My Inquiry
My Account
STMicroelectronics STM32F423CHU6
- Part No.:
- STM32F423CHU6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
STM32F423CHU6.pdf
- Description:
- IC MCU 32BIT 1.5MB FLSH 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:1,356
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32F423CHU6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 100 MHz max clock, 1.5 MB flash, 320 KB SRAM, and integrated USB OTG FS, dual DACs, and AES hardware encryption. It targets embedded control applications requiring real-time signal processing, low-power operation, and secure firmware execution - such as industrial sensor hubs and portable medical devices.
For engineers reviewing the STM32F423CHU6 datasheet, STM32F423CHU6 pinout, STM32F423CHU6 application, or STM32F423CHU6 equivalent, key selection criteria include its 100 MHz Cortex-M4+FPU performance, 1.5 MB flash density, dual 12-bit DAC support, DFSDM-based PDM audio interface, and WLCSP81 package for space-constrained PCB layouts.
Technical Context
This MCU integrates an Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from flash at 100 MHz, and Dynamic Efficiency Line architecture supporting 1.7–3.6 V supply and -40 °C to 125 °C extended temperature operation. Its eBAM (enhanced Batch Acquisition Mode) optimizes ADC/DAC timing for synchronized analog data capture.
The device features two independent 12-bit DACs with configurable output buffers, one 12-bit 2.4 MSPS ADC with up to 16 channels, six digital filters for sigma-delta modulators (DFSDM), and stereo microphone input support via 12x PDM interfaces - all coordinated by a dedicated low-power timer and DMA controller.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 100 MHz max frequency, 125 DMIPS, ART Accelerator for zero-wait-state flash execution |
| Memory | 1.5 MB embedded flash (programmable in blocks), 320 KB SRAM, 512 B OTP for secure keys or calibration data |
| Analog Peripherals | 1×12-bit 2.4 MSPS ADC (16 channels), 2×12-bit DACs with output buffers, 6×DFSDM filters, 12×PDM interfaces |
| Security & Crypto | Hardware AES-128/256 accelerator, true random number generator (RNG), 96-bit unique ID, CRC calculation unit |
| Power Management | Run: 112 µA/MHz (peripheral off); Stop (Flash in Deep power down): 15 µA typ.; Standby without RTC: 1.1 µA typ. @85 °C |
| Package | WLCSP81 (4.039 × 3.951 mm), 81-ball, 0.4 mm pitch, ECOPACK®2 compliant, suitable for ultra-compact wearable designs |
| Temperature Range | -40 °C to +125 °C ambient operating range, qualified for extended industrial and automotive under-hood environments |
Pinout & Package
STM32F423CHU6 uses a WLCSP81 (Wafer-Level Chip-Scale Package) with 81 solder balls arranged in a 9×9 grid, optimized for minimal PCB footprint and high-density routing. The package supports 114 I/Os (109 fast I/Os up to 50 MHz, 114 5V-tolerant), with dedicated VCAP_1/VCAP_2 pins for internal regulator stabilization.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | 1.7–3.6 V core/I/O supply; multiple VDD/VSS pairs ensure low-noise power delivery and EMI reduction |
| VCAP_1, VCAP_2 | Internal voltage regulator decoupling | Must connect to 2.2 µF ceramic capacitors near package for stable 1.2 V core rail generation |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os with alternate functions | Up to 114 GPIOs support 5V tolerance, interrupt capability, and flexible remapping for UART, SPI, I2C, USB, CAN, SAI, and DFSDM signals |
| BOOT0 | Boot mode selection | Pulled low for main flash boot; pulled high for system memory bootloader entry via USART1 |
| NRST | Active-low reset input | Asynchronous external reset with internal pull-up; compatible with open-drain reset supervisors |
Key Features
| Feature | Design Value |
|---|---|
| eBAM (enhanced Batch Acquisition Mode) | Synchronizes ADC sampling, DAC updates, and DFSDM filtering in single-cycle batches - reduces jitter and improves time-of-flight accuracy in ultrasonic sensing |
| Dual 12-bit DACs with output buffers | Independent voltage outputs with programmable settling time and noise filtering - enables simultaneous analog waveform generation for motor control or audio test signals |
| 6-channel DFSDM with PDM microphone support | Real-time sigma-delta demodulation and digital filtering for up to 12 PDM inputs - enables stereo sound source localization using on-chip correlation algorithms |
| AES-128/256 hardware accelerator | Encrypt/decrypt 128-bit blocks in <10 cycles per byte - accelerates secure OTA firmware updates and encrypted sensor data logging without CPU overhead |
| USB OTG FS with integrated PHY | Full-speed (12 Mbit/s) device/host/OTG operation without external transceiver - supports HID, CDC, and mass storage classes directly from flash-resident firmware |
Applications
| Industrial Sensor Hub | Portable Medical Monitor |
|---|---|
Use Scenario: Aggregating data from multi-axis IMU, temperature, humidity, and gas sensors in predictive maintenance edge node. IC Role / Device Role / Timing Role: Central controller executing sensor fusion algorithms, managing low-power wake-up events, and buffering data before wireless transmission. Use Value: eBAM synchronizes concurrent ADC sampling across 16 channels while DFSDM processes PDM microphone data for acoustic anomaly detection - all within 114 µA/MHz active power envelope. |
Use Scenario: Battery-powered ECG and SpO₂ monitor with real-time waveform display and Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Signal acquisition engine driving dual DACs for reference voltage generation, ADC for analog front-end digitization, and USB OTG for clinical-grade firmware updates. Use Value: Dual 12-bit DACs provide precise bias voltages for analog front-end op-amps; 1.1 µA standby current extends battery life beyond 7 days between charges. |
| Smart Home Audio Endpoint | Automotive Cabin Controller |
Use Scenario: Voice-controlled smart speaker with far-field microphone array and local wake-word detection. IC Role / Device Role / Timing Role: Audio preprocessor handling PDM-to-I2S conversion, beamforming, and keyword spotting before forwarding to cloud-connected host MCU. Use Value: Six DFSDM filters process 12 PDM microphone streams simultaneously; stereo localization algorithms run on Cortex-M4+FPU with <50 µs latency per frame. |
Use Scenario: In-cabin ambient lighting and HVAC control module with CAN bus integration and touch-sensitive HMI. IC Role / Device Role / Timing Role: Real-time coordinator managing CAN 2.0B communication, PWM-driven LED dimming, and capacitive touch sensing via GPIO matrix. Use Value: Three CAN controllers enable redundant bus access; 100 MHz core handles 10 kHz PWM updates and 1 ms CAN message scheduling with deterministic jitter <1 µs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F413CHU6 | Same WLCSP81 package, but 1 MB flash, 256 KB SRAM, no DFSDM, single DAC, no AES accelerator | Lacks PDM audio preprocessing and hardware crypto - unsuitable for secure voice endpoints or encrypted sensor logging | Select when cost-sensitive designs require only basic analog I/O and no cryptographic acceleration or advanced audio filtering |
| STM32L4R5ZIJ6 | ARM Cortex-M4, 120 MHz, 2 MB flash, 640 KB SRAM, no DFSDM, no USB OTG FS, includes LCD-TFT controller | Higher flash/SRAM but lacks USB PHY and DFSDM - better for display-centric IoT gateways than audio/sensor hubs | Prefer for applications needing large code space and graphical UI, where USB device functionality and PDM audio are not required |
Compared with STM32F423CHU6, STM32F413CHU6 trades DFSDM, dual DACs, and AES for lower cost and reduced feature set, while STM32L4R5ZIJ6 prioritizes memory density and display support over audio-specific peripherals and USB device capability.
Availability
STM32F423CHU6 is available at Aetrix Electronics and suitable for industrial sensor hubs, portable medical monitors, smart home audio endpoints, and automotive cabin controllers requiring stable component supply across long-lifecycle programs.
Supply support for STM32F423CHU6 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 specializing in microcontrollers, power management, and analog/mixed-signal ICs, with strong focus on industrial, automotive, and IoT markets.
The STM32F423xH series is designed for high-efficiency, real-time embedded systems demanding rich analog integration, secure firmware execution, and ultra-compact packaging - especially where audio preprocessing, sensor fusion, and low-power operation converge.
FAQ
What is the maximum operating temperature for STM32F423CHU6?
The STM32F423CHU6 is rated for operation from -40 °C to +125 °C ambient temperature, validated per ST's industrial qualification standards. This extended range supports deployment in under-hood automotive modules, industrial PLCs, and outdoor environmental monitoring equipment without derating.
Does STM32F423CHU6 support USB device mode without external components?
Yes - it integrates a full-speed USB 2.0 OTG controller with a built-in PHY, enabling USB device, host, or OTG operation directly from the chip. No external transceiver or level-shifting components are required for standard 12 Mbit/s USB communication.
How many PDM microphone inputs can STM32F423CHU6 handle simultaneously?
The MCU supports up to 12 PDM microphone inputs via its six DFSDM channels (each accepting two PDM streams). All 12 inputs can be processed concurrently with hardware-accelerated filtering, enabling stereo sound source localization and beamforming algorithms in real time.
Is the WLCSP81 package of STM32F423CHU6 compatible with standard reflow profiles?
Yes - the WLCSP81 package complies with JEDEC J-STD-020D moisture sensitivity level 3 and is qualified for standard lead-free reflow profiles (peak temperature ≤260 °C). ST provides detailed board layout guidelines and solder paste recommendations in AN4828 and the package datasheet.
STM32F423CHU6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-UFQFN Exposed Pad
- Series:
- STM32F4
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 100MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, MMC/SD, SAI, SPI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 36
- Program Memory Size:
- 1.5MB (1.5M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 320K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 3.6V
- Data Converters:
- A/D 10x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F423CHU6 FAQ
1.How can I place an order for STM32F423CHU6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F423CHU6 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 STM32F423CHU6 reliable?
The price and inventory of STM32F423CHU6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F423CHU6 is usually 5 days.
3.What payment methods are accepted for STM32F423CHU6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F423CHU6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F423CHU6?
STM32F423CHU6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F423CHU6 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 STM32F423CHU6?
For technical support, including STM32F423CHU6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F423CHU6 requirements.
6.How does Aetrix verify that STM32F423CHU6 is sourced from the original manufacturer or authorized distributors?
All STM32F423CHU6 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 STM32F423CHU6 meets industry standards.
7.What is the process for return or replacement of STM32F423CHU6?
All STM32F423CHU6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F423CHU6, 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 STM32F423CHU6 part is unused and in its original packaging.
Return procedure for STM32F423CHU6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F423CHU6 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…
