DS_1217F_002
73S1217F Data Sheet
3.3 Digital IO Characteristics
These requirements pertain to digital I/O pin types with consideration of the specific pin function and
configuration. The Row pins have 100KΩ pull-ups.
Symbol Parameter
Conditions
Ioh = -2mA
Min.
0.8 * VDD
VDD - 0.45
0
Typ.
Max.
Unit
V
Voh
Output level, high
VDD
OFF_REQ pin - IOH = -1mA
Iol = 2mA
V
Vol
Output level, low
0.3
0.45
V
OFF_REQ pin – Iol = 2mA
2.7v < VDD <3.6v
2.7v < VDD <3.6v
V
Vih
Vil
Input voltage, high
Input voltage, low
1.8
-0.3
-0.3
VDD +0.3
0.6
V
V
RESET, ON_OFF,PRES
pins
0.8
V
Ileak
Leakage current
0 < Vin < VDD
All output modes disabled,
pull-up/downs disabled
-5
-5
5
μA
Ipu
Ipd
Pull-up current
If provided and enabled,
Vout < 0.1v
-3
3
μA
μA
Pull-down current
If provided and enabled,
Vout > VDD – 0.1v
5
Symbol Parameter
Conditions
Min.
Typ.
Max.
Unit
Iled
LED drive current
Vout = 1.3V,
2.7v < VDD < 3.6v
1.7
3.4
8.5
2
4
10
2.3
4.6
11.5
mA
Iolkrow
Iolkcol
Keypad Row output
low current
0.0v < Voh < 0.1v
when pull-up R is enabled
-40
-100
-3
μA
Keypad column
0.0v < Voh < 0.1v
-1.5
mA
output high current
when col. is pulled low
Rev. 1.2
117
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