AT32F407 series microcontrollers, based on 32-bit ARM® Cortex®-M4 core, utilize advanced process to achieve 240 MHz computing speed. The embedded single precision floating-point unit (FPU) and digital signal processor (DSP), various peripherals and flexible clock control mechanism can meet a wide range of applications. It also features up to 1 MB Flash memory, 224 KB SRAM and Flash access zero wait, far beyond the same level of chip industry.

In addition, AT32F407 series also imports the Security Library to support the use of passwords to protect the specified program area, in which IDH programs the core algorithm and provides to downstream customers for secondary development. Moreover, there are eight sets of UART serial interfaces, two sets of CAN buses and compatible IEEE-802.3 10/100 Mbps Ethernet port controllers available to suit for IoT applications. The USB device applications, without the need of external crystal oscillators, can reduce costs while enhancing the reliability of end products.

AT32F407 devices not only perform well in the temperature range of -40 to 105¡ãC , but also offer a variety of chips for selection in response to diverse memory requirements. Through its powerful on-chip resource allocation, high integration and cost-effective performance, they are able to maintain its competitive edge in terms of design solutions with high computing demands.

 

Key Features

¡¤         Performance

-      ARM® Cortex®-M4 with 240 MHz maximum frequency

-      Floating point unit (FPU)

-      Flash Memory access zero wait

-      2.6 V to 3.6 V operating voltage

-      I/Os 5 V-tolerant

-      Operating temperature -40 to +105¡ãC

¡¤         Memories

-      256 to 1024 KB of Flash instruction/data memory

-      Up to 96+128 KB of SRAM

-      sLib: configurable part of main Flash set as a library area with code executable but secured, non-readable

¡¤         SPIM

-      Up to 16 MB of external SPI Flash memory extension (for both program execution and data storage) with encryption capability.

¡¤         Clock

-      PLL (240 MHz output)

-      4 to 25 MHz crystal oscillator

-      Internal 48 MHz factory-trimmed RC (-40¡ãC to +105¡ãC)

-      With automatic clock calibration (ACC) (accuracy 1% at TA = 25¡ãC, 2.5% at TA = -40 to +105¡ãC)

-      32 kHz oscillator for RTC with calibration

-      Internal 40 kHz RC with calibration

¡¤         Reset and supply management

-      Sleep, Stop and Standby modes

-      Power-on/Low-voltage reset (POR/LVR)

-      PProgrammable voltage monitor (PVM)

-      Vʙᴀᴛ supply for RTC and 42 x 16-bit backup registers

¡¤         Analog high-performance peripherals

-      3x 12-bit, 0.5 ¦Ìs A/D converters (up to 16 channels)

-      2x 12-bit D/A converters

¡¤         Timers

-      Up to 2 x 16-bit, motor control PWM advanced timers with dead-time generation

-      Up to 2 x 32-bit timers + 8x 16-bit timers

-      2 x watchdog timers (Independent and Window)

-      2 x 16-bit basic timers to drive the DAC

-      SysTick timer: a 24-bit downcounter

¡¤         Peripheral interfaces

-      Up to 3 x I²C interfaces (SMBus/PMBus)

-      Up to 4 x SPIs (50 Mbit/s), all with I2S interface multiplexed, I2S2/I2S3 support full-duplex

-      4 x USART + 4 x UART (ISO7816 interface, LIN, IrDA capability, modem control)

-      Up to 2 x SDIO interfaces

-      USB 2.0 full-speed interface supporting crystal-less

-      Up to 2 x CAN interfaces (2.0B Active)

-      10/100M Ethernet MAC with dedicated DMA and SRAM (4 KB): IEEE1588 hardware support, MII/RMII available

¡¤         DMA

-      14 channels, support timers, ADCs, DACs, SDIOs, I²S, SPIs, I²Cs and USARTs

¡¤         Up to 80 fast I/O

-      51/80 multi-functional bi-directional I/Os, all mappable on 16 external interrupt vectors and almost all 5 V-tolerant

-      All fast I/Os, control registers accessible with fAHB speed

¡¤         XMC

-      Supports Compact Flash, SRAM, PSRAM, NOR and NAND memories

-      Supports LCD parallel interface, 8080/6800 modes

¡¤         Packages

-      64/100-pin LQFP