PIC18F25K80 MICROCHIP [Microchip Technology], PIC18F25K80 Datasheet - Page 576

• Manufacturer Part Number: PIC18F25K80
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F66K80 FAMILY
FIGURE 31-9:
TABLE 31-13: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
DS39977C-page 576
Param
40
41
42
45
46
47
48
No.
T
T
T
T
T
T
F
T
Note:
CKE
SOSCO/SCLKI
Symbol
T
T
T
T
T
T
T
0H
0L
0P
1H
1L
1P
1
2
TMR
TMR0 or
TxCKI
TMR1
I Delay from External T1CKI Clock Edge to
Refer to
T0CKI High Pulse Width
T0CKI Low Pulse Width
T0CKI Period
T1CKI High
Time
T1CKI Low
Time
T1CKI Input
Period
T1CKI Oscillator Input Frequency Range
Timer Increment
TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
Figure 31-3
Synchronous, no prescaler
Synchronous, with prescaler
Asynchronous
Synchronous, no prescaler
Synchronous, with prescaler
Asynchronous
Synchronous
Asynchronous
Characteristic
for load conditions.
40
45
Preliminary
No prescaler
With prescaler
No prescaler
With prescaler
No prescaler
With prescaler
42
47
0.5 T
0.5 T
(T
0.5 T
(T
0.5 T
Greater of:
Greater of:
41
T
CY
46
20 ns or
20 ns or
CY
2 T
CY
Min
DC
CY
CY
CY
10
10
+ 40)/N
10
30
10
30
60
+ 40)/N
CY
OSC
+ 10
+ 20
+ 20
+ 20
+ 5
7 T
Max
 2011 Microchip Technology Inc.
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
OSC
48
Units
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
—
N = prescale
value
(1, 2, 4,..., 256)
N = prescale
value
(1, 2, 4, 8)
Conditions