Datasheet > 存储 > EEPROM> 24LC41A

24LC41A

更新时间： 2024-02-01 06:18:37

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
18页	234K
描述
1K/4K 2.5V Dual Mode, Dual Port I2C⑩ Serial EEPROM

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技术参数
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24LC41A 技术参数

生命周期：	Obsolete	零件包装代码：	DIP
包装说明：	DIP, DIP8,.3	针数：	8
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.32.00.51	风险等级：	5.84
Is Samacsys：	N	其他特性：	ALSO CONTAINS 128 X 8 BIT MEMORY BLOCK
最大时钟频率 (fCLK)：	0.4 MHz	数据保留时间-最小值：	40
耐久性：	10000000 Write/Erase Cycles	I2C控制字节：	1010XXMR/1010XXXR
JESD-30 代码：	R-PDIP-T8	长度：	9.46 mm
内存密度：	4096 bit	内存集成电路类型：	EEPROM
内存宽度：	8	功能数量：	1
端口数量：	2	端子数量：	8
字数：	512 words	字数代码：	512
工作模式：	SYNCHRONOUS	最高工作温度：	85 °C
最低工作温度：	-40 °C	组织：	512X8
封装主体材料：	PLASTIC/EPOXY	封装代码：	DIP
封装等效代码：	DIP8,.3	封装形状：	RECTANGULAR
封装形式：	IN-LINE	并行/串行：	SERIAL
电源：	3/5 V	认证状态：	Not Qualified
座面最大高度：	4.32 mm	串行总线类型：	I2C
最大待机电流：	0.00006 A	子类别：	EEPROMs
最大压摆率：	0.003 mA	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	2.5 V	标称供电电压 (Vsup)：	3 V
表面贴装：	NO	技术：	CMOS
温度等级：	INDUSTRIAL	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	DUAL
宽度：	7.62 mm	最长写入周期时间 (tWC)：	10 ms
写保护：	HARDWARE	Base Number Matches：	1

24LC41A 数据手册

24LC41A

1K/4K 2.5V Dual Mode, Dual Port I²C™ Serial EEPROM

The 4K-bit microcontroller port is completely indepen-

dent of the DDC port, therefore, it can be accessed

continuously by a microcontroller without interrupting

DDC transmission activity. The 24LC41A is available in

a standard 8-pin PDIP package in both commercial and

industrial temperature ranges.

Features

• Single supply with operation down to 2.5V

• Completely implements DDC1/DDC2 interface

for monitor identification, including recovery to

DDC1

• Improved noise immunity

Package Type

• Separate high speed 2-wire bus for

microcontroller access to 4K-bit Serial EEPROM

• Low-power CMOS technology

PDIP

DSCL

DSDA

Vcc

• 2 mA active current typical

• 20 µA standby current typical at 5.5V

• Dual 2-wire serial interface bus, I²C^™compatible

• Hardware write-protect for Microcontroller Access

Port

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

• Page write buffer for up to 8 bytes (DDC port) or

16 bytes (4K Port)

VCLK

VSS

MWP

MSCL

MSDA

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

• 1,000,000 erase/write cycles

Block Diagram

• Data retention > 40 years

• 8-pin PDIP package

DSDA

EDID Table

1K-Bit

• Available for extended temperature ranges

VCLK

DSCL

- Commercial (C):

- Industrial (I):

0°C to

-40°C to

+70°C

+85°C

MSDA

Description

4K-Bit

Serial

EEPROM

The Microchip Technology Inc. 24LC41A is a dual port

128 x 8 and 512 x 8-bit Electrically Erasable PROM

(EEPROM). This device is designed for use in applica-

tions requiring storage and serial transmission of

configuration and control information. Three modes of

operation have been implemented:

MSCL

• Transmit-only mode for the DDC Monitor Port

• Bidirectional mode for the DDC Monitor Port

Pin Function Table

• Bidirectional, industry-standard 2-wire bus for the

4K Microcontroller Access Port

Name

Function

DSCL

Serial Clock for DDC Bidirectional mode

(DDC2)

Upon power-up, the DDC Monitor Port will be in the

Transmit-only mode, repeatedly sending a serial bit

stream of the entire memory array contents, clocked by

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

DSCL pin will cause the device to enter the transition

mode, an look for a valid control byte on the I²C bus. If

it detects a valid control byte from the master, it will

switch to Bidirectional mode, with byte selectable read/

write capability of the memory array using DSCL. If no

control byte is received, the device will revert to the

Transmit-only mode after it received 128 consecutive

VCLK Package Type pulses while the DSCL pin is idle.

DSDA

VCLK

Serial Address and Data I/O(DDC Bus)

Serial Clock for DDC Transmit-only mode

(DDC1)

MSCL

MSDA

MWP

Serial clock for 4K-bit MCU port

Serial Address and Data I/O for 4K-bit MCU port

Hardware write-protect for Microcontroller

Access Port

VSS

VCC

Ground

+2.5V to +5.5V power supply

I²C is a trademark of Philips Corporation.

DDC is a trademark of Video Electronics Standards Association.

 2003 Microchip Technology Inc.

DS21176D-page 1

12 3 4 5 6 7...18

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