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Introduction

ST52x430 is an 8-bit Intelligent Control Units (ICU) of the ST Five Family, which can perform both boolean and fuzzy algorithms in an efficient manner, in order to reach the best performances that the two methodologies allow.

ST52x430 is produced by STMicroelectronics using the reliable high performance CMOS process, including integrated-on-chip peripherals that allow maximization of system reliability, decreasing system costs and minimizing the number of external components.

Memories

■ Up to 8 Kbytes EPROM/OTP

■ 256 bytes of RAM

■ Readout Protection

Core

■ Register File Based Architecture

■ 55 instructions

■ Hardware multiplication and division

■ Decision Processor for the implementation of Fuzzy Logic algorithms

Clock and Power Supply

■ Up to 20 MHz clock frequency.

■ Power Saving features

Interrupts

■ 6 interrupt vectors

■ Top Level External Interrupt (INT)

Peripherals

■ 3 Programmable 8-bit Timer/PWMs with internal 16-bit Prescaler featuring:

– PWM output

– Input capture

– Output Compare

– Pulse Generator mode

■ Watchdog timer

■ On-chip 8-bit Sample and Hold A/D Converter with 8-channel analog multiplexer

■ Serial Communication Interface with asynchronous protocol (UART)

I/O Ports

■ 23 I/O PINs configurable in Input and Output mode

■ High current sink/source in all pins.

Development tools

■ High level Software tools

■ Emulator

■ Low cost Programmer

■ Gang Programmer