ST7MC2M9 STMicroelectronics, ST7MC2M9 Datasheet - Page 275

• 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

MOTOR CONTROL CHARACTERISTICS (Cont’d)
Figure 150. Example 1: Waveforms for Zero-crossing Detection with Sampling at the end of PWM
off-time
Figure 151. Example 2: Waveforms for Zero-crossing Detection with Sampling at
f
MCOx
Comparator
Output
Sample
HST (MCRC)
MTIM
MZREG
mtc
f
f
Comparator
Output
Sample
HST (MCRC)
MTIM
MZREG
mtc
SCF
XX
XX
A5
A5
Sampling time
Sampling time
A6
A6
A5
A6
ST7MC1xx/ST7MC2xx
A7
A7
f
SCF
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