PIC16F688 Datasheet, PDF (149/174 Pages) Microchip Technology – 14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC16F688
FIGURE 14-4:
OSC1
CLKOUT
I/O pin
(Input)
I/O pin
(Output)
CLKOUT AND I/O TIMING
Q4
Q1
10
13
14
Q2
22
23
19 18
17
15
Old Value
20, 21
Q3
11
12
16
New Value
TABLE 14-3: CLKOUT AND I/O TIMING REQUIREMENTS
Standard Operating Conditions (unless otherwise stated)
Operating Temperature-40°C ≤ TA ≤ +125°C
Param
No.
Sym
Characteristic
Min
Typ†
10
TosH2ckL OSC1↑ to CLOUT↓
11
TosH2ckH OSC1↑ to CLOUT↑
12
TckR
CLKOUT Rise Time
—
75
—
75
—
35
13
TckF
CLKOUT Fall Time
—
35
14
TckL2ioV CLKOUT↓ to Port Out Valid
—
—
15
TioV2ckH Port In Valid before CLKOUT↑
TOSC + 200 ns —
16
TckH2ioI Port In Hold after CLKOUT↑
0
—
17
TosH2ioV OSC1↑ (Q1 cycle) to Port Out Valid
—
50
—
—
18
TosH2ioI OSC1↑ (Q2 cycle) to Port Input
Invalid (I/O in hold time)
100
—
19
TioV2osH Port Input Valid to OSC1↑
(I/O in setup time)
0
—
20
TioR
Port Output Rise Time
—
10
21
TioF
Port Output Fall Time
—
10
22
Tinp
23
Trbp
INT Pin High or Low Time
PORTA change INT high or low
time
25
—
TCY
—
* These parameters are characterized but not tested.
† Data in ‘Typ’ column is at 5.0V, 25°C unless otherwise stated.
Note 1: Measurements are taken in RC mode where CLKOUT output is 4 x TOSC.
Max
200
200
100
100
20
—
—
150*
300
—
—
40
40
—
—
Units Conditions
ns (Note 1)
ns (Note 1)
ns (Note 1)
ns (Note 1)
ns (Note 1)
ns (Note 1)
ns (Note 1)
ns
ns
ns
ns
ns
ns
ns
ns
 2004 Microchip Technology Inc.
Preliminary
DS41203B-page 147