73S1209F Data Sheet
DS_1209F_004
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
0
Typ.
Max.
VDD
0.3
Unit
V
Voh
Vol
Vih
Vil
Output level, high
Output level, low
Input voltage, high
Input voltage, low
Leakage current
Iol=2mA
V
2.7v < VDD <3.6v
2.7v < VDD <3.6v
1.8
VDD+0.3
0.6
V
-0.3
V
Ileak
0 < Vin < VDD
All output modes disabled,
pull-up/downs disabled
-5
5
μA
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
-100
-3
μA
Keypad column
0.0v < Voh < 0.1v
mA
output high current
when col. is pulled low
3.4 Oscillator Interface Requirements
Symbol
Parameter
Condition
Min
Typ.
Max
Unit
High-Frequency Oscillator (Xin) Parameters. XIN Is Used As Input For External Clock For Test
Purposes Only. A Resistor Connecting X12in To X12out Is Required, Value = 1MΩ.
VILX12IN
VIHX12IN
IILXTAL
Input Low Voltage – X12IN
Input High Voltage – X12IN
Input Current –
-0.3
0.3*VDD
Vdd+.0.3
V
V
0.7*VDD
GND < Vin < Vdd
-10
6
10
12
μA
X12IN
Fxtal
Crystal resonant frequency
Fundamental mode
MHz
3.5 DC Characteristics: Analog Input
Symbol
Parameter
Condition
Min
Typ.
Max
Unit
VTHTOL
Voltage Threshold
Tolerance
Selected Threshold
Value
-3%
+3%
V
106
Rev. 1.2
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
