BU9929FV
Multimedia ICs
I C BUS interface, general purpose I/O
ports with condition watching function
BU9929FV
ROHM鈥檚 GPIO is a general-purpose IO that contains I C BUS interface. It also contains monitoring function that conveys
2
a change of the signal level in terminal to the host system via interrupt terminal or I C BUS.
2
2
!
Applications
2
Notebook PC, PC, VCR, TV etc. and other systems with I C BUS.
!
Features
2
1) I C BUS interface
2) General purpose I/O port 16bits
3) State monitoring function to monitor all terminals
2
4) State detection signal serial output by I C BUS master function
5) Output port of state detection signal
6) State detection ON/OFF setting input port during the default status
7) 32.768kHz clock input
8) Power supply voltage 3.3V / 5.0V
!
Absolute maximum ratings
(Ta=25擄C)
Parameter
Supply voltage
Power dissipation
Operating temperature
Storage temperature
Terminal supply voltage
Symbol
V
DD
Pd
Topr
Tsig
V
IN
Limits
7.0
640
鈭?5
to +75
鈭?5
to +125
GND鈭?.5 to V
DD
+0.5
Unit
V
mW
藲C
藲C
V
鈭桾emperature
derating : 6.4mW/藲C over Ta=25藲C
Radiation resistance is not included in the design.
Rohm CO., Ltd is a licensee of I
2
C BUS from Philips Semiconductors.
!
Recommended operating conditions
(Ta=25擄C)
Parameter
Operating supply voltage range
Min.
3.0
Typ.
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