describe

Stm32f401xd / Xe equipment is based on high-performance arm ® Cortex ®- M4 32-bit RISC core, operating frequency up to 84mhz. Its cortex ®- M4 core has floating point unit (FPU) single precision and supports all arm single precision data processing instructions and data types. It also implements a complete set of DSP instructions and a memory protection unit (MPU), which improves the security of the application.

Stm32f401xd / Xe contains high-speed embedded memory (512 kilobyte flash memory, 96 kilobyte SRAM), as well as extensive enhanced I / O and peripherals connected to two APB buses, two AHB buses and a 32-bit multi AHB bus matrix.

All devices are provided with a 12 bit ADC, a low-power RTC and six general-purpose 16 bit timers, including a PWM timer for motor control and two general-purpose 32-bit timers. They also have standard and advanced communication interfaces.

Up to three I2C

• up to four SPIs

• two full duplex I2S. In order to achieve audio level accuracy, I2S peripherals can be

Timing via dedicated internal audio PLL or via external clock to allow synchronization.

• three USARTs

• SDIO interface

• USB 2.0 OTG full speed interface

For available peripherals for each part number, see.

Stm32f401xd / Xe operates in the temperature range of - 40 to + 105 ° C, from 1.7 (pdroff) to 3.6V power supply. A comprehensive set of power saving modes allows the design of low-power applications.

These characteristics make stm32f401xd / Xe microcontroller suitable for various applications

Application:

• motor drive and application control

• medical equipment

• industrial applications: PLC, inverter, circuit breaker

• printers and scanners

• alarm system, video walkie talkie and HVAC

• home audio equipment

• mobile phone sensor hub

features

• core: arm ® 32-bit cortex ®- M4 CPU with FPU, adaptive real-time accelerator (Art accelerator) ™) Allow 0 to wait for execution

From flash memory, frequency up to 84 MHz, memory protection unit, 105 DMIPS / 1.25 DMIPS / MHz (dhrytone 2.1), and DSP instructions

• memory

– flash memory up to 512 KB

– SRAM up to 96 KB

• clock, reset and power management

– 1.7 V to 3.6 V application power supply and I / O

– por, PDR, PVD and bor

– 4 to 26 MHz crystal oscillator

– internal 16mhz factory fine tuning RC

– 32 kHz oscillator for RTC with calibration

– internal 32 kHz RC with calibration

• power consumption

– operation: 146 µ A / MHz (peripheral off)

– stop (flashing in stop mode, fast wake-up time): 42 µ a, typical value @ 25 ℃; 65 μ a max

@25 ° C

– stop (flashing in deep power-off mode, fast wake-up time): reduce to 10 µ a at 25 ° C; 30 µ a max at 25 ° C

– standby: 2.4 µ A / 1.7 V at 25 ° C without power supply

RTC； 12 µ a at 85 ° C at 1.7 V

– Vbat power supply for RTC: 1 µ a at 25 ° C

•1 × 12 bit, 2.4 MSPs A / D converter: up to 16

channel

• universal DMA: 16 stream DMA

Controller with FIFO and burst support

• up to 11 timers: up to 6 16 bits, 2 32 bits

Timers up to 84 MHz, up to four per timer

IC / OC / PWM or pulse counter and quadrature (incremental) encoder input, two Watchdog Timers (independent and window) and systick timer

• commissioning mode

– serial line commissioning (SWD) and JTAG

Interface

–Cortex ®- M4 embedded micro macro cell ™

• up to 81 I / O ports with interrupt function

– up to 78 fast I / OS up to 42 MHz

– all I / O ports have a 5 V tolerance

• up to 12 communication interfaces

– up to 3 I2C interfaces (SMBus / pmbus)

– up to 3 USARTs (2 x 10.5 Mbit / s,

1 x 5.25 Mbit / s), ISO 7816 interface, Lin,

IrDA (modem control)

– up to 4 SPIs (transmission rate up to 42mbit / s)

Fcpu = 84 MHz), SPI2 and spi3, with multiplexing

Full duplex I2S to achieve audio level

Accuracy via internal audio PLL or external audio PLL

Clock

– SDIO interface

– advanced connection: USB 2.0 full speed

With on-chip device / host / OTG controller

physical layer

• CRC computing unit

• 96 bit unique ID

• RTC: sub second accuracy, hardware calendar

• all packages (wlcsp49, lqfp64 / 100,

Ufqfpn48 and ufbga100) are ecopack ® two