73S1215F-68IM/F

Overview

The 73S1215F-68IM/F is an 8-bit microcontroller system-on-chip based on the 80515 core, designed for smart card reader applications. It integrates a USB 2.0 full-speed interface (12Mbps), an ISO 7816/EMV smart card interface, and a 5x6 PINpad interface. The device features 64KB Flash program memory, 2KB user XRAM, and 256B IRAM. Operating at CPU clock speeds up to 24MHz, it delivers up to 20 MIPS processing power. The chip supports a single crystal frequency between 6MHz and 12MHz, with an optional 32768Hz sub-system oscillator for real-time clock functions. It operates within a voltage range of 2.7V to 3.6V (3V to 3.6V when USB is active) and is housed in a 68-pin QFN package.

Feature Summary

• Integrates a high-performance 80515 core capable of executing most instructions in one clock cycle.
• Includes dedicated hardware interfaces for USB 2.0 full-speed communication and ISO 7816/EMV smart card protocols.
• Features built-in security mechanisms including in-system programmable Flash memory lockable by on-silicon fuses.
• Provides extensive I/O capabilities including a 5x6 keypad interface with hardware scanning and multiple user I/O lines.

Applications

• Hand-held PINpad smart card readers connected via USB or serial interfaces
• E-banking devices such as MasterCard CAP terminals
• Smart card reader modules for PC laptops and desktops using ExpressCard or USB form factors
• Digital identification systems requiring secure login and government ID verification

Procurement Notes

Verify that the specific part number suffix matches the required package type, as the 73S1215F family includes both 44-pin and 68-pin QFN variants. Confirm compliance requirements against the datasheet specifications, noting that certain ordering suffixes may indicate factory-loaded firmware versions. Ensure the procurement documentation explicitly references the Analog Devices or Maxim Integrated datasheet revision 1.4 to guarantee component authenticity and correct electrical characteristics.

Selection Notes

Select this component for designs requiring a cost-effective solution that combines USB connectivity with smart card reading capabilities in a single chip. The integrated 80515 core offers sufficient processing power for encryption tasks like AES and RSA. Consider the available software libraries for EMV and USB protocols if rapid certification is needed. Evaluate the 68-pin QFN package constraints against the board layout requirements for the additional I/O and interface pins compared to the 44-pin alternative.

Part Context

The 73S1215F belongs to the Teridian Semiconductor 73S1xxF series of System-on-Chips, later acquired by Maxim Integrated and subsequently Analog Devices. This series targets the embedded smart card market, providing turnkey solutions for developers. The 68-pin variant expands upon the base functionality with additional pin access for complex peripheral integration while maintaining compatibility with the standard 8051 instruction set architecture.

Replacement Considerations

Public confirmed substitute part numbers include the 73S1215F-44IM/F for reduced pin count applications and the 73S1215F-68IM/F/PB for lead-free compliant assemblies. Verify mechanical footprint compatibility when substituting between the 44-pin and 68-pin packages.

FAQ

Does the 73S1215F support synchronous smart card activation?

Yes, the device supports both asynchronous and synchronous activation sequences for smart cards, including the generation and reading of ATR signals.

What encryption algorithms can the 80515 core handle?

The core provides up to 20 MIPS processing power, meeting the requirements for various encryption needs such as AES, DES/3-DES, and RSA.

Is the Flash memory reprogrammable after production?

Yes, the embedded Flash memory is in-system programmable and can be locked using on-silicon fuses for security.