INTRODUCTION
The ST72411R devices are members of the ST7 microcontroller family. They are designed for Smartcard reader applications.
All ST72411R family devices are based on a common industry-standard 8-bit core, featuring an enhanced instruction set.

■ Memories
    – 4K Program memory (ROM/FLASH) with read-out protection
    – In-Situ Programming (remote ISP) for FLASH devices using Smartcard or standard I/O lines
    – 256-bytes RAM
■ Clock, Reset and Supply Management
    – Power-on supply at Smartcard insertion
    – Low supply voltage detection for battery monitoring
    – Smart Card withdrawal detection
    – On-chip main clock source
    – 3 Power saving modes
    – Clock-out capability for synchronous and asynchronous Smartcards
■ Smartcard Interface
    – Smart Card Supply Supervisor with: 3V or 5V voltage regulator and current overload protection
■ 15 I/O Ports
    – 15 multifunctional bidirectional I/O lines with: external interrupt capability (2 vectors), 2 alternate function lines, 5 I/Os for ISO7816-3 Smartcard interface, 1 I/O for Smartcard withdrawal detection
■ Display Driver
    – LCD driver with 32 segment outputs and 4 backplane outputs able to drive up to 32x4 LCD displays
■ Timer
    – One 8-bit timer with: 9-bit prescaler, selectable input frequency with external clock input option and event output signal generation capability
■ Instruction Set
    – 8-bit Data Manipulation
    – 63 Basic Instructions
    – 17 main Addressing Modes
    – 8 x 8 Unsigned Multiply Instruction
    – True Bit Manipulation
■ Development Tools
    – Full hardware/software development package