73S8009R
Description
The 73S8009R is a very low-cost level shifter, single smart card (ICC) interface IC. The device includes a level shifter interface between a 3.3 V (typical) logic circuitry (host microcontroller) and an ISO-7816 / EMV smart card.
Key Features
- Card Interface
- An LDO voltage regulator provides 1.8V / 3V / 5V to the card from an external power supply input
- Provides at least 90 mA to the card
- ISO-7816-3 card emergency deactivation sequencer
- Protection includes 3 voltage supervisors that detect voltage drops on VCC (card), VDD (digital) and VPC (regulator) power supplies
- Over-current detection, 150 mA max
- 2 card detection inputs, 1 for each user polarity
- Auxiliary I/O lines for C4 / C8 contact signals
- Card CLK clock frequency up to 20 MHz © 2009 Teridian Semiconductor Corporation 1 73S8009R Data Sheet
- System Controller Interface
