BR24G1MNUX-3AE2(2013) データシートの表示（PDF） - ROHM Semiconductor

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BR24G1MNUX-3AE2
(Rev.:2013)

Serial EEPROM Series Standard EEPROM I2C BUS EEPROM (2-Wire)

ROHM Semiconductor 

BR24Gxxx-3A (128K 256K 1M)

Block Diagram

(2)A0 1

128Kbit, 256Kbit, 1Mbit EEPROM Array

8bit

8 VCC

A1 2

Address

Decoder

(1)14biit

15biit

17biit

Word

Address Register

Data

Register

7 WP

A2 3

GND 4

START

Control Circuit

STOP

ACK

High Voltage

Generating Circuit

Power Source

Voltage Detection

6 SCL

5 SDA

(1) 14bit: BR24G128-3A

15bit: BR24G256-3A

17bit: BR24G1M-3A

(2) A0= Don't use : BR24G1M-3A

Figure 3. Block Diagram

Datasheet

Pin Configuration

Pin Descriptions

(TOP VIEW)

A0 11

81 VCC

A1

21 BR24G128-3A

BR24G256-3A

71 WP

A2 31 BR24G1M-3A 61 SCL

GND 41

51 SDA

Terminal

Name

A0

Input/

Output

Descriptions

BR24G128/256-3A

BR24G1M-3A

Input Slave address setting

Don’t use(1)

A1

Input Slave address setting

A2

Input Slave address setting

GND

SDA

SCL

-

Input/

Output

Input

Reference voltage of all input / output, 0V

Serial data input serial data output

Serial clock input

WP

Input Write protect terminal

VCC

-

Connect the power source.

(1) Pins not used as device address may be set to any of ‘H’, 'L', and 'Hi-Z'.

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TSZ22111・15・001

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TSZ02201-0R2R0G100020-1-2

25.Feb.2013 Rev.002

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