My Inquiry
My Account
STMicroelectronics STM32F423RHT6TR
- Part No.:
- STM32F423RHT6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32F423RHT6TR.pdf
- Description:
- IC MCU 32BIT 1.5MB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,388
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32F423RHT6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 100 MHz max CPU frequency, 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 audio processing, secure firmware updates, and low-power human interface devices.
For engineers reviewing the STM32F423RHT6TR datasheet, STM32F423RHT6TR pinout, STM32F423RHT6TR application, or STM32F423RHT6TR equivalent, key selection criteria include its 64-pin LQFP package, 12-bit 2.4 MSPS ADC, DFSDM-based PDM microphone interface, eBAM power efficiency mode, and -40 °C to +105 °C industrial temperature grade.
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 operation. Its dual-mode Quad-SPI and flexible static memory controller support external PSRAM/NOR for extended data buffering in edge-sensing applications.
The device embeds two 12-bit DACs with configurable output buffers, one 12-bit 2.4 MSPS ADC with up to 16 channels, and six digital filters for sigma-delta modulators (DFSDM) - enabling stereo PDM microphone acquisition and sound source localization without external DSP.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 100 MHz max - enables deterministic real-time control and floating-point math for motor control or sensor fusion. |
| Flash / SRAM | 1.5 MB flash / 320 KB SRAM - supports complex firmware stacks with OTA update partitioning and large audio buffer allocation. |
| Analog Peripherals | 1×12-bit 2.4 MSPS ADC, 2×12-bit DACs - suitable for closed-loop analog feedback and high-fidelity audio waveform generation. |
| Digital Filters | 6× DFSDM channels - directly interfaces PDM microphones for voice UI or acoustic event detection without external decimation logic. |
| Security | 128/256-bit AES accelerator + TRNG - enables authenticated boot, encrypted firmware storage, and secure key derivation. |
| Power Modes | Stop mode: 15 µA (Deep power down), Standby: 1.1 µA - extends battery life in always-on sensor nodes and wearable devices. |
| Temperature Range | -40 °C to +105 °C - qualified for industrial automation, automotive cabin electronics, and outdoor IoT gateways. |
| Package | LQFP64 (10 × 10 mm, 0.5 mm pitch) - compatible with standard PCB assembly processes and offers 51 GPIOs with 5 V tolerance. |
Pinout & Package
LQFP64 package with exposed thermal pad; 64-pin quad flat pack, 10 × 10 mm body, 0.5 mm lead pitch, ECOPACK®2 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Core power supply / ground | 1.7–3.6 V main domain; requires local 100 nF + 4.7 µF decoupling per VDD pair. |
| VCAP_1, VCAP_2 | Internal regulator bypass | Connect 2.2 µF ceramic capacitors to stabilize internal 1.2 V core voltage; mandatory for reliable 100 MHz operation. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 51 5 V-tolerant GPIOs; many support multiple alternate functions including USART, SPI, I2S, and DFSDM clock/data lines. |
| PA4, PA5 | SPI1 MOSI/MISO | Primary SPI interface for display driver or sensor communication; supports up to 50 Mbit/s in full-duplex mode. |
| PA9, PA10 | USART1 TX/RX | Default debug console interface; supports LIN, IrDA, and modem control signals for industrial diagnostics. |
| PA11, PA12 | USB_OTG_FS DM/DP | Dedicated full-speed USB 2.0 transceiver pins - no external PHY required; supports device/host/OTG roles. |
| PC0–PC5 | ADC1_IN0–IN5 | Analog input channels mapped to 12-bit ADC; support differential sampling and hardware oversampling for enhanced resolution. |
| PA4, PA5 | DAC1_OUT1 / DAC2_OUT1 | Independent buffered analog outputs; each supports noise shaping and configurable trigger sources for waveform synthesis. |
Key Features
| Feature | Design Value |
|---|---|
| eBAM (enhanced Batch Acquisition Mode) | Reduces ADC/DAC power by >40% during burst sampling - critical for battery-powered acoustic monitoring. |
| ART Accelerator™ | Enables 0-wait-state 100 MHz execution from flash - eliminates external RAM dependency for deterministic real-time code. |
| DFSDM with PDM support | 6 independent sigma-delta filters with stereo PDM input - enables multi-microphone beamforming on-chip. |
| Flexible static memory controller | Supports NOR/PSRAM with 16-bit bus - allows direct connection of external display frame buffers or logging memory. |
| AES-128/256 hardware engine | Encrypts/decrypts 16-byte blocks in <10 cycles - accelerates TLS handshake and firmware image verification. |
| Low-power timer (LPTIM1) | Asynchronous 16-bit counter running from 32 kHz LSE - provides precise wake-up timing while consuming <150 nA. |
Applications
| Smart Home Voice Hub | Industrial HMI Panel |
|---|---|
Use Scenario: Compact wall-mounted voice assistant with far-field microphone array and local wake-word detection. IC Role / Device Role: Primary application processor handling PDM microphone acquisition, audio preprocessing, and USB-C HID communication. Use Value: On-chip DFSDM and AES enable real-time beamforming and secure OTA updates without external DSP or crypto IC. | Use Scenario: Touch-enabled operator interface for PLC-controlled machinery with local data logging and alarm reporting. IC Role / Device Role: Main controller managing LCD parallel interface, SDIO-based microSD logging, and CAN bus machine status monitoring. Use Value: Integrated LCD controller and dual CAN interfaces reduce BOM count; 105 °C rating ensures reliability in cabinet-mounted enclosures. |
| Portable Medical Sensor | Energy Metering Gateway |
Use Scenario: Battery-powered ECG/SpO₂ monitor with Bluetooth LE connectivity and clinical-grade analog front-end. IC Role / Device Role: Signal acquisition and processing unit interfacing analog sensors, driving OLED display, and managing secure BLE link. Use Value: Ultra-low standby current (1.1 µA) and integrated 12-bit ADC with hardware oversampling meet IEC 60601 leakage current requirements. | Use Scenario: DIN-rail mounted gateway aggregating smart meter data via RS-485 Modbus and forwarding via Ethernet or cellular. IC Role / Device Role: Protocol translation engine with UART-to-Ethernet bridging, AES-encrypted data packaging, and RTC-backed time-stamping. Use Value: Hardware RTC with subsecond accuracy and 128-bit unique ID ensure traceable, tamper-resistant energy billing logs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F413RHT6 | Same LQFP64 package; 1 MB flash, 256 KB SRAM, no DFSDM, single DAC | Lacks PDM microphone support and hardware AES - unsuitable for voice UI or secure firmware signing | Select when cost-sensitive designs omit audio acquisition and cryptographic acceleration. |
| STM32G474RET6 | Arm Cortex-M4 @ 170 MHz; 512 KB flash, 128 KB SRAM; includes advanced analog (op-amps, comparators), no USB OTG | Higher analog integration but no USB host/OTG or DFSDM - better for motor control than voice edge processing | Prefer for mixed-signal control loops requiring op-amp-based signal conditioning over audio interface capability. |
Compared with STM32F423RHT6TR, STM32F413RHT6 trades DFSDM and AES for lower cost and reduced memory, while STM32G474RET6 emphasizes analog precision and CPU speed at the expense of audio subsystems and USB connectivity - making the F423RHT6TR uniquely balanced for secure, low-power voice-enabled edge nodes.
Availability
STM32F423RHT6TR is available at Aetrix Electronics and suitable for industrial HMI, portable medical sensors, smart home voice hubs, and energy metering gateways requiring stable component supply across long-lifecycle deployments.
Supply support for STM32F423RHT6TR 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.
The STM32F4 series targets high-performance embedded applications demanding real-time processing, rich peripheral integration, and industrial-grade reliability - with the F423 variant optimized for audio-centric, security-aware, and ultra-low-power use cases.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32F423RHT6TR achieves 100 MHz CPU frequency using its Adaptive Real-time Accelerator (ART Accelerator™), which enables zero-wait-state execution from internal flash memory. This eliminates performance penalties from flash latency and avoids the need for external SRAM to sustain peak throughput in real-time control loops.
Does this MCU support PDM microphone interfaces without external components?
Yes - the integrated Digital Filter for Sigma-Delta Modulators (DFSDM) provides six independent channels capable of directly acquiring stereo PDM microphone streams. Each channel includes programmable decimation, noise shaping, and offset calibration, enabling on-chip beamforming and voice activity detection without external DSP or ADC.
What are the key power-saving features for battery-operated devices?
Key low-power features include Stop mode with 15 µA (Deep power down), Standby mode at 1.1 µA, and the eBAM peripheral acquisition mode that reduces ADC/DAC power by over 40% during burst sampling. The LPTIM1 timer operates asynchronously from the 32 kHz LSE, enabling precise wake-up intervals below 150 nA.
Is USB OTG functionality supported in both device and host modes?
Yes - the integrated USB 2.0 full-speed OTG controller supports device, host, and OTG roles with an embedded PHY. Pins PA11 (DM) and PA12 (DP) provide direct USB connectivity; no external transceiver is needed. The controller supports standard class drivers including CDC, HID, MSC, and custom vendor classes.
STM32F423RHT6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32F4
- Packaging:
- Tape & Reel (TR)
- 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, QSPI, SAI, SPI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT
- Number of I/O:
- 50
- 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 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F423RHT6TR FAQ
1.How can I place an order for STM32F423RHT6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F423RHT6TR 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 STM32F423RHT6TR reliable?
The price and inventory of STM32F423RHT6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F423RHT6TR is usually 5 days.
3.What payment methods are accepted for STM32F423RHT6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F423RHT6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F423RHT6TR?
STM32F423RHT6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F423RHT6TR 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 STM32F423RHT6TR?
For technical support, including STM32F423RHT6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F423RHT6TR requirements.
6.How does Aetrix verify that STM32F423RHT6TR is sourced from the original manufacturer or authorized distributors?
All STM32F423RHT6TR 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 STM32F423RHT6TR meets industry standards.
7.What is the process for return or replacement of STM32F423RHT6TR?
All STM32F423RHT6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F423RHT6TR, 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 STM32F423RHT6TR part is unused and in its original packaging.
Return procedure for STM32F423RHT6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F423RHT6TR 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…
