MC68HC912B32VFU8 Freescale Semiconductor, MC68HC912B32VFU8 Datasheet - Page 126

• Manufacturer Part Number: MC68HC912B32VFU8
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC912B32VFU8

• Cpu Family: HC12
• Device Core Size: 16b
• Frequency (max): 8MHz
• Interface Type: SCI/SPI
• Program Memory Type: EPROM
• Program Memory Size: 32KB
• Total Internal Ram Size: 1KB
• # I/os (max): 63
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 105C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 80
• Package Type: PQFP
• Lead Free Status / Rohs Status: Not Compliant

Pulse-Width Modulator (PWM)
126
CLOCK SOURCE
CLOCK EDGE SYNC
PWENx
PWENx
CLOCK SOURCE
CLOCK EDGE SYNC
PPOL = 0
PPOL = 1
(ECLK)
(ECLK)
GATE
Figure 11-2. Block Diagram of PWM Center-Aligned Output Channel
GATE
Figure 11-1. Block Diagram of PWM Left-Aligned Output Channel
PPOL = 0
PPOL = 1
PWDTY
RESET
M68HC12B Family Data Sheet, Rev. 9.1
PWCNTx
PWCNTx
PWDTY
UP COUNTER ONLY
RESET
8-BIT COMPARE =
(PWPER − PWDTY)
8-BIT COMPARE
8-BIT COMPARE =
DUTY CYCLE
CENTR = 0
8-BIT COMPARE
CENTR = 1
PWDTYx
PWPERx
PERIOD
PWDTYx
PWPERx
PWPER
PWPER
×
2
×
2
S
T
R
Q
Q
Q
Q
PPOLx
PPOLx
MUX
DATA REGISTER
MUX
FROM PORT P
DATA REGISTER
FROM PORT P
Freescale Semiconductor
PWDTY
MUX
MUX
DRIVER
TO PIN
DRIVER
TO PIN