My Inquiry
My Account
STMicroelectronics STM8L151C8T6
- Part No.:
- STM8L151C8T6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM8L151C8T6.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:888
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM8L151C8T6 from STMicroelectronics is an 8-bit ultra-low-power microcontroller featuring 64 KB Flash, 2 KB data EEPROM, RTC, LCD controller, 12-bit ADC (1 Msps, 28 channels), dual 12-bit DACs, and three USARTs. It operates from 1.65–3.6 V across –40 to +85 °C and targets battery-powered metering, portable medical devices, and smart sensors requiring sub-µA sleep current.
For engineers reviewing the STM8L151C8T6 datasheet, STM8L151C8T6 pinout, STM8L151C8T6 application, or STM8L151C8T6 equivalent, key selection criteria include active-halt mode current (1.4 µA with full RTC), 47 µs wake-up time from Halt, 67 GPIOs with capacitive sensing support, and LQFP48 package compatibility for space-constrained designs.
Technical Context
The STM8L151C8T6 implements a Harvard-architecture STM8 core with 3-stage pipeline, delivering 16 CISC MIPS at 16 MHz. Its clock system integrates dual crystal oscillators (32 kHz LSE + 1–16 MHz HSE), factory-trimmed 16 MHz RC, and clock security monitoring.
Power management includes five low-power modes-Wait, Low-power Run (5.9 µA), Low-power Wait (3 µA), Active-Halt (1.4 µA with RTC), and Halt (400 nA)-with fast wake-up (4.7 µs) and per-pin leakage as low as 50 nA. The RTC supports BCD calendar, digital calibration (±0.5 ppm), and anti-tamper detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | STM8 8-bit Harvard core with 3-stage pipeline; enables deterministic real-time execution and efficient code density. |
| Max Clock Frequency | 16 MHz; delivers 16 CISC MIPS peak performance suitable for sensor fusion and protocol stack handling. |
| Flash / EEPROM | 64 KB Flash with RWW and ECC; 2 KB data EEPROM with ECC; supports field firmware updates without data loss. |
| ADC Resolution & Speed | 12-bit SAR ADC up to 1 Msps across 28 channels; includes internal reference and temperature sensor for self-calibration. |
| DAC Channels | Dual 12-bit DACs with output buffers; supports simultaneous dual-mode operation for analog waveform generation. |
| Low-Power Halt Current | 400 nA at 3.0 V; enables multi-year battery life in always-on sensing nodes with periodic wake-up triggers. |
| RTC Accuracy | ±0.5 ppm with digital calibration; eliminates external TCXO in precision timekeeping applications like utility meters. |
| I/O Count | Up to 67 I/Os, all mappable to interrupt vectors; supports capacitive touch (16 channels) and LED driving on PA0. |
Pinout & Package
LQFP48 (7 × 7 mm, 0.5 mm pitch) package with exposed thermal pad; 48-pin quad flat leaded package optimized for reflow assembly and thermal dissipation in compact industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply input | Accepts 1.65–3.6 V; powers core, memories, and most peripherals; requires local 100 nF decoupling. |
| VSS | Ground reference | Digital ground plane connection; must be low-impedance and tied to analog ground at single point. |
| NRST | Active-low reset input | Asynchronous reset with programmable BOR threshold; supports external push-button or supervisor IC assertion. |
| PA0–PA7 | General-purpose I/O bank A | Includes high-sink LED driver capability on PA0; supports capacitive sensing, EXTI, and analog inputs (ADC/DAC). |
| PB0–PB7 | General-purpose I/O bank B | Features DAC outputs on PB4–PB6; supports SPI/I2C/USART alternate functions and tamper detection. |
| PC0–PC7 | General-purpose I/O bank C | Includes RTC alarm output (PC7); supports LCD segment drive (in compatible variants) and timer capture/compare. |
| PD0–PD7 | General-purpose I/O bank D | Supports USART2/3 TX/RX, SPI2, and comparator inputs; enables flexible peripheral routing via system configuration controller. |
| OSC_IN / OSC_OUT | HSE crystal oscillator interface | Drives external 1–16 MHz quartz; used for precise timing, USB clock derivation (not applicable here), or high-speed peripheral sync. |
| LSI / LSE | Low-speed internal/external oscillators | LSE (32.768 kHz) drives RTC; LSI (38 kHz RC) provides backup clock during main supply loss. |
| SWIM | Single-wire interface for debug | Enables non-intrusive programming and real-time debugging over one pin; no JTAG required. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power Halt mode | 400 nA consumption with RAM retention and wake-up on EXTI or RTC alarm-enables decade-scale coin-cell operation. |
| Dual 12-bit DAC with buffer | Simultaneous voltage outputs on PB4–PB6; eliminates need for external DACs in analog actuator control or sensor biasing. |
| Capacitive touch sensing | 16-channel hardware-accelerated CSD supporting touchkey, proximity, and rotary interfaces-reduces firmware overhead and EMI susceptibility. |
| Flexible clock security | Detects HSE/LSE failure and automatically switches to LSI or disables clocks; prevents erratic behavior in mission-critical timing paths. |
| 96-bit unique ID | Factory-programmed serial number accessible via memory-mapped register; enables secure device authentication and license binding. |
| SWIM debug interface | Single-pin, non-intrusive programming and run-time debugging-saves PCB space and simplifies production test fixture design. |
Applications
| Smart Utility Metering | Portable Medical Sensors |
|---|---|
Use Scenario: Battery-powered gas/water/electricity meters with daily RF reporting and tamper detection. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, LCD display, and secure communication via USART+IrDA. Use Value: Active-halt mode (1.4 µA with RTC) extends 10-year battery life; anti-tamper detection triggers immediate alert on enclosure breach. | Use Scenario: Wearable ECG/SpO₂ monitors requiring continuous analog front-end sampling and low-latency Bluetooth LE handoff. IC Role / Device Role / Timing Role: Signal acquisition hub digitizing analog biosignals via 12-bit ADC, buffering data in 4 KB RAM, and triggering BLE module wake-up via GPIO. Use Value: 1 Msps ADC resolution captures QRS complex fidelity; 4.7 µs wake-up ensures <10 µs latency from motion interrupt to sampling start. |
| Industrial Wireless Sensor Nodes | Home Automation Controllers |
Use Scenario: LoRaWAN-enabled temperature/humidity/pressure nodes deployed in HVAC ducts or remote facilities. IC Role / Device Role / Timing Role: Environmental data aggregator using internal temp sensor and external I²C sensors, then formatting payloads for SPI-connected transceiver. Use Value: 3 µA low-power wait mode minimizes quiescent draw between 15-minute readings; 67 GPIOs allow direct connection of multiple sensor buses without level shifters. | Use Scenario: Zigbee/Z-Wave lighting controllers with capacitive touch buttons, RGB LED feedback, and relay drivers. IC Role / Device Role / Timing Role: Human interface processor managing 12-key touchpad, PWM-dimming of LEDs via dual DACs, and isolated relay control via GPIO-driven optocouplers. Use Value: Hardware capacitive sensing engine reduces CPU load by 70% vs software-based solutions; PA0's 20 mA sink drives indicator LEDs directly. |
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 |
|---|---|---|---|
| STM8L052C6T6 | 32 KB Flash, 1 KB EEPROM, no RTC or LCD; 32-pin LQFP package | Suitable for simpler sensor nodes without calendar/time-stamping requirements | Select when cost and footprint are prioritized over RTC, LCD, or extended memory. |
| EFM8LB12F64E-B-QFP48 | Silicon Labs 8051 core; 64 KB Flash, 4.2 µA low-power mode; no integrated LCD or capacitive sensing | Better RF coexistence for mixed-signal IoT gateways; lacks hardware touch engine | Choose for designs requiring integrated USB or higher analog integration (e.g., op-amps), but accept added toolchain complexity. |
Compared with STM8L052C6T6 and EFM8LB12F64E-B-QFP48, the STM8L151C8T6 uniquely combines RTC accuracy (±0.5 ppm), capacitive touch hardware, and 64 KB Flash in LQFP48-making it optimal for time-aware, touch-enabled, long-life embedded systems where peripheral integration reduces BOM count.
Availability
STM8L151C8T6 is available at Aetrix Electronics and suitable for smart metering, portable diagnostics, and industrial wireless sensor networks requiring stable component supply and long-term lifecycle assurance.
Supply support for STM8L151C8T6 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 ICs, sensors, and automotive chips since 1987.
The STM8L ultra-low-power MCU family targets battery-operated and energy-harvesting applications demanding sub-µA sleep currents, integrated analog peripherals, and robust real-time operation across extended temperature ranges.
FAQ
What is the maximum operating frequency and corresponding power consumption in Run mode?
The STM8L151C8T6 achieves 16 MHz maximum clock frequency. At 16 MHz and 3.0 V, typical active current is 200 µA/MHz + 330 µA = 3.53 mA. This includes core, Flash, RAM, and enabled peripherals; actual draw scales linearly with active peripheral count and voltage.
Does the device support hardware-accelerated capacitive touch sensing?
Yes-it integrates a dedicated capacitive sensing controller supporting up to 16 channels. It handles charge-transfer measurement, baseline tracking, and noise filtering in hardware, freeing the CPU for application logic. Supported topologies include touchkey, linear slider, rotary wheel, and proximity detection.
Can the internal RTC maintain time accuracy without an external 32.768 kHz crystal?
No-the RTC requires the LSE (32.768 kHz external crystal) for ±0.5 ppm accuracy. The internal LSI (38 kHz RC) may serve as a backup clock source but introduces ±10% frequency error and is unsuitable for calendar or billing applications.
What debug interface does the STM8L151C8T6 use, and is JTAG supported?
It uses SWIM (Single-Wire Interface Module), a proprietary ST interface requiring only one pin (SWIM) plus ground. JTAG is not supported; SWIM enables full flash programming, breakpoint setting, and real-time variable inspection without impacting GPIO count or board layout.
STM8L151C8T6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-LQFP
- Series:
- STM8L EnergyLite
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- STM8
- Core Size:
- 8-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, IR, POR, PWM, WDT
- Number of I/O:
- 41
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 25x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM8L151C8T6 FAQ
1.How can I place an order for STM8L151C8T6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8L151C8T6 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 STM8L151C8T6 reliable?
The price and inventory of STM8L151C8T6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8L151C8T6 is usually 5 days.
3.What payment methods are accepted for STM8L151C8T6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8L151C8T6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8L151C8T6?
STM8L151C8T6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8L151C8T6 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 STM8L151C8T6?
For technical support, including STM8L151C8T6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8L151C8T6 requirements.
6.How does Aetrix verify that STM8L151C8T6 is sourced from the original manufacturer or authorized distributors?
All STM8L151C8T6 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 STM8L151C8T6 meets industry standards.
7.What is the process for return or replacement of STM8L151C8T6?
All STM8L151C8T6 units undergo pre-shipment inspection (PSI). If there is an issue with STM8L151C8T6, 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 STM8L151C8T6 part is unused and in its original packaging.
Return procedure for STM8L151C8T6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM8L151C8T6 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
