BH1751FVI-TR Rohm Semiconductor, BH1751FVI-TR Datasheet - Page 9

• Manufacturer Part Number: BH1751FVI-TR
• Description: IC AMBIENT LIGHT SENSOR 6WSOF
• Manufacturer: Rohm Semiconductor
• Series: -r

Specifications of BH1751FVI-TR

• Wavelength: 560nm
• Output Type: I²C™
• Package / Case: 6-WSOF Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

●I
© 2010 ROHM Co., Ltd. All rights reserved.
BH1751FVI
www.rohm.com
2
C Bus Access
1) I
2) Slave Address
3) Write Format
4 ) Read Format
ex )
* I
ST
Write measurement command and Read measurement result are done by I
specification of I
Slave Address is 2 types, it is determined by ADDR Terminal
BH1751FVI is not able to accept plural command without stop condition. Please insert SP every 1 Opecode.
2
2
C BUS is trademark of Phillips Semiconductors. Please refer formality specification.
C Bus Interface Timing chart
S T
ADDR = ‘H’ ( ADDR ≧ 0.7VCC ) → “1011100“
ADDR = 'L' ( ADDR ≦ 0.3VCC ) → “0100011“
SDA
SCL
High Byte = "1000_0011"
Low Byte = "1001_0000"
( 2
t
f
15
+ 2
S
S
9
+ 2
from Master to Slave
2
8
Slave Address
t
C Bus interface, and follow the formally timing chart.
t
HD ; STA
+ 2
LOW
Slave Address
7
+ 2
4
) / 1.2 ≒ 28067 [ lx ]
t
r
t
HD ; DAT
2
7
t
SU ; DAT
2
6
t
HIGH
2
t
Low Byte [7:0]
5
R/W
0
2
R/W
4
t
1
f
t
2
SU ; STA
Ack
3
9/16
Ack
2
2
2
1
Sr
2
0
2
15
t
2
HD ; STA
14
HD
2
Ack
C Bus interface. Please refer the formally
from Slave to Master
Opecode
High Byte [15:8]
2
13
2
SP
12
2
11
t
SU;STO
2
10
2
9
t
r
2
8
Technical Note
2010.02 - Rev.A
P
Ack
t
BUF
Ack
SP
S
S