STMicroelectronics STM8L152C6T6TR

Overview

STM8L152C6T6TR from STMicroelectronics is an 8-bit ultra-low-power microcontroller featuring 32 KB Flash, 1 KB data EEPROM with ECC, RTC, LCD controller (4×28 segments), 12-bit ADC (1 Msps, 25 channels), 12-bit DAC, two ultra-low-power comparators, and multiple timers including an advanced control timer for motor control. It operates from 1.65 V to 3.6 V and supports industrial temperature range (–40 °C to +85 °C), deployed in battery-powered metering and portable medical devices.

For engineers reviewing the STM8L152C6T6TR datasheet, STM8L152C6T6TR pinout, STM8L152C6T6TR application, or STM8L152C6T6TR equivalent, key selection criteria include ultra-low-power mode current (350 nA in Halt), LCD segment drive capability, integrated RTC with auto-wakeup, and SWIM-based non-intrusive debugging support.

Technical Context

The STM8L152C6T6TR implements a Harvard-architecture STM8 core with 3-stage pipeline, delivering up to 16 MIPS at 16 MHz. Its clock system integrates dual oscillators (1–16 MHz HSE and 32 kHz LSE), factory-trimmed 16 MHz RC, and 38 kHz low-consumption RC, all managed by a clock security system.

Power management includes five configurable low-power modes - Wait, Low Power Run (5.1 µA), Low Power Wait (3 µA), Active-Halt with full RTC (1.3 µA), and Halt (350 nA) - with fast 4.7 µs wakeup from Halt. The device supports RWW (Read-While-Write) Flash and ECC-protected EEPROM for robust firmware updates and data logging.

Key Specifications

Pinout & Package

LQFP48 package (7 × 7 mm, 0.5 mm pitch), RoHS-compliant, ECOPACK®2 certified. Pin count: 48 leads; thermal resistance θ_JA = 49 °C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power MCU applications.

Compared with STM8L152K6T3TR, the STM8L152C6T6TR offers full LCD support and 41 GPIOs in LQFP48, while STM32L053R8T6 trades ultra-low static power for 32-bit compute headroom and no LCD - making each optimal for distinct display-integrated vs. compute-intense vs. footprint-limited use cases.

Availability

STM8L152C6T6TR is available at Aetrix Electronics and suitable for smart utility meters, portable medical monitors, industrial sensor nodes, and home automation controllers requiring stable component supply across extended product lifecycles.

Supply support for STM8L152C6T6TR 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 management ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM8L ultra-low-power MCU family targets energy-sensitive applications such as battery-powered instrumentation, wearables, and smart meters - emphasizing sub-µA sleep modes, integrated peripherals, and long-term supply assurance.

FAQ

What is the maximum operating frequency and core architecture of the STM8L152C6T6TR?

The STM8L152C6T6TR features an 8-bit STM8 core with Harvard architecture and 3-stage pipeline, achieving up to 16 MIPS at 16 MHz maximum clock frequency. It uses a CISC instruction set with 16-bit addressing, and supports direct, indexed, and indirect addressing modes. The core includes a hardware stack pointer and nested interrupt controller supporting up to 40 external sources.

Does the STM8L152C6T6TR support capacitive touch sensing, and how many channels are available?

Yes, the STM8L152C6T6TR integrates a dedicated Capacitive Sensing (CTS) peripheral supporting up to 16 channels. It enables touchkey, proximity, linear touch, and rotary touch applications without external components. Channel configuration is software-controlled via dedicated registers, and sensing operates concurrently with low-power modes - including wake-up from Low Power Wait or Halt upon touch event detection.

What LCD capabilities does the STM8L152C6T6TR provide, and is external bias required?

The STM8L152C6T6TR includes a built-in LCD controller supporting up to 4 commons × 28 segments (112 segments total), with integrated step-up converter and voltage follower. This eliminates the need for external bias circuitry or external LCD drivers. Contrast is adjustable via software-controlled voltage division, and the controller supports static, 2-, 3-, and 4-mux configurations with automatic refresh and blinking control.

How is debug and programming performed on the STM8L152C6T6TR?

Debug and programming use the Single-Wire Interface Module (SWIM), a proprietary 1-pin interface requiring only the SWIM pin and GND. It supports non-intrusive in-circuit debugging, real-time variable monitoring, flash programming, and option byte configuration - all without halting CPU execution. SWIM operates at VDD levels down to 1.65 V and is compatible with ST-LINK/V2 and third-party debug probes.