S6E1C3 Datasheet, PDF (82/107 Pages) Cypress Semiconductor – 32-bit ARM® Cortex®-M0+ FM0+ Microcontroller

S6E1C3 Series
11.4.13 Smart Card Interface Characteristics
Parameter
Output rising time
Output falling time
Output clock frequency
Duty cycle
Symbol
tR
tF
fCLK
∆
Pin Name
ICx_VCC,
ICx_RST,
ICx_CLK,
ICx_DATA
ICx_CLK
(VCC= 1.65 V to 3.6 V, VSS= 0 V, TA=- 40°C to +105°C)
Conditions
Value
Min
Max
Unit Remarks
4
20
ns
CL=30 pF
4
-
45%
20
20
55%
ns
MHz
External pull-up resistor (20 kΩ to 50 kΩ) must be applied to ICx_CIN pin when it’s used as smart card reader function.
Document Number: 002-00233 Rev.*B
Page 82 of 107