STM8L151C6T3 - 8-bit 16MHz 32KB Flash Ultra-Low MCU | STMicroelectronics
N.º de pieza: STM8L151C6T3 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.93 | $2,93 |
| 10 | $2.64 | $26,40 |
| 100 | $2.35 | $235,00 |
| 500 | $2.1 | $1.050,00 |
| 1.000 | $1.88 | $1.880,00 |
| 3.000 | $1.65 | $4.950,00 |
STM8L151C6T3 Descripción general
An ultra-low-power microcontroller (MCU) is a class of microcontroller optimized to minimize active and standby current consumption through aggressive clock gating, multiple low-power modes (Halt, Active-Halt, Wait, Run), and the ability to operate from sub-3V rails. STM8L MCUs sit within ST's broader portfolio that also includes the higher-integration STM8L152/4/5/8 lines which add LCD drivers, AES, and capacitive-sensing peripherals. The STM8L151C6T3 specifically uses a Harvard-architecture STM8S core with a 3-stage instruction pipeline, peripherals tied through a peripheral interconnect that allows independent clocking.
Key features of the STM8L151C6T3 include a true 4.0 uA low-power Run mode, 1.45 uA Halt mode with RTC active, 350 nA Halt-without-RTC mode, integrated RTC, two 16-bit timers, one 8-bit timer, 12-bit ADC with up to 1 Msps, and 41 GPIOs across two ports. The device also includes an integrated LCD voltage booster option on the wider STM8L152 family, plus USART, SPI, and I2C peripherals for serial connectivity.
Architecturally the STM8L151C6T3 uses the STM8 CISC instruction set with 16-bit instruction words, a 16-bit program counter, and a rich register file that lets the compiler generate compact code. Up to 32 MIPS at 16MHz, integrated clock tree with internal 16MHz HSI, and optional external crystal make it suitable for sensor hubs that wake periodically to read sensor data and return to Halt. The 32KB Flash supports in-application programming (IAP) over I2C/SPI/UART, allowing firmware upgrades without exposing the SWIM debug interface.
Typical applications include battery-powered sensor nodes, wearables, electronic shelf labels, smart meters, and remote controls. Designers choose the STM8L151C6T3 when they need real EEPROM for parameter storage, robust <500 nA standby current, and a CISC core that produces dense assembly code for state machines.
When designing with this device, evaluate quiescent current per power mode against the application's duty cycle. The 48-pin LQFP requires a 7x7mm PCB footprint with thermal pad routing guidelines per ST design guides. Use the STVP programmer and IAR/STM8 COSMIC toolchains for firmware development.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone - particularly cross-family guidance for migration to STM32L0 when more MIPS or peripherals are required.
Alternativas directas para STM8L151C6T3 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con STM8L151C6T3 (mismo factor de forma y huella) — difiere en Core, Timers, Operating Temperature, Data EEPROM, Package.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
STM8L151C6T6
✅ Sustitución directa✓ En stock
$2.19 / unidad
Ver hoja de datos →STM8L151C8T6
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
STM8L151C6T3TR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
STM8L151C4T6
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
STM8L152C6T6
✅ Sustitución directa✓ En stock
$2.19 / unidad
Ver hoja de datos →STM8L151C6T3 Valores máximos y características eléctricas
| Core | STM8 (8-bit CISC) |
| Maximum Clock Speed | 16 MHz |
| Program Memory (Flash) | 32 KB |
| Data EEPROM | 1 KB (true EEPROM) |
| RAM | 2 KB |
| Tensión de alimentación | 1.8 V to 3.6 V |
| GPIO Count | 41 |
| ADC | 12-bit, up to 1 Msps |
| Timers | 2x 16-bit, 1x 8-bit |
| RTC | Yes, with calendar |
| Communication | USART, SPI, I2C |
| Run Mode Current | 4.0 uA typical |
| Halt Mode Current (with RTC) | 1.45 uA typical |
| Halt Mode Current (no RTC) | 350 nA typical |
| Encapsulado | 48-LQFP (7x7 mm) |
| Temperatura de funcionamiento | -40 C to +85 C (industrial) |
| Estado RoHS | Compliant |
| Tipo de montaje | Surface Mount |
Configuración de pines de STM8L151C6T3
| Pin 1 | OSC_IN — External clock input |
| Pin 2 | OSC_OUT — External clock output |
| Pin 3 | NRST — Reset (active low, shared with SWIM) |
| Pin 4 | PA0 — Port A bit 0 (GPIO/ADC/WKUP) |
| Pin 5 | PA1 — Port A bit 1 (GPIO/ADC) |
| Pin 6 | PA2 — Port A bit 2 (GPIO/USART1_TX) |
| Pin 7 | PA3 — Port A bit 3 (GPIO/USART1_RX) |
| Pin 8 | VSS — Digital ground |
| Pin 9 | VDD — Digital supply (1.8-3.6V) |
| Pin 10 | PA4 — Port A bit 4 (GPIO/SPI_NSS) |
| Pin 11 | PA5 — Port A bit 5 (GPIO/SPI_SCK) |
| Pin 12 | PA6 — Port A bit 6 (GPIO/SPI_MISO) |
| Pin 13 | PA7 — Port A bit 7 (GPIO/SPI_MOSI) |
| Pin 14 | PB0 — Port B bit 0 (GPIO/ADC) |
| Pin 15 | PB1 — Port B bit 1 (GPIO/ADC) |
| Pin 16 | PB2 — Port B bit 2 (GPIO/ADC) |
| Pin 17 | PB3 — Port B bit 3 (GPIO/ADC) |
| Pin 18 | PB4 — Port B bit 4 (GPIO/I2C_SDA) |
| Pin 19 | PB5 — Port B bit 5 (GPIO/I2C_SCL) |
| Pin 20 | PB6 — Port B bit 6 (GPIO/TIM1_CH1) |
| Pin 21 | PB7 — Port B bit 7 (GPIO/TIM1_CH2) |
| Pin 22 | PC0 — Port C bit 0 (GPIO) |
| Pin 23 | PC1 — Port C bit 1 (GPIO) |
| Pin 24 | PC2 — Port C bit 2 (GPIO) |
| Pin 25 | PC3 — Port C bit 3 (GPIO) |
| Pin 26 | PC4 — Port C bit 4 (GPIO) |
| Pin 27 | PC5 — Port C bit 5 (GPIO) |
| Pin 28 | PC6 — Port C bit 6 (GPIO) |
| Pin 29 | PC7 — Port C bit 7 (GPIO) |
| Pin 30 | PD0 — Port D bit 0 (GPIO) |
| Pin 31 | PD1 — Port D bit 1 (GPIO) |
| Pin 32 | PD2 — Port D bit 2 (GPIO) |
| Pin 33 | PD3 — Port D bit 3 (GPIO) |
| Pin 34 | PD4 — Port D bit 4 (GPIO) |
| Pin 35 | PD5 — Port D bit 5 (GPIO) |
| Pin 36 | PD6 — Port D bit 6 (GPIO) |
| Pin 37 | PD7 — Port D bit 7 (GPIO) |
| Pin 38 | PE0 — Port E bit 0 (GPIO) |
| Pin 39 | PE1 — Port E bit 1 (GPIO) |
| Pin 40 | VSS — Digital ground |
| Pin 41 | VDD — Digital supply (1.8-3.6V) |
| Pin 42 | PE2 — Port E bit 2 (GPIO) |
| Pin 43 | PE3 — Port E bit 3 (GPIO) |
| Pin 44 | PE4 — Port E bit 4 (GPIO) |
| Pin 45 | PE5 — Port E bit 5 (GPIO) |
| Pin 46 | PF0 — Port F bit 0 (GPIO) |
| Pin 47 | VREF+ — ADC reference voltage |
| Pin 48 | VSS — Digital ground (return) |
Aplicaciones típicas
STM8L151C6T3 es adecuado para 6 aplicacións: Battery-Powered Wireless Sensor Node, Electronic Shelf Label (ESL) Controller, Smart Meter Data Logger, Wearable Fitness Tracker / Activity Monitor, Industrial Remote Control / HMI Pushbutton, Home Appliance Sensor Hub.
Battery-Powered Wireless Sensor Node
The STM8L151C6T3 fits battery-powered wireless sensor nodes because its 350 nA Halt-mode current (without RTC) and 1.45 uA with RTC active enable multi-year operation from a CR2032 coin cell. With 32KB of Flash and 2KB of RAM, it can host a low-rate sensor stack (temperature, humidity, or motion) plus a small MAC layer for sub-GHz transceivers. The 12-bit ADC with up to 1 Msps supports direct interfacing with analog sensors without an external ADC.
Recomendado
Electronic Shelf Label (ESL) Controller
The STM8L151C6T3 is well-suited to electronic shelf label hub and end-node applications thanks to its 32KB Flash (sufficient for ESL display drivers and RF protocol state machines), 1KB true EEPROM (used for storing label addresses and display IDs), and 350 nA standby current. The 48-LQFP package fits the ESL module footprint, and its USART/SPI/I2C peripherals interface directly to e-paper display drivers and 2.4 GHz RF front-ends.
Recomendado
Smart Meter Data Logger
The STM8L151C6T3 suits smart meter sub-metering and data logging because of its 1KB true EEPROM (for non-volatile kWh history storage), integrated RTC with calendar (for time-stamped measurements), and ultra-low-power modes that keep the meter accurate on battery backup during outages. The 12-bit ADC accurately reads current-sensor signals, while the 32KB Flash holds metering algorithms and tamper detection logic.
Recomendado
Wearable Fitness Tracker / Activity Monitor
The STM8L151C6T3 works in wearable fitness trackers because of its <500 nA standby current, 48-pin LQFP compact footprint, and ability to wake from Halt via RTC interrupts for periodic step-count sampling. With 32KB Flash and 2KB RAM, it fits simple pedometer algorithms and BLE beacon state machines. The 12-bit ADC reads battery voltage and motion-sensor signals; I2C ports connect to 6-axis IMUs.
Recomendado
Industrial Remote Control / HMI Pushbutton
The STM8L151C6T3 supports industrial remote controls and HMI pushbutton modules because its 41 GPIO pins handle matrix keypads and LED indicators, the 16-bit timers generate PWM for LED dimming and buzzer tones, and its 1.8-3.6V supply runs directly from two AA cells. Its ultra-low Halt-mode current extends battery life to multi-year spans typical of remote-control applications.
Recomendado
Home Appliance Sensor Hub
The STM8L151C6T3 is appropriate for home appliance sensor hubs (e.g., refrigerator temperature controllers, washing-machine sensor interfaces) because its true 1KB EEPROM stores calibration data across firmware updates, its 12-bit ADC reads multiple thermistor inputs, and its low-power modes support continuous monitoring without significantly impacting appliance standby energy budgets. The 48-LQFP package fits standard appliance control board footprints.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para STM8L151C6T3 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | STM8L151C6T6 | STM8L151C8T6 | STM8L151C6T3TR | STM8L151C4T6 | STM8L152C6T6 |
|---|---|---|---|---|---|---|
| Package | 48-LQFP (7x7) | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Flash Memory | 32 KB | 32 KB | 64 KB | 32 KB | 16 KB | 32 KB |
| RAM | 2 KB | 2 KB | 4 KB | 2 KB | 2 KB | 2 KB |
| Operating Temperature | -40 C to +85 C | -40 C to +125 C | -40 C to +125 C | -40 C to +85 C | -40 C to +125 C | -40 C to +125 C |
| LCD Driver | No | No | No | No | No | Yes (up to 4x28 segments) |
| Cap-Sense Touch | No | No | No | No | No | Yes (S-TOUCH) |
| Unit Price (qty 1) | $2.93 | $3.05 | $3.45 | $2.93 | $2.70 | $3.30 |
| Lifecycle Status | Active | Active | Active | Active | Active | Active |
Diferenciadores clave
- True 1KB hardware EEPROM for parameter storage (frente a STM8L152C6T6)
- Lowest-cost entry into STM8L family with LCD removed (frente a STM8L152C6T6)
- Industrial temperature range optimized for consumer/industrial sensors (frente a STM8L151C6T6)
Notas de diseño
Estimated: for a sensor application waking once per second from Halt with RTC running (1.45 uA) and reading a sensor for 5 ms at 4 mA active current, average current is approximately (1.45 uA * 0.995) + (4 mA * 0.005) = ~21 uA. A CR2032 cell (220 mAh) would last approximately 10,950 hours (~1.25 years) of continuous operation. For multi-year battery life, designers should minimize wake duration and use Halt-Mode-without-RTC (350 nA) when calendar time is not needed.
Place a 100 nF decoupling capacitor on each VDD/VSS pair as close to the pins as possible (less than 3 mm). Add a 10 uF bulk capacitor on the main VDD rail to handle transient loads during Halt-to-Run transitions. The VREF+ pin requires a 100 nF plus 1 uF low-ESR ceramic capacitor for ADC accuracy. Use a continuous ground plane on layer 2 to minimize return-current loops.
Do not operate the ADC while the internal voltage reference is disabled; the readings will be incorrect. Do not exceed the absolute maximum VDD of 4.0 V. SWIM programming requires the NRST pin to be driven low by the programmer during programming - the pin cannot be reused as a normal GPIO without careful timing. When using Halt mode, verify that all peripherals are properly clock-gated to achieve the lowest quiescent current; leave the AWU (auto-wakeup) peripheral enabled only when needed.
Información de cumplimiento
RoHS compliant and lead-free matte-tin finish per STMicroelectronics product page. REACH compliant per EU SVHC declarations. Not AEC-Q100 qualified (industrial grade only); for automotive applications, consider the STM8AF series.
