Datasheet

DS_1215F_003 73S1215F Data Sheet
Rev. 1.4 113
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(3:0) pins have pull-ups that may be enabled. The Row pins have 100K pull-
ups.
Symbol Parameter Conditions Min. Typ. Max. Unit
Voh Output level, high Ioh =-2mA 0.8 *VDD VDD V
Vol Output level, low Iol=2mA 0 0.3 V
Vih Input voltage, high 2.7v < VDD <3.6v 1.8 VDD+0.3 V
Vil Input voltage, low 2.7v < VDD <3.6v -0.3 0.6 V
Ileak Leakage current 0 < Vin < VDD
All output modes
disabled, pull-up/downs
disabled
-5 5
μA
Ipu Pull-up current If provided and enabled,
Vout < 0.1v
-5
μA
Ipd Pull-down current If provided and enabled,
Vout > VDD – 0.1v
5
μA
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 Keypad Row output
low current
0.0v < Voh < 0.1v
when pull-up R is
enabled
-40 -100
μA
Iolkcol Keypad column
output high current
0.0v < Voh < 0.1v
when col. is pulled low
-1.5 -3 mA