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INTRODUCTION

The ST6215C, 25C devices are low cost members of the ST62xx 8-bit HCMOS family of microcontrollers, which is targeted at low to medium complexity applications. All ST62xx devices are based on a building block approach: a common core is surrounded by a number of on-chip peripherals.

■ Memories

– 2K or 4K bytes Program memory (OTP, EPROM, FASTROM or ROM) with read-out protection

– 64 bytes RAM

■ Clock, Reset and Supply Management

– Enhanced reset system

– Low Voltage Detector (LVD) for Safe Reset

– Clock sources: crystal/ceramic resonator or RC network, external clock, backup oscillator (LFAO)

– Oscillator Safeguard (OSG)

– 2 Power Saving Modes: Wait and Stop

■ Interrupt Management

– 4 interrupt vectors plus NMI and RESET

– 20 external interrupt lines (on 2 vectors)

– 1 external non-interrupt line

■ 20 I/O Ports

– 20 multifunctional bidirectional I/O lines

– 16 alternate function lines

– 4 high sink outputs (20mA)

■ 2 Timers

– Configurable watchdog timer

– 8-bit timer/counter with a 7-bit prescaler

■ Analog Peripheral

– 8-bit ADC with 16 input channels

■ Instruction Set

– 8-bit data manipulation

– 40 basic instructions

– 9 addressing modes

– Bit manipulation

■ Development Tools

– Full hardware/software development package