SEC1110-A5-02

Specialized Overview

The Microchip Technology SEC1110-A5-02 is a single-chip Smart Card bridge to USB and UART interfaces, controlled by an enhanced 8051 microcontroller. It supports one Smart Card interface compliant with ISO/IEC 7816, EMV 4.2/4.3, ETSI TS 102 221, and PC/SC standards. The device operates at 12 Mbps via USB 2.0 Full Speed and features a self-clocking internal oscillator eliminating the need for external crystals. Electrical specifications include a supply voltage range of 3.6V to 5.5V, a maximum operating current of 55 mA, and a commercial temperature range of 0°C to +70°C. It is housed in a QFN-16 package.

Specialized Feature Summary

• Supports T=0 and T=1 protocols with full-packet FIFO for transmit and receive operations
• Integrates USB 2.0 Full Speed PHY with programmable endpoint buffers
• Includes an enhanced 8051 processor with OTP ROM and RAM
• Provides automatic card deactivation and power management

Specialized Applications

• USB Smart Card readers
• UART-based Smart Card readers
• Dual Smart Card readers

Specialized Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm datasheet revision DS00001561E matches manufacturing records. Ensure proper handling for moisture sensitivity level requirements during storage and assembly processes.

Specialized Selection Notes

Select this model for applications requiring a single Smart Card interface connected via USB. Consider the SEC1210 series if dual card support or UART connectivity is necessary. Verify that the QFN-16 package fits the target PCB layout constraints.

Specialized Part Context

This component belongs to the SEC1110/SEC1210 family of Smart Card bridges. It shares architectural similarities with the SEC1210 but differs in interface count and host connectivity options. The A5 suffix typically denotes specific packaging or temperature grade variations within the product line.

Specialized Replacement Considerations

Direct substitutes include other models from the SEC1110/SEC1210 family such as the SEC1210-CN-02 for dual card support. Cross-referencing pinouts and firmware compatibility is essential when considering alternative interface configurations.