TDA8023 Overview
The TDA8023 is a plete 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 ponents to perform all supply, protection and control functions.
TDA8023 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
- DC-to-DC converter for VCC generation (capacitive doubler, tripler, or inductive, or
- 1 specific protected half duplex bidirectional buffered I/O line, with current limitation at
- 2 auxiliary card I/O lines controlled by I2C-bus (C4 and C8)
- Thermal and short-circuit protections on all card contacts
- Automatic activation and deactivation sequences: initiated by software or by hardware in the event of a short-circuit, c