BR24C01A-W / BR24C01AF-W / BR24C01AFJ-W / BR24C01AFV-W / BR24C02-W / BR24C02F-W /

Memory ICs

BR24C02FJ-W / BR24C02FV-W / BR24C04-W / BR24C04F-W / BR24C04FJ-W / BR24C04FV-W

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Recommended operating conditions (Ta = 25

°C)

Parameter

Symbol

Limits

Unit

Power supply voltage

V

V

Input voltage

V

0

2.7

~5.5 (WRITE)

2.7

~5.5 (READ)

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Block diagram

BR24C01A-W / AF-W / AFJ-W / AFV-W

1kbits EEPROM ARRAY

CONTROL LOGIC

HIGH VOLTAGE GEN.

ACK

START

STOP

7bits

7bits

8bits

DATA

REGISTER

ADDRESS

DECODER

A0

A1

A2

1

2

3

4

GND

WP

SCL

SDA

8

7

6

5

ADDRESS REGISTER

SLAVE WORD

·

BR24C02-W / F-W / FJ-W / FV-W

2kbits EEPROM ARRAY

CONTROL LOGIC

HIGH VOLTAGE GEN.

ACK

START

STOP

8bits

8bits

8bits

DATA

REGISTER

ADDRESS

DECODER

A0

A1

A2

1

2

3

4

GND

WP

SCL

SDA

8

7

6

5

ADDRESS REGISTER

SLAVE WORD

·

BR24C04-W / F-W / FJ-W / FV-W

4kbits EEPROM ARRAY

CONTROL LOGIC

HIGH VOLTAGE GEN.

ACK

START

STOP

9bits

9bits

8bits

DATA

REGISTER

ADDRESS

DECODER

A0

A1

A2

1

2

3

4

GND

WP

SCL

SDA

8

7

6

5

ADDRESS REGISTER

SLAVE WORD

·

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Pin descriptions

Pin name

Function

A0, A1, A2

Slave address setting pin

SCL

Serial data clock

SDA

Serial data input / output

WP

Write protect pin

Power supply

GND

Ground

∗ An open drain output requires a pull-up resistor.

∗

Slave address setting pin

SCL

SDA

WP

Write protect pin

Power supply

GND

Ground

Pin name

Function

Serial data clock

Serial data input / output

A0, A1, A2

∗ An open drain output requires a pull-up resistor.

∗

Pin name

A0

N.C.

SCL

SDA

WP

Write protect pin

Power supply

GND

Ground

Function

A1, A2

Slave address setting pin

Serial data clock

Serial data input / output

∗ An open drain output requires a pull-up resistor.

∗