BH1715FVC datasheet(6/17 Pages) ROHM

Part #	BH1715FVC

Description	Digital 16bit Serial Output Type Ambient Light Sensor IC

PDF	17 Pages

Scroll/Zoom	100%

Manufacturer	ROHM [Rohm]

Direct Link	http://www.rohm.com

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6 / 17 page

BH1715FVC

Technical Note

6/16

www.rohm.com

2010.06 - Rev.B

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Timing chart for VCC and DVI power supply sequence

DVI is I

2C bus reference voltage terminal. And it is also asynchrono reset terminal. It is necessary to set to 'L' after VCC is

supplied. In DVI 'L' term, internal state is set to Power Down mode.

1) Recommended Timing chart1 for VCC and DVI supply.

2) Timing chart2 for VCC and DVI supply.

(If DVI rises within 1us after VCC supply)

VCC

DVI

Reset Term ( more than 1µs )

VCC

DVI

Don't care state

ADDR, SDA, SCL is not stable if DVI 'L' term ( 1µs ) is not given by systems.

In this case, please connect the resisters ( approximately 100kOhm ) to ADDR without directly

connecting to VCC or GND,because it is 3 state buffer for Internal testing.

Reset Term ( more than 1µs )

BH1715FVC Datasheet(PDF) 6 Page - Rohm