SEC1200-CN-02-TR

Specialized Overview

The SEC1200-CN-02-TR is a smart card bridge IC providing interfaces to USB, SPI, and UART. It features two ISO/IEC 7816 compliant smart card slots supporting Class A, B, C, and AB cards with voltages of 1.8 V, 3.0 V, and 5.0 V. The device includes an enhanced 8051 microcontroller with 16 KB OTP ROM and 1.5 KB RAM, operating at up to 16 MHz. It supports Full-Speed USB (12 Mbps), SPI (up to 12 MHz), and UART (up to 1 M baud). Operating voltage ranges from 3.0 V to 5.5 V, with 5.0 V tolerant I/O. The component is housed in a 24-pin QFN package.

Specialized Feature Summary

• Dual smart card interface fully compliant with ISO/IEC 7816, EMV, and PC/SC standards
• Integrated USB 2.0 Full-Speed controller with programmable endpoint buffers
• Supports both SPI master/slave modes and high-speed UART communication
• Self-contained power management for smart card regulation and current limiting

Specialized Applications

• USB-based dual smart card readers
• SPI-based smart card reader systems
• UART-based smart card reader applications

Specialized Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type, temperature range, and tape-and-reel specifications. Ensure compatibility with system voltage requirements and interface needs before procurement.

Specialized Selection Notes

Select this model when dual smart card support is required alongside multiple host interfaces. Compare against the SEC1100 if only a single smart card slot is needed. Verify that the 24-pin QFN package fits the target PCB layout constraints.

Specialized Part Context

This component belongs to the SMSC SEC1100/SEC1200 family of smart card bridges. It shares the core 8051 architecture and USB capabilities with the SEC1100 but adds a second smart card interface and additional communication ports like SPI and UART.

Specialized Replacement Considerations

The SEC1100 serves as a functional substitute if only one smart card interface is required. No other direct replacements are documented in the provided source material.