PIC18C242 MICROCHIP [Microchip Technology], PIC18C242 Datasheet - Page 255

• Manufacturer Part Number: PIC18C242
• Description: High-Performance Microcontrollers with 10-Bit A/D
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 21-6: CLKOUT AND I/O TIMING
TABLE 21-6:
Param.
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 CLKOUT output is 4 x T
7/99 Microchip Technology Inc.
No.
CLKOUT
I/O Pin
(output)
††These parameters are asynchronous events not related to any internal clock edges.
I/O Pin
(input)
OSC1
TosH2ckL OSC1 to CLKOUT
TosH2ckH OSC1 to CLKOUT
TckR
TckF
TckL2ioV
TioV2ckH Port in valid before CLKOUT
TckH2ioI
TosH2ioV OSC1 (Q1 cycle) to Port out valid
TosH2ioI
TioV2osH Port input valid to OSC1
TioR
TioF
T
T
T
Note: Refer to Figure 21-4 for load conditions.
Symbol
RBP
RCP
INP
CLKOUT AND I/O TIMING REQUIREMENTS
Port in hold after CLKOUT
CLKOUT rise time
CLKOUT fall time
CLKOUT
OSC1 (Q2 cycle) to
Port input invalid
(I/O in hold time)
(I/O in setup 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
Q4
to Port out valid
Characteristic
10
13
17
PIC18CXXX
PIC18LCXXX
PIC18CXXX
PIC18LCXXX
PIC18CXXX
PIC18LCXXX
14
20, 21
Q1
Preliminary
19
0.25T
Min
100
200
T
T
—
—
—
—
—
—
—
—
—
—
20
CY
18
0
0
CY
CY
+ 25
Q2
15
Typ
75
75
35
35
—
—
—
50
—
—
—
10
—
10
—
—
—
OSC
.
0.5T
Max
PIC18CXX2
200
200
100
100
150
CY
25
60
25
60
—
—
—
—
—
—
—
+ 20
11
12
Units Conditions
new value
DS39026B-page 255
16
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Q3
(1)
(1)
(1)
(1)
(1)
(1)
(1)