ST7MC2M9 STMicroelectronics, ST7MC2M9 Datasheet - Page 145

• 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 CONTROLLER (Cont’d)
Figure 76. Typical command signals of a three-phase induction motor
* These simplified chronograms represent the phase voltages after low-pass filtering of the
PWM outputs reference signals
PWM output
Duty Cycle
Phase A *
Phase B *
Phase C *
PWM
period
51% 50% 49%
PWM output
Duty Cycle
1%
0%
PWM output
Duty Cycle
1%
99% 100% 99%
99%
99%
T0
T1
A
ST7MC1xx/ST7MC2xx
T2
T3
B
HV
T4
T5
145/309
C
1