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describe
Yateli AT32F437 series ultra-high-performance microcontrollers are equipped with 32-bit ARM® Cortex®-M4 core, combined with advanced technology and integration technology to create the industry's highest frequency performance of Cortex®-M4 288MHz computing speed. The built-in single-precision floating-point unit (FPU), digital signal processor (DSP) and memory protection unit (MPU), combined with rich peripherals and flexible clock control mechanism, can meet various application fields. It can support up to 4032KB of flash memory (Flash) and up to 512KB of SRAM, surpassing the level of chips of the same level in the industry.
In addition to integrating high-efficiency computing performance, the AT32F437 series also imports the sLib Security Library (Security Library), which can support password protection of a specified range of program areas. Solution providers burn core algorithms into this area and provide downstream customers for secondary development. In addition, it supports 2 OTG controllers (device mode supports no external crystal oscillator [Xtal-less]), up to 2 QSPI interfaces, used to support external SPI flash memory or SPI RAM expansion, 8 sets of UART serial ports, 2 sets of CAN Bus, 4 sets of SPI/I²S (2 sets of full duplex), 3 sets of high-speed (5.33 Msps) ADC independent engine, 8~14 bit parallel camera interface (DVP), and XMC can support SDRAM, SRAM, PSRAM and other memory expansion , It also integrates a compatible IEEE-802.3 10/100Mbps Ethernet port controller, which is especially suitable for Internet of Things applications, and can simultaneously improve the reliability of terminal products and reduce costs for multiple purposes. AT32F437 can operate in the industrial temperature range of -40~105°C, and provides a series of chips for selection in response to various memory usage requirements. Its rich on-chip resource allocation, high integration and high cost-effective first-class market competitiveness are especially suitable for Designed for various high-computing and large-storage requirements such as industrial automation, motor control, Internet of Things (IoT) and consumer electronics.
characteristic
• ARM® Cortex®-M4 up to 288MHz
• Single-precision floating-point unit
• DSP instruction set
• 2.6V ~ 3.6V supply voltage
• I/Os can withstand 5V levels
• Temperature range -40 ~ + 105°C
memory
• 256/1024/4032KB flash memory
• 128~512KB SRAM
• sLib: set the specified main storage area as the execution code security library area (can only be called but not read)
• Up to 2 QSPI interfaces, expandable Flash memory or RAM, and supports address mapping mode
Clock
• PLL (288 MHz output)
• External high-speed 4 ~ 25 MHz crystal oscillator
• Internal high-speed 48 MHz RC oscillator (-40°C ~ 105°C)
• With automatic clock calibration Function (ACC) (1 % accuracy at 25 °C, 2.5 % accuracy at -40 °C ~ 105 °C)
• External low-speed 32.768kHz RTC crystal oscillator
• Internal low-speed 40kHz RC oscillator
Reset and power management
• Sleep, shutdown , and standby mode
• Power-on/power-off reset (POR/LVM)
• Programmable voltage monitor (PVM)
• VBAT powers RTC and 20 32-bit backup registers
Analog high-performance peripherals
• 3 groups of 5.33M sampling rate 12-bit A/D converter (24 channels)
• 2-channel 12-bit D/A converter
timers
• 3 16-bit PWM advanced control timers with dead zone control
• 2 32-bit, 8 16-bit general-purpose timers
• 2 16-bit basic timers
• 2 Watchdog timer (stand-alone and windowed)
• 1 system time timer: 24-bit self-decrementing
ERTC: Enhanced RTC with alarm, sub-second accuracy, and hardware calendar
Communication interface
• 3 x I²C (supports SMBus /PMBus)
• 4 x SPI / I²S (SPI up to 36MHz) (I²S2/I²S3 support full duplex)
• 4 x USART + 4 x UART (support ISO7816, LIN, IrDA interface and modem control)
• 2 x SDIO
• 2 x OTG full-speed controller, support Crystal-less in device mode
• 2 x CAN 2.0B
• Infrared transmitter
• 10/100M Ethernet MAC: with dedicated DMA and 4 Kbytes SRAM, support IEEE 1588 hardware, MII/RMII interface
DMA
• 22 channels, support timer, ADC, DAC, SDIO, I²S, SPI, I²C, DVP, QSPI and USART
fast I/O ports
• Up to 116 I/O ports, all I /O ports can be mapped to 16 external interrupts; almost all I/O ports can tolerate 5V input signals
All I/O ports are fast I/O, register access speed is the highest fᴀʜʙ
XMC
• Support CF card, SRAM, PSRAM, NOR, NAND and SDRAM memory
• Support parallel LCD interface, compatible with 8080/6800 mode
DVP
• 8~14 bit parallel camera interface
Package
• LQFP64 10 x 10 mm
• LQFP100 14 x 14 mm
• LQFP144 20x20mm
