73S1210F Data Sheet
DS_1210F_001
3.3 Digital IO Characteristics
These requirements pertain to digital I/O pin types with consideration of the specific pin function and
configuration. The LED(1:0) pins have pull-ups that may be enabled. 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
VDD +0.3
0.6
V
OFF_REQ pin - Iol = 2mA
2.7v < VDD <3.6v
2.7v < VDD <3.6v
RESET, ON_OFF,PRES pins
0 < Vin < VDD
V
Vih
Vil
Input voltage, high
Input voltage, low
1.8
-0.3
-0.3
-5
V
V
0.8
V
Ileak
Leakage current
5
µA
All output modes disabled,
pull-up/downs disabled
Ipu
Ipd
Pull-up current
If provided and enabled,
Vout < 0.1v
-5
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
2
4
mA
10
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
106
Rev. 1.4
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
