SEC1210I-CN-02NC-TR

Specialized Overview

The SEC1210I-CN-02NC-TR is a smart card interface IC providing a bridge to USB and UART interfaces. It features two smart card interfaces compliant with ISO/IEC 7816, EMV 4.2/4.3, ETSI TS 102 221, and PC/SC standards. The device supports ETU rates up to 826 Kbps and T=0/T=1 protocols. It includes an enhanced 8051 microcontroller with 9.6 MHz max clock speed, 16 KB OTP ROM, and 1.5 KB RAM. Operating voltage ranges from 3.6V to 5.5V. It operates in commercial temperature range (0°C to +70°C) and uses a QFN-24 package.

Specialized Feature Summary

• Dual smart card interfaces supporting Class A, B, C, and AB cards with automatic power regulation for 1.8V, 3.0V, and 5.0V levels.
• Integrated USB 2.0 full-speed controller with built-in PHY and endpoint buffers for host communication.
• Embedded enhanced 8051 processor with hardware-managed protocol timers and half-duplex operation capabilities.

Specialized Applications

• USB-based dual smart card readers
• UART-based dual smart card readers
• Secure authentication modules requiring dual SIM or smart card support

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's Product Identification System to confirm interface selection and temperature grade. Ensure the component matches the required QFN-24 package dimensions and pinout configuration for your PCB layout. Confirm RoHS compliance status through official documentation before integration.

Specialized Selection Notes

Select this model when dual smart card connectivity is required alongside either USB or UART host interfaces. The SEC1210 series distinguishes itself from the SEC1110 by offering two smart card slots instead of one. Verify that the system design accommodates the 3.6V to 5.5V supply range and the internal oscillator requirements without external crystals.

Specialized Part Context

This component belongs to the Microchip SEC1110/SEC1210 family of smart card bridge controllers. These devices integrate the smart card interface, USB controller, and 8051 core into a single chip, reducing board space and component count compared to discrete solutions. They are designed for secure communication and data processing in embedded systems.

Specialized Replacement Considerations

The SEC1110 serves as a functional substitute if only a single smart card interface is needed. Other members of the SEC1210 family may be considered based on specific interface requirements (USB vs. UART) and temperature ratings. Verify pin compatibility and software register mapping before substitution.

Specialized FAQ

Does the SEC1210 support both USB and UART interfaces simultaneously?

No, the SEC1210 interfaces to the host via either USB or UART, but not both simultaneously. The specific interface is determined by the part number suffix.

What is the maximum supported ETU rate for the smart card interface?

The device supports versatile ETU rate generation, including current and proposed rates up to 826 Kbps.

Is an external crystal required for the SEC1210?

No, the device features a self-clocking internal oscillator, so no external crystal is required for operation.