BU8272GUW Datasheet, PDF (5/18 Pages) Rohm – GPIO Expander IC

BU8272GUW
● Electrical Specification
VDD=1.8V, VDDIO=3.0V, VDDI2C=3.0V, Ta=25 ^oC，without output load conditions
Limit
Item
Symbol
Min.
Typ.
Max.
Input H Voltage
V_IH
0.75xVDDIO
-
-
Input L Voltage
V_IL
-
-
0.25xVDDIO
Input H Current
I_IH
0
-
3
Input L Current
I_IL
-3
-
0
Output H Voltage
V_OH
VDDIO－0.2
-
-
Output L Voltage
V_OL
-
-
0.2
SCL clk frequency
fSCL
-
-
400
Bus free time
tBUF
1.3
-
-
（repeat）Start condition
Setup Time
tSU:STA
0.6
-
-
（repeat）Start condition
Hold Time
tHD:STA
0.6
-
-
SCL Low Time
tLOW
1.3
-
-
SCL High Time
tHIGH
0.6
-
-
Data Setup Time
tSU:DAT
100
-
-
Data Hold Time
tHD:DAT
0
-
-
Stop condition
Setup Time
tSU:STO
0.6
-
-
Interrupt Valid
tIV
-
-
0.1
Interrupt Reset
tIR
-
-
1.0
Output Data Valid
tDV
-
-
0.8
Input Data Setup Time
tDS
100
-
-
Input Data Hold Time
tDH
0
-
-
Standby Current
I_STBY
-
-
3.0
Technical Note
Unit
comment
V
V
A
A
V
V
KHz
s
s
-
-
-
-
I_OH=-1.0mA
I_OL=1.0mA
s
s
s
ns
ns
s
s
s
s
ns
s
A
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5/17
2009.09 - Rev.A