參數(shù)資料
型號: MC68HC11D3CFN2
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 18/138頁
文件大?。?/td> 1047K
代理商: MC68HC11D3CFN2
Electrical Characteristics
MC68HC711D3 Data Sheet, Rev. 2.1
114
Freescale Semiconductor
9.7 Peripheral Port Timing
Figure 9-8. Port Write Timing Diagram
Figure 9-9. Port Read Timing Diagram
Characteristic(1)
1. VDD = 5.0 Vdc ± 10%, VSS = 0 Vdc, TA = TL to TH. All timing is shown with respect to 20% VDD and 70% VDD, unless
otherwise noted.
Symbol
1.0 MHz
2.0 MHz
3.0 MHz
Unit
Min
Max
Min
Max
Min
Max
Frequency of operation (E-clock frequency)
fO
1.0
2.0
3.0
MHz
E-clock period
tCYC
1000
500
333
ns
Peripheral data setup time(2)
MCU read of ports A, B, C, and D
2. Port C and D timing is valid for active drive (CWOM and DWOM bits not set in PIOC and SPCR registers respectively).
tPDSU
100
100
100
ns
Peripheral data hold time(2)
MCU read of ports A, B, C, and D
tPDH
50
50
50
ns
Delay time, peripheral data write
MCU write to port A
MCU writes to ports B, C, and D
tPWD = 1/4 tcyc + 150 ns
tPWD
200
350
200
225
200
183
ns
t PWD
E
MCU WRITE TO PORT
PREVIOUS PORT DATA
NEW DATA VALID
PORTS
B, C, D
PORT A
tPWD
tPDH
E
MCU READ OF PORT
tPDSU
PORTS
A, B, C, D
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