Datasheet > 存储 > EEPROM> 24LCS21A-/SN

24LCS21A-/SN

更新时间： 2024-11-05 02:54:03

品牌	Logo	应用领域
美国微芯 - MICROCHIP		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
20页	335K
描述
1K 2.5V Dual Mode I2C⑩ Serial EEPROM

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中文翻译

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24LCS21A-/SN 数据手册

24LCS21A

1K 2.5V Dual Mode I²C^™Serial EEPROM

Features:

Package Types

PDIP

• Single supply with operation down to 2.5V

Vcc

• Completely implements DDC1™/DDC2™

interface for monitor identification, including

recovery to DDC1

VCLK

• Low-power CMOS technology:

Vss

SCL

SDA

- 1 mA active current, typical

- 10 μA standby current, typical at 5.5V

• 2-wire serial interface bus, I²C™ compatible

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

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

• Hardware write-protect pin

SOIC

Vcc

• Page write buffer for up to eight bytes

• 1,000,000 erase/write cycles ensured

• Data retention > 200 years

Vss

VCLK

SCL

SDA

• ESD Protection > 4000V

• 8-pin PDIP and SOIC package

• Available for extended temperature ranges:

- Commercial (C):

- Industrial (I):

0°C to +70°C

-40°C to +70°C

Block Diagram

Description:

HV Generator

The Microchip Technology Inc. 24LCS21A is a

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

This device is designed for use in applications

requiring storage and serial transmission of configura-

tion and control information. Two modes of operation

have been implemented: Transmit-Only mode and

Bidirectional mode. Upon power-up, the device will be

in the Transmit-Only mode, sending a serial bit stream

of the memory array from 00h to 7Fh, clocked by the

VCLK pin. A valid high-to-low transition on the SCL

pin will cause the device to enter the Transition mode

and look for a valid control byte on the I²C bus. If it

detects a valid control byte from the master, it will

switch into Bidirectional mode, with byte selectable

read/write capability of the memory array using SCL.

If no control byte is received, the device will revert to

the Transmit-Only mode after it receives 128 consec-

utive VCLK pulses while the SCL pin is idle. The

24LCS21A also enables the user to write-protect the

entire memory array using its write-protect pin. The

24LCS21A is available in a standard 8-pin PDIP and

SOIC package in both commercial and industrial

temperature ranges.

I/O

Control

Logic

Memory

Control

Logic

EEPROM

Array

XDEC

Page Latches

SCL

SDA

YDEC

VCLK

Sense AMP

R/W Control

VCC

VSS

Pin Function Table

Name

Function

VSS

Write-Protect (active low)

Ground

SDA

SCL

VCLK

VCC

Serial Address/Data I/O

Serial Clock (Bidirectional mode)

Serial Clock (Transmit-Only mode)

+2.5V to 5.5V Power Supply

No Connection

DDC is a trademark of the Video Electronics Standards Assoc.

I C is a trademark of Philips Corporation.

DS21161G-page 1

12 3 4 5 6 7...20

中文翻译

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与24LCS21A-/SN相关器件

型号	品牌	获取价格	描述	数据表
24LCS21A_05	MICROCHIP	获取价格	1K 2.5V Dual Mode I2C⑩ Serial EEPROM
24LCS21AI/P	MICROCHIP	获取价格	128 X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8, 0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-8
24LCS21A-I/P	MICROCHIP	获取价格	1K 2.5V Dual Mode I2C⑩ Serial EEPROM
24LCS21A-I/PROC	MICROCHIP	获取价格	128 X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8, 0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-8
24LCS21AI/SN	MICROCHIP	获取价格	暂无描述
24LCS21A-I/SN	MICROCHIP	获取价格	1K 2.5V Dual Mode I2C⑩ Serial EEPROM
24LCS21A-I/SNG	MICROCHIP	获取价格	128 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8, 0.150 INCH, ROHS COMPLIANT, PLASTIC, SOIC-8
24LCS21AT-/P	MICROCHIP	获取价格	1K 2.5V Dual Mode I2C⑩ Serial EEPROM
24LCS21AT/SN	MICROCHIP	获取价格	128 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8, 0.150 INCH, PLASTIC, SOIC-8
24LCS21AT-/SN	MICROCHIP	获取价格	1K 2.5V Dual Mode I2C⑩ Serial EEPROM

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