SEC1210I-CN-02NC

Specialized Overview

The SEC1210I-CN-02NC is a dual smart card bridge IC manufactured by Microchip Technology. It integrates two ISO/IEC 7816 compliant smart card interfaces with USB 2.0 and UART host connectivity. The device features an enhanced 8051 microcontroller with 16 KB OTP ROM and 1.5 KB RAM, operating at a maximum clock speed of 9.6 MHz. Electrical specifications include a supply voltage range of 3.6 V to 5.5 V and user-accessible I/O pins tolerant to 5.0 V. It supports Class A, B, C, and AB smart cards with internal power regulation for 1.8 V, 3.0 V, and 5.0 V outputs.

Specialized Feature Summary

• Dual smart card interface supporting T=0 and T=1 protocols with full-packet FIFO
• Integrated USB 2.0 controller with built-in PHY and endpoint buffers
• Embedded enhanced 8051 processor with hardware protocol timers
• Internal power management with over-current protection and ESD compliance

Specialized Applications

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

Specialized Procurement Notes

Verify the specific suffix CN-02NC against the official Microchip Product Identification System to confirm package type and temperature grade. Ensure compatibility with existing firmware architectures utilizing the 8051 register space. Confirm that the required host interface matches the UART configuration inherent to this part variant.

Specialized Selection Notes

Select this component when dual smart card support is required alongside USB or UART connectivity. The SEC1210 series is appropriate for applications needing EMV-compliant timing and automatic half-duplex operation. Consider the integrated 8051 resources if on-chip processing of smart card commands is necessary without external controllers.

Specialized Part Context

This part belongs to the SEC1110/SEC1210 family of smart card bridges. While the SEC1110 provides a single smart card interface, the SEC1210 variant offers dual interfaces. The SEC1210 supports both USB and UART host connections, unlike the SEC1110 which is USB-only. This family utilizes TrustSpan technology for secure data handling.

Specialized Replacement Considerations

The SEC1110 serves as a functional substitute if only a single smart card interface is needed. Other variants within the SEC1210 series may differ in host interface selection (USB vs. UART) or package options. Verify pinout compatibility before substitution.