AK8973 Просмотр технического описания (PDF) - Asahi Kasei Microdevices

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производитель

AK8973

3-axis Electronic Compass

Asahi Kasei Microdevices 

ASAHI KASEI

4.3. Pin Function

[AK8973]

Power

No. Pin name I/O supply Type

Function

system

1 CAD0

I

VID CMOS Slave address 0 input pin

2 CAD1

I

VID CMOS Slave address 1 input pin

3

VID

-

POWER Digital interface positive power supply pin.

This pin is a positive power supply pin for the digital

interface block. By connecting this pin to a 1.85V power

supply, the low-voltage specification digital interface can be

connected.

4

SDA

I/O VID CMOS Control data input/output pin

Input: Schmidt trigger, Output: Open drain

5

SCL

I

VID CMOS Control data clock input pin

Input: Schmidt trigger

6

TST1

I/O

-

Analog Test pin

In usual use, eliminate unnecessary wiring, separate this pin

from other test pins, and keep this pin electrically

nonconnected.

7

INT

O

VID CMOS Interrupt signal output pin

This pin is used to post the measurement completion to the

external CPU. Refer to 6.3.

8 RSTN

I

VID CMOS Reset pin

This pin resets all the register values when "L" is applied.

After turning the power on, be sure to apply "L".

9

NC1

-

-

-

Nonconnected pin

In usual use, eliminate unnecessary wiring, separate this pin

from other test pins, and keep this pin electrically

nonconnected.

10 TST2

I/O

-

Analog Test pin

11 TST3

I/O

-

Analog In usual use, eliminate unnecessary wiring, separate this pin

from other test pins, and keep this pin electrically

nonconnected.

12 NC2

-

-

-

Nonconnected pin

13 NC3

-

-

14 NC4

-

-

-

In usual use, eliminate unnecessary wiring, separate this pin

-

from other test pins, and keep this pin electrically

nonconnected.

15 VDD

-

POWER Power supply pin

16 VSS

-

POWER Ground pin

MS0561-E-01 <Preliminary>

-7-

2007/01

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