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SiI 141B SiI-DS-0037-C
Silicon Image, Inc. 10 Subject to Change without Notice
Equation [2]
>
OHDMIN
CC
I
V
R
or
>
OHDMIN
IH
I
V
R
Example :
When ST(pin# 79) = 1,Vcc = 3.3V
R > 660Ω = Vcc (or V
IH
of external chip) / Min I
OHD
= 3.3V / 5.0mA
The resistor value should be larger than 660ohms
When ST(pin# 79) = 0,Vcc = 3.3V
R > 1,320Ω = Vcc (or V
IH
of external chip) / Min I
OHD
= 3.3V / 2.5mA
The resistor value should be larger than 1,320ohms.
These examples assume Vcc (or V
IH
) of 3.3V, with a lower V
IH
, the minimum pull down resistor value may be
smaller.