AK6004A(2002) 데이터 시트보기 (PDF) - Asahi Kasei Microdevices

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AK6004A
(Rev.:2002)

I2C bus 4K / 16Kbit Serial CMOS EEPROM

Asahi Kasei Microdevices 

ASAHI KASEI

[AK6004A/08A]

Pin Descriptions

SCL (Serial Clock)

The SCL input is used to clock all data into and out of the device.

SDA (Serial Data)

The SDA is a bidirectional pin used to transfer data into and out of the device.

It is an open drain output and may be wire-ORed with any number of open drain or open

collector outputs.

S1, S2 (Device Address): AK6004A

The S1 and S2 are device address inputs that are used to set two bits of the slave address.

AK6004A: A total of four devices can be connected to the same bus.

WC (Write Control)

AK6004A: If the WC is High level, WRITE operations will not be executed. If the WC is Low

level, the AK6004A will be enabled to perform WRITE operation.

AK6008A: If the WC is High level, WRITE operations onto the upper half of the memory

(400 to 7FF(Hex)) will not be executed. If the WC is Low level, the AK6008A will

be enabled to perform WRITE operation.

As the WC is internally pulled down to GND, the AK6004A/08A will be enabled to perform

WRITE operation if the WC is left floating.

WC must not change from the start condition input to the stop condition input.

VCC (Power Supply)

GND (Ground)

DAI01E-02

-6-

2002/11

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