ST7MC2M9 STMicroelectronics, ST7MC2M9 Datasheet - Page 276

• Manufacturer Part Number: ST7MC2M9
• Description: 8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC,BRUSHLESS MOTOR CONTROL, 5 TIMERS, SPI, LINSCI(TM)
• Manufacturer: STMicroelectronics

Specifications of ST7MC2M9

• Hdflash Endurance: 100 cycles, data retention
• Clock Sources: crystal/ceramic resonator oscillators and by-pass for external clock, clock security system.
• Four Power Saving Modes: Halt, Active-Halt, Wait and Slow
• Main Clock Controller With: Real time base, Beep and Clock-out capabilities
• Two 16-bit Timers With: 2 input captures, 2 output compares, external clock input, PWM and pulse generator modes
• 8-bit Pwm Auto-reload Timer With: 2 input captures, 4 PWM outputs, output compare and time base interrupt, external clock with event detector

ST7MC1xx/ST7MC2xx
MOTOR CONTROL CHARACTERISTICS (Cont’d)
Figure 152. Example 3: Waveforms for Zero-crossing Detection with Sampling after a Delay during
PWM On-time
Figure 153. Example 4: Waveforms for zero-crossing detection with sampling after a delay
at
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f
f
comparator
output
sample
f
MCOx
Comparator
output
sample
HST (MCRC)
MTIM
MZREG
MCOx
HST (MCRC)
MTIM
MZREG
mtc
SCF
f
mtc
SCF
A5
A5
Delay from DS bits
Delay from DS bits
XX
XX
A6
A6
Sampling time
A6
Sampling time
A7
A7
A7