ST8024 Description
The ST8024 is a plete low cost analog interface for asynchronous 3 V and 5 V smart cards. It can be placed between the card and the microcontroller with few external ponents to perform all supply protection and control functions. ST8024 is a direct replacement of ST8004.
ST8024 Key Features
- Designed to be patible with the NDS conditional access system
- IC card interface
- 3 or 5 V supply for the IC (VDD and GND)
- Three specifically protected half-duplex bi
- DC-DC converter for VCC generation separately powered from a 5 V ± 20% supply (VDDP and PGND)
- 3 or 5 V ± 5 % regulated card supply voltage (VCC) with appropriate decoupling has the following capabilities
- ICC < 80 mA at VDDP = 4 to 6.5 V
- Handles current spikes of 40 nA up to 20 MHz
- Controls rise and fall times
- Filtered overload detection at approximately 120 mA