Datasheet > 24LCS21P

24LCS21P

更新时间： 2024-09-15 23:19:15

品牌	Logo	应用领域
其他 - ETC		可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
12页	157K
描述
I2C Serial EEPROM

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数据手册

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24LCS21P 数据手册

24LCS21

2 ™

1K 2.5V Dual Mode I C Serial EEPROM

PACKAGE TYPES

PDIP

FEATURES

• Completely implements DDC1 /DDC2

interface for monitor identiﬁcation

• Hardware write-protect pin

• Single supply with operation down to 2.5V

• Low power CMOS technology

- 1 mA active current typical

VCC

VCLK

SCL

SDA

- 10 µA standby current typical at 5.5V

VSS

• 2-wire serial interface bus, I C compatible

(SCL)

• Self-timed write cycle (including auto-erase)

• Page-write buffer for up to 8 bytes

• 100 kHz (2.5V) and 400 kHz (5V) compatibility

(SCL)

• 1,000,000 erase/write cycles guaranteed

• Data retention > 200 years

SOIC

VCC

VCLK

SCL

SDA

• 8-pin PDIP and SOIC package

• Available for extended temperature ranges

VSS

- Commercial

(C):

0°C to +70°C

- Industrial (I)

-40°C to +85°C

DESCRIPTION

BLOCK DIAGRAM

The Microchip Technology Inc. 24LCS21 is

128 x 8-bit dual-mode Electrically Erasable PROM.

This device is designed for use in applications requiring

storage and serial transmission of conﬁguration and

control information.Two modes of operation have been

implemented: Transmit Only Mode and bi-directional

Mode. Upon power-up, the device will be in the

Transmit Only Mode, sending a serial bit stream of the

entire memory array contents, clocked by the VCLK

pin. A valid high to low transition on the SCL pin will

cause the device to enter the bi-directional Mode, with

byte selectable read/write capability of the memory

HV GENERATOR

I/O

CONTROL

LOGIC

MEMORY

CONTROL

LOGIC

EEPROM

ARRAY

XDEC

PAGE LATCHES

SDA SCL

YDEC

VCLK

SENSE AMP

R/W CONTROL

array in standard I C protocol.

VCC

VSS

The 24LCS21 also enables the user to write-protect the

entire memory contents using its write-protect pin. The

24LCS21 is available in a standard 8-pin PDIP and

SOIC package in both commercial and industrial

temperature ranges.

DDC is a trademark of the Video Electronics Standards Association.

I²C is a trademark of Philips Corporation.

1999 Microchip Technology Inc.

DS21127D-page 1

This Material Copyrighted by Its Respective Manufacturer

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