SEC1210I-CN-02

Specialized Overview

The SEC1210I-CN-02 is a smart card bridge IC providing dual ISO/IEC 7816 interfaces to a USB 2.0 host connection. It integrates an enhanced 8051 microcontroller with 16 KB OTP ROM and 1.5 KB RAM, operating at up to 9.6 MHz. The device supports Class A, B, C, and AB smart cards (1.8V, 3.0V, 5.0V) with full T=0 and T=1 protocol handling. Key electrical parameters include a 3.6V to 5.5V supply range, 5.0V tolerant I/O pins, and a self-clocking internal oscillator eliminating the need for external crystals.

Specialized Feature Summary

• Dual smart card interface supporting simultaneous operation of two contact-based cards
• Integrated USB 2.0 full-speed controller with built-in PHY and endpoint buffers
• Hardware-managed activation sequences and automatic deactivation upon card removal
• Comprehensive ESD protection on all smart card contact pins

Specialized Applications

• USB-based dual smart card readers
• Secure authentication terminals
• Payment processing devices requiring dual SIM or payment card support

Specialized Procurement Notes

Verify that the suffix 'CN' corresponds to the commercial temperature grade (0°C to +70°C) as specified in the product identification system. Confirm package type matches QFN-24 requirements. Ensure ordering documentation aligns with Microchip Technology Inc. specifications for this specific variant.

Specialized Selection Notes

Select this model when dual smart card connectivity is required alongside a USB host interface. The SEC1210 series is distinct from the SEC1110 which offers only a single smart card interface. Consider the industrial grade variant if operation below 0°C is necessary. Verify firmware compatibility with the integrated 8051 architecture before implementation.

Specialized Part Context

This component belongs to the SEC1110/SEC1210 family of smart card bridges manufactured by Microchip Technology. These devices are designed to replace discrete logic solutions by integrating the smart card interface, USB controller, and microcontroller into a single chip. The SEC1210 specifically targets applications requiring multiple card slots within a compact form factor.

Specialized Replacement Considerations

The SEC1110 serves as a functional substitute if only a single smart card interface is needed. For UART-based connectivity instead of USB, the SEC1210/PV-URT or SEC1210/PV-UR2 variants should be considered. Direct pin-to-pin replacement requires verifying the host interface configuration.