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STMicroelectronics STM32F446ZCT6JTR
- Part No.:
- STM32F446ZCT6JTR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
STM32F446ZCT6JTR.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,405
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Product details
Overview
STM32F446ZCT6JTR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, operating up to 180 MHz (225 DMIPS), featuring 512 KB flash, 128+4 KB RAM, dual USB OTG (FS/HS), three 12-bit ADCs (7.2 MSPS in triple interleaved mode), and two 12-bit DACs. It targets high-performance industrial control, audio processing, and USB-connected embedded systems requiring real-time signal handling and rich peripheral integration.
For engineers reviewing the STM32F446ZCT6JTR datasheet, STM32F446ZCT6JTR pinout, STM32F446ZCT6JTR application, or STM32F446ZCT6JTR equivalent, key selection considerations include its LQFP144 package, 114 GPIOs (112 5 V-tolerant), 20 communication interfaces (including 2× CAN 2.0B, 4× SPI, 4× USART, 2× SAI), and support for external memory via FMC and QuadSPI.
Technical Context
The STM32F446ZCT6JTR integrates an Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from flash at 180 MHz. Its memory subsystem includes flexible external memory controller (FMC) supporting SRAM, PSRAM, NOR/NAND, and SDRAM, plus dual-mode QuadSPI for high-speed serial flash.
It implements dual USB controllers - one full-speed OTG with on-chip PHY, one high-speed/full-speed OTG with dedicated DMA and ULPI interface - alongside two independent SAI peripherals for multi-channel audio I/O and SPDIF-Rx for digital audio input, all synchronized via dedicated audio PLLs (PLLI2S/PLLSAI).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 180 MHz max, 225 DMIPS - enables real-time DSP and floating-point math without external coprocessor |
| Memory | 512 KB flash + 128 KB SRAM + 4 KB backup SRAM - supports complex firmware, data buffering, and RTC-persistent storage |
| ADC | 3× 12-bit, 2.4 MSPS each; 7.2 MSPS triple interleaved - suitable for multi-sensor acquisition or motor phase current sampling |
| USB | Dual OTG: FS (on-chip PHY) + HS/FS (ULPI/DMA) - allows simultaneous device/host roles and high-bandwidth peripheral connectivity |
| Timers | Up to 17 timers including 2× advanced-control (TIM1/TIM8), 12× general-purpose - supports PWM generation, encoder interfacing, and precise time-critical control |
| I/O | 114 GPIOs, 112 5 V-tolerant, up to 90 MHz toggle - simplifies level-shifting in mixed-voltage systems and high-speed digital interfacing |
| Package | LQFP144 (20 × 20 mm), 0.5 mm pitch - standard surface-mount footprint compatible with automated assembly and thermal management |
Pinout & Package
LQFP144 (20 × 20 mm, 0.5 mm pitch) with exposed thermal pad; 144-pin quad flat pack optimized for signal integrity, thermal dissipation, and PCB routing density in industrial and audio applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Power supply / Ground | 1.7–3.6 V core/I/O rail; multiple pairs ensure low-impedance distribution and noise suppression |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | 114 total GPIOs; most support 5 V tolerance, enabling direct connection to legacy peripherals |
| PC13–PC15 | RTC oscillator inputs | Support 32.768 kHz crystal for hardware calendar and subsecond-accurate timekeeping |
| PA11/PA12 | USB FS D+/D− | Dedicated full-speed USB transceiver pins with integrated PHY - no external components required |
| OTG_HS_* (e.g., PB12–PB15) | USB HS ULPI interface | 8-bit parallel ULPI bus for external high-speed PHY - enables 480 Mbps USB connectivity |
| PD0/PD1 | HSE oscillator inputs | Support 4–26 MHz crystal for precise system clock generation and USB SOF synchronization |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator™ | Enables 0-wait-state 180 MHz execution from flash - eliminates external SRAM need for performance-critical code |
| Flexible Memory Controller (FMC) | 16-bit bus supporting SDRAM, NOR, NAND, PSRAM - enables GUI frame buffers or large data logging without external CPU |
| Dual SAI interfaces | Independent I²S/TDM support with FIFOs and clock generators - allows simultaneous playback and record paths in audio hubs |
| QuadSPI dual-mode | Single/dual/quad-line operation with memory-mapped mode - accelerates boot time and enables XIP for firmware updates |
| VBAT domain | RTC + 20×32-bit backup registers + 4 KB backup SRAM powered by coin cell - retains state during main power loss |
Applications
| Industrial Motor Control | USB Audio Interface |
|---|---|
Use Scenario: Closed-loop servo drive with position feedback, current sensing, and field-oriented control. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, PWM generation (via TIM1/TIM8), ADC sampling (3× ADCs at 7.2 MSPS), and CAN 2.0B communication. Use Value: Integrated high-resolution timers and triple-interleaved ADC enable precise phase current measurement and <1 µs PWM dead-time control. | Use Scenario: USB-powered 2-in/2-out audio interface with ASIO-class latency and sample rate conversion. IC Role / Device Role / Timing Role: USB HS endpoint processor, SAI master for codec interfacing, PLLI2S/PLLSAI clock synthesis for 44.1/48/96 kHz audio domains. Use Value: Dual SAI + dedicated audio PLLs eliminate external clock generators and reduce BOM cost while supporting multi-format audio streaming. |
| Smart Energy Gateway | Medical Data Logger |
Use Scenario: Substation edge node aggregating Modbus RTU, CAN bus, and wireless sensor data for cloud upload. IC Role / Device Role / Timing Role: Protocol gateway with 2× CAN, 4× USART (with IrDA/LIN), SDIO for local storage, and USB OTG for configuration. Use Value: 20 communication interfaces allow concurrent protocol bridging without external bridge ICs or FPGA logic. | Use Scenario: Portable ECG/SpO₂ monitor recording analog biosignals to microSD with timestamped metadata. IC Role / Device Role / Timing Role: Analog front-end controller with 3× ADC channels, RTC calendar, SDIO host, and 4 KB backup SRAM for crash-safe buffer retention. Use Value: On-chip backup SRAM and hardware RTC calendar ensure uninterrupted data capture and accurate event stamping during battery swaps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F407VGT6 | Lower max frequency (168 MHz), no QuadSPI, no SPDIF-Rx, no SAI, smaller flash (1 MB vs 512 KB), same LQFP100 package | Targeted at general-purpose control without audio or high-speed serial flash needs | Select when audio, USB HS, or external SDRAM is unnecessary and cost sensitivity outweighs peripheral richness |
| STM32F746ZGT6 | Higher performance (216 MHz Cortex-M7), larger flash (1 MB), Chrom-ART accelerator, LCD-TFT controller, no FMC | Optimized for GUI-rich HMI applications with display output, not external memory expansion | Select when TFT-LCD driving and higher integer/floating-point throughput are required over FMC or SPDIF functionality |
Compared with STM32F407VGT6, the STM32F446ZCT6JTR adds audio-grade peripherals (SAI, SPDIF-Rx, audio PLLs) and QuadSPI/FMC for external memory - making it superior for USB audio and data-acquisition gateways. Versus STM32F746ZGT6, it trades display capability for broader memory interface flexibility and lower power consumption in audio-centric designs.
Availability
STM32F446ZCT6JTR is available at Aetrix Electronics and suitable for industrial motor control, USB audio interfaces, smart energy gateways, and medical data loggers requiring stable component supply across long-lifecycle production programs.
Supply support for STM32F446ZCT6JTR 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, sensors, and automotive ICs with strong industrial and embedded market focus.
The STM32F446xC/E series is designed for high-performance, feature-rich embedded applications demanding real-time audio processing, USB connectivity, and flexible memory expansion - bridging the gap between general-purpose MCUs and application-specific SoCs.
FAQ
What is the maximum operating temperature range for STM32F446ZCT6JTR?
The STM32F446ZCT6JTR is rated for industrial temperature range: –40 °C to +85 °C ambient. This is confirmed in Section 6.3.1 of DS10693 Rev 11, where electrical characteristics and timing parameters are specified across this full range. The LQFP144 package's thermal resistance (θJA = 30.5 °C/W) supports reliable operation under sustained 180 MHz operation within these limits.
Does STM32F446ZCT6JTR support external SDRAM via the Flexible Memory Controller?
Yes, the STM32F446ZCT6JTR supports external SDRAM through its Flexible Memory Controller (FMC) with 16-bit data bus and dedicated SDRAM command interface. Section 3.9 and Table 6.3.26 in DS10693 Rev 11 confirm timing compliance for standard LPSDR SDRAM devices, enabling use cases such as GUI frame buffers or real-time data streaming buffers.
How many independent clock sources does the device integrate for audio applications?
The STM32F446ZCT6JTR integrates three dedicated clock sources for audio: PLLI2S (for I²S/SAI master clocks), PLLSAI (for SAI asynchronous clocks and SPDIF-Rx), and a separate 32 kHz LSE oscillator for RTC. These are documented in Sections 3.29–3.30 and Table 44–45 of DS10693 Rev 11, enabling simultaneous multi-rate audio streams without jitter or resampling artifacts.
Is the STM32F446ZCT6JTR pin-compatible with other STM32F446 variants in LQFP144?
Yes, all STM32F446xC/E devices in LQFP144 (e.g., STM32F446ZET6, STM32F446ZCT6) share identical pinouts and package dimensions. Table 10 (pin descriptions) and Section 4 (Pinout and pin description) in DS10693 Rev 11 confirm functional pin equivalence across memory variants, allowing drop-in replacement based on flash/RAM requirements without PCB redesign.
STM32F446ZCT6JTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-LQFP
- Series:
- STM32F4
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 180MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, IrDA, LINbus, SAI, SD, SPDIF-Rx, SPI, UART/USART, USB, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, LVD, POR, PWM, WDT
- Number of I/O:
- 114
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 3.6V
- Data Converters:
- A/D 24x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F446ZCT6JTR FAQ
1.How can I place an order for STM32F446ZCT6JTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F446ZCT6JTR 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 STM32F446ZCT6JTR reliable?
The price and inventory of STM32F446ZCT6JTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F446ZCT6JTR is usually 5 days.
3.What payment methods are accepted for STM32F446ZCT6JTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F446ZCT6JTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F446ZCT6JTR?
STM32F446ZCT6JTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F446ZCT6JTR 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 STM32F446ZCT6JTR?
For technical support, including STM32F446ZCT6JTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F446ZCT6JTR requirements.
6.How does Aetrix verify that STM32F446ZCT6JTR is sourced from the original manufacturer or authorized distributors?
All STM32F446ZCT6JTR 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 STM32F446ZCT6JTR meets industry standards.
7.What is the process for return or replacement of STM32F446ZCT6JTR?
All STM32F446ZCT6JTR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F446ZCT6JTR, 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 STM32F446ZCT6JTR part is unused and in its original packaging.
Return procedure for STM32F446ZCT6JTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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