TDA8020HL/C2,118

Specialized Overview

The TDA8020HL/C2,118 is a dual smart card interface integrated circuit manufactured by NXP Semiconductors. It provides two independent six-contact interfaces compliant with ISO 7816 and EMV 2000 standards. The device operates on a supply voltage (VDD) ranging from 2.7 V to 6.5 V, utilizing an integrated DC-to-DC converter to generate 3 V or 5 V card supplies. It supports up to 60 mA per card at 5 V and 55 mA at 3 V, with a combined maximum current limit of 80 mA. Control and status monitoring are managed via a 400 kHz I2C-bus interface. The component is housed in an LQFP32 package (SOT358-1) and functions within an ambient temperature range of -40 °C to +85 °C.

Specialized Feature Summary

• Dual independent smart card interfaces with automatic activation and deactivation sequences
• Integrated DC-to-DC converter supporting follower, doubler, and tripler modes for flexible power supply
• I2C-bus control interface allowing parallel connection of up to four devices
• Comprehensive protection mechanisms including overcurrent, overheating, and supply drop-out detection

Specialized Applications

• Set top boxes
• Banking terminals
• Internet terminals

Specialized Procurement Notes

Verify the specific suffix /C2 against the required operating temperature range, as it denotes the industrial grade (-40 °C to +85 °C). Confirm that the LQFP32 package dimensions match the target PCB footprint. Ensure the I2C address pins SAD0 and SAD1 are correctly configured if multiple units are used in a single system to avoid bus conflicts.

Specialized Selection Notes

Select this component when a design requires simultaneous management of two smart cards with minimal external components. The integrated sequencers simplify firmware development by handling ISO 7816 timing automatically. Consider the separate VDDI supply pin if the host controller operates at a logic level lower than the main VDD supply, ensuring compatibility with low-voltage microcontrollers.

Specialized Part Context

This part belongs to the TDA8020HL family of dual IC card interfaces. The /C2 suffix specifically identifies the industrial temperature variant, distinguishing it from the commercial /C1 version which operates from -30 °C to +85 °C. Both variants share identical electrical characteristics and pinouts but differ in their qualified environmental operating ranges.

Specialized Replacement Considerations

Public confirmed substitute part numbers: None.