Datasheet > 存储 > EEPROM> 24AA256IP

24AA256IP

更新时间： 2024-11-03 22:17:31

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
12页	178K
描述
256K I 2 C ⑩ CMOS Serial EEPROM

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中文翻译

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数据手册

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24AA256IP 数据手册

24AA256/24LC256

2 ™

256K I C CMOS Serial EEPROM

DEVICE SELECTION TABLE

PACKAGE TYPE

PDIP

Part

Number

VCC

Range

Max Clock

Frequency

Temp

Ranges

Vcc

†

24AA256

24LC256

1.8-5.5V

2.5-5.5V

400 kHz

‡

400 kHz

I, E

SCL

SDA

†

‡

100 kHz for VCC < 2.5V.

100 kHz for E temperature range.

Vss

FEATURES

• Low power CMOS technology

SOIC

- Maximum write current 3 mA at 5.5V

- Maximum read current 400 µA at 5.5V

- Standby current 100 nA typical at 5.5V

• 2-wire serial interface bus, I²C compatible

• Cascadable for up to eight devices

• Self-timed ERASE/WRITE cycle

• 64-byte page-write mode available

• 5 ms max write-cycle time

VCC

SCL

SDA

VSS

• Hardware write protect for entire array

BLOCK DIAGRAM

• Schmitt trigger inputs for noise suppression

• 100,000 erase/write cycles guaranteed

• Electrostatic discharge protection > 4000V

• Data retention > 200 years

A0…A2

HV GENERATOR

• 8-pin PDIP and SOIC (208 mil) packages

• Temperature ranges:

I/O

CONTROL

LOGIC

MEMORY

CONTROL

LOGIC

EEPROM

ARRAY

XDEC

- Industrial (I):

-40°C to +85°C

-40°C to +125°C

- Automotive (E):

PAGE LATCHES

DESCRIPTION

I/O

SCL

YDEC

The Microchip Technology Inc. 24AA256/24LC256

(24xx256*) is a 32K x 8 (256K bit) Serial Electrically

Erasable PROM, capable of operation across a broad

voltage range (1.8V to 5.5V). It has been developed for

advanced, low power applications such as personal

communications or data acquisition. This device also

has a page-write capability of up to 64 bytes of data.

This device is capable of both random and sequential

reads up to the 256K boundary. Functional address

lines allow up to eight devices on the same bus, for up

to 2 Mbit address space. This device is available in the

standard 8-pin plastic DIP, and 8-pin SOIC (208 mil)

packages.

SDA

VCC

VSS

SENSE AMP

R/W CONTROL

I²C is a trademark of Philips Corporation.

*24xx256 is used in this document as a generic part number for the 24AA256/24LC256 devices.

1998 Microchip Technology Inc.

DS21203C-page 1

12 3 4 5 6 7...12

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