Microchip Technology MA160014 データシート
2010-2012 Microchip Technology Inc.
DS41412F-page 451
PIC18(L)F2X/4XK22
FIGURE 27-8:
CLKOUT AND I/O TIMING
Note:
Refer to
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
TABLE 27-10: CLKOUT AND I/O TIMING REQUIREMENTS
Param.
No.
Symbol
Characteristic
Min
Typ
Max
Units
Conditions
10
TosH2ckL
OSC1
to CLKOUT —
75
200
ns
(Note 1)
11
TosH2ckH
OSC1
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
TckL2ioV
CLKOUT
to Port Out Valid
—
—
0.5 T
CY
+ 20
ns
(Note 1)
15
TioV2ckH
Port In Valid before CLKOUT
0.25
T
CY
+ 25
—
—
ns
(Note 1)
16
TckH2ioI
Port In Hold after CLKOUT
0
—
—
ns
(Note 1)
17
TosH2ioV
OSC1
(Q1 cycle) to Port Out Valid
—
50
150
ns
18
TosH2ioI
OSC1
(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
—
—
—
40
15
15
72
32
32
ns
ns
ns
V
DD
= 1.8V
V
DD
= 3.3V - 5.0V
21
TioF
Port Output Fall Time
—
—
—
28
15
15
55
30
30
ns
ns
ns
V
DD
= 1.8V
V
DD
= 3.3V - 5.0V
22†
T
INP
INTx pin High or Low Time
20
—
—
ns
23†
T
RBP
RB<7:4> Change KBIx High or Low Time
T
CY
—
—
ns
†
These parameters are asynchronous events not related to any internal clock edges.
Note
1:
Measurements are taken in RC mode, where CLKOUT output is 4 x T
OSC
.