Power supply:
FU6872P
- Single-power supply mode: When Vexternal power supply 15V~17 V is connected to VCC pin, internal BUCK supplies VREG and internal LDO supplies VDD5 voltage.
Dual core: 8051 core and ME core. ME core achieves automatic calculation of FOC or square-wave control for BLDC motors, and 8051 core is used for parameter configuration and routine processing.
An instruction cycle mostly takes 1 or 2 system clock cycle(s)
16kB Flash with CRC, self-program and code protection
256 bytes IRAM and 768 bytes XRAM
ME: Core integrating LPF module, PI regulator, BLDC module, FOC module, MDU auxiliary computing module
1T 16x16 multiplier, 16T 32/16 divider
16 interrupt sources with 4 configurable priority levels
GIPO
FU6872P: 18 (P0.0/P3.3 multiplexed, P0.1/P3.4 multiplexed, P0.5/P1.1 multiplexed, P0.6/P0.7 multiplexed, and P1.3/P1.4 multiplexed)
Timers:
2*Programmable timers with capture feature
1*QEP decoding programmable timer
1*BLDC motor dedicated timer
1*General-purpose timer
1*RTC
Communication interfaces:
1*I2C
Dual-channel DMA: supporting data transmission via I2C/SPI/UART (Different models support different communication interfaces. For details, please refer to the above description)
Analog peripherals:
12-bit ADC, operating with 1μs conversion time and internal VREF or external VREF selectable as reference voltage
Number of ADC channels:
- FU6872P: 10 (AD0/AD1 are the internal channels)
Internal VREF. 3V, 4V, 4.5V and VDD5 can be selected as the internal reference (FU6872P only supports VDD5)
Internal VHALF (VREF/2) as the internal reference
3*Standalone operational amplifiers
2-channel analog comparator
8-bit DAC
Drive Type
6N Pre-driver Output
Automatic commutation, cycle-by-cycle current limiting and Hall/BEMF-based position sensing for BLDC motor control
FOC module supports single/dual/triple-shunt current sampling
FOC module supports overmodulation
System clock
Built-in 24MHz high-speed RC oscillator
Built-in 32.8kHz low-speed RC oscillator
WDT
LVD
TSD
Two-wire FICE protocol based in-circuit emulation
FU6872P
