参数资料
型号: MC68HC08AS20CFN
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PQCC52
封装: PLASTIC, LCC-52
文件页数: 82/96页
文件大小: 3243K
代理商: MC68HC08AS20CFN
9
MC68HC05E0
MOTOROLA
9-7
ELECTRICAL SPECIFICATIONS
9.6
Serial Interface Timing
Figure 9-4 SPI Timing Diagram
Figure 9-5
I2C-bus Timing Diagram
tHOLD = 1 Bus Cycle Time + t pd
(tpd ≈ 0 → 30 ns)
tSTART = tVALID = 1/SPI Transfer Frequency
(SPI Transfer Frequency determined by BD0/BD1)
CLOCK
DATA
Hi-Z
Idle
Clock Idle Start
tSTART
tVALID
tHOLD
Sample Data
tHOLD
MSB
(Bit 7)
MSB –1
(Bit 6)
1st Clock
2nd Clock
START Bit
(Transmit only)
tHOLD = 1 Bus Cycle Time + t pd
(tpd ≈ 0 → 30 ns)
tSTART = t VALID = 1 / I 2C Transfer Frequency
(I2C Transfer Frequency determined by BD0/BD1)
SCL
SDA
MSB
MSB–1
tHOLD
tVALID
tSTART
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