73S8024C Overview
The Teridian 73S8024C is a single smart card interface IC. It provides full electrical pliance with ISO-7816-3, EMV 4.0 and NDS specifications1. Interfacing with the system controller is done through the control bus, posed of digital inputs to control the interface, and one interrupt output to inform the system controller of the card presence and faults.
73S8024C Key Features
- Card Interface
- plies with ISO-7816-3, EMV 4.0 and NDS1
- A DC-DC Converter provides 3V / 5V to the card from an external power supply input
- High-efficiency converter: > 80% @ V DD =3.3 V, V CC =5 V and I CC = 65 mA
- Up to 100 mA supplied to the card
- ISO-7816-3 Activation / Deactivation sequencer with emergency automated deactivation on card removal or fault detected b
- Protection includes 2 voltage supervisors which detect voltage drops on card V CC and on V DD power supplies
- The V DD voltage supervisor threshold value can be externally adjusted
- True over-current detection (150 mA max.)
- 2 card detection inputs, 1 for each possible user polarity