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STMicroelectronics STM32L443CCF6TR
- Part No.:
- STM32L443CCF6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 49-UFBGA, WLCSP
- Datasheet:
-
STM32L443CCF6TR.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 49WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,208
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Product details
Overview
STM32L443CCF6TR from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, 256 KB flash, 64 KB SRAM, USB FS, LCD controller, and hardware AES encryption. It operates at up to 80 MHz (100 DMIPS), supports -40 °C to 85 °C, and achieves 280 nA Standby with RTC-ideal for battery-powered portable medical devices, smart meters, and wearable sensors.
For engineers reviewing the STM32L443CCF6TR datasheet, STM32L443CCF6TR pinout, STM32L443CCF6TR application, or STM32L443CCF6TR equivalent, key selection criteria include its 8 nA Shutdown mode, 12-bit ADC with 5 Msps sampling, dual 12-bit DACs, integrated LCD driver (8×40), and CAN 2.0B interface for industrial telemetry endpoints.
Technical Context
The device integrates an Adaptive Real-time Accelerator (ART™) enabling zero-wait-state execution from flash at 80 MHz, paired with a memory protection unit (MPU) and proprietary code readout protection. Its FlexPowerControl architecture delivers granular low-power modes-including Stop 2 (1.0 µA), Standby with RTC (280 nA), and VBAT mode (200 nA)-with sub-4 µs wake-up latency.
Clock system includes dual PLLs (for system/USB/audio), auto-trimmed multispeed internal oscillator (±0.25%), and dedicated LSE-driven RTC with hardware calendar. Analog subsystem features independent supply rails, 1x operational amplifier with PGA, 2x ultra-low-power comparators, and temperature sensor with factory calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 80 MHz max, 100 DMIPS - enables real-time DSP and control algorithms in resource-constrained edge nodes. |
| Memory | 256 KB flash (single-bank, ROP enabled), 64 KB SRAM (16 KB with parity) - supports secure firmware updates and fault-tolerant data logging. |
| Low-Power Performance | 8 nA Shutdown, 280 nA Standby with RTC - extends 10-year battery life in coin-cell-powered IoT endpoints. |
| Analog Peripherals | 12-bit ADC @ 5 Msps (200 µA/Msps), 2× 12-bit DACs, 1× OPAMP + PGA, 2× comparators - enables high-fidelity sensor signal conditioning without external components. |
| Connectivity | USB 2.0 FS (crystal-less), CAN 2.0B, 4× USART, LPUART, SAI, Quad SPI - supports mixed wired/wireless telemetry gateways with audio feedback capability. |
| Display & Timing | LCD controller (8×40 or 4×44 segments), RTC with HW calendar/alarm/calibration - eliminates external display drivers and timing ICs in portable HMI designs. |
| Security | AES-128/256 hardware accelerator, 96-bit unique ID, true RNG - meets IEC 62443-3-3 SL2 requirements for secure firmware signing and key derivation. |
Pinout & Package
STM32L443CCF6TR is housed in a 48-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch), RoHS-compliant and ECOPACK2 certified. Pin layout supports full peripheral remapping via alternate function registers and includes dedicated VBAT, VREF+, and VREF- pins for precision analog operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | 1.71–3.6 V operation; separate analog/digital domains enable noise-isolated sensor acquisition. |
| VBAT | Backup power input | Supplies RTC and 32×32-bit backup registers during main power loss - critical for tamper-proof time-stamping. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD2, PF0–PF1 | General-purpose I/Os | Up to 83 fast I/Os (most 5 V-tolerant); support capacitive touch sensing on 21 channels for bezel-free UIs. |
| PA9/PA10, PA11/PA12 | USB D+/D− | Crysal-less USB FS interface - eliminates external oscillator, reducing BOM cost and board area by ~3 mm². |
| PD0/PD1 | OSC_IN/OSC_OUT | 4–48 MHz external crystal input - used for precise system clock or USB timing when crystal-less mode is insufficient. |
| PC13–PC15 | RTC oscillator pins | Support 32.768 kHz LSE crystal - enables ±1 ppm RTC accuracy over temperature for energy metering compliance. |
Key Features
| Feature | Design Value |
|---|---|
| Batch Acquisition Mode (BAM) | Enables CPU sleep while peripherals autonomously acquire and preprocess sensor data - cuts active power by >60% in periodic monitoring tasks. |
| ART Accelerator™ | Zero-wait-state flash execution at 80 MHz - eliminates cache misses in deterministic control loops (e.g., motor commutation). |
| Flexible Power Modes | 7 distinct low-power states (Shutdown to Run) with configurable voltage scaling - allows dynamic trade-off between latency and energy per task. |
| Hardware AES Engine | 128/256-bit key encryption with DMA-triggered operation - offloads crypto from CPU, reducing encryption latency to <10 µs per 16-byte block. |
| Capacitive Touch Controller | 21-channel TSC supporting touchkey, linear, and rotary sensors - enables robust, waterproof user interfaces without overlay lenses or mechanical buttons. |
Applications
| Portable Medical Monitor | Smart Energy Meter |
|---|---|
Use Scenario: Wearable ECG patch with real-time waveform analysis and Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Main controller executing signal filtering (via FPU), driving segmented LCD display, and managing USB/SAI audio alerts. Use Value: 280 nA Standby with RTC ensures >5-year shelf life; integrated OPAMP+PGA conditions raw electrode signals without external amplifiers. | Use Scenario: DIN-rail mounted electricity meter with tariff switching, tamper detection, and PLC communication. IC Role / Device Role / Timing Role: System-on-chip handling metrology ADC interface, LCD UI, CAN-based grid communication, and secure firmware updates. Use Value: Hardware AES and 96-bit UID meet DLMS/COSEM security mandates; LCD controller drives 4×44-segment display for multi-tariff billing data. |
| Industrial Wireless Sensor Node | Low-Power Human-Machine Interface |
Use Scenario: Battery-powered vibration sensor node transmitting FFT data via LoRaWAN gateway. IC Role / Device Role / Timing Role: Edge AI inference host (TinyML), accelerometer interface, LPUART wake-up trigger, and CAN bus diagnostics port. Use Value: 8 nA Shutdown mode extends 10-year battery life; 4 µs wake-up from Stop mode captures transient events missed by higher-latency MCUs. | Use Scenario: Touch-enabled thermostat with ambient light sensing and local PID control. IC Role / Device Role / Timing Role: Capacitive touch controller, temperature sensor interface, LCD driver, and HVAC actuator PWM generator. Use Value: 21-channel TSC supports slider + button + proximity detection on single PCB layer; integrated 12-bit DAC drives analog output for legacy HVAC systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L433CCU6 | Same package and core, but 128 KB flash, no USB FS, no LCD controller | Suitable for cost-sensitive sensor nodes without display or USB connectivity | Select when display, USB, or >128 KB code space is unnecessary - saves $0.35/unit at 10k volume. |
| STM32L552RET6 | ARM Cortex-M33 with TrustZone, 512 KB flash, 256 KB SRAM, but higher 1.2 µA Stop mode current | Required for PSA Certified Level 2 secure boot and encrypted storage in regulated environments | Choose only if hardware-enforced isolation and cryptographic key management are mandatory - adds complexity and cost. |
Compared with STM32L433CCU6, the STM32L443CCF6TR adds USB FS and LCD support at identical footprint; versus STM32L552RET6, it trades security certification for 4× lower Stop-mode current and simpler firmware development.
Availability
STM32L443CCF6TR is available at Aetrix Electronics and suitable for portable medical monitors, smart energy meters, industrial wireless sensor nodes, and low-power human-machine interfaces requiring stable component supply across multi-year production cycles.
Supply support for STM32L443CCF6TR 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, specializing in microcontrollers, power management, and sensing technologies for industrial, automotive, and consumer markets.
The STM32L4 series targets ultra-low-power embedded applications demanding high performance-per-microwatt, with design focus on battery longevity, integrated analog front-ends, and secure firmware execution in constrained-edge devices.
FAQ
What is the maximum operating frequency and associated DMIPS rating?
The STM32L443CCF6TR runs at up to 80 MHz with an Arm Cortex-M4 core featuring FPU and ART Accelerator™, delivering 100 DMIPS (1.25 DMIPS/MHz). This performance level is validated under full voltage scaling (VOS0) and measured using the Dhrystone 2.1 benchmark with cache enabled and prefetch disabled.
Does this MCU support crystal-less USB Full-Speed operation?
Yes, the STM32L443CCF6TR integrates a USB 2.0 Full-Speed transceiver with built-in clock recovery system (CRS), enabling crystal-less operation. It uses the internal 48 MHz RC oscillator trimmed by the LSE (32.768 kHz) to maintain ±0.25% accuracy - sufficient for USB FS compliance without external crystal or oscillator components.
How many capacitive sensing channels does the TSC support, and what configurations are possible?
The Touch Sensing Controller (TSC) supports up to 21 capacitive sensing channels, configurable for touchkey, linear touch sensor (slider), or rotary touch sensor (wheel) implementations. All channels share a single charge-transfer measurement engine and support automatic recalibration, making it suitable for waterproof or glove-operated interfaces in harsh environments.
What are the key differences between Stop 2 mode and Standby mode in terms of power consumption and wake-up capability?
Stop 2 mode consumes 1.0 µA (1.28 µA with RTC) and retains SRAM and register contents; wake-up sources include all EXTI lines and peripheral events. Standby mode draws 280 nA with RTC active and preserves only RTC and 32×32-bit backup registers - wake-up is limited to WKUP pins, RTC alarm, or tamper event, making it optimal for long-term dormancy with time-triggered resumption.
STM32L443CCF6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 49-UFBGA, WLCSP
- Series:
- STM32L4
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, PWM, WDT
- Number of I/O:
- 83
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L443CCF6TR FAQ
1.How can I place an order for STM32L443CCF6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L443CCF6TR 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 STM32L443CCF6TR reliable?
The price and inventory of STM32L443CCF6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L443CCF6TR is usually 5 days.
3.What payment methods are accepted for STM32L443CCF6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L443CCF6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L443CCF6TR?
STM32L443CCF6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L443CCF6TR 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 STM32L443CCF6TR?
For technical support, including STM32L443CCF6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L443CCF6TR requirements.
6.How does Aetrix verify that STM32L443CCF6TR is sourced from the original manufacturer or authorized distributors?
All STM32L443CCF6TR 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 STM32L443CCF6TR meets industry standards.
7.What is the process for return or replacement of STM32L443CCF6TR?
All STM32L443CCF6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L443CCF6TR, 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 STM32L443CCF6TR part is unused and in its original packaging.
Return procedure for STM32L443CCF6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32L443CCF6TR Tags
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