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SH3100 Datasheet(PDF) 73 Page - Semtech Corporation

Part # SH3100
Description  Supervisory IC with I2C Interface and PWM
PDF  80 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SH3100 Datasheet(HTML) 73 Page - Semtech Corporation

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SH3100
POWER MANAGEMENT
73
© 2006 Semtech Corp.
www.semtech.com
SA
2
SA
0
SA
1
Slave address (3 LSBs
determined by
I2CSlaveAddr register)
R/
W
RA
7
RA
6
RA
5
RA
4
RA
3
RA
2
RA
1
RA
0
Register Address
SA
2
SA
0
SA
1
0
Slave address (3 LSBs
determined by
I2CSlaveAddr register)
R/
W
WD
7
WD
6
WD
5
WD
4
WD
3
WD
2
WD
1
WD
0
Write Data
Write to single register (combined format)
SAn = Slave Address (bit n)
RAn = Register Address (bit n)
WDn = Write Data (bit n)
RDn = Read Data (bit n)
SCL may be briefly held low
(stretched) by SH3100 here
SA2
SA0
SA1
Slave address (3 LSBs
determined by I2CSlaveAddr
register)
R/W
RA7
RA6
RA5
RA4
RA3
RA2
RA1
RA0
Register Address
WD7 WD6 WD5 WD4 WD3 WD2 WD1 WD0
Write Data
Write to single register ('normal' format)
SCL may be briefly held low
(stretched) by SH3100 here
SDA and SCL are driven by the Master unless otherwise specified.
Read from single register (combined format)
SA
2
SA
0
SA
1
Slave address (3 LSBs
determined by
I2CSlaveAddr register)
R/
W
RA
7
RA
6
RA
5
RA
4
RA
3
RA
2
RA
1
RA
0
Register Address
SA
2
SA
0
SA
1
Slave address (3 LSBs
determined by
I2CSlaveAddr register)
R/
W
RD
7
RD
6
RD
5
RD
4
RD
3
RD
2
RD
1
RD
0
Read data driven by SH3100
SCL may be briefly held low
(stretched) by SH3100 here
SCL
SDA
SCL
SDA
SCL
SDA
I2C Timing Diagrams
Functional Descriptions (continued)



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