STMicroelectronics STM8S005C6T6

Overview

STM8S005C6T6 from STMicroelectronics is a value-line 8-bit microcontroller featuring an advanced STM8 core (16 MHz max), 32 Kbytes Flash, 128 bytes data EEPROM, 10-bit ADC with up to 10 channels, and integrated UART, SPI, and I²C interfaces. It targets cost-sensitive industrial control, appliance motor management, and smart sensor nodes requiring robust I/O (up to 38 pins) and low-power operation.

For engineers reviewing the STM8S005C6T6 datasheet, STM8S005C6T6 pinout, STM8S005C6T6 application, or STM8S005C6T6 equivalent, key selection factors include its LQFP48 package, 2.95–5.5 V operating range, SWIM debug interface, 16-bit advanced control timer with dead-time insertion, and high-sink I/O capability (16 pins).

Technical Context

The STM8S005C6T6 implements a Harvard-architecture 8-bit CPU with 3-stage pipeline and extended instruction set, enabling efficient code density and deterministic interrupt latency. Its clock system integrates four sources: external crystal (up to 24 MHz), external clock input, user-trimmable 16 MHz RC, and low-power 128 kHz RC - all monitored by a clock security system.

Interrupt handling uses a nested controller supporting 32 vectors and up to 37 external interrupts across 6 priority levels. Memory subsystem includes 32 Kbytes Flash (20-year data retention at 55 °C), 128 bytes true EEPROM (100 k write/erase cycles), and 2 Kbytes RAM, with option byte protection and single-wire SWIM programming.

Key Specifications

Pinout & Package

LQFP48 package (7 × 7 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad. Pinout validated per STMicroelectronics DS8638 Rev 5 Figure 3 and Table 5.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with STM8S005C6T6, STM8S003F3P6 trades memory, peripherals, and I/O for footprint reduction, while STM8L051F3P6 prioritizes power efficiency over real-time control features - making the C6T6 optimal for balanced cost-performance in industrial actuation.

Availability

STM8S005C6T6 is available at Aetrix Electronics and suitable for industrial motor control, smart home sensor nodes, appliance UIs, and PLC I/O modules requiring stable component supply and long-term manufacturing support.

Supply support for STM8S005C6T6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

The STM8S value line targets cost-sensitive embedded applications demanding reliability, ease of development, and broad peripheral integration - specifically optimized for appliance, industrial control, and sensor-edge use cases.

FAQ

What debug interface does STM8S005C6T6 support?

The STM8S005C6T6 uses the Single-Wire Interface Module (SWIM), a proprietary ST protocol requiring only one GPIO pin for full in-circuit programming and non-intrusive debugging. It supports flash erase/write, register inspection, and breakpoint execution without halting peripheral operation - eliminating the need for JTAG/SWD hardware.

Does STM8S005C6T6 include hardware CRC calculation?

No, the STM8S005C6T6 does not integrate a hardware CRC engine. CRC computation must be implemented in firmware using the provided 8-bit ALU instructions. ST's STM8S standard peripheral library includes optimized assembly routines for CRC-8 and CRC-16, achieving <10 µs execution time for 128-byte blocks at 16 MHz.

Can STM8S005C6T6 operate from a 3.3 V supply with full 16 MHz performance?

Yes, the STM8S005C6T6 guarantees 16 MHz operation at 3.3 V, as confirmed in Section 9.3.1 of DS8638 Rev 5 (Figure 9). The internal 16 MHz RC oscillator is user-trimmable and maintains ±1% accuracy across temperature and voltage when calibrated - enabling reliable high-speed operation without an external crystal.

How many independent PWM outputs can STM8S005C6T6 generate simultaneously?

The STM8S005C6T6 supports up to 11 independent PWM outputs: 4 from TIM1 (including complementary pairs), 4 from TIM2/TIM3 combined (2 each), and 3 from TIM4 plus AWU-driven GPIO toggling. All channels are software-configurable for frequency, duty cycle, and alignment - with TIM1 offering hardware dead-time insertion for half-bridge safety.