STM8L151R8T6 - 16MHz 8-Bit 64KB Flash MCU | STMicroelectronics
N.º de pieza: STM8L151R8T6 ✓ ActivoSTM8L151R8T6 Descripción general
STM8L microcontrollers belong to the 8-bit microcontroller and energy-management MCU hierarchy, combining an enhanced STM8 CPU core with low-power operating modes, LCD-oriented peripherals and integrated analog resources. Their role in a system is to execute local control and measurement functions while keeping current consumption low enough for long operating life from a compact energy source.
Key characteristics include 64 KB of embedded Flash, 4 KB of SRAM, a maximum clock frequency of 16 MHz and a 64-LQFP package. The STM8L151R8 family is positioned for applications requiring a balance of processing capability, low standby consumption and compact package size. The provided manufacturer and distributor references identify the device as part of the STM8L151x6/8 ultra-low-power family, which also includes STM8L152 and STM8L162 variants.
The STM8L151R8T6 is suitable for energy-harvesting meters, industrial sensor nodes, wearable accessories, low-power control panels and small portable instruments. Because the device supports low-voltage operation and an LCD-oriented feature set, it can reduce the need for external components in display-driven designs. Its 64-LQFP outline also provides more I/O than the smaller STM8L151K6 package for designs requiring multiple external connections.
When designing around this MCU, verify the exact operating voltage, pin multiplexing, clock configuration and low-power mode entry procedure against the STM8L151x6/8 datasheet. The STM8L151R8T6 is supplied in a tray-oriented ordering code, while STM8L151R8T6TR is the tape-and-reel ordering variant shown in distributor listings. The distinction between ordering formats is commercial rather than a change in the underlying device.
This page combines verified manufacturer and distributor information with practical package, sourcing and design guidance. It also highlights the limits of the available data: detailed pin names, electrical timing curves, lifecycle declarations and volume pricing must be confirmed from the current manufacturer datasheet and authorized distributor inventory before a production release.
Alternativas directas para STM8L151R8T6 — 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 STM8L151R8T6 (mismo factor de forma y huella) — difiere en LCD Driver, Number of I/O Pins, Package, RAM Size, Supply Voltage.
STM8L152R8T6
✅ Sustitución directaConsulte el precio
Ver hoja de datos →STM8L152R6T6
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
STM8L151R8T6TR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
STM8L151R8T6 Valores máximos y características eléctricas
| Product Type | 8-bit ultra-low-power microcontroller |
| Series | STM8L EnergyLite |
| Core Frequency | 16 MHz maximum |
| Flash Memory | 64 KB (64K x 8) |
| RAM Memory | 4 KB |
| Tensión de alimentación | 1.8 V, 2.5 V or 3.3 V |
| Architecture | STM8 8-bit CISC |
| Encapsulado | 64-LQFP (10 x 10 mm) |
| Recuento de pines | 64 pins |
| Tipo de montaje | Surface Mount |
| Product Family | STM8L151x6/8 |
| Family Compatibility | Pin-to-pin, software and feature compatible within STM8L151x6/8 family |
| Ordering Code | STM8L151R8T6 - tray |
| Tape-and-Reel Variant | STM8L151R8T6TR |
| Price | From USD 1.6557 as of 2026-10-30 |
Guía de configuración de pines de STM8L151R8T6 64-lqfp (10 x 10 mm)
Configuración de pines para STM8L151R8T6 (encapsulado 64-lqfp (10 x 10 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para STM8L151R8T6.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
STM8L151R8T6 es adecuado para 6 aplicacións: Battery-Powered Environmental Sensor Node, Low-Power Metering and Utility Display, Industrial Control and Actuator Interface, Portable Health and Wellness Wearable, Smart Home Sensor and Actuator Node, Compact Data Acquisition and Monitoring Unit.
Battery-Powered Environmental Sensor Node
The STM8L151R8T6 fits compact environmental monitoring nodes that combine a sensor interface with long idle periods between measurements. Its 16 MHz STM8 CPU provides enough throughput for local filtering and data packaging, while the 4 KB RAM and 64 KB Flash support application firmware and a small data buffer. The 1.8 V, 2.5 V or 3.3 V operating choices allow alignment with the sensor and regulator design. Use a low-power mode between readings and size the energy budget around regulator quiescent current, wake-up timing and radio activity. Because the detailed peripheral assignments are not included in the supplied snippets, the 64-LQFP pin map must be checked against the chosen ADC channels, I2C or SPI bus, and sensor interrupts.
Recomendado
Low-Power Metering and Utility Display
The STM8L151R8T6 is appropriate for metering products that periodically measure a physical quantity and update a local LCD. Its LCD-oriented STM8L151 feature set and 64 KB of Flash support display drivers, calibration tables and measurement routines, while the 64-LQFP package offers ample I/O for segment, button and communications connections. The 1.8 V operating option can reduce both MCU and display energy when the design uses a compatible low-voltage LCD. Engineering focus should remain on LCD drive voltage, glass requirements, debounce strategy and average current. Verify display timing and low-power wake behavior in the manufacturer datasheet rather than inferring them from the family summary.
Recomendado
Industrial Control and Actuator Interface
The STM8L151R8T6 can serve as the local controller in compact industrial equipment where it must read switches, drive indicators and supervise actuators while consuming little standby power. Its 64-LQFP package provides more GPIO opportunities than smaller STM8L151 packages, and the 64 KB Flash provides space for state machines, calibration and communication protocols. The design should separate logic-level control from inductive, high-voltage or high-current loads. Use transistors, isolation or protection networks as required and confirm every unused pin state during validation. The MCU itself is not a substitute for functional-safety isolation or an appropriate power driver.
Recomendado
Portable Health and Wellness Wearable
The STM8L151R8T6 supports compact wearable controllers that sample a sensor, perform simple signal conditioning and maintain a low-duty-cycle user interface. The 16 MHz core is appropriate for modest control tasks without introducing a higher-power processor, and the 64 KB Flash accommodates drivers and application logic. Its low-voltage operating choices suit coin-cell or energy-harvesting power architectures, although actual runtime depends on the selected regulator and sensor load. A wearable design should also evaluate motion wake-up sources, button handling, radio coexistence and electrostatic-discharge exposure. Use the manufacturer low-power-mode procedure to avoid accidental timer or peripheral operation that would materially increase sleep current.
Recomendado
Smart Home Sensor and Actuator Node
The STM8L151R8T6 is appropriate for a smart-home endpoint that senses an environmental or occupancy condition and drives a relay, indicator or external interface. The STM8L ultra-low-power architecture helps limit standby consumption, while 64 KB of Flash and 4 KB of RAM provide enough memory for protocol stacks, debounce logic and local state. In a wired node, the MCU can control I2C or SPI peripherals; in a wireless node, it can act as a low-power host while a separate radio handles the air interface. Relays and mains-connected circuits require appropriate isolation, relay drivers and safety spacing, and the STM8L151R8T6 should never be connected directly to mains voltage.
Recomendado
Compact Data Acquisition and Monitoring Unit
The STM8L151R8T6 can act as the local acquisition controller in a small monitoring unit that periodically reads analog or digital sensors, validates readings and stores or forwards results. The 16 MHz core supports responsive control, the 4 KB RAM accommodates buffered samples and the 64 KB Flash provides room for protocol handlers and configuration data. Its 64-LQFP package offers multiple I/O for channels, status indicators and communications. Design the analog front end independently so that sensor noise, grounding and filtering do not compromise MCU accuracy. Confirm ADC characteristics, reference behavior and peripheral assignments in the STM8L151x6/8 datasheet, and use the provided alternatives only after reviewing pin, peripheral and firmware compatibility.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para STM8L151R8T6 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | STM8L152R8T6 | STM8L152R6T6 | STM8L151R8T6TR |
|---|---|---|---|---|
| Package | 64-LQFP (10 x 10 mm) | 64-LQFP - same family package | 64-LQFP - same family package | 64-LQFP (10 x 10 mm) - same device |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Line | STM8L151 | STM8L152 | STM8L152 | STM8L151 |
| Family Compatibility | Pin-to-pin, software and feature compatible ultra-low-power STM8L family | Compatible STM8L151x6/8, STM8L152x6/8 and STM8L162x8 family | Compatible STM8L151x6/8, STM8L152x6/8 and STM8L162x8 family | Same STM8L151R8 device |
Diferenciadores clave
- Closest verified same-device procurement option (frente a STM8L151R8T6TR)
- Expanded-family option without changing the family footprint (frente a STM8L152R8T6)
- Lower-memory selection path for code-constrained designs (frente a STM8L152R6T6)
Notas de diseño
Select the supply range from the manufacturer operating table rather than assuming that every peripheral works at the lowest nominal voltage. For a 1.8 V design, verify clock limits, ADC performance and analog reference requirements. The MCU may support low-power modes, but the system-level sleep current also includes the regulator, pull resistors, sensors and any radio. Measure current with the MCU in the intended idle state and with all external loads disconnected before calculating battery life.
Place decoupling capacitors close to the device power pins and route each supply connection with a short, low-inductance path. Keep analog, oscillator and sensitive sensor inputs away from switching-node and high-current return paths. The 64-LQFP footprint leaves adequate routing density, but pin multiplexing still determines which signals can coexist. Review the package drawing, exposed thermal requirements and assembly-land pattern in the STM8L151x6/8 datasheet before releasing artwork.
Do not substitute STM8L151R8T6 with STM8L152R8T6 solely because the packages match. The manufacturer describes family-level pin, software and feature compatibility, but the STM8L152 line provides additional peripherals and may create different boot, interrupt or resource-allocation behavior. Check the exact peripheral list, clock tree, pin table and firmware project settings. Also confirm whether the receiving line accepts the tape-and-reel ordering code or requires the tray code.
Follow the manufacturer's crystal, ceramic-resonator and internal-clock layout guidance, keeping oscillator connections short and away from fast-switching nodes. Confirm whether a stable external clock, crystal or internal oscillator source is used, and account for startup and stabilization time when the firmware changes clock sources. Unused inputs should be configured according to the datasheet rather than left floating. These steps matter most in low-power designs because clock transitions and debug interfaces can dominate standby measurements.
Información de cumplimiento
The supplied product snippets do not explicitly state RoHS, REACH, lead-free, halogen-free or conflict-minerals status. AEC-Q100 is not applicable to this general-purpose microcontroller ordering code; an automotive-qualified suffix would be required. Verify current compliance declarations on the STMicroelectronics product page and the manufacturer material declaration.
