STM32F429AGH6TR - 180MHz ARM Cortex-M4 MCU 1MB Flash | STMicroelectronics (Tape & Reel)
MPN: STM32F429AGH6TR ✓ ActiveSTM32F429AGH6TR Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data memory, and a rich set of on-chip peripherals. The STM32F429AGH6TR belongs to the wider STM32F4 family of Cortex-M4 microcontrollers, which sit between Cortex-M3 devices (used for general 32-bit control) and Cortex-M7 parts (used for even higher DSP performance). MCUs are typically deployed as the central processing element in embedded systems spanning industrial, consumer, medical, and connectivity products. Within a system design, an MCU like the STM32F429AGH6TR orchestrates user input, sensor acquisition, motor or actuator drive, communication with companion ICs, and connectivity to upstream processors.
The STM32F429AGH6TR also features a Chrom-ART graphics accelerator for fast 2D image compositing, an on-chip TFT-LCD controller supporting up to XGA resolution, an 8-bit to 14-bit parallel camera interface, and a USB 2.0 OTG full-speed/high-speed controller. Connectivity includes two CAN 2.0B interfaces, an SDIO interface, up to six USARTs, four SPIs, two I2S full-duplex interfaces, two I2Cs, and an Ethernet MAC with MII/RMII. A 12-bit ADC (2.4 MSPS), two 12-bit DACs, and a low-power RTC round out the analog and housekeeping peripherals.
From an architectural perspective, the Cortex-M4 core brings single-precision floating-point, hardware multiply-accumulate, and a SIMD-style DSP extension that accelerates signal-processing loops commonly used for audio decoding, motor control, and sensor fusion. Combined with the ART Accelerator, the device offers predictable, deterministic interrupt latency, which is critical for hard real-time applications such as closed-loop motor control and digital power conversion.
Typical applications include HMI panels with TFT LCD displays, video doorbells, smart appliances, industrial PLCs, motor-control inverters, and bar-code scanners. In designs where the host needs both an LCD controller and rich connectivity, the STM32F429AGH6TR often replaces a microprocessor-plus-discrete-LCD-controller solution, reducing BOM cost and board area.
When designing with this MCU, pay close attention to the decoupling strategy on the 1.2V core supply and the routing of the HS USB differential pair; both directly impact radiated EMI compliance. Review the pinout table carefully before committing the layout, because several pins alternate between SPI/I2S/USART functions and the desired selection must be remapped through the GPIO_AFR registers. The UFBGA-169 (7x7 mm) package allows a compact PCB, but its 0.5 mm ball pitch demands precise reflow profiling and accurate solder-paste deposition at assembly.
This page synthesizes distributor pricing, drop-in same-brand and cross-brand alternatives, and practical design notes that complement the manufacturer datasheet and accelerate BOM decisions for hardware engineers.
Drop-in alternatives for STM32F429AGH6TR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with STM32F429AGH6TR (same form factor and footprint) — differing in Package, Core, SRAM, Flash Memory, ADC.
STM32F427AGH6
✅ Drop-In📋 Reference alternative (not in catalog)
STM32F429IGH6
✅ Drop-InContact for price
View Datasheet →STM32F427IGH6
✅ Drop-InContact for price
View Datasheet →STM32F407IGH6
✅ Drop-InContact for price
View Datasheet →STM32F429AGH6TR Maximum Ratings & Electrical Characteristics
| Manufacturer | STMicroelectronics |
| Product Family | STM32F4 Series |
| Core | ARM Cortex-M4 with FPU and DSP |
| Maximum Clock Speed | 180 MHz |
| Program Memory (Flash) | 1 MB |
| SRAM | 256 KB (including 64 KB CCM SRAM) |
| Operating Voltage | 1.8 V to 3.6 V (core 1.2 V internal) |
| DMIPS | 225 DMIPS / 1.25 DMIPS per MHz |
| Package | 169-pin UFBGA (7x7 mm) |
| Mounting Type | Surface Mount |
| ART Accelerator | Yes (0-wait-state from Flash) |
| LCD-TFT Controller | Yes (up to XGA resolution) |
| Chrom-ART Accelerator | Yes (2D image compositing) |
| USB OTG | 1x USB 2.0 FS + 1x USB 2.0 HS (with on-chip PHY on HS) |
| CAN | 2x CAN 2.0B active |
| Ethernet MAC | 10/100 MII/RMII |
| ADC | 3x 12-bit, 2.4 MSPS |
| DAC | 2x 12-bit |
| Operating Temperature Range | -40C to +85C (industrial grade) |
| RoHS Status | Compliant |
| MSL Level | 3 (168 hours) |
STM32F429AGH6TR Pin Configuration
| Pin A1 | PE2 — GPIO PE2 / FSMC_A23 (per datasheet pinout diagram) |
| Pin B1 | PE3 — GPIO PE3 / FSMC_A19 |
| Pin C1 | PE4 — GPIO PE4 / FSMC_A20 |
| Pin G1 | VBAT — RTC backup supply input |
| Pin H1 | VREF+ — ADC reference voltage |
| Pin J1 | VREF- — ADC reference ground |
| Pin K1 | PA0 — GPIO PA0 / UART4_TX / ADC1_IN0 |
| Pin L1 | PA1 — GPIO PA1 / ETH_CRS_DV / ADC1_IN1 |
| Pin M1 | PA2 — GPIO PA2 / USART2_TX / ETH_MDIO |
| Pin N1 | PA3 — GPIO PA3 / USART2_RX / ADC1_IN3 |
Typical Applications
STM32F429AGH6TR is suitable for 6 applications: Industrial HMI with TFT-LCD Display, Motor Control (BLDC / PMSM), Industrial Communication Gateway (Ethernet + CAN), Smart Appliance with Touch UI, Camera-Based Vision Sensor (Bar-code / Doorbell), Audio Source / Hi-Fi DAC Controller.
Industrial HMI with TFT-LCD Display
The STM32F429AGH6TR fits HMI panels because its integrated LTDC (LCD-TFT Display Controller) and Chrom-ART 2D accelerator drive XGA-resolution TFT displays without an external LCD controller, cutting BOM cost and PCB area. Its 180 MHz Cortex-M4 core can refresh the framebuffer and run UI logic simultaneously, while the on-chip 256 KB SRAM holds up to two color layers with double-buffering. The hardware FPU accelerates anti-aliased font rendering and image transforms. Designers typically pair this MCU with a 10.1-inch 1024x600 TFT panel, a capacitive touch controller over I2C, and an SPI NOR flash for asset graphics.
Recommended
Motor Control (BLDC / PMSM)
The STM32F429AGH6TR is widely deployed in BLDC and PMSM motor-control inverters thanks to its 180 MHz Cortex-M4 core with hardware FPU and DSP instructions for field-oriented control (FOC) loops. The 2.4 MSPS 12-bit ADC performs dual-sample current-sense and back-EMF measurement at sub-microsecond intervals, while the high-resolution timer (217 ps tick) generates center-aligned PWM with edge placement to within 1 ns. ST's MC SDK supports both sensored and sensorless algorithms. Typical designs combine the MCU with gate drivers (e.g. ST L6387) and IGBT/MOSFET bridges on a single inverter PCB.
Recommended
Industrial Communication Gateway (Ethernet + CAN)
The STM32F429AGH6TR integrates a 10/100 Ethernet MAC with MII/RMII and dual CAN 2.0B controllers, eliminating external interface ICs for industrial gateways, PLCs, and fieldbus bridges. The 1 MB on-chip Flash stores TCP/IP stacks (LwIP) plus CANopen or Modbus firmware, and the 256 KB SRAM buffers incoming Ethernet frames with zero-copy DMA into CCM SRAM. USB-OTG high-speed can act as an alternative host channel for diagnostics. Pair with an external PHY (LAN8742A) and a CAN transceiver (TCAN334) for a complete bridge.
Recommended
Smart Appliance with Touch UI
The combination of LTDC controller, Chrom-ART accelerator, and 1 MB Flash makes the STM32F429AGH6TR ideal for smart appliances with graphical touch UIs (ovens, coffee machines, washing machines). Its Cortex-M4 core runs middleware (TouchGFX) with anti-aliased widgets, while the on-chip RTC and low-power Run mode keep standby current low. Designers pair it with an external MEMS accelerometer over SPI, a Bluetooth or Wi-Fi module over UART, and a TFT panel with capacitive touch. The wide 1.8-3.6 V operating range supports direct 3.3 V rail design.
Recommended
Camera-Based Vision Sensor (Bar-code / Doorbell)
The STM32F429AGH6TR features a parallel 8-bit to 14-bit camera interface (DCMI) and Chrom-ART DMA2D that together support real-time capture of small CMOS image sensors for bar-code decoding or video-doorbell preview panels. The on-chip 256 KB SRAM buffers compressed JPEG previews while the Cortex-M4 runs lightweight CV algorithms (bar-code symbology detection, motion trigger). When paired with an external ISP (e.g. STM32 image-signal-processing firmware) the MCU serves as the host processor in cost-sensitive camera modules.
Recommended
Audio Source / Hi-Fi DAC Controller
The STM32F429AGH6TR can act as a USB-to-I2S audio bridge or a network-streaming audio DAC front-end. Its USB OTG high-speed supports USB Audio Class 2 at 384 kHz, while the SPI/I2S peripherals interface with high-end DAC chips. The hardware FPU accelerates lossless decoding (FLAC, ALAC), and the DMA2D engine is free for unused peripherals. Reference designs from ST demonstrate the chip driving asynchronous USB DACs and Apple-Licensing audio accessories.
Recommended
Recommended Products Summary
Engineering reference data for STM32F429AGH6TR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32F429AGH6TRTR | STM32F427AGH6 | STM32F429IGH6 |
|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 169-UFBGA (7x7 mm) | 169-UFBGA (7x7 mm) - same | 169-UFBGA (7x7 mm) - same | 176-TFBGA (13x13 mm) - different footprint |
| Core | Cortex-M4 180 MHz with FPU | Cortex-M4 180 MHz - same | Cortex-M4 180 MHz - same | Cortex-M4 180 MHz - same |
| Flash | 1 MB | 1 MB | 1 MB | 1 MB |
| SRAM | 256 KB (incl. 64 KB CCM) | 256 KB | 256 KB | 256 KB |
| LTDC Display Controller | Yes (XGA / 4 layers) | Yes | No | Yes |
| Chrom-ART (DMA2D) | Yes | Yes | Yes (but no display use case) | Yes |
| Ethernet MAC | Yes (10/100 MII/RMII) | Yes | Yes | Yes |
| USB OTG FS / HS | 1x FS + 1x HS (on-chip PHY on HS) | 1x FS + 1x HS | 1x FS + 1x HS | 1x FS + 1x HS |
| Camera Interface (DCMI) | Yes (8-14 bit parallel) | Yes | No | Yes |
| Unit Price (1000 qty, USD) | $17.85 | ~$17.85 (TR variant) | ~$16.40 (slightly lower, no display) | ~$18.00 (larger package) |
Key Differentiators
- Integrated LCD-TFT controller with Chrom-ART accelerator (vs STM32F427AGH6)
- Same silicon in smaller outline package (vs STM32F429NIH6 (TFBGA-176, 13x13 mm))
- On-chip USB 2.0 HS PHY vs external PHY (vs Generic F405-class MCU)
- 256 KB SRAM with dedicated CCM area for low-latency routines (vs STM32F407IGH6)
Design Notes
Estimated: the 169-pin UFBGA at 0.5 mm ball pitch requires a 4-layer PCB with controlled-impedance routing on the USB HS differential pair (90 ohm differential, 45 ohm single-ended) and a continuous ground reference plane beneath the BGA. Use laser-drilled micro-vias on inner pads and ensure the solder-paste stencil aperture has at least an 80 percent reduction ratio. Verify solder joint reliability with X-ray inspection on first batches.
Place 100 nF and 4.7 uF ceramic decoupling caps within 2 mm of each VDD/VDDA/VBAT pin. Add a ferrite bead or RC filter between the analog VREF+ pin and the digital VDD rails to keep ADC sampling noise below the 12-bit LSB. The internal voltage regulator (LDO + SMPS on some F4 lines) requires a 4.7 uF bulk cap on VCAP pins - do not omit this. Reset behavior is undefined if VCAP rises slower than 1 ms after VDD.
The UFBGA-169 package has an estimated theta_JA around 32 C/W on a 4-layer JEDEC test board (per ST package thermal data). At 180 MHz in low-power Run mode the part dissipates roughly 200 mW, which yields a 6.4 C junction-rise above ambient in still air. Inside an enclosed appliance or HMI chassis, consult the system-level derating guideline if the enclosure ambient exceeds 60 C.
Several pins (such as PA11/PA12) default to USB OTG D-/D+ but can also be configured as GPIO; a missing USB pull-up handling leads to USB enumeration failure on the first bring-up. The BOOT0 pin state at power-up selects the boot vector (Flash, System Memory, RAM); tie BOOT0 through a 10 kOhm pull-down and use a momentary switch to GND to enter System Loader for in-system programming. Always hold NRST low for at least 1 us after VDD stabilizes.
The Ethernet MII bus runs up to 50 MHz and shares pins with other peripherals (I2S, DCMI); remap conflicting peripherals only after a complete GPIO usage analysis. Keep MII traces < 50 mm and length-matched within 50 ps to avoid timing violations with the external PHY. Route the HS USB DP/DN pair as a 90-ohm differential with no stubs and 1.6 mm width on the outer microstrip (assuming standard FR-4 1.6 mm stackup).
Compliance Information
RoHS and REACH compliance per STMicroelectronics product declarations. Industrial-grade part (not AEC-Q100 automotive qualified). Lead-free per the manufacturer datasheet ordering code suffix.
