TDA8023 Overview
Description
The TDA8023 is a complete cost-efficient, low-power analog interface for synchronous or asynchronous smart cards. It can be placed between the card and the microcontroller with very few external components to perform all supply, protection and control functions.
Key Features
- I2C-bus controlled IC card interface in TSSOP28
- Supply voltage from 2.7 V to 6.5 V
- Independant supply voltage VDD(INTF) for interface signals with the microcontroller
- Shutdown input for very low power consumption when the part is not used
- Power reduction modes when the card is active
- 1 specific protected half duplex bidirectional buffered I/O line, with current limitation at 15 mA, maximum frequency 1 MHz
- 2 auxiliary card I/O lines controlled by I2C-bus (C4 and C8)
- Thermal and short-circuit protections on all card contacts
- Enhanced ElectroStatic Discharge (ESD) protection on card side (> 6 kV)
- 20 MHz clock input
