Description
PIN
Name
Type
Description
1 CRD_VCCB POWER This pin is connected to the Card power supply pin (C1) (Card B).The corresponding LDO is programmable using the pins SEL0, SEL1 and ENABLE to provide 1.8 V, 3.0 V or 0 V (disable).CRD_VCCB can not be active when CRD_VCCA is active and conversely.2
VDD
POWER This pin is connected to the controller power supply.It configures the level shifter input stage to accept
the signal coming from the microcontroller.A 0.1 mF capacitor shall be used t
Features
- Supports 1.8 V or 3.0 V Operating SIM/SAM/Smart Cards.
- The LDOs are able to Supply more than 50 mA Under 1.8 V and
3.0 V.
- Built.
- in Active and Passive Pullup Resistor for I/O and
CRD_IOA/B Pins in Both Directions.
- All Pins are Fully ESD Protected According to ISO.
- 7816
Specifications.
- ESD Protection on Card Pins in Excess of 8.0 kV (JEDEC HBM).
- Built.
- in Sequencer for Activation and Deactivation.
- Supports up to.
NCN4557 Datasheet
