My Inquiry
My Account
STMicroelectronics STM32L443VCI6
.jpg)
- Part No.:
- STM32L443VCI6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-UFBGA
- Datasheet:
-
STM32L443VCI6.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 100UFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,126
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32L443VCI6 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-designed for battery-powered wearable health monitors requiring real-time sensor fusion, secure data logging, and segment LCD display.
For engineers reviewing the STM32L443VCI6 datasheet, STM32L443VCI6 pinout, STM32L443VCI6 application, or STM32L443VCI6 equivalent, key selection criteria include sub-µA shutdown current (8 nA), 12-bit ADC at 5 Msps with hardware oversampling, dual 12-bit DACs, LPUART wake-up capability in Stop 2 mode, and UFBGA64 package compatibility with high-density PCB layouts.
Technical Context
This MCU integrates an Adaptive Real-Time Accelerator (ART Accelerator™) enabling zero-wait-state execution from flash at 80 MHz, delivering 100 DMIPS and 3.42 CoreMark/MHz. Its FlexPowerControl architecture supports seven low-power modes-including Shutdown (8 nA), Standby with RTC (280 nA), and Stop 2 (1.28 µA)-with 4 µs wake-up latency.
The analog subsystem includes a 12-bit ADC (5 Msps, 200 µA/Msps), two 12-bit DACs with sample-and-hold, one operational amplifier with programmable gain, and two ultra-low-power comparators-all supplied from an independent analog rail for noise isolation and precision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions; enables floating-point math for sensor algorithms without external coprocessor. |
| Max Clock Frequency | 80 MHz; supported by ART Accelerator for deterministic real-time response in motor control or audio processing. |
| Flash / SRAM | 256 KB single-bank flash with readout protection; 64 KB SRAM (16 KB with hardware parity) for robust firmware and data buffers. |
| Low-Power Modes | Shutdown: 8 nA (5 wakeup pins); Stop 2: 1.28 µA with RTC; enables multi-year battery life in IoT endpoints. |
| Analog Peripherals | 1× 12-bit ADC (5 Msps, hardware oversampling to 16-bit), 2× 12-bit DACs, 1× OPAMP, 2× comparators-supports analog front-end for biosignal acquisition. |
| Connectivity | USB 2.0 FS (crystal-less), CAN 2.0B, SAI, 4× USART, LPUART, 3× SPI, 3× I²C, SDMMC, SWPMI-enables wired/wireless coexistence and peripheral bridging. |
| Security & Crypto | AES-128/256 hardware accelerator + TRNG + 96-bit unique ID-meets basic requirements for encrypted firmware updates and device authentication. |
| Package | UFBGA64 (5 × 5 mm, 0.5 mm pitch); supports automated assembly and compact wearable form factors. |
Pinout & Package
STM32L443VCI6 uses a 64-pin Ultra-Fine Pitch Ball Grid Array (UFBGA64) package with 0.5 mm ball pitch and 5 × 5 mm body size, optimized for space-constrained portable designs. Pin functions are validated per STMicroelectronics DS11421 Rev 6, Section 4 ("Pinouts and pin description"), specifically Table 14 ("STM32L443xx pin definitions") for the UFBGA64 variant (A019).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | 1.71–3.6 V operation; decoupling required per layout guidelines to maintain low-noise analog performance. |
| VDDA, VSSA | Analog power and ground | Independent analog domain supply; isolates sensitive ADC/DAC/OPAMP circuits from digital switching noise. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15 | General-purpose I/Os | Up to 83 fast I/Os (most 5 V-tolerant); support multiple alternate functions including USB, CAN, SAI, and LCD segment/com drivers. |
| PF0–PF15 | Additional GPIOs & LCD pins | Support LCD 8×40/4×44 configuration; PF10–PF15 serve as LCD common outputs in UFBGA64 package. |
| OSC_IN/OSC_OUT | HSE crystal oscillator input/output | Supports 4–48 MHz external crystal; critical for USB timing accuracy and system clock stability. |
| LSE_IN/LSE_OUT | RTC 32.768 kHz crystal interface | Enables calendar RTC with ±20 ppm accuracy; required for time-stamped sensor logging during deep sleep. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; compatible with push-button or supervisor IC reset assertion. |
| BOOT0 | Boot mode selection | High at power-up selects system memory bootloader; used for field firmware recovery via USART. |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Eight low-power modes with sub-µA quiescent currents-enables multi-year operation on coin-cell batteries in medical wearables. |
| ART Accelerator™ | Zero-wait-state execution from flash at 80 MHz-eliminates cache misses in real-time control loops without SRAM code duplication. |
| Batch Acquisition Mode (BAM) | Permits peripheral-triggered ADC/DAC conversions while CPU remains in Stop mode-reduces active time and extends battery life. |
| Integrated LCD controller | Drives up to 8×40 segments with built-in step-up converter-removes need for external LCD bias supply in portable displays. |
| Capacitive touch sensing (TSC) | 21-channel controller supporting touchkey, linear, and rotary sensors-enables intuitive UI without mechanical buttons or overlays. |
| True Random Number Generator (TRNG) | FIPS-compliant entropy source feeding AES engine-essential for secure key generation in BLE-connected devices. |
Applications
| Wearable Health Monitor | Smart Utility Meter |
|---|---|
Use Scenario: Continuous ECG/PPG signal acquisition, real-time HRV analysis, encrypted local storage, and segmented LCD display in wrist-worn device. IC Role / Device Role / Timing Role: Primary application processor handling sensor interface (ADC/DAC/OPAMP), cryptographic acceleration (AES), RTC timestamping, and LCD driving. Use Value: 8 nA shutdown current and 1.28 µA Stop 2 mode with RTC enable >5-year battery life; integrated LCD controller reduces BOM count by one IC. | Use Scenario: Battery-backed AMR meter collecting voltage/current waveforms, performing harmonic analysis, and transmitting via NB-IoT/LoraWAN. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC sampling, CAN/UART communication to concentrator, secure firmware updates, and tamper detection. Use Value: Dual 12-bit DACs calibrate metrology reference paths; LPUART wake-up from Stop 2 allows immediate response to utility command without polling overhead. |
| Industrial Wireless Sensor Node | Portable Medical Diagnostic Tool |
Use Scenario: Multi-sensor node (temperature, humidity, vibration) operating on primary lithium battery, transmitting data via BLE or Sub-GHz RF to gateway. IC Role / Device Role / Timing Role: Central controller interfacing I²C sensors, running sensor fusion algorithm on Cortex-M4+FPU, managing low-power radio stack, and handling AES-encrypted payload. Use Value: 28 nA Standby mode with 5 wakeup pins allows event-driven operation; 17 communication interfaces simplify integration of diverse transceivers and peripherals. | Use Scenario: Handheld spirometer or glucose meter with analog front-end, touch UI, audio feedback, and USB-C firmware update capability. IC Role / Device Role / Timing Role: Mixed-signal SoC acquiring analog biosignals (ADC+OPAMP+COMP), rendering UI (LCD+TSC), generating tone (SAI), and securing data (AES+TRNG). Use Value: Integrated SAI interface drives mono speaker directly; hardware oversampling (to 16-bit) improves resolution of low-amplitude respiratory flow signals. |
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 |
|---|---|---|---|
| STM32L433RCT6 | Same core and architecture but 128 KB flash, 48 KB SRAM, no LCD controller, and no SAI interface. | Suitable for cost-sensitive sensor nodes where display and audio are unnecessary. | Select when LCD/SAI are unused and BOM cost reduction is prioritized over future feature scalability. |
| STM32L552VET6 | ARMv8-M TrustZone® security, 512 KB flash, 256 KB SRAM, higher active current (110 µA/MHz), and different low-power profile (1.2 µA Stop mode). | Required for applications needing certified secure boot, isolated firmware partitions, or higher compute throughput. | Choose only when PSA Level 1 certification or hardware-enforced memory isolation is mandatory. |
Compared with STM32L433RCT6, the STM32L443VCI6 adds LCD and SAI for HMI-rich devices; versus STM32L552VET6, it trades advanced security for lower static power and proven qualification in extended temperature industrial deployments.
Availability
STM32L443VCI6 is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, industrial wireless sensor nodes, and portable medical diagnostic tools requiring stable component supply across long-lifecycle programs.
Supply support for STM32L443VCI6 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, MEMS, and automotive semiconductors since 1987.
The STM32L4 series targets ultra-low-power embedded applications demanding high performance-per-milliwatt, featuring ST's proprietary FlexPowerControl and ART Accelerator technologies for energy-constrained battery-operated systems.
FAQ
What is the maximum operating temperature range for STM32L443VCI6?
The STM32L443VCI6 is qualified for industrial operation from –40 °C to +85 °C, with extended variants supporting up to +105 °C and +125 °C. The UFBGA64 package (A019) used in this part is specified for the –40 °C to +85 °C range per DS11421 Rev 6, Section 6.3.1.
Does STM32L443VCI6 support USB device functionality without an external crystal?
Yes. The STM32L443VCI6 integrates a USB 2.0 Full-Speed crystal-less solution using its internal 48 MHz clock recovery system (CRS), eliminating the need for an external 48 MHz crystal while maintaining ±0.25% accuracy required for USB compliance.
How many capacitive sensing channels does STM32L443VCI6 provide?
The STM32L443VCI6 includes a dedicated Touch Sensing Controller (TSC) supporting up to 21 capacitive sensing channels, configurable for touchkey, linear touch slider, or rotary touch wheel implementations without external components.
Is the 256 KB flash memory organized in single or dual bank?
The flash memory is organized as a single bank of 256 KB, supporting standard erase operations (page/sector) and write protection features. It does not support true dual-bank swap for seamless firmware updates, unlike some higher-end STM32L4x6 variants.
STM32L443VCI6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-UFBGA
- Series:
- STM32L4
- Packaging:
- Tray
- 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:
STM32L443VCI6 FAQ
1.How can I place an order for STM32L443VCI6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L443VCI6 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 STM32L443VCI6 reliable?
The price and inventory of STM32L443VCI6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L443VCI6 is usually 5 days.
3.What payment methods are accepted for STM32L443VCI6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L443VCI6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L443VCI6?
STM32L443VCI6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L443VCI6 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 STM32L443VCI6?
For technical support, including STM32L443VCI6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L443VCI6 requirements.
6.How does Aetrix verify that STM32L443VCI6 is sourced from the original manufacturer or authorized distributors?
All STM32L443VCI6 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 STM32L443VCI6 meets industry standards.
7.What is the process for return or replacement of STM32L443VCI6?
All STM32L443VCI6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L443VCI6, 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 STM32L443VCI6 part is unused and in its original packaging.
Return procedure for STM32L443VCI6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32L443VCI6 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…
