STMicroelectronics

STM8L151F3P3 - 16MHz 8KB Flash MCU | STMicroelectronics

Référence : STM8L151F3P3 ✓ Actif
En stock Expédié sous 1 à 3 jours ouvrés
1.8 V to 3.6 V Vdss 20-pin TSSOP Package 16 MHz Speed 8 KB (8K x 8) Memory
À partir de $12.5 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-10-22
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Qté Prix unitaire Total
1 $18.0667 $18,07
10 $17.5 $175,00
100 $15.8 $1 580,00
500 $13.9 $6 950,00
1 000 $12.5 $12 500,00
ℹ️ Tous les prix sont en USD

STM8L151F3P3 Présentation

The STMicroelectronics STM8L151F3P3 is an 8-bit ultra-low-power STM8L EnergyLite microcontroller with a 16 MHz enhanced STM8 CPU core, 8 KB Flash memory, and a 20-pin TSSOP package. Its headline specifications are 16 MHz operation, 8 KB Flash memory, and a 1.8 V to 3.6 V supply range, making it suitable for compact, battery-operated embedded systems.

What is an ultra-low-power microcontroller? An MCU integrates a processor, programmable memory, peripherals, and I/O on one semiconductor device. The STM8L family is designed for energy-efficient embedded control, where the system may spend substantial time in low-power states between sensor readings, user actions, or communications. In the hierarchy of electronic components, an MCU is a semiconductor, a microcontroller, and an embedded processing device used for control and automation.

The verified device information identifies an enhanced STM8 CPU core capable of up to 16 MIPS at 16 MHz, 8 KB Flash organized as 8K x 8, and 1 KB of RAM as indicated by the comparison data. The 20-pin TSSOP package supports surface-mount assembly and is specified for an operating supply of 1.8 V to 3.6 V. The MCU is positioned for low-power embedded control rather than high-performance computing, providing a balanced combination of processing speed, memory, and compact packaging.

The STM8L151F3P3 can be used in sensor nodes, battery-powered instruments, simple industrial controls, consumer accessories, and low-power monitoring systems. Its 8-bit architecture is appropriate for sequential control, parameter reading, state management, and communication tasks where application complexity does not require a larger processor. Its TSSOP-20 package is also useful when a design needs a modest pin count and a conventional leaded surface-mount footprint.

When designing a board around the STM8L151F3P3, verify the exact pin assignments and peripheral multiplexing in the manufacturer datasheet before finalizing the PCB. Provide stable decoupling near the power pins, confirm the clock and reset requirements, and account for the 1.8 V to 3.6 V supply range. Firmware should also be tested across the intended temperature, voltage, and low-power operating conditions.

This product page combines the verified manufacturer and distributor information with practical sourcing, comparison, and design guidance. Pricing and availability should be checked with authorized distributors, while the manufacturer datasheet remains the controlling reference for electrical limits, pinout, memory behavior, and peripheral operation.

Alternatives de remplacement direct pour STM8L151F3P3 — 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 STM8L151F3P3 (même facteur de forme et même empreinte) — différant par RoHS Status, Communication Interfaces, Core, Data EEPROM, Package.

STMicroelectronics
RoHS Status: Compliant
Communication Interfaces: SPI, I2C, UART
Core: STM8
Comparer avec STM8L151F3P3 →
STMicroelectronics
RoHS Status: Yes
Data EEPROM: Up to 256 bytes
Comparer avec STM8L151F3P3 →
STMicroelectronics
RoHS Status: Compliant
Communication Interfaces: UART, SPI, I2C
Core: STM8 8-bit
Comparer avec STM8L151F3P3 →
STMicroelectronics
Communication Interfaces: UART, SPI, I²C
Core: STM8 8-bit (Harvard architecture)
Data EEPROM: 640 B
Comparer avec STM8L151F3P3 →

Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :

STM8L101F3P3

✅ Remplacement direct
📦 20-pin TSSOP
Related STM8 8-bit MCU with the same 20-pin TSSOP format and 8 KB Flash description; pinout, supply, RAM, and peripheral compatibility remain unverified

📋 Alternative de référence (hors catalogue)

STM8L151F3P6

✅ Remplacement direct
STMicroelectronics
📦 20-pin TSSOP
8-bit ultra-low-power microcontroller · Enhanced STM8 CISC core · 16 MHz · 16 MIPS at 16 MHz · 8 KB · 8K x 8 · Up to 256 bytes · 1.8 V to 3.6 V

✓ En stock

Contactez-nous pour le prix

Voir la fiche technique →

STM8S003F3P6

✅ Remplacement direct
STMicroelectronics
📦 20-pin TSSOP
STM8 8-bit · 16 MHz · 16 MIPS · 8 KB · 1 KB · 128 bytes · 2.95 V to 5.5 V · 7

✓ En stock

$0.36 / unité

Voir la fiche technique →

STM8S103F3P6

✅ Remplacement direct
STMicroelectronics
📦 20-pin TSSOP
STM8 8-bit (Harvard architecture) · 16 MHz · 8 KB · 640 B · 1 KB · 300 k cycles · 2.95 V to 5.5 V · -40 °C to +85 °C

✓ En stock

$0.92 / unité

Voir la fiche technique →

STM8L001J3M3

✅ Remplacement direct
STMicroelectronics
📦 20-pin TSSOP
STM8 · 8-bit CISC · 16 MHz · 8 KB (8K x 8) · Flash · 1.5 KB · 2 KB · 1.8 V to 3.6 V

✓ En stock

$0.49 / unité

Voir la fiche technique →

STM8L151F3P3 Valeurs maximales et caractéristiques électriques

Product Type 8-bit ultra-low-power microcontroller
Series STM8L EnergyLite
CPU Core Enhanced STM8 core
Maximum Clock Speed 16 MHz
Maximum Processing Performance Up to 16 MIPS at 16 MHz
Flash Memory 8 KB (8K x 8)
RAM Memory 1 KB
Supply Voltage Range 1.8 V to 3.6 V
Boîtier 20-pin TSSOP
Type de montage Surface Mount
I/O Ports 41
Program Memory Type Flash
Data Memory 1 KB RAM
Nominal Supply 2.5 V or 3.3 V application supply
Lifecycle Stage Active
Statut RoHS Unknown
REACH Status Unknown
AEC-Q100 Qualification Not applicable

Guide de configuration des broches du STM8L151F3P3 20-pin tssop

Configuration des broches du STM8L151F3P3 (boîtier 20-pin tssop). 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.

Schéma de brochage du boîtier 20-pin tssop pour le STM8L151F3P3

Aucune donnée de brochage détaillée disponible pour STM8L151F3P3.

Consultez la fiche technique pour la configuration complète des broches.

Applications typiques

STM8L151F3P3 convient pour 6 applications: Battery-Powered Sensor Node, Low-Power Environmental Monitor, Battery-Powered Smart Lock, Compact Industrial Control Module, Low-Power Consumer Accessory, Low-Power Data Acquisition Front End.

🧩

Battery-Powered Sensor Node

The STM8L151F3P3 fits battery-powered sensor nodes because it combines a 16 MHz enhanced STM8 core with a 1.8 V to 3.6 V supply range and STM8L EnergyLite positioning. It can sample a sensor, apply threshold logic, and manage a low-power duty cycle without requiring a larger processor. The 8 KB Flash capacity is sufficient for compact firmware, while 1 KB RAM supports small working buffers. Designers should pair the MCU with a low-quiescent-current regulator and use the device’s low-power modes to reduce energy use between measurements.

🌐

Low-Power Environmental Monitor

For environmental monitoring, the STM8L151F3P3 can supervise periodic readings from temperature, humidity, or gas sensors and decide when to activate a communications interval. Its 8-bit architecture is appropriate for sequential acquisition and control tasks, while the 20-pin TSSOP package helps keep compact boards manageable. A key design consideration is keeping the MCU and sensor rails within the 1.8 V to 3.6 V range. Use low-leakage input protection and verify peripheral timing before entering long idle periods.

🔒

Battery-Powered Smart Lock

The STM8L151F3P3 is suitable for battery-powered access-control products such as electronic locks, keypad controllers, and compact door interfaces. The MCU can scan inputs, evaluate credentials locally, drive a display or indicator, and remain inactive between user events. The 16 MHz clock provides sufficient control headroom for debouncing and state-machine logic, while the STM8L low-power positioning can help reduce standby consumption. Validate actuator drive levels separately because the MCU should not directly supply high-current loads.

🏭

Compact Industrial Control Module

The STM8L151F3P3 can serve as the local controller in a small industrial module with pushbuttons, indicator LEDs, status inputs, and a low-speed serial interface. Its 8 KB Flash and 1 KB RAM are suitable for a focused control application rather than a large user interface or data-processing workload. The 20-pin TSSOP package is practical for compact assemblies and can coexist with external drivers when the MCU is not expected to power loads directly. Use galvanic isolation, surge protection, and proper grounding where the module connects to external wiring.

📱

Low-Power Consumer Accessory

STM8L151F3P3 is appropriate for compact consumer accessories that need local button handling, LED indication, simple timing, and battery-conscious behavior. The MCU can implement product state machines without the overhead of a high-power processor, and its 20-pin TSSOP package supports a compact assembly. Firmware can use timers and low-power states to reduce energy consumption, but the final battery-life result depends on display load, switch bounce, wireless activity, and regulator standby current. Validate the complete accessory rather than relying on MCU specifications alone.

📺

Low-Power Data Acquisition Front End

The STM8L151F3P3 can manage a small, low-rate data-acquisition front end when the application requires sequencing, filtering, thresholding, and compact storage rather than high-throughput conversion. Its 8-bit STM8 core handles control flow efficiently, and the 1.8 V to 3.6 V supply range supports low-voltage sensor systems. The 8 KB Flash limit should be checked against the acquisition firmware, while external storage can be added if required. Keep analog front-end layout separate from switching and high-current paths to reduce measurement disturbance.

What is the operating voltage of STM8L151F3P3?
The STM8L151F3P3 operates from 1.8 V to 3.6 V according to the verified STM8L151F3P3 datasheet information. This range suits low-voltage embedded systems and allows the MCU to operate near 2.5 V or 3.3 V rails. Before connecting peripherals, confirm that their voltage levels and input tolerances match the selected MCU supply, and include suitable decoupling and power-sequencing measures on the PCB.
How much Flash memory does STM8L151F3P3 have?
The STM8L151F3P3 contains 8 KB of Flash memory, organized as 8K x 8, according to the verified DigiKey product listing and related part data. This memory stores firmware and nonvolatile configuration data. Application design should reserve space for boot code, interrupt routines, drivers, and application logic, and should also follow the programming and write-protection rules in the manufacturer datasheet.
What is the maximum clock speed of STM8L151F3P3?
The STM8L151F3P3 has a maximum clock speed of 16 MHz. The manufacturer describes its enhanced STM8 CPU core as providing up to 16 MIPS at 16 MHz. The MCU therefore supports deterministic embedded control while keeping the power and memory requirements appropriate for a compact low-power design. Actual timing margins can depend on the clock source, peripheral configuration, and firmware workload.
Is STM8L151F3P3 suitable for battery-powered devices?
Yes, the STM8L151F3P3 is positioned for ultra-low-power embedded applications and is suitable for battery-operated devices when the firmware and peripherals are designed for the STM8L low-power modes. The verified part data confirms the STM8L EnergyLite family, 1.8 V to 3.6 V supply range, and 16 MHz maximum clock speed. Actual battery life depends on sleep duration, active duty cycle, sensor load, leakage, and regulator efficiency.
What package does STM8L151F3P3 use?
The STM8L151F3P3 is supplied in a 20-pin TSSOP package with surface-mount assembly. Distributor listings identify the package as 20-TSSOP, and the verified product data also identifies a 0.173 inch, 4.40 mm body width format. The package drawing, pin numbering, and exposed thermal or electrical details must be taken from the manufacturer datasheet before PCB layout is released.
How many I/O ports does STM8L151F3P3 have?
The verified specification data lists 41 I/O ports for the STM8L151F3P3. In practice, the usable I/O count and pin functions depend on the package pinout, power pins, clock pins, reset functions, debug functions, and alternate peripheral assignments. Use the manufacturer datasheet as the authoritative reference and avoid assuming that every listed port is exposed or available for user application wiring.
Where can I download the STM8L151F3P3 datasheet PDF?
The official STMicroelectronics product page for STM8L151F3 is the appropriate starting point for the manufacturer datasheet and technical documentation: https://www.st.com/en/microcontrollers-microprocessors/stm8l151f3.html. The verified distributor result from DigiKey also provides a product link at https://www.digikey.com/en/products/detail/stmicroelectronics/STM8L151F3P3/3087876. Use the manufacturer copy for pinout, electrical characteristics, memory limits, and programming details.
Where can I find the STM8L151F3P3 pinout?
The STM8L151F3P3 pinout is found in the manufacturer datasheet and package documentation for the 20-pin TSSOP. The verified distributor listing confirms the 20-pin TSSOP package, but a distributor search result is not a substitute for the official pin diagram. When locating the pinout, verify pin 1 orientation, power pins, clock pins, reset pin, ground pins, and all alternate-function assignments against the exact package drawing.
What is the price of STM8L151F3P3?
The verified LCSC listing reports a starting price of $18.0667 for STM8L151F3P3, with pricing subject to quantity, market conditions, and distributor inventory. The listed price is current information associated with the retrieved search data, not a guaranteed quotation. Check authorized distributors for the exact quantity break, tax treatment, shipping, and delivery terms before purchasing. Distributor pricing for this MPN can change without notice.
Is STM8L151F3P3 in stock?
The verified LCSC result describes STM8L151F3P3 as an in-stock component, while DigiKey, Mouser, Hotenda, Amphero, and Octopart listings provide additional sourcing channels. Stock quantity and authenticity should be confirmed directly with the distributor for the required quantity and package form. XAIPART structured availability is conservatively represented as BackOrder because the supplied data does not explicitly confirm XAIPART inventory.
What is the lead time for STM8L151F3P3?
The lead time for STM8L151F3P3 depends on distributor inventory, manufacturing status, and requested quantity. The verified distributor results confirm active distributor listings and an in-stock status at LCSC, but they do not provide a numeric lead time. For a production decision, request a written quotation and delivery commitment from the distributor, especially for volume orders or scheduled releases. XAIPART does not publish a fabricated lead-time figure here.
STM8L151F3P3 vs STM8L101F3P3 - which is better for low-power control?
STM8L151F3P3 and STM8L101F3P3 are both listed as 8-bit STMicroelectronics STM8-family MCUs in 20-pin TSSOP packaging, but the verified comparison data does not establish identical pinout or all electrical parameters. STM8L151F3P3 is the specified STM8L EnergyLite ultra-low-power part with 8 KB Flash and up to 16 MHz operation. STM8L101F3P3 should be selected only after checking the official pin, memory, peripheral, and electrical tables for the specific design.
STM8L151F3P3 vs STM8S003F3P6 - which MCU should I choose?
STM8L151F3P3 is the better fit when ultra-low-power operation and the STM8L EnergyLite positioning are priorities, while STM8S003F3P6 is a different STM8 MCU family and may have different peripheral and electrical characteristics. The verified comparison identifies both as 8-bit MCUs with 8 KB Flash, 1 KB RAM, and TSSOP-20 packaging. Because package similarity does not prove drop-in compatibility, verify pin assignments, supply limits, clocking, peripherals, and firmware requirements before selecting a substitute.
What can replace STM8L151F3P3?
A replacement must match the STM8L151F3P3 footprint, pinout, voltage range, memory, clock architecture, and required peripherals. STM8L151F3P3 alternatives identified in the verified cross-reference results include STM8L101F3P3, STM8S003F3P6, STM8S103F3P6, and STM8L151F3P6, but the supplied data does not prove that any of them is pin-to-pin drop-in compatible. Treat these as comparison candidates, not guaranteed replacements, until the manufacturer documentation is checked.
Can STM8L151F3P3 be used as a drop-in replacement for another STM8 MCU?
STM8L151F3P3 can be considered a drop-in replacement only after confirming that the existing PCB footprint, pin numbering, power pins, clock pins, reset behavior, I/O levels, and peripheral assignments are identical. The verified cross-reference data lists several STM8 MCUs with similar 20-pin TSSOP packaging, but similar package dimensions alone do not establish compatibility. Validate the replacement against the original manufacturer datasheet and test the complete board before production approval.
What are the key specifications of STM8L151F3P3 that engineers should know?
The key verified specifications are an 8-bit STM8L EnergyLite microcontroller, 16 MHz maximum clock, up to 16 MIPS processing performance, 8 KB Flash, 1 KB RAM, 1.8 V to 3.6 V supply, and a 20-pin TSSOP package. The manufacturer describes an enhanced STM8 CPU core, while distributor data identifies Flash program memory and surface-mount packaging. These values make the device suitable for compact, low-power embedded control, but final design decisions still require the official electrical and pinout documentation.
What is the best STMicroelectronics equivalent for STM8L151F3P3?
No guaranteed drop-in equivalent is established by the verified data. STM8L101F3P3 is the closest listed low-density STM8 candidate, while STM8L151F3P6 shares the STM8L151F3 family and TSSOP-20 package description. However, the supplied search results do not verify identical pin mapping, memory organization, supply behavior, and peripheral compatibility. The safest choice is STM8L151F3P3 itself unless the manufacturer data confirms a specific variant replacement.
Is STM8L151F3P3 the same as STM8L101F3P3?
No. STM8L151F3P3 is an STM8L151F3 part in the STM8L EnergyLite family, while STM8L101F3P3 belongs to a different STM8L101F3 device. The verified data confirms similar 8-bit, 8 KB Flash, and TSSOP-20 descriptions, but it does not confirm identical pinout, voltage limits, RAM, peripherals, or firmware compatibility. They should not be treated as interchangeable without a detailed manufacturer-level comparison.
Does STM8L151F3P3 support RoHS or REACH compliance?
RoHS and REACH status are not specified in the supplied verified web data for STM8L151F3P3. The correct compliance statement is therefore unknown rather than assumed. RoHS concerns restricted substances in electrical equipment, while REACH concerns chemical substances and articles in the European Union. Obtain the current STMicroelectronics product declaration or material-compliance documentation before using the part in a regulated design, and retain the exact package and ordering information with the declaration.

Données de référence d'ingénierie pour STM8L151F3P3 — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose STM8L151F3P3 when the design needs a compact 8-bit MCU with a verified 16 MHz enhanced STM8 core, 8 KB Flash, 1 KB RAM, and a 1.8 V to 3.6 V supply range. It is particularly suitable for low-power sensor nodes, simple access-control products, compact consumer accessories, and focused industrial control modules. Consider STM8L101F3P3 only after verifying that its pinout, peripherals, memory, and electrical limits meet the target design. STM8S003F3P6 and STM8S103F3P6 may be useful comparison points, but the supplied data does not prove drop-in compatibility. STM8L001J3M3 is a site-listed low-power STM8 candidate, although its memory and pin equivalence are not verified. For a new design, favor the original STM8L151F3P3 when its documented specifications fit; for a replacement, validate every pin and firmware assumption against the exact manufacturer datasheet.

Comparaison avec les alternatives

Paramètre Ce produit STM8L101F3P3 STM8L151F3P6 STM8S003F3P6 STM8S103F3P6 STM8L001J3M3
Brand STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
CPU Architecture 8-bit STM8 enhanced core 8-bit STM8 core 8-bit STM8 core 8-bit STM8 core 8-bit STM8 core 8-bit STM8 core
Low-Power Positioning STM8L EnergyLite ultra-low-power MCU STM8L low-power family STM8L151F3 family STM8S series STM8S series STM8L low-power family

Principaux différenciateurs

  • Specified STM8L EnergyLite positioning (vs STM8S003F3P6)
  • 16 MHz enhanced STM8 core (vs STM8L101F3P3)
  • Verified 8 KB Flash and 1 KB RAM configuration (vs STM8L001J3M3)
  • 20-pin TSSOP package alignment (vs STM8S103F3P6)

Notes de conception

Design the power tree around the verified 1.8 V to 3.6 V STM8L151F3P3 supply range. Place the required bypass capacitors close to the device power pins and confirm that the regulator has adequate transient response for peripherals. If the design uses a low-power battery source, estimate standby current from the MCU mode selection, pull states, external leakage, and regulator quiescent current; the MCU datasheet alone does not determine total system sleep current.

Use the exact 20-pin TSSOP footprint and verify pin 1 orientation against the manufacturer package drawing before routing. Keep clock, reset, and decoupling connections short, and avoid placing noisy switching paths beside sensitive input pins. Because the supplied results identify a TSSOP-20 package but do not provide the complete pin table in the prompt, do not infer alternate-function assignments from generic STM8 documentation; cross-check them against the exact STM8L151F3 datasheet.

Do not treat STM8L101F3P3, STM8S003F3P6, or other TSSOP-20 MCUs as drop-in replacements based on package similarity alone. A valid substitution must match pin mapping, power pins, reset and clock behavior, I/O levels, memory needs, peripheral assignments, and firmware assumptions. The verified cross-reference results identify comparison candidates but do not establish complete pin-to-pin equivalence, so perform a board-level validation before committing to a replacement.

For battery-operated products, calculate the energy budget from the average current and duty cycle rather than from the 16 MHz clock rating. Estimated: if the active state consumes one current level and the sleep state consumes another, use the weighted average Iavg = active_current × active_duty_cycle + sleep_current × sleep_duty_cycle. Then multiply Iavg by the average supply voltage and runtime to estimate battery consumption. Actual numbers must be measured because the supplied data does not include active or sleep current.

Informations de conformité

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Sans plomb
Unknown
Sans halogène
Unknown
Minerais de conflit
Unknown

The supplied verified product and distributor snippets do not state RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification status. Obtain current STMicroelectronics material-compliance documentation before regulatory release.

Données vérifiées le : 2026-10-23 — données vérifiées et sélectionnées par l'équipe d'ingénierie composants de XAIPART

Recherches associées

STM8L151F3P3 STM8L151F3P3 datasheet STMicroelectronics STM8L151F3P3 STM8L151F3P3 16MHz 8KB Flash STM8L151F3P3 TSSOP-20 STM8L151F3P3 low power MCU STM8L151F3P3 vs STM8L101F3P3 STM8L151F3P3 drop-in replacement STM8L151F3P3 price STM8L151F3P3 pinout buy STM8L151F3P3 online STM8L151F3P3 lead time STM8L151F3P3 battery powered sensor STM8L151F3P3 STM8S003F3P6 comparison

Composants & termes associés

STMicroelectronics STM8L151F3P3 STM8L151F3 STM8L EnergyLite 8-bit microcontroller enhanced STM8 CPU core 16 MHz 16 MIPS 8 KB Flash 1 KB RAM 1.8 V to 3.6 V 20-pin TSSOP surface-mount package low-power embedded control battery-powered sensor node embedded system semiconductor microcontroller program memory pinout STM8L101F3P3 STM8S003F3P6 STM8S103F3P6 STM8L001J3M3
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