulated voltages are provided for the
program
and
erase
operations.
The
SA25C020 does not require a VPP supply.
The HOLDb pin may be used to suspend
any serial communication without resetting
the serial sequence. In addition, the serial
interface
allows
a
minimal-pin-count
packaging designed to simplify PC board
layout requirements and offers the designer
a variety of low-voltage and low-power
options.
The
SA25C020
is
available
in
a
space-saving, 8-lead narrow SOIC package
The SA25C020 is part of the SPI EEPROM
family. It is designed to work with any SPI-
compatible, high-speed microcontroller, and
offers both hardware (WPb pin) and
Software (“block protect”) data protection.
For example, programming a 2-bit code into
the status register prevents program with
top ¼, top ½ or entire array write protection
and
enables
block
write
protection.
Separate program enable and program
disable
instructions
are
provided
for
additional data protection. Hardware data
protection is provided via the WPb pin to
protect against inadvertent write attempts to
the status register.
Saifun’s SPI Serial EEPROM products are
designed and tested for applications
requiring high endurance and low power
consumption for a continuously reliable
non-volatile solution for all markets.


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