PIC18F1220_07 Datasheet, PDF (261/308 Pages) Microchip Technology – 18/20/28-Pin High-Performance, Enhanced Flash Microcontrollers with 10-bit A/D and nanoWatt Technology

PIC18F1220/1320
FIGURE 22-7:
OSC1
CLKO AND I/O TIMING
Q4
Q1
10
CLKO
13
14
I/O pin
(Input)
17
I/O pin
(Output)
Old Value
20, 21
Note: Refer to Figure 22-5 for load conditions.
Q2
19
18
15
Q3
11
12
16
New Value
TABLE 22-7: CLKO AND I/O TIMING REQUIREMENTS
Param.
No.
Symbol
Characteristic
Min
Typ Max Units Conditions
10 TosH2ckL OSC1↑ to CLKO↓
—
75
200
ns
11
TosH2ckH OSC1↑ to CLKO↑
—
75
200
ns
12 TckR
CLKO Rise Time
—
35
100
ns
13 TckF
CLKO Fall Time
—
35
100
ns
14 TckL2ioV CLKO↓ to Port Out Valid
—
— 0.5 TCY + 20 ns
15 TioV2ckH Port In Valid before CLKO↑
0.25 TCY + 25 —
—
ns
16 TckH2ioI Port In Hold after CLKO↑
0
—
—
ns
17 TosH2ioV OSC1↑ (Q1 cycle) to Port Out Valid
—
50
150
ns
18 TosH2ioI OSC1↑ (Q2 cycle) to Port PIC18F1X20
100
—
—
ns
18A
Input Invalid (I/O in hold time) _PIC18LF1X20
200
—
—
ns
19 TioV2osH Port Input Valid to OSC1↑
(I/O in setup time)
0
—
—
ns
20 TioR
Port Output Rise Time
PIC18F1X20
—
10
25
ns
20A
PIC18LF1X20
—
—
60
ns
21 TioF
Port Output Fall Time
PIC18F1X20
—
10
25
ns
21A
PIC18LF1X20
—
—
60
ns
Note 1: Measurements are taken in RC mode, where CLKO output is 4 x TOSC.
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
© 2007 Microchip Technology Inc.
DS39605F-page 259