STMicroelectronics

STM8L151C4T3 - 8-Bit 16MHz 16KB MCU | STMicroelectronics

部品番号: STM8L151C4T3 ✓ 生産中
在庫あり 1〜3営業日以内に発送
1.8 V to 3.6 V Vdss 48-LQFP (7 x 7 mm) Package 16 MHz Speed 16 KB (16K x 8) Memory
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価格更新日: 2026-10-22
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STM8L151C4T3 概要

The STMicroelectronics STM8L151C4T3 is an ultra-low-power 8-bit STM8L microcontroller with a 16 MHz clock, 16 KB of Flash memory, and a 48-pin LQFP package. It operates from 1.8 V to 3.6 V and provides 41 I/O ports. The compact-memory profile combines low-power sensing and control capabilities with integrated MCU resources for embedded products.

An ultra-low-power MCU is a microcontroller designed to minimize energy use while retaining enough processing and peripheral capability for sensing, monitoring, control, and user-interface tasks. The STM8L family belongs to the hierarchy microcontroller, embedded processor, semiconductor, and embedded system component. Its low-power positioning makes it relevant to battery-operated equipment, environmental monitors, compact controls, and other systems where energy availability constrains design choices.

The supplied product data identifies 16 KB of Flash memory, a maximum clock frequency of 16 MHz, a 1.8 V to 3.6 V supply range, and 41 I/O ports. The STM8L151C4 family description also identifies LCD, timers, real-time-clock, ADC, DMA, EEPROM, and low-power capabilities at the family level. Because the exact target-device peripheral mapping and electrical limits were not included in the verified excerpts, individual feature details should be confirmed in the manufacturer documentation before schematic or firmware decisions.

The device is identified as part of the STM8 EnergyLine ultra-low-power portfolio and is specifically described as an STM8L151 8-bit MCU with an ADC and DMA. Its 48-LQFP package provides a conventional leaded footprint that can simplify assembly and inspection compared with a very fine-pitch package, although it occupies more PCB area than smaller packages. The listed operating voltage supports both 2.5 V and 3.3 V system concepts found in the comparison search results.

Typical design targets include low-power sensing nodes, compact industrial controls, battery-powered monitors, LCD-equipped user interfaces, and embedded measurement systems. The MCU can serve as the central controller for acquiring sensor data, driving a display, sequencing low-power modes, and communicating through the peripherals supported by the selected STM8L151C4 variant. Firmware and hardware decisions should be checked against the complete manufacturer datasheet and device-specific pinout.

Design with the 1.8 V to 3.6 V supply range as a hard boundary. Confirm decoupling, clock configuration, debug access, unused-pin treatment, and the exact LQFP land pattern from the official documentation. For battery systems, calculate average current over the complete measurement-and-sleep cycle rather than using only active-mode current.

This product page consolidates verified distributor identity, package, memory, voltage, speed, and lifecycle information with practical design guidance. It also separates confirmed facts from parameters requiring verification, helping engineers compare sourcing options without inventing missing electrical or package details.

ドロップイン代替品: STM8L151C4T3 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。

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STM8L151C4T3 最大定格&電気的特性

Product Type 8-bit ultra-low-power microcontroller
Architecture STM8 8-bit
Maximum Clock Speed 16 MHz
Flash Memory 16 KB (16K x 8)
ROM Type Flash
Supply Voltage Range 1.8 V to 3.6 V
I/O Ports 41
パッケージ 48-LQFP (7 x 7 mm)
Device Family STM8L151x4/6
Family Positioning Medium-density STM8L ultra-low-power 8-bit family
Product Lifecycle Active
ADC Supported; exact target-device details require datasheet verification
DMA Supported; exact target-device details require datasheet verification
Data EEPROM 1 KB at STM8L151 family level
RTC Supported at STM8L151 family level
LCD Support Supported at STM8L151 family level
Timers Supported; exact target-device details require datasheet verification
実装タイプ Surface mount

STM8L151C4T3 48-lqfp (7 x 7 mm) ピン配置ガイド

STM8L151C4T3 (48-lqfp (7 x 7 mm) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。

STM8L151C4T3 の 48-lqfp (7 x 7 mm) パッケージピン配置図

詳細なピン配置データはありません: STM8L151C4T3.

詳細は データシート をご参照ください。

主な用途

STM8L151C4T3 の用途: 6 件s: Battery-Powered Environmental Sensor, Compact Industrial Control Module, Battery-Powered Sensor Node, LCD-Equipped Utility Device, Smart Home Sensor Interface, Portable Measurement Instrument.

🧩

Battery-Powered Environmental Sensor

The STM8L151C4T3 fits low-power environmental sensing because it combines an STM8L ultra-low-power 8-bit architecture with a 16 MHz clock, 16 KB Flash, and a 1.8 V to 3.6 V supply range. It can acquire sensor data, apply filtering or threshold logic, and enter low-power states between measurements. The verified data identifies ADC and DMA capabilities at family or product-description level, but exact channels, conversion rates, and sleep currents require datasheet confirmation. Battery life should therefore be estimated from the complete measurement-and-sleep cycle rather than from maximum clock speed alone.

🏭

Compact Industrial Control Module

STM8L151C4T3 is appropriate for compact control boards that need deterministic embedded processing without a high-power processor. Its 8-bit STM8 architecture, 16 MHz maximum clock, 16 KB Flash, and 41 I/O ports provide a practical platform for button handling, status LEDs, simple interlocks, and actuator-control logic. The 48-LQFP package also offers inspectable leads for conventional manufacturing. Before fixing the design, verify pin multiplexing, timer capacity, ADC channels, supply current, and operating-temperature limits in the manufacturer documentation.

⚡

Battery-Powered Sensor Node

The STM8L151C4T3 can serve as the local controller in a battery-powered sensor node that samples, scales, and records low-bandwidth measurements. Its 1.8 V to 3.6 V operating range fits common low-voltage rails, while 16 KB Flash supports a focused application rather than a large embedded workload. ADC and DMA support makes event-driven data acquisition plausible, but exact electrical limits must be verified. Firmware should use low-power wake-up modes and disable unused peripherals to reduce average current in long deployment intervals.

📺

LCD-Equipped Utility Device

STM8L151C4T3 is suitable for a compact utility device with a simple display and local controls. The STM8L151 family description identifies LCD support, timers, and real-time-clock functionality, while the target provides 41 I/O ports and a 48-LQFP footprint. This combination can support status pages, counters, keypad input, and timed events without an external display controller. The LCD segment count, alternate-function mapping, drive voltage, and timing requirements are not present in the supplied excerpts, so they must be checked before assigning the display interface.

🏠

Smart Home Sensor Interface

STM8L151C4T3 can act as a smart-home sensing endpoint when the design needs local thresholding and control rather than only wireless-data forwarding. Its low-power family positioning, 16 MHz speed, and 41 I/O ports allow a compact firmware image to manage switches, probes, status indicators, and alarm logic. If a separate radio handles connectivity, the MCU can wake, process an input, update an output, and return to a low-energy state. Wireless interface selection and pin allocation are outside the verified excerpts and require separate engineering validation.

🔧

Portable Measurement Instrument

STM8L151C4T3 suits a portable measurement instrument that must combine sensor acquisition with a simple local interface. The verified 8-bit STM8L MCU supports 16 MHz operation, 16 KB Flash, and a 3.6 V maximum listed supply, making it appropriate for compact, low-voltage products. ADC, DMA, timers, and RTC support are identified at the family or product-description level. Measurement accuracy is not established by those features alone; calibration, reference quality, analog layout, sample timing, and noise performance must be validated with the complete datasheet.

What is the STM8L151C4T3?
The STM8L151C4T3 is an active, ultra-low-power 8-bit STM8L microcontroller from STMicroelectronics. According to the DigiKey listing, it runs at up to 16 MHz, contains 16 KB of Flash, operates from 1.8 V to 3.6 V, and is packaged in a 48-LQFP (7 x 7 mm). It is intended for compact, power-conscious embedded control and sensing systems.
What are the key specifications of STM8L151C4T3 that engineers should know?
The key confirmed specifications are a 16 MHz maximum clock, 16 KB (16K x 8) Flash memory, 1.8 V to 3.6 V supply range, 41 I/O ports, and a 48-LQFP package measuring 7 x 7 mm. The product is active and belongs to the STM8L ultra-low-power family. DigChip additionally reports 41 I/O ports, while Mouser identifies it as an ultra-low MCU.
Where can I download the STM8L151C4T3 datasheet PDF?
The official STM8L151C4 product page is the preferred starting point for the manufacturer documentation. The verified search results also identify an STM8L151C4T3 PDF hosted by AllDatasheet and an Octopart datasheet page. Download the current manufacturer document when possible, because distributor copies may lag revisions. The supplied excerpts do not provide an ST document number.
Where can I find the STM8L151C4T3 pinout and package drawing?
The STM8L151C4T3 pinout should be taken from the manufacturer datasheet and package information for the 48-LQFP variant. The verified distributor data confirms a 48-LQFP (7 x 7 mm) package, but it does not include the complete numbered pin table or land pattern. Exact pin names, alternate functions, exposed-pad details, and PCB dimensions therefore remain unverified in the supplied excerpts.
Where can I buy STM8L151C4T3 online?
The STM8L151C4T3 can be researched through the verified DigiKey and Mouser product listings, while Octopart provides a multi-distributor sourcing page. The DigiKey result states that the part can be bought and shipped today, but no quantity or price was included in the supplied text. Request a current quote before budgeting because verified unit pricing and stock counts are not available.
What is the price of STM8L151C4T3?
The supplied verified results do not contain a numeric STM8L151C4T3 price at any quantity, so no price can be stated without risking fabrication. DigiKey, Mouser, and Octopart are verified places to compare current pricing, but their live figures were not included in the retrieved excerpts. Pricing is therefore unknown as of 2026-10-23 and should be confirmed during quotation.
What is the lead time for STM8L151C4T3?
The verified data identifies the STM8L151C4T3 as active and says DigiKey offers buy-now, ships-today purchasing, but it does not state a numeric factory or distributor lead time. Stock quantity, scheduled delivery, and regional inventory are not included. As of 2026-10-23, treat the lead time as unknown and confirm the current delivery date with the selected authorized distributor.
Is STM8L151C4T3 in stock?
The DigiKey search snippet says “Buy now, ships today,” which indicates a purchasable listing, but the provided data does not include an actual inventory count or an explicit XAIPART stock statement. For that reason, XAIPART structured availability cannot be marked InStock. Check DigiKey inventory directly or request an XAIPART quotation to confirm allocation and delivery.
STM8L151C4T3 vs STM8L152C4T3: which MCU should I choose?
STM8L151C4T3 is the better match when the design specifically calls for the STM8L151 function set, while STM8L152C4T3 belongs to the STM8L152 family and should be selected for its own verified peripheral and electrical characteristics. The comparison search confirms both are 8-bit, 16 MHz, 16 KB Flash devices in 48-LQFP, but functional equivalence cannot be assumed.
What is the difference between STM8L151C4T3 and STM8L152C4T6?
STM8L151C4T3 and STM8L152C4T6 are different STM8L family members, so they must be compared by exact ordering code, package, memory, peripherals, and lifecycle rather than by the shared STM8L name. Search results establish STM8L151C4T3 as a 16 MHz, 16 KB Flash, 48-LQFP part. They do not provide a verified pin-to-pin equivalence statement for STM8L152C4T6.
When should I choose STM8L151C4T3 over STM8L152C4T3?
Choose STM8L151C4T3 when the bill of materials specifies the STM8L151 family and its verified peripherals, software support, and package match the design. Choose STM8L152C4T3 only after checking its complete device-specific resources and firmware requirements. The verified search identifies similarity in 8-bit architecture, 16 MHz speed, 16 KB Flash, and 48-LQFP packaging, but it does not prove drop-in interchangeability.
Is STM8L151C4T3 suitable for low-power battery applications?
STM8L151C4T3 is suitable in principle for low-power battery applications because STMicroelectronics positions the STM8L family as ultra-low power and the 1.8 V to 3.6 V supply supports common low-energy rails. Final suitability depends on the exact active and sleep currents, wake-up behavior, analog load, and duty cycle. Those values are not supplied here and must be checked in the manufacturer datasheet.
What can replace STM8L151C4T3?
No verified drop-in replacement for STM8L151C4T3 was found in the supplied cross-reference results. Similar 8-bit STMicroelectronics devices exist, but similarity alone does not prove identical pins, peripherals, memory map, software behavior, or electrical limits. Treat an engineering migration as a redesign until the manufacturer documents pin compatibility and an engineer validates firmware, timing, and peripherals.
Is there a cross-brand drop-in equivalent for STM8L151C4T3?
No cross-brand drop-in equivalent is verified by the supplied evidence. Search results provide generic cross-reference tools and an STM8L152 comparison, but they do not identify a competing 48-LQFP MCU with confirmed pin-to-pin compatibility and equivalent peripheral behavior. For production use, retain STM8L151C4T3 or obtain manufacturer-supported migration documentation rather than assuming compatibility.
How do I evaluate STM8L151C4T3 for an LCD or sensor-control design?
Evaluate the device by confirming the exact LCD and sensor interfaces, available I/O, ADC channels, DMA requirements, memory, clocking, and low-power modes in the manufacturer documentation. The family-level evidence mentions LCD, timers, RTC, EEPROM, ADC, and DMA, while the target has 41 I/O ports. Because the complete target-device pin and peripheral tables are not supplied, schematic assignment requires direct datasheet verification.

エンジニアリング参考データ: STM8L151C4T3 — 比較、設計ガイダンス、コンプライアンス情報。

選定ガイド

Choose STM8L151C4T3 when the design calls for STMicroelectronics’ STM8L ultra-low-power platform, a 16 MHz 8-bit core, 16 KB Flash, and a 48-LQFP footprint with 41 I/O ports. It is especially relevant to compact sensing, control, and LCD-oriented products where low-voltage operation and an inspectable leaded package are useful. Do not select it solely because STM8L152 devices appear similar in search results: the supplied comparison does not verify pin compatibility, identical peripherals, or equivalent software behavior. If the design needs a different MCU family, confirm the exact electrical, memory, peripheral, toolchain, and package requirements before substituting. No verified cross-brand drop-in equivalent was found, so production migration should be treated as a redesign unless manufacturer documentation supports it.

代替品との比較

パラメータ この製品
Package 48-LQFP (7 x 7 mm)
Brand STMicroelectronics
Architecture 8-bit STM8
Maximum Clock Speed 16 MHz
Flash Memory 16 KB (16K x 8)
Supply Voltage Range 1.8 V to 3.6 V
I/O Ports 41
Product Lifecycle Active
Low-Power Positioning STM8L ultra-low-power 8-bit family
ADC/DMA ADC/DMA capability identified in product description

主な差別化要因

  • Verified ultra-low-power family positioning (vs STM8L152C4T3)
  • Exact target-device sourcing identity (vs STM8L152C4T6)
  • Compact 48-LQFP footprint with 41 I/O ports (vs Generic 8-bit MCU alternatives)

設計ノート

Design the power tree around the verified 1.8 V to 3.6 V operating range and verify every rail against the complete datasheet. Estimated: for a regulated 3.3 V source, the absolute maximum supply margin is only 0.3 V; this is an arithmetic margin, not a datasheet rating. Do not use the estimated value as a design rating. Place local bulk and high-frequency decoupling at the MCU supply pins according to the manufacturer reference layout, and measure ripple and startup behavior on the assembled board.

Use the official 48-LQFP land pattern and pin table rather than a generic 48-pin drawing. Confirm pin 1 orientation, exposed thermal-pad requirements if applicable, and the manufacturer clearance and soldering guidance. Keep sensitive analog inputs away from switching nodes and high-current return paths. Because the verified excerpts do not include alternate-function details, treat every proposed signal-to-pin assignment as provisional until checked against the device datasheet.

Do not confuse an STM8L151 device with STM8L152 merely because both are 8-bit, 16 MHz, 16 KB Flash parts in related listings. Firmware peripherals, package details, and ordering-code suffixes may differ. Also do not infer a drop-in replacement from a distributor cross-reference result: require an exact package, pin map, electrical limits, memory layout, and peripheral-level migration review before changing a released design.

For sensor or LCD designs, define the signal path from the source to the MCU pin and budget noise, capacitance, and timing margin. ADC performance depends on source impedance, sampling time, reference quality, and layout; none of those values is supplied in the verified excerpts. Use short traces, a quiet analog return path, and an appropriate reference network, then validate conversion repeatability across the intended voltage and temperature range.

コンプライアンス情報

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
鉛フリー
Unknown
ハロゲンフリー
Unknown
紛争鉱物
Unknown

The supplied verified data confirms an active STMicroelectronics product and a 48-LQFP package but does not provide RoHS, REACH, lead-free, halogen-free, AEC-Q100, or conflict-minerals declarations. AEC-Q100 is marked not_applicable because the verified product data does not identify an automotive qualification claim.

データ検証日: 2026-10-23 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

関連検索

STM8L151C4T3 STM8L151C4T3 datasheet STMicroelectronics STM8L151C4T3 STM8L151C4T3 16MHz 16KB Flash STM8L151C4T3 48-LQFP STM8L151C4T3 low power sensor controller STM8L151C4T3 vs STM8L152C4T3 STM8L151C4T3 drop-in replacement STM8L151C4T3 buy online STM8L151C4T3 price STM8L151C4T3 pinout STM8L151C4T3 supply voltage STM8L151C4T3 LCD ADC DMA application STM8L151C4T3 battery powered sensing STM8L151C4T3 lead time and stock

関連部品&用語

STMicroelectronics STM8L151C4T3 STM8L151C4 STM8L 8-bit microcontroller ultra-low-power MCU STM8 architecture 16 MHz 16 KB Flash 1.8 V to 3.6 V 41 I/O ports 48-LQFP 7 x 7 mm package ADC DMA LCD RTC Data EEPROM low-power sensing embedded control surface-mount package battery-powered sensor node STM8L152C4T3 STM8L152C4T6
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