PIC17C7XX_13 Datasheet, PDF (250/306 Pages) Microchip Technology – High-Performance 8-bit CMOS EPROM Microcontrollers with 10-bit A/D

PIC17C7XX
FIGURE 20-7:
CLKOUT AND I/O TIMING
Q4
OSC1
OSC2 †
I/O Pin
(input)
I/O Pin
(output)
Old Value
† In EC and RC modes only.
Q1
10
13
14 ₁₉
17
20, 21
Q2
22
23
18
15
Q3
11
12
16
New Value
TABLE 20-2: CLKOUT AND I/O TIMING REQUIREMENTS
Param
No.
Sym
Characteristic
Min
Typ†
Max
Units Conditions
10
TosL2ckL OSC1 to CLKOUT
—
15
30
ns
(Note 1)
11
TosL2ckH OSC1 to CLKOUT
—
15
30
ns
(Note 1)
12
TckR
CLKOUT rise time
—
5
15
ns
(Note 1)
13
TckF
CLKOUT fall time
—
5
15
ns
(Note 1)
14
TckH2ioV CLKOUT  to Port out valid
—
— 0.5TCY + 20 ns
(Note 1)
15
TioV2ckH Port in valid before CLKOUT
0.25TCY + 25
—
—
ns
(Note 1)
16
TckH2ioI Port in hold after CLKOUT
0
—
—
ns
(Note 1)
17
TosL2ioV OSC1 (Q1 cycle) to Port out valid
—
—
100
ns
18
TosL2ioI OSC1 (Q2 cycle) to Port input
invalid
(I/O in hold time)
0
—
—
ns
19
TioV2osL Port input valid to OSC1
(I/O in setup time)
30
—
—
ns
20
TioR
Port output rise time
—
10
35
ns
21
TioF
Port output fall time
—
10
35
ns
22
TinHL
INT pin high or low time
25
—
—
ns
23
TrbHL
RB7:RB0 change INT high or low
time
25
—
—
ns
†
Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only and are not
tested.
Note 1: Measurements are taken in EC mode, where CLKOUT output is 4 x TOSC.
DS30289C-page 250
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