参数资料
型号: MCV18E-I/P
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PDIP18
封装: 0.300 INCH, LEAD FREE, PLASTIC, DIP-18
文件页数: 96/108页
文件大小: 1509K
代理商: MCV18E-I/P
MCV18E
DS41399A-page 88
2009 Microchip Technology Inc.
FIGURE 10-4:
CLKOUT AND I/O TIMING
TABLE 10-3:
CLKOUT AND I/O TIMING REQUIREMENTS
Param
No.
Sym
Characteristic
Min
Typ
Max
Units Conditions
10*
TOSH2CKLOSC1
↑ to CLKOUT↓
—75
200
ns
(Note 1)
11*
TOSH2CKHOSC1
↑ to CLKOUT↑
—75
200
ns
(Note 1)
12*
TCKR
CLKOUT rise time
35
100
ns
(Note 1)
13*
TCKF
CLKOUT fall time
35
100
ns
(Note 1)
14*
TCKL2IOVCLKOUT
↓ to Port out valid
20
ns
(Note 1)
15*
TIOV2CKH
Port input valid before CLKOUT
TOSC +
200
——
ns
(Note 1)
16*
TCKH2IOI
Port input hold after CLKOUT
0—
ns
(Note 1)
17*
TOSH2IOVOSC1
↑ (Q1 cycle) to Port out valid
50
150
ns
18*
TOSH2IOIOSC1
↑ (Q2 cycle) to Port input invalid (I/O
in hold time)
100
ns
19*
TIOV2OSH
Port input valid to OSC1
↑ (I/O in setup time)
0
ns
20*
TIOR
Port output rise time
10
40
ns
21*
TIOF
Port output fall time
10
40
ns
22*
TINP
INT pin high or low time
Tcy
ns
23*
TRBP
RB<7:4> change INT high or low time
Tcy
ns
*
These parameters are characterized but not tested.
Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance
only and are not tested.
These parameters are asynchronous events not related to any internal clock edge.
Note 1:
Measurements are taken in RC mode where CLKOUT output is 4 x TOSC.
Note 1:
Refer to Figure 10-2 for load conditions.
OSC1
CLKOUT
I/O Pin
(input)
I/O Pin
(output)
Q4
Q1
Q2
Q3
10
13
14
17
20, 21
19
18
15
11
12
16
old value
new value
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