PIC16F628-20P Datasheet, PDF (139/170 Pages) Microchip Technology – FLASH-Based 8-Bit CMOS Microcontroller

PIC16F62X
FIGURE 17-7:
CLKOUT AND I/O TIMING
Q4
OSC1
CLKOUT
Q1
Q2
10
13
14
22
23
19
18
I/O PIN
(INPUT)
17
15
I/O PIN
(OUTPUT)
OLD VALUE
20, 21
Q3
11
12
16
NEW VALUE
TABLE 17-5: CLKOUT AND I/O TIMING REQUIREMENTS
Param
No.
Sym
Characteristic
Min
Typ† Max Units
10* TosH2ckL OSC1↑ to CLKOUT↓
16F62X
—
75 200
ns
10A*
16LF62X
—
— 400
ns
11*
TosH2ckH OSC1↑ to CLKOUT↑
16F62X
—
75 200
ns
11A*
16LF62X
—
— 400
ns
12* TckR
CLKOUT rise time
16F62X
—
35 100
ns
12A*
16LF62X
—
— 200
ns
13* TckF
CLKOUT fall time
16F62X
—
35 100
ns
13A*
16LF62X
—
— 200
ns
14* TckL2ioV CLKOUT ↓ to Port out valid
—
—
20
ns
15* TioV2ckH Port in valid before
16F62X Tosc+200 ns —
—
ns
CLKOUT ↑
16LF62X Tosc=400 ns —
—
ns
16* TckH2ioI Port in hold after CLKOUT ↑
0
—
—
ns
17* TosH2ioV OSC1↑ (Q1 cycle) to
16F62X
—
50 150*
ns
Port out valid
16LF62X
—
— 300
ns
18* TosH2ioI OSC1↑ (Q2 cycle) to Port input invalid
(I/O in hold time)
100
—
—
ns
200
* These parameters are characterized but not tested.
† Data in “Typ” column is at 5.0V, 25°C unless otherwise stated. These parameters are for design guidance only
and are not tested.
 2003 Microchip Technology Inc.
Preliminary
DS40300C-page 137