Datasheet
PIC16F630/676
DS40039F-page 98 2010 Microchip Technology Inc.
FIGURE 12-6: CLKOUT AND I/O TIMING
TABLE 12-3: CLKOUT AND I/O TIMING REQUIREMENTS
Param
No.
Sym Characteristic Min Typ† Max Units Conditions
10 TosH2ckL OSC1 to CLOUT — 75 200 ns (Note 1)
11 TosH2ckH OSC1 to CLOUT — 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 — — 20 ns (Note 1)
15 TioV2ckH Port in valid before CLKOUT T
OSC + 200 ns — — 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
— — 300 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 — 10 40 ns
21 TioF Port output fall time — 10 40 ns
22 Tinp INT pin high or low time 25 — — ns
23 Trbp PORTA change INT high or low
time
T
CY ——ns
* These parameters are characterized but not tested.
† Data in “Typ” column is at 5.0V, 25C unless otherwise stated.
Note 1: Measurements are taken in RC mode where CLKOUT output is 4xT
OSC.
OSC1
CLKOUT
I/O pin
(Input)
I/O pin
(Output)
Q4
Q1
Q2 Q3
10
13
14
17
20, 21
22
23
19
18
15
11
12
16
Old Value
New Value