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STMicroelectronics STM8L101F3P6TR
- Part No.:
- STM8L101F3P6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
STM8L101F3P6TR.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,111
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Product details
Overview
STM8L101F3P6TR from STMicroelectronics is an 8-bit ultra-low-power microcontroller featuring 8 Kbytes Flash, 1.5 Kbytes RAM, and integrated peripherals including two 16-bit timers, USART, SPI, I²C, two comparators, and infrared (IR) interface. It operates from 1.65 V to 3.6 V across –40 °C to +85 °C, with dynamic run current of 150 µA/MHz - optimized for battery-powered sensor nodes and portable medical devices.
For engineers reviewing the STM8L101F3P6TR datasheet, STM8L101F3P6TR pinout, STM8L101F3P6TR application, or STM8L101F3P6TR equivalent, key selection criteria include ultra-low-power Halt mode (0.3 µA), SWIM debug interface, IR transmitter capability, PA0's high-sink LED driver (up to 20 mA), and 20-pin TSSOP package compatibility with space-constrained PCB layouts.
Technical Context
The STM8L101F3P6TR implements a CISC-based STM8 core delivering up to 16 MIPS at 16 MHz, supported by dual internal oscillators: a 16 MHz RC (HSI) with 4 µs wakeup and a 38 kHz low-power RC (LSI) for IWDG/AWU. Its nested interrupt controller supports 29 external sources with software-configurable priority.
Memory architecture includes ECC-protected Flash (up to 8 KB), 2 KB data EEPROM with flexible read/write protection, and 1.5 KB SRAM. Clock management enables three low-power modes - Wait, Active-halt, and Halt - with precise control over peripheral clock gating and voltage regulator states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | STM8 8-bit CISC CPU, 16 MIPS @ 16 MHz - enables deterministic real-time control in resource-constrained firmware. |
| Flash / EEPROM | 8 Kbytes Flash with ECC + 2 Kbytes data EEPROM - ensures reliable code storage and nonvolatile parameter retention without external memory. |
| RAM | 1.5 Kbytes static RAM - sufficient for stack, buffers, and real-time variables in sensor fusion or protocol stacks. |
| Supply Voltage | 1.65 V to 3.6 V - supports direct operation from single Li-ion, coin cell, or energy-harvesting sources. |
| Low-Power Modes | Halt: 0.3 µA, Active-halt: 0.8 µA, Dynamic Run: 150 µA/MHz - extends battery life in intermittent-sensing applications. |
| Peripherals | USART (fractional baud), SPI, I²C (400 kHz), 2×16-bit timers, 1×8-bit timer, IR interface, 2×comparators - integrates communication, timing, and analog sensing in one die. |
| Operating Temp | –40 °C to +85 °C - qualified for industrial and consumer environments without derating. |
Pinout & Package
STM8L101F3P6TR uses a 20-pin TSSOP package (6.5 × 4.4 mm, 0.65 mm pitch) with exposed thermal pad. Pin functions are fully defined per ST's Figure 4 (TSSOP20 pinout) and Table 4 (pin description).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Primary 1.65–3.6 V supply rail; decoupling required within 1 cm for stable low-power operation. |
| VSS | Ground reference | Dedicated digital ground; separate analog ground not required due to integrated LDO and low-noise design. |
| NRST | Active-low reset input | Internal pull-up enabled; accepts external push-button or supervisor IC for system-level reset coordination. |
| SWIM | Single-wire debug interface | Enables non-intrusive programming and real-time debugging via dedicated pin - no UART or JTAG overhead. |
| PA0 | High-sink I/O / LED driver | Capable of sinking up to 20 mA - directly drives IR LEDs or status indicators without external drivers. |
| PA1–PA7 | General-purpose I/O | All mappable to external interrupts; support programmable pull-ups and true open-drain mode on select pins. |
| PC0–PC5 | Multiplexed peripheral I/O | Host USART TX/RX, SPI SCK/MOSI/MISO, I²C SCL/SDA - enables concurrent serial interfaces with minimal pin count. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power Halt mode | 0.3 µA typical - enables multi-year battery life in wake-on-event sensor nodes (e.g., door/window sensors). |
| Integrated IR transmitter | Dedicated hardware modulation at 30–60 kHz - eliminates need for external carrier generator in remote control endpoints. |
| Hardware beeper timer | Generates 1/2/4 kHz tones - provides audible feedback without CPU intervention or external oscillator. |
| Error Correction Code (ECC) | On-chip Flash ECC detection/correction - prevents silent corruption in long-life embedded deployments. |
| SWIM debug interface | Single-pin, high-speed programming and live register inspection - reduces debug footprint vs. SWD/JTAG. |
Applications
| Wireless Sensor Node | Portable Medical Device |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting data via UART-to-LoRa module. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, data formatting, sleep/wake cycles, and IR wake-up coordination. Use Value: 0.3 µA Halt current and fast 4 µs wakeup from HSI enable sub-second response with >5-year CR2032 lifetime. |
Use Scenario: Handheld pulse oximeter with LED drive, analog comparator for signal conditioning, and USB-UART bridge. IC Role / Device Role / Timing Role: System manager handling LED timing, analog front-end control, and low-latency serial reporting. Use Value: PA0's 20 mA sink capability directly drives red/IR LEDs; dual comparators support ratiometric photodiode signal processing. |
| Smart Home Remote | Industrial Status Indicator |
Use Scenario: IR remote with button matrix, beeper feedback, and low-battery warning. IC Role / Device Role / Timing Role: IR encoder, key scan controller, and tone generator - all in one chip. Use Value: Integrated IR modulator and 1/2/4 kHz beeper timer eliminate discrete logic and external oscillators. |
Use Scenario: DIN-rail mounted equipment status panel with multi-color LED indicators and fault logging. IC Role / Device Role / Timing Role: Real-time LED sequencer, EEPROM-based event counter, and watchdog supervisor. Use Value: 2 KB data EEPROM stores fault timestamps and cycle counts; 1.5 KB RAM supports rolling log buffer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM8L051F3P6 | Same 20-pin TSSOP package, identical core/peripherals, but only 4 KB Flash and 1 KB RAM. | Suitable for simpler firmware with smaller code footprint; lacks 2 KB data EEPROM. | Select when cost sensitivity outweighs EEPROM requirement and code size stays under 4 KB. |
| EFM8LB12F32ES1QFP24 | Silicon Labs 8051 core, 32 KB Flash, 2.25 KB RAM, 1.8–3.6 V, 0.5 µA deep sleep - higher memory but no IR hardware block. | Requires external components for IR carrier generation; better for mixed-signal apps needing more ADC channels. | Choose when larger program space or additional analog features (e.g., 12-bit ADC) are critical, and IR is implemented in firmware. |
Compared with STM8L051F3P6, this part adds 4 KB Flash and full 2 KB data EEPROM for field-upgradable parameters; versus EFM8LB12F32ES1QFP24, it delivers hardware-accelerated IR transmission and lower deep-sleep current at the expense of ADC resolution and total memory.
Availability
STM8L101F3P6TR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical devices, smart home remotes, and industrial status indicators requiring stable component supply across extended product lifecycles.
Supply support for STM8L101F3P6TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and automotive-grade components.
The STM8L101 series belongs to ST's ultra-low-power 8-bit MCU family, engineered specifically for energy-constrained applications where sub-microamp sleep current, fast wakeup, and integrated peripherals reduce bill-of-materials and PCB area.
FAQ
Does STM8L101F3P6TR support in-application programming (IAP)?
Yes, it supports full in-application programming of Flash and data EEPROM via the built-in bootloader. Firmware can reprogram itself without external tools, enabling field updates and parameter tuning. The memory protection mechanism allows selective locking of boot sectors while leaving user sectors writable.
What is the maximum output current on PA0, and can it drive an IR LED directly?
PA0 is rated for up to 20 mA sink current at VDD ≥ 2.4 V, with VOL ≤ 0.4 V. It supports direct connection of standard 850 nm IR LEDs (e.g., Vishay TSAL6100) using a 100 Ω series resistor at 3.0 V - eliminating external transistor drivers and reducing BOM count.
Is the SWIM interface compatible with standard ST-LINK programmers?
Yes, STM8L101F3P6TR is fully supported by ST-LINK/V2 and ST-LINK/V2-1 debuggers via the SWIM pin. No level-shifting or adapter is needed; ST's STM8CubeProgrammer software provides drag-and-drop flashing, memory dump, and real-time variable watch over SWIM at up to 2 MHz.
How does the auto-wakeup unit (AWU) interact with the 38 kHz LSI oscillator?
The AWU uses the internal 38 kHz LSI oscillator as its timebase, generating wakeup events at intervals from 122 µs to 16.8 s. It operates independently in Halt mode, consuming only ~0.2 µA extra, and triggers an interrupt without CPU clock restart - enabling periodic sensor sampling with minimal energy overhead.
STM8L101F3P6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- STM8L EnergyLite
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- STM8
- Core Size:
- 8-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- Infrared, POR, PWM, WDT
- Number of I/O:
- 18
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 1.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM8L101F3P6TR FAQ
1.How can I place an order for STM8L101F3P6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8L101F3P6TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM8L101F3P6TR reliable?
The price and inventory of STM8L101F3P6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8L101F3P6TR is usually 5 days.
3.What payment methods are accepted for STM8L101F3P6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8L101F3P6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8L101F3P6TR?
STM8L101F3P6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8L101F3P6TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM8L101F3P6TR?
For technical support, including STM8L101F3P6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8L101F3P6TR requirements.
6.How does Aetrix verify that STM8L101F3P6TR is sourced from the original manufacturer or authorized distributors?
All STM8L101F3P6TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM8L101F3P6TR meets industry standards.
7.What is the process for return or replacement of STM8L101F3P6TR?
All STM8L101F3P6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM8L101F3P6TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM8L101F3P6TR part is unused and in its original packaging.
Return procedure for STM8L101F3P6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM8L101F3P6TR Tags
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