SA25C020LEMLFF datasheet(2/31 Pages) ETC

2 / 31 page

SA25C020 Advanced Information

SAIFUN

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

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

available

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.

SA25C020LEMLFF Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers

SA25C020LEMLFF Datasheet(HTML) 2 Page - List of Unclassifed Manufacturers

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Datasheet Download

Link URL