Datasheet

© 2007 Microchip Technology Inc. DS41213D-page 65
PIC16F5X
FIGURE 11-4: CLKOUT AND I/O TIMING – PIC16F5X
TABLE 11-2: CLKOUT AND I/O TIMING REQUIREMENTS – PIC16F5X
Param
No.
Sym. Characteristic Min. Typ† Max. Units
10 TosH2
CKLOSC1↑ to CLKOUT↓
(1)
— 15 30** ns
11 TosH2CKHOSC1↑ to CLKOUT↑
(1)
— 15 30** ns
12 T
CKRCLKOUT rise time
(1)
— 5.0 15** ns
13 TCKF CLKOUT fall time
(1)
— 5.0 15** ns
14 TCKL2IOVCLKOUT↓ to Port out valid
(1)
— — 40** ns
15 T
IOV2CKH Port in valid before CLKOUT↑
(1)
0.25 TCY+30* — — ns
16 TCKH2IOI Port in hold after CLKOUT↑
(1)
0* — — ns
17 TOSH2IOVOSC1↑ (Q1 cycle) to Port out valid
(2)
— — 100* ns
18 T
OSH2IOIOSC1↑ (Q2 cycle) to Port input invalid
(I/O in hold time)
TBD — — ns
19 T
IOV2OSH Port input valid to OSC1↑
(I/O in setup time)
TBD — — ns
20 T
IOR Port output rise time
(2, 3)
— 10 25** ns
20 TIOR Port output rise time
(2, 4)
— 10 50** ns
21 T
IOF Port output fall time
(2, 3)
— 10 25** ns
21 TIOF Port output fall time
(2, 4)
— 10 50** ns
Legend: TBD = To Be Determined.
* These parameters are characterized but not tested.
** These parameters are design targets and are not tested. No characterization data available at this time.
† Data in the Typical (“Typ”) column is at 5.0V, 25°C unless otherwise stated. These parameters are for
design guidance only and are not tested.
Note 1: Measurements are taken in RC mode where CLKOUT output is 4 x T
OSC.
2: Please refer to Figure 11-2 for load conditions.
3: PIC16F54/57 only.
4: PIC16F59 only.
OSC1
CLKOUT
I/O Pin
(input)
I/O Pin
(output)
Q4
Q1
Q2 Q3
10
13
14
17
20, 21
18
15
11
12
16
Old Value
New Value
19
Note: Please refer to Figure 11-2 for load conditions.