This document provides information on the ST8024L smartcard interface product, which is designed to be compatible with the NDS conditional access system, and is ISO 7816, GSM11.11, and EMV 4.2 compatible. It features an IC card interface, can be powered by 3V or 5V, and has three specifically protected half-duplex bi-directional buffered I/O lines, among other capabilities.
The ST8024L is a complete low-cost analog interface designed for asynchronous Class A, B, and C smartcards. It interfaces between the card and a microcontroller, performing all supply protection and control functions with few external components. The device is compatible with the NDS conditional access system (except the ST8024LTR variant) and supports ISO 7816, GSM11.11, and EMV 4.2 payment systems.
| Operating Temperature Range | -25 to 85 °C |
|---|---|
| Maximum Operating Junction Temperature | 150 °C |
| ESD Protection (Card Contacts) | >6 kV |
| Integrated Crystal Oscillator | 26 MHz |
| Maximum Clock Frequency | 20 MHz |
| Card Supply Current | < 80 mA |
The device provides less than 80 mA of current when the step-up converter voltage is between 4.75 V and 6.5 V.
The absolute maximum operating junction temperature is 150 °C.
The separately powered step-up converter supply (VDDP) must be between 4.75 V and 6.5 V.