SEC1210-I/PV-UR2

Specialized Overview

The SEC1210-I/PV-UR2 is a dual smart card bridge IC manufactured by Microchip Technology. It integrates an enhanced 8051 microcontroller with USB 2.0 and UART interfaces to connect smart cards to host systems. The device supports two ISO/IEC 7816 compliant smart card slots, operating at voltages of 1.8V, 3.0V, or 5.0V. Electrical specifications include a supply voltage range of 3.6V to 5.5V, a maximum clock speed of 9.6 MHz, and a full-packet FIFO depth of 261 bytes for data buffering. It operates within a commercial temperature range of 0°C to +70°C and is housed in a QFN-24 package.

Specialized Feature Summary

• Dual smart card interface supporting Class A, B, C, and AB cards with automatic power regulation and ESD protection
• Integrated USB 2.0 Full-Speed controller with built-in PHY and programmable endpoint buffers
• Embedded enhanced 8051 processor with 16 KB OTP ROM and 1.5 KB RAM for autonomous protocol handling
• UART interface supporting standard PC baud rates and high-speed 3 M baud operation

Specialized Applications

• USB-based smart card readers
• UART-based smart card readers
• Dual smart card reader devices

Specialized Procurement Notes

Verify the specific suffix UR2 confirms the UART interface configuration as documented in the datasheet. Ensure the industrial temperature grade (I) matches the operational environment requirements. Confirm the QFN-24 package dimensions align with the PCB footprint design. Check for any recent product change notifications regarding pinout or electrical characteristics before finalizing procurement.

Specialized Selection Notes

Select this component when a single-chip solution is required for bridging smart cards to both USB and UART hosts. The SEC1210 variant is necessary for applications requiring two independent smart card slots, unlike the SEC1110 which supports only one. Consider the internal 8051 processing capabilities if software offloading from the host system is desired. Verify that the 3.6V to 5.5V supply range fits the target system power architecture.

Specialized Part Context

The SEC1210 belongs to the SEC1110/SEC1210 family of smart card bridge controllers. These devices utilize TrustSpan technology for secure communication. The SEC1210 serves as the dual-slot counterpart to the single-slot SEC1110, sharing the same core architecture, embedded 8051 controller, and peripheral features while providing additional smart card interface pins.

Specialized Replacement Considerations

The SEC1110 is a related part but supports only one smart card interface. Direct functional substitution requires verifying interface compatibility and slot count requirements. No other direct substitute part numbers are confirmed in the provided documentation.