參數(shù)資料
型號: PIC18F458ISOQTP
廠商: Microchip Technology Inc.
英文描述: High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN
中文描述: 高性能,28/40-Pin增強型閃存微控制器和CAN
文件頁數(shù): 340/384頁
文件大小: 3119K
代理商: PIC18F458ISOQTP
PIC18FXX8
DS41159B-page 338
Preliminary
2002 Microchip Technology Inc.
TABLE 27-7:
PLL CLOCK TIMING SPECIFICATION (V
DD
= 4.2V - 5.5V)
FIGURE 27-6:
CLKO AND I/O TIMING
TABLE 27-8:
CLKO AND I/O TIMING REQUIREMENTS
Param No. Symbol
Characteristic
Min
Max
Units
Conditions
7
T
PLL
CLK
PLL Start-up Time (Lock Time)
CLKO Stability (Jitter) using PLL
2
ms
%
TBD
TBD
Param
No.
Symbol
Characteristic
Min
Typ
Max
Units Conditions
10
11
12
13
14
15
16
17
18
18A
19
20
20A
21
21A
22
23
24
TosH2ckL OSC1
to CLKO
TosH2ckH OSC1
to CLKO
TckR
CLKO rise time
TckF
CLKO fall time
TckL2ioV CLKO
to Port out valid
TioV2ckH Port in valid before CLKO
TckH2ioI
Port in hold after CLKO
TosH2ioV OSC1
(Q1 cycle) to Port out valid
TosH2ioI
OSC1
(Q2 cycle) to Port
input invalid (I/O in hold time)
75
75
35
35
50
10
10
200
200
100
100
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(1)
(1)
(1)
(1)
(1)
(1)
(1)
0.5 T
CY
+ 20
150
25
60
25
60
0.25 T
CY
+ 25
0
100
200
0
T
CY
T
CY
20
PIC18
F
XX8
PIC18
LF
XX8
TioV2osH Port input valid to OSC1
(I/O in setup time)
T
IO
R
Port output rise time
PIC18
F
XX8
PIC18
LF
XX8
PIC18
F
XX8
PIC18
LF
XX8
T
IO
F
Port output fall time
T
INP
T
RBP
T
RCP
INT pin high or low time
RB7:RB4 change INT high or low time
RC7:RC4 change INT high or low time
These parameters are asynchronous events, not related to any internal clock edges.
Note 1:
Measurements are taken in RC mode where CLKO pin output is 4 x T
OSC
.
Note:
Refer to Figure 27-4 for load conditions.
OSC1
CLKO
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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