BH1750FVI
● Terminal Description
Technical Note
PIN No. Terminal Name
Equivalent Circuit
Function
1
2
3
4
VCC
ADDR
GND
SDA
VCC
Power Supply Terminal
I 2 C Slave-address Terminal
ADDR = ‘H’ ( ADDR ≧ 0.7V CC )
“1011100“
ADDR = 'L' ( ADDR ≦ 0.3V CC )
“0100011“
ADDR Terminal is designed as 3 state buffer
for internal test. So that please take care of
V CC and DVI supply procedure.Please see
P6.
GND Terminal
I 2 C bus Interface SDA Terminal
SDA, SCL Reference Voltage Terminal
5
DVI
150k ?
And DVI Terminal is also asynchronous
Reset for internal registers.So that please set
to 'L' ( at least 1μs, DVI <= 0.4V ) after V CC
is supplied. BH1750FVI is pulled down by
150kOhm while DVI = 'L'.
6
SCL
I 2 C bus Interface SCL Terminal
※ These values are design-value, not guaranteed.
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
13/17
2011.11 - Rev.D
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