|
PIC18F45J10 Datasheet, PDF (315/358 Pages) Microchip Technology – 28/40/44-Pin High-Performance RISC Microcontrollers with nanoWatt Technology | |||
|
◁ |
PIC18F45J10 FAMILY
FIGURE 23-5:
OSC1
CLKO AND I/O TIMING
Q4
Q1
10
CLKO
13
14
I/O pin
(Input)
17
I/O pin
(Output)
Old Value
Note:
20, 21
Refer to Figure 23-3 for load conditions.
Q2
Q3
11
19
18
12
16
15
New Value
TABLE 23-9: CLKO AND I/O TIMING REQUIREMENTS
Param
No.
Symbol
Characteristic
Min
Typ
Max Units Conditions
10
TOSH2CKL OSC1 â to CLKO â
â
75
200
ns
11
TOSH2CKH OSC1 â to CLKO â
â
75
200
ns
12
TCKR
CLKO Rise Time
â
15
30
ns
13
TCKF
CLKO Fall Time
â
15
30
ns
14
TCKL2IOV CLKO â to Port Out Valid
â
â 0.5 TCY + 20 ns
15
TIOV2CKH Port In Valid before CLKO â
0.25 TCY + 25 â
â
ns
16
TCKH2IOI Port In Hold after CLKO â
0
â
â
ns
17
TOSH2IOV OSC1 â (Q1 cycle) to Port Out Valid
â
50
150
ns
18
TOSH2IOI OSC1 â (Q2 cycle) to Port Input Invalid
18A
(I/O in hold time)
100
â
â
ns
200
â
â
ns
19
TIOV2OSH Port Input Valid to OSC1 â
(I/O in setup time)
0
â
â
ns
20
TIOR
Port Output Rise Time
â
TBD
6
ns
21
TIOF
Port Output Fall Time
â
TBD
5
ns
22â TINP
INT pin High or Low Time
TCY
â
â
ns
23â TRBP
RB7:RB4 Change INT High or Low Time
TCY
â
â
ns
Legend: TBD = To Be Determined
â These parameters are asynchronous events not related to any internal clock edges.
© 2007 Microchip Technology Inc.
Preliminary
DS39682C-page 313
|
▷ |