PIC16F88

Manufacturer Part NumberPIC16F88
ManufacturerMicrochip Technology Inc.
PIC16F88 datasheet
 
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PIC16F87/88
FIGURE 18-5:
CLKO AND I/O TIMING
Q4
OSC1
CLKO
I/O Pin
(Input)
I/O Pin
Old Value
(Output)
Note: Refer to Figure 18-3 for load conditions.
TABLE 18-4:
CLKO AND I/O TIMING REQUIREMENTS
Param
Symbol
Characteristic
No.
10*
TosH2ckL
OSC1
to CLKO
11*
TosH2ckH OSC1
to CLKO
12*
TckR
CLKO Rise Time
13*
TckF
CLKO Fall Time
14*
TckL2ioV
CLKO
to Port Out Valid
15*
TioV2ckH
Port In Valid before CLKO
16*
TckH2ioI
Port In Hold after CLKO
17*
TosH2ioV
OSC1
(Q1 cycle) to Port Out Valid
18*
TosH2ioI
OSC1
(Q2 cycle) to
Port Input Invalid (I/O in
hold time)
19*
TioV2osH
Port Input Valid to OSC1
20*
T
R
Port Output Rise Time
IO
21*
T
F
Port Output Fall Time
IO
22††*
T
INT Pin High or Low Time
INP
23††*
T
RB7:RB4 Change INT High or Low Time
RBP
*
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 edges.
Note 1:
Measurements are taken in RC mode where CLKO output is 4 x T
DS30487C-page 180
Q1
Q2
10
13
18
19
14
15
17
20, 21
Min
T
+ 200
OSC
0
PIC16F87/88
100
PIC16LF87/88
200
(I/O in setup time)
0
PIC16F87/88
PIC16LF87/88
PIC16F87/88
PIC16LF87/88
T
CY
T
CY
.
OSC
Q3
11
12
16
New Value
Typ†
Max
Units Conditions
75
200
ns
(Note 1)
75
200
ns
(Note 1)
35
100
ns
(Note 1)
35
100
ns
(Note 1)
0.5 T
+ 20
ns
(Note 1)
CY
ns
(Note 1)
ns
(Note 1)
100
255
ns
ns
ns
ns
10
40
ns
145
ns
10
40
ns
145
ns
ns
ns
 2005 Microchip Technology Inc.