73S1209F Maxim, 73S1209F Datasheet - Page 106

• Manufacturer Part Number: 73S1209F
• Description: The 73S1209F is a self-contained, SoC smart card reader IC that is an ideal solution for serially connected ISO 7816 design
• Manufacturer: Maxim

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.
3.4 Oscillator Interface Requirements
3.5 DC Characteristics: Analog Input
106
Symbol
Voh
Vol
Vih
Vil
Ileak
Ipu
Ipd
Symbol
Iled
Iolkrow
Iolkcol
Symbol
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
Fxtal
Symbol
V
THTOL
Parameter
Output level, high
Output level, low
Input voltage, high
Input voltage, low
Leakage current
Pull-up current
Pull-down current
Parameter
LED drive current
Keypad Row output
low current
Keypad column
output high current
Parameter
Input Low Voltage – X12IN
Input High Voltage – X12IN
Input Current –
X12IN
Crystal resonant frequency
Parameter
Voltage Threshold
Tolerance
All output modes disabled,
when pull-up R is enabled
If provided and enabled,
If provided and enabled,
pull-up/downs disabled
when col. is pulled low
Vout > VDD – 0.1v
2.7v < VDD < 3.6v
2.7v < VDD <3.6v
2.7v < VDD <3.6v
0.0v < Voh < 0.1v
0.0v < Voh < 0.1v
0 < Vin < VDD
Vout = 1.3V,
Conditions
Conditions
Vout < 0.1v
Ioh =-2mA
Iol=2mA
Fundamental mode
Selected Threshold
GND < Vin < Vdd
Condition
Condition
Value
0.8 *VDD
0.7*VDD
Min.
Min.
-0.3
1.8
-5
-5
0
Min
-0.3
Min
-3%
-10
6
Typ.
Typ.
10
2
4
Typ.
Typ.
VDD+0.3
Max.
Max.
VDD
Vdd+.0.3
-100
0.3*VDD
0.3
0.6
-3
5
5
+3%
Max
Max
10
12
Rev. 1.2
Unit
Unit
mA
mA
μA
μA
μA
μA
V
V
V
V
MHz
Unit
Unit
μA
V
V
V