The ST8024 is a smart card interface designed to minimize microprocessor hardware and software complexity in all applications that require a smart card (e.g., Set Top Box, Electronic Payment, Pay TV, and Identification cards). It was developed in accordance with New Digital Systems (NDS) conditional access requirements, and implements all of the blocks and procedures for card activation/deactivation and checking (see Figure 1).
This document serves as an application note for the ST8024 Smartcard Interface, designed to minimize microprocessor complexity in applications requiring smart cards such as Set Top Boxes and electronic payments. It details the internal block diagram and explains the activation and deactivation sequences required by the ISO/IEC7816 standard.
| Oscillator Frequency | 2.5MHz |
|---|---|
| Power-on Reset Pulse Width | 8ms typ |
| Vpp Falling Threshold Voltage | 2.45V |
| Vpp Hysteresis | 100mV |
| CLK Duty Cycle Range | 45% to 55% |
It is a smart card interface designed to minimize microprocessor hardware and software complexity in applications requiring smart cards.
The device is suitable for Set Top Box, Electronic Payment, Pay TV, and Identification cards.