AT32F403ARGT7 - 240MHz Cortex-M4F MCU 1MB Flash | Artery
N.º de pieza: AT32F403ARGT7 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $1.31 | $1,31 |
| 10 | $1.19 | $11,90 |
| 100 | $1.08 | $108,00 |
| 500 | $0.98 | $490,00 |
| 1.000 | $0.9 | $900,00 |
AT32F403ARGT7 Descripción general
A microcontroller unit (MCU) is a single-chip embedded processor that integrates a CPU core, memory, and peripherals such as timers, ADCs, and communication interfaces onto one die. Within the embedded systems hierarchy, the MCU sits below application processors (MPU/SoC) and above simple logic ICs, and this part belongs to the general-purpose high-performance MCU family built on the ARM Cortex-M architecture.
Key differentiating specifications include the 240 MHz maximum core clock (well above the 72-168 MHz class of typical STM32F1/F4 counterparts), 1 MB of embedded Flash with sLib secure library protection, 17 timers, and 51 GPIO pins. Operating voltage spans 2.6 V to 3.6 V and the junction temperature range is -40C to +105C, covering industrial and automotive-adjacent environments.
Technically, the AT32F403A series combines a single-precision floating-point unit (FPU) and DSP instructions with an advanced process node that Artery leverages to reach 200-240 MHz computing speeds. Peripherals include 3 x 12-bit ADCs, 20 communication interfaces including USBFS, multiple USART/SPI/I2C/CAN blocks, and a flexible clock control mechanism that supports both built-in and external Flash execution.
Typical applications include FPV drone flight controllers, industrial motor control, communication modules and gateways, and consumer electronics where STM32F103-class pinouts are required at higher performance and lower cost. The AT32 family emerged as a proven STM32 alternative during the chip shortage and is widely used as a pin-to-pin upgrade path.
Design consideration: because the 240 MHz core draws more dynamic current than 72 MHz Cortex-M3 parts, budget decoupling capacitance and PCB power-plane copper accordingly, and verify that your flash accelerator/wait-state settings match the higher clock in firmware.
This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found together in the manufacturer datasheet.
Alternativas directas para AT32F403ARGT7 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con AT32F403ARGT7 (mismo factor de forma y huella) — difiere en Package, Flash Memory, Communication Interfaces, Series, Flash Organization.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
AT32F403ARCT7
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
AT32F407ARGT7
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
STM32F103RGT6
✅ Sustitución directa✓ En stock
$4.15 / unidad
Ver hoja de datos →STM32F103RCT6
✅ Sustitución directa✓ En stock
$1.6406 / unidad
Ver hoja de datos →APM32F103RGT6
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
AT32F403ARGT7 Valores máximos y características eléctricas
| Core | ARM Cortex-M4F with FPU and DSP |
| Frecuencia de reloj máxima | 240 MHz |
| Flash Memory Size | 1 MB |
| SRAM Size | 224 KB |
| Supply Voltage Range | 2.6 V to 3.6 V |
| Temperatura de funcionamiento | -40C to +105C |
| Number of GPIOs | 51 |
| Timers | 17 |
| ADC | 3 x 12-bit ADC |
| Communication Interfaces | 20, including USBFS |
| Encapsulado | LQFP-64 (10x10 mm) |
| Tipo de montaje | Surface Mount |
| Ancho del bus de datos | 32 bit |
| Program Memory Type | Built-in + External Flash supported |
| Security Feature | sLib secure library |
| Estado RoHS | ROHS compliant |
| Series | AT32F403A |
Configuración de pines de AT32F403ARGT7
| Pin 1 | VBAT — Battery backup supply for RTC and backup registers |
| Pin 2 | PC13 — GPIO / TAMPER-RTC |
| Pin 3 | PC14 — GPIO / OSC32_IN (32.768 kHz crystal input) |
| Pin 4 | PC15 — GPIO / OSC32_OUT (32.768 kHz crystal output) |
| Pin 5 | PD0 — GPIO / OSC_IN (main crystal input) |
| Pin 6 | PD1 — GPIO / OSC_OUT (main crystal output) |
| Pin 7 | NRST — System reset (active low) |
| Pin 8 | VSSA — Analog ground |
| Pin 9 | VDDA — Analog power supply (ADC/reference) |
| Pin 10 | PA0 — GPIO / WKUP / ADC12_IN0 / TIM2_CH1 |
| Pin 11 | PA1 — GPIO / ADC12_IN1 / TIM2_CH2 |
| Pin 12 | PA2 — GPIO / ADC12_IN2 / USART2_TX / TIM2_CH3 |
| Pin 13 | PA3 — GPIO / ADC12_IN3 / USART2_RX / TIM2_CH4 |
| Pin 14 | PA4 — GPIO / ADC12_IN4 / SPI1_NSS / DAC_OUT1 |
| Pin 15 | PA5 — GPIO / ADC12_IN5 / SPI1_SCK / DAC_OUT2 |
| Pin 16 | PA6 — GPIO / ADC12_IN6 / SPI1_MISO / TIM3_CH1 |
| Pin 17 | PA7 — GPIO / ADC12_IN7 / SPI1_MOSI / TIM3_CH2 |
| Pin 18 | PB0 — GPIO / ADC12_IN8 / TIM3_CH3 |
| Pin 19 | PB1 — GPIO / ADC12_IN9 / TIM3_CH4 |
| Pin 20 | PB2 — GPIO / BOOT1 |
| Pin 21 | PB10 — GPIO / I2C2_SCL / USART3_TX / TIM2_CH3 remap |
| Pin 22 | PB11 — GPIO / I2C2_SDA / USART3_RX |
| Pin 23 | VSS — Digital ground |
| Pin 24 | VDD — Digital power supply 2.6 V to 3.6 V |
| Pin 25 | PB12 — GPIO / SPI2_NSS / I2C2_SMBA / TIM1_BKIN |
| Pin 26 | PB13 — GPIO / SPI2_SCK / TIM1_CH1N |
| Pin 27 | PB14 — GPIO / SPI2_MISO / TIM1_CH2N |
| Pin 28 | PB15 — GPIO / SPI2_MOSI / TIM1_CH3N |
| Pin 29 | PC6 — GPIO / TIM3_CH1 remap / I2S2_MCK |
| Pin 30 | PC7 — GPIO / TIM3_CH2 remap |
| Pin 31 | PC8 — GPIO / TIM3_CH3 remap |
| Pin 32 | PC9 — GPIO / TIM3_CH4 remap |
| Pin 33 | PA8 — GPIO / USART1_CK / TIM1_CH1 / MCO |
| Pin 34 | PA9 — GPIO / USART1_TX / TIM1_CH2 |
| Pin 35 | PA10 — GPIO / USART1_RX / TIM1_CH3 |
| Pin 36 | PA11 — GPIO / USBFS_DM / CAN_RX / TIM1_CH4 |
| Pin 37 | PA12 — GPIO / USBFS_DP / CAN_TX |
| Pin 38 | PA13 — GPIO / SWDIO (serial wire debug data) |
| Pin 39 | VSS — Digital ground |
| Pin 40 | VDD — Digital power supply 2.6 V to 3.6 V |
| Pin 41 | PA14 — GPIO / SWCLK (serial wire debug clock) |
| Pin 42 | PA15 — GPIO / SPI1_NSS remap / TIM2_CH1 remap |
| Pin 43 | PC10 — GPIO / UART4_TX / SPI3_SCK remap |
| Pin 44 | PC11 — GPIO / UART4_RX / SPI3_MISO remap |
| Pin 45 | PC12 — GPIO / UART5_TX / SPI3_MOSI remap |
| Pin 46 | PD2 — GPIO / UART5_RX / TIM3_ETR |
| Pin 47 | PB3 — GPIO / SPI1_SCK remap / TIM2_CH2 remap / JTDO |
| Pin 48 | PB4 — GPIO / SPI1_MISO remap / TIM3_CH1 remap / NJTRST |
| Pin 49 | PB5 — GPIO / SPI1_MOSI remap / I2C1_SMBA / TIM3_CH2 remap |
| Pin 50 | PB6 — GPIO / I2C1_SCL / TIM4_CH1 / USART1_TX remap |
| Pin 51 | PB7 — GPIO / I2C1_SDA / TIM4_CH2 / USART1_RX remap |
| Pin 52 | BOOT0 — Boot mode selection pin |
| Pin 53 | PB8 — GPIO / I2C1_SCL remap / TIM4_CH3 / CAN_RX remap |
| Pin 54 | PB9 — GPIO / I2C1_SDA remap / TIM4_CH4 / CAN_TX remap |
| Pin 55 | VSS — Digital ground |
| Pin 56 | VDD — Digital power supply 2.6 V to 3.6 V |
| Pin 57 | PC0 — GPIO / ADC123_IN10 |
| Pin 58 | PC1 — GPIO / ADC123_IN11 |
| Pin 59 | PC2 — GPIO / ADC123_IN12 |
| Pin 60 | PC3 — GPIO / ADC123_IN13 |
| Pin 61 | PC4 — GPIO / ADC12_IN14 |
| Pin 62 | PC5 — GPIO / ADC12_IN15 |
| Pin 63 | PB0B — Alternate function per AT32F403A pin remap (refer to datasheet pin definition chapter) |
| Pin 64 | PB1B — Alternate function per AT32F403A pin remap (refer to datasheet pin definition chapter) |
Aplicaciones típicas
AT32F403ARGT7 es adecuado para 6 aplicacións: FPV Drone Flight Controllers, Industrial Motor Control, Communication Modules and Gateways, STM32F103 Drop-in Upgrade Boards, Consumer Electronics and White Goods, Test and Measurement Instruments.
FPV Drone Flight Controllers
The AT32F403ARGT7 is a leading MCU choice for FPV flight controllers because its 240 MHz Cortex-M4F with hardware FPU executes 8 kHz gyro sampling and PID control loops with large timing margins, while the 224 KB SRAM accommodates multi-buffer sensor pipelines (SPI gyro plus barometer plus magnetometer). The 51 GPIOs and 17 timers expose the PWM/DShot outputs and multiple UARTs typical of race-class FC boards. Because the pin map is STM32F103-compatible, FC designers can reuse proven LQFP-64 layouts and migrate firmware with modest peripheral adaptation, gaining F7-class throughput at roughly F4-level cost (about $1.31 per unit as of 2026-10-19).
Recomendado
Industrial Motor Control
Three 12-bit ADCs with simultaneous sampling and 17 timers (including advanced timers with complementary PWM outputs and dead-band insertion) make the AT32F403ARGT7 well suited to FOC brushless and PMSM motor drives. The 240 MHz core performs Clarke/Park transforms with the single-precision FPU at rates above 20 kHz without fixed-point compromise, and 224 KB SRAM holds field-oriented control state machines plus communication stacks concurrently. Operating from a 2.6 V to 3.6 V supply over -40C to +105C, the part meets industrial enclosure temperature requirements, while sLib code protection safeguards proprietary control algorithms stored in the 1 MB embedded Flash.
Recomendado
Communication Modules and Gateways
With 20 communication interfaces - multiple USARTs, SPI, I2C, CAN, and USBFS - the AT32F403ARGT7 aggregates data from radios, RS-485 fieldbuses, and sensors in industrial gateways and IoT concentrators. The 1 MB Flash supports protocol stacks (Modbus, MQTT-over-modem AT handlers) plus an OTA bootloader simultaneously, and 224 KB SRAM buffers burst traffic between asymmetric-speed interfaces. The flexible clock control mechanism allows running peripherals from lower-speed clocks to cut EMI while keeping the 240 MHz core available for packet processing, a useful trade-off in CE/FCC-sensitive wireless products sharing the STM32F103-style footprint.
Recomendado
STM32F103 Drop-in Upgrade Boards
The AT32F403ARGT7 functions as a pin-to-pin performance upgrade for STM32F103RGT6/RCT6-based designs in the LQFP-64 package: identical pin ordering (VBAT, PC13, BOOT0, and GPIO placement), the same 2.6 V to 3.6 V supply window, and RoHS-compliant construction. Boards gain 3.3x clock speed (240 MHz vs 72 MHz), an FPU, and 2.3x SRAM without PCB respin. This positioning drove its adoption during the STM32 shortage era, and it remains a cost-reduction lever (about $1.31 at qty 1 as of 2026-10-19) for legacy boards. Firmware requires recompilation for Artery peripherals and re-validation of USB, timers, and ADC edge cases.
Recomendado
Consumer Electronics and White Goods
In appliances, chargers, and smart-home devices, the AT32F403ARGT7 provides headroom for capacitive-touch decoding, voice-prompt playback, and display driving that stresses 72 MHz MCUs. The 3 x 12-bit ADCs handle multiple analog sensor channels (NTC temperature, potentiometers, current sense), USBFS supports charging-port communication, and the 1 MB Flash stores GUI assets plus a field-updatable application image in one device. The -40C to +105C range and 2.6 V to 3.6 V operation tolerate kitchen and outdoor environmental conditions, while the roughly $1 volume price keeps the BOM competitive against domestic Cortex-M0/M3 alternatives at higher clock speeds.
Recomendado
Test and Measurement Instruments
Bench accessories such as programmable loads, signal generators, and data loggers benefit from the AT32F403ARGT7's combination of 240 MHz processing, three 12-bit ADCs for multi-channel acquisition, and 17 timers for precise PWM/DAC-like waveform synthesis. The 224 KB SRAM sustains deep sample buffers for 1 MSPS-class logging, while USBFS streams data to host PCs without a separate USB bridge chip. sLib secure library protection lets instrument vendors ship firmware with calibration constants protected against extraction, and the LQFP-64 10x10 mm footprint integrates into compact handheld enclosures at industrial temperature ratings up to +105C.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para AT32F403ARGT7 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | AT32F403ARCT7 | AT32F407ARGT7 | STM32F103RGT6 | STM32F103RCT6 | APM32F103RGT6 |
|---|---|---|---|---|---|---|
| Package | LQFP-64 (10x10 mm) | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same |
| Brand | Artery Technology | Artery Technology | Artery Technology | STMicroelectronics | STMicroelectronics | Geehy Semiconductor |
| Core / Max Clock | Cortex-M4F, 240 MHz | Cortex-M4F, 240 MHz | Cortex-M4F, 240 MHz | Cortex-M3, 72 MHz | Cortex-M3, 72 MHz | Cortex-M3, 120 MHz |
| Flash | 1 MB | 256 KB | 1 MB | 1 MB | 256 KB | 1 MB |
| FPU | Yes (single precision) | Yes (single precision) | Yes (single precision) | No | No | No |
| Supply Voltage | 2.6 V to 3.6 V | 2.6 V to 3.6 V | 2.6 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
Diferenciadores clave
- 3.3x CPU throughput in the same footprint (frente a STM32F103RGT6)
- Hardware floating-point unit (frente a STM32F103RGT6)
- Larger SRAM buffer capacity (frente a STM32F103RCT6)
- Cost per MHz trade-off (frente a STM32F103RGT6)
Notas de diseño
Estimated: at 240 MHz, core dynamic current is significantly higher than a 72 MHz Cortex-M3 part; budget a low-ESR 10 uF bulk capacitor plus 0.1 uF ceramic caps at every VDD pin pair (pins 24/23, 40/39, 56/55) and a separate LC-filtered VDDA (pin 9) with a 1 uF + 10 nF network for the ADCs. Keep VDDA ripple below a few mV to preserve 12-bit ADC effective resolution. Verify actual Idd figures against the DC characteristics tables of the Artery AT32F403A datasheet for your clock configuration.
Place the 0.1 uF decoupling capacitors within 2 mm of each VDD pin with solid ground return vias. Route USBFS_DM/DP (pins 36/37) as a 90-ohm differential pair with length matching within 1 mm and reference a continuous ground plane. Keep the NRST (pin 7) trace short with a 100 nF capacitor to ground near the pin, and expose BOOT0 (pin 52) to a jumper or test point so the bootloader remains accessible for in-system programming after assembly.
The most common migration mistake from STM32F103 boards is assuming register-level identity: the AT32F403A flash accelerator and clock tree configuration differ, and running firmware compiled for 72 MHz without reconfiguring PLL and wait states will either fail to boot or run at the wrong speed. Also confirm the supply window: this Artery part specifies 2.6 V minimum versus 2.0 V on STM32F103, so a slightly sagging 3.3 V rail under load should be measured across the full operating temperature range before mass production.
Información de cumplimiento
ROHS compliance stated by LCSC and JLCPCB listings. REACH, lead-free, halogen-free, and conflict-minerals declarations not stated in the provided data - request certificate of conformity from Artery.
