Durandal is a flight controller designed by Holybro utilizing the STM32H7 microcontroller series. It comes with built-in vibration isolation system and integrated IMU heater for sensors temperature control. 
 
Key Design Points:
High performance H7 Processor with clock speed up to 480 MHz
Redundant inertial measurement unit (IMU) from Bosch® & InvenSense®
Built-in Vibration isolation system to filter out high frequency vibration and reduce noise to ensure accurate readings
IMUs are temperature-controlled by onboard heating resistors, allowing optimum working temperature of IMUs
2 power ports & 5 general purpose serial ports
Two Power ports for redundancy
 
Technical Specifications
Processors & Sensors
Main FMU Processor: STM32H743
32 Bit Arm ® Cortex®-M7, 480MHz, 2MB memory, 1MB RAM
IO Processor: STM32F100/F103
32 Bit Arm ® Cortex®
On-board sensors
Accel/Gyro: ICM-20689
Accel/Gyro: ICM-20602 / BMI088
Mag: IST8310
Barometer: MS5611
 
Electrical Data
Voltage Ratings:
Max input voltage: 6V
USB Power Input: 4.75~5.25V
Servo Rail Input: 0~36V
 
Current Ratings:
Telem1 Max output current limiter: 1.5A
All other port combined output current limiter: 1.5A
 
Mechanical Data:
Dimensions:80*45*20.5mm
Weight: 68.8g
Interfaces
13 PWM outputs (8 from IO, 5 from FMU)
5 general purpose serial ports
3 with full flow control
1 with separate 1.5A current limit (Telem1)
3 I2C ports
4 SPI buses
1 internal high speed SPI sensor bus with 4 chip selects and 6 DRDYs
1 internal low noise SPI bus dedicated for XXX
Barometer with 2 chip selects, no DRDYs
1 internal SPI bus dedicated for FRAM
Supports temperature control located on sensor module
1 external SPI buses
Up to 2 CANBuses for dual CAN
Each CANBus has individual silent controls or ESC RX-MUX control
Analog inputs for voltage / current of 2 batteries
6 dedicated PWM/Capture inputs on FMU
Dedicated R/C input for Spektrum / DSM
Dedicated R/C input for CPPM and S.Bus
Dedicated S.Bus servo output and analog / PWM RSSI input
2 additional analog inputs
 
SKU11039 Includes: 
Durandal Flight Controller
Cable Set
 
SKU20081/20227 Includes: 
Durandal Flight Controller
PM02 V3 12S Power Module or PM06 14S Power Module
Cable Set