STM32G441KBU3 STMicroelectronics Integrated Circuit (Quad Flat No-Lead) In Stock
STMicroelectronics STM32G441KBU3 is a 32-bit Arm Cortex-M4 MCU running at 170 MHz with 128 KB Flash, hardware crypto, math accelerator, and integrated ADC and DAC. It integrates floating-point unit and DMA for high-performance mixed-signal applications. Competitively priced and available in stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat No-Lead
- Pin Count
- 33
- Lifecycle
- ACTIVE
- Datasheet
- STM32G441KBU3 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Arm Cortex-M4 core at 170 MHz with FPU and math accelerator for high-throughput DSP and motor-control algorithms
- Hardware cryptographic accelerator enabling AES-256, SHA, and PKA for secure IoT and industrial communication applications
- Integrated ADC and DAC channels with DMA support in a compact QFN package for dense mixed-signal PCB designs
Applications
The STM32G441KBU3 targets motor control, power conversion, and industrial automation applications where 170 MHz Cortex-M4 processing combined with hardware crypto and math acceleration reduces firmware complexity. Its 128 KB Flash, integrated ADC and DAC channels, and DMA make it suitable for inverter drives, SMPS controllers, and smart sensor nodes. Security-conscious IoT edge devices and factory automation units benefit from its on-chip AES and PKA hardware in the compact QFN package.
Specifications
| YTEOL | 9 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | YES |
| CPU Family | CORTEX-M4 |
| Clock Frequency-Max | 48MHz |
| DAC Channels | YES |
| DMA Channels | YES |
| Format | FLOATING POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQCC-N32 |
| Low Power Mode | YES |
| Number of DMA Channels | 12 |
| Number of External Interrupts | 16 |
| Number of I/O Lines | 26 |
| Number of Serial I/Os | 4 |
| Number of Timers | 12 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC32,.2SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| RAM (bytes) | 32768 |
| ROM (words) | 131072 |
| ROM Programmability | FLASH |
| Speed | 150MHz |
| Supply Current-Max | 28mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 1.71V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 3A991.a.2 |
| HTS Code | 8542.31.00.25 |
| Country of Origin | Mainland China, Taiwan |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for STM32G441KBU3:
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 150MHz, CMOS, PQCC32
Frequently Asked Questions
How does the STM32G441KBU3's 170 MHz Cortex-M4 core benefit motor control designs compared to slower MCUs?
Running at 170 MHz with a hardware floating-point unit and math accelerator, the STM32G441KBU3 executes FOC motor-control loops in under 10 µs, enabling precise torque and speed regulation. Its integrated ADC and DAC channels with DMA eliminate CPU overhead during analog sampling, freeing cycles for advanced control algorithms in inverter and servo applications.
Which security features does the STM32G441KBU3 provide for industrial IoT edge nodes?
The STM32G441KBU3 integrates hardware AES-256 encryption, SHA hashing, and a Public Key Accelerator (PKA), enabling TLS 1.3 and secure boot without software overhead. These features, combined with 128 KB Flash and 170 MHz Cortex-M4 performance, make it suitable for factory automation gateways and smart meter endpoints requiring data integrity and authentication.
When is the STM32G441KBU3 a more cost-effective choice than the STM32G474 for compact designs?
For applications needing hardware crypto and a fast Cortex-M4 core but not the full 512 KB Flash or CAN-FD ports of the STM32G474, the STM32G441KBU3 provides 128 KB Flash at 170 MHz in a smaller QFN package at lower unit cost. This makes it a practical fit for single-phase power conversion controllers and secure sensor modules where BOM cost and board area matter.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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