BU9883FV-W_1 Datasheet, PDF (7/19 Pages) Rohm – I2C BUS3Ports for HDMI Port Serial EEPROM

BU9883FV-W
●BLOCK DIAGRAM
Vcc1
Vcc2
Vcc3
Voltage
Detect
Logic
Technical Note
Vcc0
Port １
SCL1
SDA1
Port 2
SCL2
SDA2
LDO
Low Voltage
Logic
VCC OUT
EN
I/O
(PORT1)
LEVEL
Shifter
RD
CONTROL
BANK0
(2Kbit EEPROM)
WR
RD
EN
I/O
(PORT2)
LEVEL
Shifter
RD
CONTROL
BANK1
(2Kbit EEPROM)
WR
RD
WPB
Port 0
LEVEL
CONTROL
Shifter
I/O
EN
(PORT0) ^SCL0
SDA0
SCL0
SDA0
Port ３
SCL3
SDA3
EN _I/O
(PORT3)
LEVEL
Shifter
CONTROL ^RD
BANK2
(2Kbit EEPROM)
WR
RD
Fig.38 BLOCK DIAGRAM
HDMI Sink
0.1uF
PWR_HDMI1
DDC_SCL1
DDC_SDA1
PWR_HDMI2
DDC_SCL2
DDC_SDA2
PWR_HDMI3
DDC_SCL3
DDC_SDA3
47KΩ
47KΩ
0.1uF
47KΩ 47KΩ
0.1uF
47KΩ 47KΩ
Vcc1
Vcc0
SCL1
SDA1
WPB
ROHM _{Vcc OUT}
Vcc2 BU9883FV-W
SCL2
SDA2
Vcc3
SCL3
SDA3
SCL0
SDA0
GND
0.1uF
0.1uF
PWR_SYS
μ Controller
WPB_OUT
I²C_SCL
I²C_SDA
HDMI
Receiver
SDA3
SCL3
SCL_SINK
SDA2 HDMI
SCL2
SDA1
SCL1
Switch
SDA_SINK
DDC_SCL
DDC_SDA
Fig.39 Application circuit
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2009.04 - Rev.B