MC68HC912B32VFU8 Freescale Semiconductor, MC68HC912B32VFU8 Datasheet - Page 325

• 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

19.15 Peripheral Port Timing
Freescale Semiconductor
Frequency of operation
E-clock period
Peripheral data setup time
Peripheral data hold time
Delay time, peripheral data write
Delay time, peripheral data write
E-clock frequency
MCU read of ports
t
MCU read of ports
MCU write to ports
MCU write to port CAN
PDSU
= t
cyc
PORT A
PORTS
ECLK
ECLK
/2 + 40
Characteristic
Figure 19-11. Port Write Timing Diagram
Figure 19-10. Port Read Timing Diagram
M68HC12B Family Data Sheet, Rev. 9.1
MCU READ OF PORT
PREVIOUS PORT DATA
MCU WRITE TO PORT
t
PDSU
Symbol
t
t
t
PDSU
t
PWD
PWD
t
PDH
cyc
f
o
t
t
PDH
PWD
Min
125
102
dc
—
—
0
NEW DATA VALID
8.0 MHz
Peripheral Port Timing
Max
8.0
40
71
—
—
—
MHz
Unit
ns
ns
ns
ns
ns
325