Power supply:
FU6861Q2
- Mode 1: VCC_MODE = 0, VCC = 5V ~ 24V, VDRV = 7V ~ 18V
- Mode 2: VCC_MODE = 1, VCC = VDD5 = 3V ~ 5.5V, VDRV = 7V ~ 18V
FU6861N2/FU6861NF2/FU6861L2
- Mode 1: VCC = 5 ~ 24V, VDRV = 7V ~ 18V
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
FU6861Q2: 32
FU6861N2: 19 (P0.7/P1.1 multiplexed)
FU6861NF2: 19 (P0.7/P1.1 multiplexed)
FU6861L2: 27
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
1*SPI
1*UART
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:
- FU6861Q2: 12
- FU6861L2: 11
- FU6861N2: 9
- FU6861NF2: 9
Internal VREF. 3V, 4V, 4.5V and VDD5 can be selected as the internal reference
Internal VHALF (VREF/2) as the internal reference
3*Standalone operational amplifiers (1*standalone operational amplifier for FU6861N2/6861NF2)
3-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 (For FU6861N2/FU6861NF2, FOC module supports single-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
FU6861Q2
FU6861L2
FU6861N2
FU6861NF2
