STM8L152K4U6 - 16MHz 8-Bit Ultra-Low-Power MCU | STMicroelectronics
Teilenummer: STM8L152K4U6 ✓ AktivSTM8L152K4U6 Übersicht
An ultra-low-power microcontroller is a type of embedded controller optimized to minimize energy consumption during active operation, idle periods, and shutdown states. The STM8L family belongs to the broader hierarchy of 8-bit MCU, embedded controller, and semiconductor categories. STM8L152K4U6 devices combine an energy-conscious architecture with analog and digital peripherals, allowing a design to avoid adding separate interface, conversion, or timing components.
Key features include a 16 MHz maximum operating frequency, 16 KB Flash, 1 KB data EEPROM, and 2.5 V or 3.3 V supply operation as identified by the verified distributor data. Integrated communication resources include USART, I2C, and SPI, while the analog subsystem includes an ADC, DAC, and comparators. The RTC and LCD controller support designs that must retain timekeeping or directly drive a low-power display without relying on a separate host processor.
The STM8L architecture uses an 8-bit CISC-style microcontroller core and a modular peripheral arrangement. The verified source describes the STM8L152x4/6 family as part of the STM8L ultra-low-power 8-bit family. Because this product is specified as a 16 KB Flash device, firmware planning must be based on 16 KB rather than the larger memory capacity available to some family members. Exact RAM, current-consumption, accuracy, and absolute maximum ratings require confirmation in the manufacturer datasheet.
Typical uses include battery-powered environmental sensors, compact industrial monitoring nodes, low-power instrument interfaces, LCD-based control panels, and portable measurement products. In these systems, the integrated ADC and comparators support local sensing, the serial interfaces support external sensors or data acquisition modules, and the RTC can provide time stamping or scheduled control functions without continuous external supervision.
Design consideration: select decoupling and power-distribution components according to the manufacturer reference circuit, and verify the device's exact pin assignments before PCB layout because the verified excerpts do not provide a complete pin table. Do not infer that family members with different flash sizes, temperature grades, or package suffixes are interchangeable without checking their ordering information. The STM8L152K4U6 uses a 32-pin UFQFPN with an exposed pad, so land-pattern and thermal-via design must follow the official package drawing.
This page consolidates the verified manufacturer and distributor excerpts, separates exact published facts from unresolved datasheet parameters, and identifies same-family alternatives with explicit engineering differences. It also provides comparison, sourcing, design, and selection guidance to reduce the risk of choosing an MCU based only on its displayed part number.
Drop-in-Alternativen für STM8L152K4U6 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
STM8L151K4U6
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
STM8L151K4U3
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
STM8L152K4U3
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
STM8L151K4U4
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
STM8L152K4U4
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
STM8L152K4U6 Grenzwerte & elektrische Eigenschaften
| Device Type | 8-bit ultra-low-power microcontroller |
| Product Family | STM8L ultra-low-power 8-bit MCU family |
| Maximale Taktfrequenz | 16 MHz |
| Flash Memory | 16 KB (16K x 8) |
| Data EEPROM | 1 KB |
| Versorgungsspannung | 2.5 V or 3.3 V |
| Architecture | 8-bit CISC |
| Gehäuse | 32-pin UFQFPN (5 x 5 mm) with exposed pad |
| Packaging | Tray |
| Montageart | Surface mount |
| Real-Time Clock | Integrated RTC |
| LCD Controller | Integrated LCD controller |
| Serial Interfaces | USART, I2C, and SPI |
| Analog Peripherals | ADC, DAC, and comparators |
| Timers | Integrated timers |
STM8L152K4U6 32-pin ufqfpn (5 x 5 mm) with exposed pad Pinbelegungsleitfaden
Pinbelegung für STM8L152K4U6 (32-pin ufqfpn (5 x 5 mm) with exposed pad-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für STM8L152K4U6.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
STM8L152K4U6 ist geeignet für 6 Anwendungs: Battery-Powered Environmental Sensors, Industrial Process Monitoring, LCD-Based Control Panels, Portable Measurement Instruments, Low-Power Communication Endpoints, Smart Home and Accessory Nodes.
Battery-Powered Environmental Sensors
The STM8L152K4U6 fits battery-powered environmental sensors because it combines a 16 MHz 8-bit core with an integrated ADC, comparators, I2C, SPI, and USART in one 32-pin UFQFPN package. The 16 KB Flash and 1 KB data EEPROM provide local storage for calibration data, counters, and sampled measurements, while the RTC supports periodic timestamps without a separate clock IC. Its ultra-low-power STM8L family positioning makes it relevant for remote temperature, humidity, and gas-monitoring nodes. The primary design checks are the exact ADC accuracy, sleep-mode current, wake-up time, and sensor standby behavior, all of which must be taken from the official datasheet and system power budget.
Empfohlen
Industrial Process Monitoring
STM8L152K4U6 is appropriate for compact industrial monitoring nodes that must measure a local analog signal and report information over a serial link. Its 16 MHz processing rate supports protocol handling and control logic, while the ADC, comparators, USART, I2C, and SPI provide the interfaces needed for sensors and industrial transceivers. The integrated RTC can timestamp events or schedule periodic sampling. For factory use, verify the device’s specified operating-temperature range, supply tolerances, isolation strategy, and ESD requirements before installation. The 32-pin UFQFPN also reduces board area, although the exposed pad must be connected according to the manufacturer land pattern.
Empfohlen
LCD-Based Control Panels
The STM8L152K4U6 suits compact LCD control panels because its verified feature set includes an LCD controller, timers, RTC, and multiple serial interfaces. Engineers can use the 16 KB Flash for menu logic, event handling, and communication firmware while retaining EEPROM for settings or counters. The integrated peripherals reduce the need for a separate display interface IC, which is useful in panel products with limited board area. Designers should confirm the number of LCD segments, available alternate functions, glass bias requirements, and pin multiplexing in the official datasheet. Mechanical stability also depends on the exposed-pad PCB layout and the specified UFQFPN reflow profile.
Empfohlen
Portable Measurement Instruments
STM8L152K4U6 can serve as the control and acquisition MCU in a portable measurement instrument where low power, mixed-signal access, and local connectivity are important. The ADC and comparators support direct sensor conditioning, the DAC enables local test or excitation signals, and USART, I2C, or SPI can connect a display, memory, or external converter. A 16 MHz 8-bit core is appropriate for control-oriented measurements where throughput is not the primary constraint. The 32-pin 5 x 5 mm UFQFPN helps minimize instrument size, but precision analog performance depends on the complete signal chain. Confirm ADC resolution, DAC specifications, reference accuracy, and noise from the manufacturer documentation.
Empfohlen
Low-Power Communication Endpoints
STM8L152K4U6 fits low-power communication endpoints that need protocol buffering, event control, and an energy-conscious 8-bit processor. Its USART, I2C, and SPI interfaces allow connection to a radio, sensor hub, or local transceiver, while the RTC supports scheduled transmissions and the timers support timing functions. The verified 16 MB flash class actually denotes 16 KB of program memory, so designers must size firmware conservatively and avoid assuming the memory capacity of other STM8L152x6 members. Before upgrading a PCB, verify pin-level peripheral mappings and the exposed-pad connection. Firmware qualification should also test low-power transitions, wake-up sources, and bus idle behavior under real system loads.
Empfohlen
Smart Home and Accessory Nodes
STM8L152K4U6 is suitable for compact smart-home accessories that combine local sensing, scheduled operation, and short-range wired communication. The integrated RTC, ADC, comparators, and serial interfaces support occupancy or environmental sensing, timer-based behavior, and connection to a local bus or radio module. Its small 32-pin UFQFPN footprint preserves space for product enclosures, while the STM8L low-power focus supports battery-oriented designs. A complete design should account for MCU quiescent current, peripheral leakage, pull-network consumption, and radio sleep behavior rather than relying on a single device current figure. Use the official package drawing, pin table, and power-management documentation to avoid PCB or firmware incompatibilities.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für STM8L152K4U6 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | STM8L151K4U6 | STM8L151K4U3 | STM8L152K4U3 | STM8L151K4U4 | STM8L152K4U4 |
|---|---|---|---|---|---|---|
| Package | 32-pin UFQFPN (5 x 5 mm) | 32-pin UFQFPN (5 x 5 mm) | 32-pin UFQFPN (5 x 5 mm) | 32-pin UFQFPN (5 x 5 mm) | 32-pin UFQFPN (5 x 5 mm) | 32-pin UFQFPN (5 x 5 mm) |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Architecture | 8-bit CISC | 8-bit CISC | 8-bit CISC | 8-bit CISC | 8-bit CISC | 8-bit CISC |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| DAC | Integrated DAC | Different STM8L151 peripheral set; verify with manufacturer | Different STM8L151 peripheral set; verify with manufacturer | STM8L152 family DAC feature | Different STM8L151 peripheral set; verify with manufacturer | STM8L152 family DAC feature |
| Ordering Grade | U6 | U6 | U3 | U3 | U4 | U4 |
| RTC and LCD Controller | Integrated | RTC and LCD family features; verify with manufacturer | RTC and LCD family features; verify with manufacturer | Integrated | RTC and LCD family features; verify with manufacturer | Integrated |
Wichtigste Unterscheidungsmerkmale
- Target STM8L152 family includes a verified DAC feature (vs. STM8L151K4U6)
- Verified 16 KB Flash allocation for firmware planning (vs. STM8L152K4U3)
- U6 ordering grade matches the verified procurement target (vs. STM8L151K4U3)
Designhinweise
Use the official STM8L152x4/6 UFQFPN land pattern and exposed-pad connection exactly as published by STMicroelectronics. Place input and output decoupling capacitors adjacent to their assigned pins, preserve the recommended ground-return path, and avoid routing fast or sensitive signals beneath the exposed pad. The verified excerpts identify a 32-pin 5 x 5 mm UFQFPN with exposed pad but do not supply terminal numbering, so do not build a PCB from an inferred pinout.
Calculate the complete power budget from the operating mode, 2.5 V or 3.3 V supply choice, peripheral load, and external sensor current rather than from the maximum 16 MHz clock frequency alone. Confirm active, sleep, and standby currents from the official datasheet for the exact ordering code. If analog measurements are important, reserve clean supply routing and follow the manufacturer reference circuit for analog filtering, grounding, and decoupling.
Do not treat every STM8L152K4-family ordering code as automatically interchangeable. The U3, U4, and U6 suffixes can encode different qualification or temperature classes, while STM8L151 and STM8L152 can have different peripheral sets despite similar package and memory descriptions. Before substitution, compare the ordering information, exposed pad, voltage range, temperature grade, ADC, DAC, timers, communications pins, and boot or debug interfaces; then recompile and retest the firmware.
Plan the UFQFPN exposed pad and thermal-via arrangement early because the 32-pin package has closely spaced terminals and limited routing escape options. Fan out each signal according to the manufacturer drawing, maintain short return paths for analog inputs, and separate sensitive RTC or sensor signals from switching nodes. Confirm the recommended land-pattern geometry and reflow conditions from STMicroelectronics rather than relying on a generic QFN footprint.
Compliance-Informationen
The supplied verified excerpts confirm an active lifecycle status but do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. No compliance status has been assumed.
