STMicroelectronics

STM8L101K3T3 - 16MHz 8KB 8-Bit MCU | STMicroelectronics

MPN: STM8L101K3T3 ✓ Aktif
1.65 V to 3.6 V Vdss 32-LQFP, 7 mm × 7 mm Package 16 MHz Speed Up to 8 KB (8K × 8) Memory
MOQ: 1 |

STM8L101K3T3 Ringkasan

The STMicroelectronics STM8L101K3T3 is an ultra-low-power 8-bit microcontroller with a 16 MHz maximum clock, up to 8 KB of Flash program memory and a 32-LQFP 7 mm × 7 mm package. Designed around the STM8L low-power architecture, it combines compact processing capability with integrated peripherals for low-power embedded systems.

An ultra-low-power microcontroller is a semiconductor category intended to minimize both active and standby energy consumption. Within the product hierarchy, the STM8L101K3T3 belongs to the STM8L family of 8-bit RISC microcontrollers and serves as a low-power system controller for battery-operated, portable and space-constrained products. Its low-power operating range is especially relevant to designs where the controller must remain responsive while consuming minimal energy between user actions or sensor events.

Principal features include operation from 1.65 V to 3.6 V, a maximum CPU frequency of 16 MHz, up to 8 KB of Flash memory, 18 I/O ports and an enhanced STM8 CPU core capable of up to 16 MIPS at 16 MHz. The device family also provides multifunction timers, comparators, USART, SPI and I2C interfaces, allowing a compact design to handle timing, analog comparisons and serial communication without requiring several discrete interface components.

The STM8 CPU core provides an 8-bit processing architecture optimized for compact embedded control rather than high-performance computing. At 16 MHz, the core can execute up to 16 million instructions per second, which is appropriate for state machines, sensor aggregation, actuator control and low-rate serial data handling. The 8 KB Flash limit means that firmware and constants must be planned carefully, particularly when application code, boot logic and lookup tables share the available program-memory budget.

Typical uses include battery-powered sensor nodes, compact industrial controllers, home-automation endpoints, portable measurement instruments, low-power remote controls and embedded accessories. Its combination of serial interfaces supports sensors and transceivers connected through I2C or SPI, while USART can connect the controller to a host, modem or local configuration interface. The 32-LQFP package also offers enough peripheral connections for systems that need more I/O than a compact 20-pin package can provide.

Designers should verify the exact pin assignments, alternate-function limitations and low-power mode behavior against the manufacturer documentation before finalizing the PCB. Decoupling should be placed directly at the supply pins, programming and reset access must remain available, and firmware should avoid unnecessary peripheral activity during sleep. These practices help preserve the device family's intended low-power behavior while preserving communication reliability.

This product page consolidates the device's confirmed electrical specifications, package information, lifecycle status and application guidance with a practical comparison against the closest documented STM8L101K3 variants. It also highlights the restrictions involved when replacing one ordered MPN with another temperature-grade or packing option.

Alternatif penggantian untuk STM8L101K3T3 — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.

Variasi di dalam seri ini

Model-series yang sama yang kompatibel dengan penggantian STM8L101K3T3 (sama faktor bentuk dan footprint) — berbeda di dalam Flash Memory, Package, Product Type, Serial Interfaces.

STMicroelectronics
Flash Memory: 8 KB
Package: 32-LQFP, 7 x 7 mm
Product Type: 8-bit ultralow-power microcontroller
Bandingkan dengan STM8L101K3T3 →

STM8L101K3T6

✅ Drop-In
STMicroelectronics
📦 32-LQFP (7 mm × 7 mm)
8-bit ultralow-power microcontroller · STM8L EnergyLite · 16 MHz · 8 KB · 1.65 V to 3.6 V · 18 · USART, SPI, I2C · Multifunction timers and comparators

Kontak untuk harga

Lihat Datasheet →

STM8L101K3T6TR

✅ Drop-In
📦 32-LQFP (7 mm × 7 mm)
Same 16 MHz core and up to 8 KB Flash with a 40°C higher upper temperature limit; adds tape-and-reel ordering packaging.

📋 Alternatif referensi (tidak dalam katalog)

STM8L101K3T3 Rating Maksimal & Karakteristik Listrik

Product Type 8-bit ultra-low-power microcontroller
Maximum CPU Frequency 16 MHz
Maximum Processing Performance 16 MIPS at 16 MHz
Flash Memory Up to 8 KB (8K × 8)
Supply Voltage Range 1.65 V to 3.6 V
I/O Port Count 18 ports
Paket 32-LQFP, 7 mm × 7 mm
Jumlah Pin 32 pins
CPU Architecture Enhanced STM8 8-bit RISC core
Timers Multifunction timers
Analog Peripherals Comparators
Serial Interfaces USART, SPI and I2C
Rentang Suhu Kerja -40°C to +125°C
Status Lingkungan Hidup Active
RoHS Compliance Compliant
Tipe Mounting Surface mount
Manufacturer STMicroelectronics

STM8L101K3T3 32-lqfp, 7 mm × 7 mm Diamant Konfigurasi Panduan

Konfigurasi pin untuk STM8L101K3T3 (32-lqfp, 7 mm × 7 mm pakai pakai). IC digital ini termasuk GPIO, antarmuka komunikasi (UART, SPI, I2C), dan pin kuasa. Lihat datasheet produsen untuk fungsi pin alternatif dan opsi konfigurasi. Penting untuk desain sistem pengemasan dan PCB.

Diamant diagram pakai pakai 32-lqfp, 7 mm × 7 mm untuk STM8L101K3T3

Tidak ada data diatribut pin yang tersedia untuk STM8L101K3T3.

Lihat ke: datasheet produk untuk konfigurasi pin penuh.

Aplikasi Umum

STM8L101K3T3 cocok untuk 6 aplikasis: Battery-Powered Sensor Node, Compact Industrial Control Module, Home Automation Endpoint, Portable Measurement Instrument, Low-Power Remote Control, Smart Home Sensor Gateway.

🧩

Battery-Powered Sensor Node

The STM8L101K3T3 fits a battery-powered sensor node because its STM8L low-power architecture operates from 1.65 V to 3.6 V while retaining a 16 MHz execution rate. The controller can sample sensors, apply filtering and manage a duty-cycled sleep schedule without keeping every peripheral active. Its 8 KB Flash budget suits compact acquisition logic, while the 18 available I/O ports provide connections for sensors, status indicators and a low-power enable path.

🏭

Compact Industrial Control Module

The STM8L101K3T3 is appropriate for compact industrial control modules that combine sequencing, discrete inputs and limited local communications. Its 16 MHz STM8 core supports responsive state-machine control, and the integrated comparators can assist with threshold and fault detection. The 1.65 V to 3.6 V supply range supports low-energy logic rails, while USART, SPI and I2C provide paths to local sensors, transceivers and service connectors.

🏠

Home Automation Endpoint

The STM8L101K3T3 can serve as a home-automation endpoint for a compact wall controller, room sensor or appliance interface. Its I2C and SPI peripherals support digital sensors and local transceivers, while USART offers a simple path to a host controller or configuration tool. At 16 MHz, the MCU provides enough performance for command handling, indicator logic and debounce routines, and the 8 KB Flash capacity favors focused embedded tasks.

🖥️

Portable Measurement Instrument

The STM8L101K3T3 supports portable measurement instruments that need local control, data acquisition and a simple serial link. Its 16 MHz processing rate is suitable for digital filtering, calibration tables and instrument-state management, while its 18 I/O ports can serve displays, switches and sensors. The 1.65 V minimum operating voltage is useful for battery-based designs, provided the firmware disables unused peripherals before the controller enters its low-power state.

📱

Low-Power Remote Control

The STM8L101K3T3 is well suited to a low-power remote control because it combines an 8-bit STM8L controller with a 16 MHz maximum clock and a supply range beginning at 1.65 V. It can decode buttons, drive indicators and manage a short-range communication link without requiring a larger processor. The compact 32-LQFP package preserves PCB area, while the integrated USART, SPI and I2C interfaces offer flexibility for an attached radio or sensor.

🌐

Smart Home Sensor Gateway

The STM8L101K3T3 can act as a smart-home sensor gateway when the design requires local aggregation rather than a full application processor. Its 8 KB Flash can hold routing logic and device filtering, and the 16 MHz core can handle periodic sensor polling, protocol framing and status reporting. I2C and SPI suit short-range digital devices, while USART provides a straightforward bridge to a higher-level communications module or service interface.

What are the key specifications of STM8L101K3T3 that engineers should know?
The STM8L101K3T3 is an 8-bit ultra-low-power STM8L microcontroller rated for 16 MHz operation, up to 8 KB of Flash memory and a 1.65 V to 3.6 V supply range. It provides 18 I/O ports and uses a 32-LQFP 7 mm × 7 mm package. According to the STMicroelectronics STM8L101K3 product page, the enhanced STM8 core reaches up to 16 MIPS at 16 MHz.
What is the operating voltage of STM8L101K3T3?
The STM8L101K3T3 operates from 1.65 V to 3.6 V. According to the STMicroelectronics STM8L101K3 product page and distributor specification listings, this range supports low-voltage embedded systems where conserving battery energy is important. The designer should keep supply transients and peripheral current within the limits specified by the manufacturer datasheet.
How fast does the STM8L101K3T3 operate?
The STM8L101K3T3 operates at up to 16 MHz and can deliver up to 16 MIPS with its enhanced STM8 CPU core. According to the STMicroelectronics product page, this performance is intended for compact control tasks, serial communications and low-power embedded logic rather than graphics or computationally intensive workloads. Clock selection should follow the device's low-power mode and external-clock requirements.
How much program memory does the STM8L101K3T3 have?
The STM8L101K3T3 provides up to 8 KB of Flash program memory, organized as 8K × 8. DigiKey's component record identifies the device as an 8 KB Flash STM8L EnergyLite microcontroller, while the manufacturer describes the STM8L101x3 family as supporting up to 8 KB. Firmware sizing should include application logic, bootloader code and any embedded constant tables.
What package and pin count are used by STM8L101K3T3?
The STM8L101K3T3 uses a 32-pin LQFP package measuring approximately 7 mm × 7 mm. DigiKey and FindIC identify the case as LQFP-32, while the manufacturer groups it with the STM8L101x3 low-power family. The surface-mount package supports 18 I/O ports in addition to power, clock, reset, programming and other dedicated signals.
Where can I buy STM8L101K3T3 online?
The STM8L101K3T3 can be requested through XAIPART's Request a Quote form on this product page. The form lets buyers specify quantity, target packaging and delivery requirements for a current sourcing response. Component availability can change quickly, so buyers should submit their requirements rather than rely on an outdated stock indication from another product listing.
What is the price of STM8L101K3T3?
Current commercial pricing for the STM8L101K3T3 is handled through XAIPART's Request a Quote form on this page. The form is the appropriate channel for quantity pricing, packaging requirements and current availability. Price depends on order quantity, lead time, package form and market conditions, so a quote provides more useful purchasing information than a static figure.
What is the lead time and stock status for STM8L101K3T3?
Request the current STM8L101K3T3 lead time, minimum order quantity and stock status through XAIPART's Request a Quote form on this page. STMicroelectronics lists the STM8L101K3 family as active, but production availability and delivery scheduling still depend on the selected package and order volume. The quote request should state the required quantity and target date.
STM8L101K3T3 vs STM8L101K3T6 - which is better for an industrial design?
STM8L101K3T6 is generally the better choice for an industrial design that requires the extended -40°C to +125°C temperature grade, while STM8L101K3T3 is the lower-temperature-grade option. According to STMicroelectronics ordering information, the T3 and T6 suffixes distinguish the device temperature grades. Both use the same 32-LQFP architecture and 16 MHz STM8 core.
What is the difference between STM8L101K3T3 and STM8L101K3T6TR?
STM8L101K3T6TR combines the T6 extended-temperature grade with tape-and-reel packaging, whereas STM8L101K3T3 uses the lower T3 temperature grade and a tray-style ordering configuration. The documented equivalents share the 16 MHz STM8 core, up to 8 KB Flash and 32-LQFP package. Choose T6TR when both the extended temperature range and reel packaging are required.
When should I choose STM8L101K3T3 over STM8L101K3T6?
Choose STM8L101K3T3 when the operating environment remains within the T3 temperature grade and the enclosure can use its standard packaging configuration. Select STM8L101K3T6 when ambient temperatures may exceed the T3 limit or when procurement needs the extended -40°C to +125°C grade. According to STMicroelectronics ordering information, both retain the same STM8L101K3 core and 32-LQFP footprint.
Is STM8L101K3T3 suitable for a battery-powered sensor node?
Yes, the STM8L101K3T3 is suitable for a battery-powered sensor node because it belongs to the ultra-low-power STM8L family and operates from 1.65 V to 3.6 V. Its I2C and SPI interfaces can connect compatible sensors, while USART supports host communication. The final battery-life estimate should include sensor standby current, radio activity and regulator quiescent current.
What can replace STM8L101K3T3?
The closest documented replacement is STM8L101K3T6, which retains the STM8L101K3 architecture, 16 MHz processing capability, up to 8 KB Flash and 32-LQFP footprint while changing the temperature grade. STM8L101K3T6TR is another option when extended temperature capability and tape-and-reel packaging are both required. No verified cross-manufacturer pin-to-pin drop-in replacement was identified.
Is STM8L101K3T3 the same as STM8L101K3T6?
No, STM8L101K3T3 and STM8L101K3T6 are not identical ordered temperature grades. The principal functional characteristics remain consistent, including the STM8 8-bit core, 16 MHz maximum clock, up to 8 KB Flash and 32-LQFP package, while the T3 and T6 suffixes identify different temperature ratings. Verify the operating-temperature requirement before substitution.
Where can I download the STM8L101K3T3 datasheet PDF and find its pinout?
The official STM8L101K3 product page is the primary starting point for the STM8L101K3T3 datasheet, ordering information and device pinout. STMicroelectronics identifies the family as an 8-bit ultra-low-power MCU with up to 8 KB Flash in a 32-LQFP package. Use the pin-description table and package drawing in the manufacturer documentation when assigning PCB nets or programming the device.

Data referensi engineering untuk STM8L101K3T3 — pembandingan, panduan desain, dan informasi konformitas.

Panduan Pemilihan

Choose STM8L101K3T3 when the product operates within the T3 temperature grade and its standard packaging format is acceptable. It is appropriate for compact, low-voltage control products that need an 8-bit STM8L core, up to 8 KB of Flash and integrated USART, SPI and I2C interfaces. Select STM8L101K3T6 when the ambient environment may reach 125°C; it keeps the same 32-LQFP footprint and key processing, memory and interface ratings. Choose STM8L101K3T6TR when the extended T6 temperature range must be combined with tape-and-reel production packaging. No verified cross-manufacturer drop-in replacement was identified, so a different manufacturer's MCU should not be treated as automatically interchangeable; firmware, clock, pin-multiplexing, memory and peripheral differences require a full design review.

Pembandingan dengan Alternatif

Parameter Umum Produk Ini STM8L101K3T6 STM8L101K3T6TR
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics
Brand STMicroelectronics STMicroelectronics STMicroelectronics
Package 32-LQFP (7 mm × 7 mm) 32-LQFP (7 mm × 7 mm) - same 32-LQFP (7 mm × 7 mm) - same
Maximum CPU Frequency 16 MHz 16 MHz 16 MHz
Maximum Processing Performance 16 MIPS at 16 MHz 16 MIPS at 16 MHz 16 MIPS at 16 MHz
Flash Memory Up to 8 KB Up to 8 KB Up to 8 KB
Supply Voltage Range 1.65 V to 3.6 V 1.65 V to 3.6 V 1.65 V to 3.6 V
Temperature Grade T3 grade, up to 85°C T6 grade, up to 125°C T6 grade, up to 125°C
Serial Interfaces USART, SPI and I2C USART, SPI and I2C USART, SPI and I2C
I/O Port Count 18 ports 18 ports 18 ports

Diferensiator Kunci

  • Lower-temperature-grade ordering option (vsSTM8L101K3T6)
  • Standard-temperature-grade alternative retains the full footprint (vsSTM8L101K3T6TR)
  • Compact low-voltage control platform (vsSTM8L101K3T6TR)

Catatan Desain

Place the supply bypass capacitor directly beside the STM8L101K3T3 power pins and route the return path without narrow interruptions. Although the device operates down to 1.65 V, low supply voltage leaves less margin for trace resistance, source impedance and simultaneous peripheral current. Confirm the minimum operating voltage of every attached peripheral and size the regulator for the worst-case load rather than the controller's average current.

Use the manufacturer package drawing and pin-description table to assign every LQFP-32 connection. Keep programming, reset and clock-trace access available on the PCB, and avoid long branches beneath the device where they can increase coupling. The 18 I/O ports must be checked against alternate-function restrictions; a pin used for SPI, I2C or USART may not support every general-purpose input or output function at the same time.

Do not treat STM8L101K3T3, STM8L101K3T6 and STM8L101K3T6TR as identical manufacturing codes. The T6 variants extend the upper temperature limit by 40°C, and the TR suffix selects tape-and-reel packaging. Software should also avoid assuming that every peripheral remains clocked in a low-power mode. Disable unused peripherals and confirm the wake conditions, run-time state and timing behavior in the manufacturer documentation.

Informasi Konformitas

RoHS
Compliant
REACH
Unknown
AEC-Q100
Not Applicable
Bebas Logam Lengket
Unknown
Bebas Halogena
Unknown
Mineral Konflik
Unknown

The component listing identifies the device as RoHS compliant. No additional REACH, lead-free, halogen-free or conflict-minerals declarations were identified.

Data disahkan pada: 2026-11-04 — data disahkan dan disusun oleh tim engineering komponen XAIPART

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Komponen dan Istilah Terkait

STMicroelectronics STM8L101K3T3 STM8L101K3T6 STM8L101K3T6TR STM8L101x3 STM8L EnergyLite STM8 CPU core 8-bit RISC microcontroller ultra-low-power microcontroller low-power system controller semiconductor USART SPI I2C multifunction timer comparator 16 MHz 16 MIPS 8 KB Flash 1.65 V to 3.6 V 32-LQFP QFN package family surface mount RoHS battery-powered sensor node
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