Datasheet
1998-2013 Microchip Technology Inc. DS30605D-page 125
PIC16C63A/65B/73B/74B
FIGURE 16-6: CLKOUT AND I/O TIMING
TABLE 16-3: CLKOUT AND I/O TIMING REQUIREMENTS
Note: Refer to Figure 16-4 for load conditions.
OSC1
CLKOUT
I/O Pin
(input)
I/O Pin
(output)
Q4
Q1
Q2 Q3
10
13
14
17
20, 21
19
18
15
11
12
16
old value
new value
Param
No.
Sym Characteristic Min Typ† Max Units Conditions
10* TosH2ckL
OSC1 to CLKOUT
— 75 200 ns (Note 1)
11* TosH2ckH OSC1 to CLKOUT — 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 — — 0.5TCY + 20 ns (Note 1)
15* TioV2ckH Port in valid before CLKOUT T
OSC + 200 — — 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
18*
TosH2ioI
OSC1 (Q2 cycle) to Port
input invalid (I/O in hold
time)
PIC16CXX 100 — — ns
18A* PIC16LCXX 200 — — ns
19* TioV2osH
Port input valid to OSC1(I/O in setup
time)
0——ns
20*
TioR Port output rise time
PIC16CXX — 10 40 ns
20A* PIC16LCXX — — 80 ns
21*
TioF Port output fall time
PIC16CXX — 10 40 ns
21A* PIC16LCXX — — 80 ns
22††* Tinp INT pin high or low time T
CY ——ns
23††* Trbp RB7:RB4 change INT high or low time T
CY ——ns
* These parameters are characterized but not tested.
† Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only and
are not tested.
††These parameters are asynchronous events not related to any internal clock edge.
Note 1: Measurements are taken in RC mode where CLKOUT output is 4 x T
OSC.