STMicroelectronics STM8S005K6T6CTR

Overview

STM8S005K6T6CTR from STMicroelectronics is an 8-bit value-line microcontroller featuring a Harvard-architecture STM8 core, 32 Kbytes Flash memory, 128 bytes data EEPROM, 10-bit ADC with 10-channel multiplexing, and integrated UART, SPI, and I²C interfaces. It operates up to 16 MHz at 2.95–5.5 V and targets cost-sensitive industrial control, appliance timing, and sensor interface applications.

For engineers reviewing the STM8S005K6T6CTR datasheet, STM8S005K6T6CTR pinout, STM8S005K6T6CTR application, or STM8S005K6T6CTR equivalent, key selection criteria include its LQFP48 package, SWIM debug interface, 2 Kbytes RAM, low-power modes (wait/active-halt/halt), and high-sink I/O capability (16 pins).

Technical Context

The STM8S005K6T6CTR implements a 3-stage pipelined STM8 core with nested interrupt controller supporting 32 interrupts and up to 37 external vectors. Its clock system integrates four sources: user-trimmable 16 MHz RC, 128 kHz low-power RC, crystal oscillator, and external clock input - all managed via flexible gating and security monitoring.

Analog and timing subsystems include a ±1 LSB 10-bit ADC with scan mode and analog watchdog, two 16-bit general-purpose timers (TIM2/TIM3) with CAPCOM channels, and an advanced 16-bit timer (TIM1) with dead-time insertion, complementary outputs, and synchronization - enabling precise motor control and power conversion timing.

Key Specifications

Pinout & Package

LQFP48 package (7 × 7 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad (not electrically connected). 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 STM8S005K6T6CTR, the STM8S003F3P6 trades memory and EEPROM for smaller footprint and lower cost, while the STM8L051F3P6 sacrifices speed and drive strength for extreme energy efficiency - making the K6 optimal for balanced performance, integration, and 5 V compatibility.

Availability

STM8S005K6T6CTR is available at Aetrix Electronics and suitable for industrial control panels, home appliance mainboards, and sensor interface modules requiring stable component supply and long-term manufacturability.

Supply support for STM8S005K6T6CTR 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 ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM8S value line targets cost-sensitive embedded applications demanding robust peripherals, low-voltage operation, and toolchain compatibility - emphasizing ease of migration from legacy 8-bit platforms.

FAQ

What is the maximum operating frequency and corresponding supply voltage range?

The STM8S005K6T6CTR achieves 16 MHz maximum CPU frequency across its full 2.95–5.5 V operating voltage range. This is confirmed by Figure 9 (fCPUmax vs VDD) in DS8638 Rev 5, where 16 MHz is sustained down to 2.95 V with proper VCAP decoupling and ambient temperature ≤85 °C.

Does this MCU support hardware-based UART auto-baud rate detection?

No, the STM8S005K6T6CTR UART2 does not implement hardware auto-baud detection. Baud rate is configured via the BRR register using integer division of the APB clock. Synchronization relies on start-bit edge detection and fixed oversampling (8x or 16x), requiring known or negotiated baud rates during initialization.

How many I/O pins support high-sink capability, and what is the rated current?

Sixteen I/O pins support high-sink operation: PB0–PB3, PC5–PC7, PD0–PD3, PE0–PE3, and PF0–PF3. Each delivers up to 100 mA sink current at VDD = 5 V (Table 39), enabling direct drive of LEDs, relays, or small solenoids without external transistors.

Is the data EEPROM accessible during program execution, and what is its endurance?

Yes, the 128-byte data EEPROM supports read-while-write operation - allowing concurrent code execution and parameter updates. It guarantees 100,000 write/erase cycles and 20-year data retention at 55 °C after 100 cycles, as specified in Section 4.4 and Table 35 of DS8638 Rev 5.