PIC16F84A-04-P Datasheet, PDF (56/90 Pages) Microchip Technology – 18-pin Enhanced FLASH/EEPROM 8-Bit Microcontroller

PIC16F84A
FIGURE 9-7:
CLKOUT AND I/O TIMING
Q4
OSC1
CLKOUT
Q1
Q2
10
13
14
22
23
19
18
Q3
11
12
16
I/O Pin
(Input)
17
15
I/O Pin
(Output)
old value
new value
Note:
20, 21
All tests must be done with specified capacitive loads (Figure 9-5) 50 pF on I/O pins and CLKOUT.
TABLE 9-3: CLKOUT AND I/O TIMING REQUIREMENTS
Param
No.
Sym
Characteristic
Min
Typ†
Max
Units Conditions
10
TosH2ckL OSC1 to CLKOUT
Standard
—
15
30
ns (Note 1)
10A
Extended (LF)
—
15
120
ns (Note 1)
11
TosH2ckH OSC1 to CLKOUT
Standard
—
15
30
ns (Note 1)
11A
Extended (LF)
—
15
120
ns (Note 1)
12
TckR
CLKOUT rise time
Standard
—
15
30
ns (Note 1)
12A
Extended (LF)
—
15
100
ns (Note 1)
13
TckF
CLKOUT fall time
Standard
—
15
30
ns (Note 1)
13A
Extended (LF)
—
15
100
ns (Note 1)
14
TckL2ioV CLKOUT  to Port out valid
—
— 0.5TCY +20 ns (Note 1)
15
TioV2ckH Port in valid before
CLKOUT 
Standard
0.30TCY + 30 —
—
ns (Note 1)
Extended (LF) 0.30TCY + 80 —
—
ns (Note 1)
16
TckH2ioI Port in hold after CLKOUT 
0
—
—
ns (Note 1)
17
TosH2ioV OSC1 (Q1 cycle) to
Port out valid
Standard
—
Extended (LF)
—
—
125
ns
—
250
ns
18
TosH2ioI OSC1 (Q2 cycle) to Port Standard
10
input invalid (I/O in hold time) _{Extended (LF)}
10
—
—
ns
—
—
ns
19
TioV2osH Port input valid to OSC1 Standard
-75
—
—
ns
(I/O in setup time)
Extended (LF)
-175
—
—
ns
20
TioR
Port output rise time
Standard
—
10
35
ns
20A
Extended (LF)
—
10
70
ns
21
TioF
Port output fall time
Standard
—
10
35
ns
21A
Extended (LF)
—
10
70
ns
22
TINP
INT pin high
22A
or low time
Standard
20
Extended (LF)
55
—
—
ns
—
—
ns
23
TRBP
RB7:RB4 change INT
23A
high or low time
Standard
TOSC§
—
—
ns
Extended (LF)
TOSC§
—
—
ns
† Data in "Typ" column is at 5.0V, 25C unless otherwise stated. These parameters are for design guidance only and are not tested.
§ By design.
Note 1: Measurements are taken in RC mode where CLKOUT output is 4 x TOSC.
DS35007C-page 56
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