PIC18F258 MICROCHIP [Microchip Technology], PIC18F258 Datasheet - Page 340

• Manufacturer Part Number: PIC18F258
• Description: High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18FXX8
TABLE 27-7:
FIGURE 27-6:
TABLE 27-8:
DS41159B-page 338
7
10
11
12
13
14
15
16
17
18
18A
19
20
20A
21
21A
22††
23††
24††
Note 1: Measurements are taken in RC mode where CLKO pin output is 4 x T
Param No. Symbol
Param
No.
Note: Refer to Figure 27-4 for load conditions.
I/O Pin
(Output)
I/O Pin
(Input)
CLKO
OSC1
†† These parameters are asynchronous events, not related to any internal clock edges.
TosH2ckL OSC1 to CLKO
TosH2ckH OSC1 to CLKO
TckR
TckF
TckL2ioV CLKO
TioV2ckH Port in valid before CLKO
TckH2ioI
TosH2ioV OSC1 (Q1 cycle) to Port out valid
TosH2ioI OSC1 (Q2 cycle) to Port
TioV2osH Port input valid to OSC1 (I/O in setup time)
T
T
T
T
T
Symbol
IO
IO
INP
RBP
RCP
R
F
T
PLL
CLK
PLL CLOCK TIMING SPECIFICATION (V
CLKO AND I/O TIMING REQUIREMENTS
CLKO rise time
CLKO fall time
Port in hold after CLKO
input invalid (I/O in hold time)
Port output rise time
Port output fall time
INT pin high or low time
RB7:RB4 change INT high or low time
RC7:RC4 change INT high or low time
Old Value
CLKO AND I/O TIMING
PLL Start-up Time (Lock Time)
CLKO Stability (Jitter) using PLL
Q4
to Port out valid
Characteristic
Characteristic
10
13
17
14
20, 21
PIC18FXX8
PIC18LFXX8
PIC18FXX8
PIC18LFXX8
PIC18FXX8
PIC18LFXX8
Preliminary
Q1
19
TBD
Min
—
DD
0.25 T
18
= 4.2V - 5.5V)
Min
100
200
T
T
20
—
—
—
—
—
—
—
—
—
—
CY
0
0
CY
CY
Max
TBD
+ 25
Q2
2
15
OSC
Typ
75
75
35
35
50
10
10
—
—
—
—
—
—
—
—
—
—
—
Units
.
ms
%
0.5 T
2002 Microchip Technology Inc.
Max
200
200
100
100
150
CY
25
60
25
60
—
—
—
—
—
—
—
—
11
12
+ 20
Conditions
New Value
16
Units Conditions
Q3
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(1)
(1)
(1)
(1)
(1)
(1)
(1)