Introduction

STLUX385

2/10

Doc ID 024169 Rev 2

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Introduction

The core of the STLUX385 is the enhanced STM8 MCU, providing increased power

processing while maintaining the advantages of the CISC architecture, a 24-bit linear

addressing mode, 8-bit data bus and an optimized architecture for low power applications.

The microcontroller includes an in-circuit debug module with a hardware interface (SWIM

single wire) which allows non-intrusive application debugging and ultra-fast Flash

programming code.

The device has an embedded low power, low voltage, single voltage 32 Kbytes of non

volatile program memory and true 1 Kbyte RWW data EEPROM with Error Correction Code

(ECC).

The STLUX385 microcontroller provides the following benefits:

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Very high reliability and memory endurance

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More than 15 years of operating life time

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More than 15 years of data retention for program and Data Memory after cycling

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Flexible peripherals to form a powerful engine capable of driving all types of switch

mode converters. It covers the topologies in the field of lighting and power

management starting from simple buck converters for LED driving, boost for power

factor correction, half-bridge resonant converters for dimmable fluorescent tube lamp

ballasts, up to full bridge control in HID lamp ballasts

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Fast analog comparators (50 ns max propagation delay)

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96 MHz PLL for high output signal resolution

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Six independent SMED (state machine - event driven) units - programmable signal

generators

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Programmable connection box to interconnect SMEDs and other peripherals into

complex timer blocks

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10-bit, 8 multiplexed channels ADC with operational amplifier to extend resolution

to 12-bit

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DALI hardware communication cell