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