73S1209F-68IM/F

Overview

The 73S1209F is a System-on-Chip device designed for smart card reader applications, functioning as a UART to ISO-7816 / EMV bridge. It integrates an 80515 high-performance core with up to 24MHz clock speed and 24MIPS processing power. The IC includes 32KB Flash program memory, 2KB user XRAM, and 256B IRAM. It supports dual power supplies: 2.7V to 3.6V digital (VDD) and 4.75V to 6.0V analog (VPC). The device features a built-in ISO-7816 interface compliant with EMV 4.1, a 5x6 PINpad interface, 9 user I/Os, and an I2C master interface.

Feature Summary

• Integrates an 80515 CPU core capable of handling encryption algorithms such as AES, DES, and RSA.
• Provides a self-contained ISO-7816 / EMV bridge with hardware support for T=0 and T=1 protocols.
• Includes a dedicated 5x6 keypad interface with hardware scanning, debouncing, and scrambling capabilities.
• Features an internal linear regulator to generate smart card voltages (1.8V, 3V, or 5V) from the VPC supply.

Applications

• UART to ISO-7816 / EMV Bridges
• PINpad smart card readers for POS terminals and secure login systems
• SIM readers in telecom and personal wireless devices
• Payphones and vending machines

Procurement Notes

Verify the specific package variant required, as the datasheet lists both 68-pin and 44-pin QFN options. Confirm that the target system can accommodate the dual power supply requirement (VDD and VPC). Ensure compatibility with the embedded turnkey firmware or verify access to the necessary software libraries for custom development using the JTAG-like interface.

Selection Notes

Select this component when a complete smart card reading solution is needed without external protocol controllers. It is suitable for designs requiring integrated PINpad functionality and multi-card slot expansion via the I2C interface. Consider the 80515 core performance if complex cryptographic operations like RSA are required on the device itself.

Part Context

Manufactured by Teridian Semiconductor Corporation, now part of Analog Devices Inc./Maxim Integrated. The 73S1209F belongs to the 73S12xxF family of smart card interface ICs. It is designed to simplify system integration by combining the microcontroller, smart card interface, and peripheral drivers into a single CMOS chip.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

FAQ

What encryption standards does the 73S1209F support?

The 80515 CPU core provides sufficient processing power (up to 24MIPS) to meet requirements for AES, DES/3-DES, and RSA encryption algorithms.

How is the smart card power supplied?

The device incorporates a low-dropout linear voltage regulator that generates the smart card power-supply VCC (1.8V, 3V, or 5V) from the analog power supply source VPC.

Can the 73S1209F support multiple smart cards?

Yes, the built-in I2C interface allows it to drive external electrical smart card interfaces, such as the Teridian 73S8010R/C ICs, enabling multi-card slot or multi-SAM architectures.