STM8L151R8T3 - 16MHz 64KB MCU | STMicroelectronics
Référence : STM8L151R8T3 ✓ ActifSTM8L151R8T3 Présentation
An ultra-low-power microcontroller is an integrated circuit optimized to minimize energy consumption while executing embedded control, measurement, communications, and interface tasks. The STM8L15xx family belongs to the STM8L EnergyLite architecture and is designed for battery-operated sensors, compact industrial controls, portable instruments, and connected products that must retain processing capability while spending little time in active or standby modes.
The STM8L151R8T3 combines a maximum 16 MHz enhanced STM8 CPU core with 64 KB Flash and 4 KB EEPROM. Its 12-bit ADC supports embedded analog measurement, while the high I/O count allows multiple digital inputs, outputs, communications interfaces, and external peripheral connections. The 1.8 V to 3.6 V operating range accommodates low-voltage sensor, metering, industrial, and consumer equipment.
The LQFP-64 package provides 54 I/O positions and a 10 mm by 10 mm body, making it practical for prototype boards and multiline industrial-control products. Its performance profile is suited to real-time control loops that do not require a 32-bit Cortex-M core but benefit from fast 8-bit execution, embedded nonvolatile data storage, and a broad set of GPIO resources. Integrated EEPROM can retain configuration and calibration values without occupying external Flash space.
Typical uses include low-energy environmental monitoring, compact motor and actuator controllers, industrial sensor nodes, portable measurement instruments, access-control equipment, and low-power data-acquisition systems. In each case, the device can combine analog sensing and control logic in a single package while supporting multiple digital interfaces and serial communications.
PCB design should preserve clean supply distribution, short analog-signal paths, and stable grounding around the ADC inputs. Place decoupling capacitors close to the supply pins, route high-current or switching signals away from sensitive analog traces, and consult the STM8L151R8 pin and package documentation before assigning every LQFP position. Verify the required clock, reset, programming, and peripheral functions against the device pin table.
This product page combines manufacturer and distributor specifications, practical application guidance, verified lifecycle information, and engineering-focused selection criteria. It also distinguishes exact ordering information from broader series-level claims so that engineers can assess the STM8L151R8T3 for low-power embedded designs without relying on a simple catalog summary.
Alternatives de remplacement direct pour STM8L151R8T3 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec STM8L151R8T3 (même facteur de forme et même empreinte) — différant par CPU Architecture, Program Memory Type.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesSTM8L151R8T3 Valeurs maximales et caractéristiques électriques
| Product Type | 8-bit ultra-low-power microcontroller (MCU) |
| CPU Architecture | 8-bit STM8 CPU |
| Maximum CPU Frequency | 16 MHz |
| Program Memory Type | Embedded Flash |
| Flash Memory Capacity | 64 KB |
| Flash Organization | 64K x 8 bits |
| EEPROM | 4 KB integrated EEPROM |
| Supply Voltage Range | 1.8 V to 3.6 V |
| ADC Resolution | 12 bits |
| I/O Port Count | 54 I/O ports |
| Boîtier | 64-pin LQFP |
| Package Dimensions | 10 mm x 10 mm |
| Type de montage | Surface mount |
| Statut du cycle de vie | Active |
| Product Family | STM8L EnergyLite |
| Manufacturer Minimum Order Quantity | 960 units |
Guide de configuration des broches du STM8L151R8T3 10 mm x 10 mm
Configuration des broches du STM8L151R8T3 (boîtier 10 mm x 10 mm). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour STM8L151R8T3.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
STM8L151R8T3 convient pour 6 applications: Battery-Powered Environmental Sensors, Industrial Sensor and Control Nodes, Portable Measurement Instruments, Low-Power Motor and Actuator Control, Connected Low-Power Data Acquisition, Local Audio Signal Control.
Battery-Powered Environmental Sensors
The STM8L151R8T3 fits compact environmental monitoring because it combines a 12-bit ADC with an ultra-low-power 8-bit CPU in a 64-pin LQFP package. The 1.8 V to 3.6 V operating range supports low-voltage sensor systems, while 54 I/O ports leave room for multiple digital inputs, alarms, and communications. A low-duty-cycle firmware design can wake the MCU to acquire measurements and return it to a low-power state between samples. The 4 KB EEPROM is useful for retaining calibration coefficients and configuration values, although update endurance must be checked for high-frequency logging.
Recommandé
Industrial Sensor and Control Nodes
The STM8L151R8T3 is well suited to distributed industrial sensing and control nodes that need substantial GPIO capacity without a 32-bit processor. Its 54 I/O ports can support digital sensors, relay outputs, status indicators, and local interlocks, while the 12-bit ADC handles analog process inputs. Operating from 1.8 V to 3.6 V simplifies integration with low-voltage sensor buses and regulated control rails. The 64-pin LQFP provides enough pin density for isolated communication, expansion connectors, and separate analog routing. Production designs should confirm the selected temperature grade and validate EMC behavior around the board’s switching nodes.
Recommandé
Portable Measurement Instruments
The STM8L151R8T3 can serve as the control and signal-conditioning microcontroller in a portable measurement instrument where low voltage and compactness are important. Its 16 MHz 8-bit core handles menu logic, calibration, and instrument control, while the 12-bit ADC performs local analog conversions. Sixty-four Flash kilobytes provides room for application firmware, and the integrated EEPROM can retain user settings and calibration tables. The broad GPIO count simplifies support for displays, buttons, status LEDs, and data interfaces. For accurate measurements, use careful analog layout, calibrated references, and firmware that averages or filters converter results as appropriate.
Recommandé
Low-Power Motor and Actuator Control
The STM8L151R8T3 is suitable for small motor, valve, and actuator controllers that combine timed outputs with local sensing. Its 16 MHz CPU provides deterministic control-loop execution, while 54 I/O ports simplify connections to limit switches, position sensors, drivers, and status indicators. The 12-bit ADC can monitor current or position-related analog signals where the system permits. Operation down to 1.8 V supports compact battery-powered equipment, but motor transients require careful filtering, grounding, and separation between noisy drive paths and control signals. Select external driver components for the motor voltage and current rather than driving loads directly from MCU GPIOs.
Recommandé
Connected Low-Power Data Acquisition
The STM8L151R8T3 can form the acquisition and control core of a connected, low-power data-acquisition module. Its 64 KB Flash accommodates protocol and acquisition firmware, while 4 KB EEPROM stores calibration and endpoint settings. The 12-bit ADC handles moderate-resolution sensor inputs and 54 I/O ports provide flexibility for status signals and peripheral interfaces. Its 1.8 V minimum supply supports energy-conscious designs. For remote sensor nodes, firmware should use the MCU’s low-power operating modes between acquisition bursts, and the board should isolate radio or communications circuitry to minimize digital noise coupling into analog inputs.
Recommandé
Local Audio Signal Control
The STM8L151R8T3 can act as the supervisory controller in a compact audio product handling mode selection, button input, status feedback, and volume-related control. Its numerous GPIO pins allow direct connection to codecs, display interfaces, and digital potentiometers, while the 12-bit ADC may support simple level monitoring. The STM8 CPU handles control tasks without occupying the resources of a larger application processor. Keep analog audio routing separate from MCU traces and bypass the MCU supply locally. For higher-fidelity or multichannel audio conversion, pair the controller with a dedicated codec and verify the required clock and interface timing.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour STM8L151R8T3 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Package | 64-pin LQFP, 10 mm x 10 mm |
| Brand | STMicroelectronics |
| CPU Architecture | 8-bit STM8 |
| Maximum CPU Frequency | 16 MHz |
| Flash Memory | 64 KB |
| Integrated EEPROM | 4 KB |
| Supply Voltage Range | 1.8 V to 3.6 V |
| ADC Resolution | 12 bits |
| I/O Port Count | 54 |
| Lifecycle Status | Active |
Principaux différenciateurs
- Substantial GPIO capacity in a compact 10 mm by 10 mm LQFP (vs STM8L152K6U6)
- Integrated nonvolatile data memory (vs STM32L051K8T6)
- Higher Flash capacity in the STM8L EnergyLite family (vs STM8L152K6U6)
- Dedicated 12-bit conversion resource (vs STM32L051K8T6)
Notes de conception
Place the device-specific input and output decoupling capacitors immediately adjacent to their corresponding power pins, and keep the return path to the ground plane continuous. Because the STM8L151R8T3 supports analog measurement, route sensitive ADC inputs away from clocks, switching-node connections, and high-current return paths. Use the manufacturer LQFP land pattern and maintain consistent solder-paste deposition across all 64 fine-pitch leads to reduce assembly defects.
Design the 1.8 V to 3.6 V supply so it remains within the limits of every operating mode, including startup and maximum CPU frequency. Check analog and digital supply requirements in the manufacturer electrical tables before assuming that one regulator can serve all pins. For low-power operation, use the energy-saving modes and peripherals supported by the STM8L architecture, then measure average current across sleep, wake, conversion, and communications intervals to establish a realistic battery budget.
Assign analog, digital, reset, clock, and programming functions from the official STM8L151R8 pin table rather than from a generic 64-pin LQFP drawing. Keep the 12-bit ADC input traces short, isolate them from switching signals, and use a quiet reference and ground arrangement when measuring small signals. The 54 available I/O ports simplify pin allocation, but a successful layout still requires deliberate grouping of sensitive analog channels and power-distribution pins.
Do not treat the STM8L151R8T3 and similarly packaged STM8L devices as interchangeable solely because their bodies share the same dimensions. Verify pin numbers, analog functions, reset behavior, clock sources, programming interfaces, and peripheral mapping for every proposed substitution. Likewise, do not infer automotive qualification or an extended temperature range from the STM8L family name; select the exact ordering code whose grade matches the deployment environment.
Informations de conformité
The manufacturer product and distributor records identify the device as active but do not state the requested environmental, automotive, or material-compliance classifications. No assumption was made about these requirements.
