PIC18F2480 MICROCHIP [Microchip Technology], PIC18F2480 Datasheet - Page 440

• Manufacturer Part Number: PIC18F2480
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F2480/2580/4480/4580
FIGURE 27-9:
TABLE 27-11: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
DS39637A-page 438
Param
40
41
42
45
46
47
48
No.
Note:
T
T
T
T
T
T
F
T
T1OSO/T13CKI
CKE
T
T
T
T
T
T
T
0H
0L
0P
1H
1L
1P
1
Sym
2
TMR
TMR0 or
Refer to Figure 27-4 for load conditions.
T0CKI
I Delay from External T13CKI Clock Edge to
TMR1
T0CKI High Pulse Width
T0CKI Low Pulse Width
T0CKI Period
T13CKI High
Time
T13CKI Low
Time
T13CKI Input
Period
T13CKI Oscillator Input Frequency Range
Timer Increment
TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
Synchronous, no prescaler
Synchronous,
with prescaler
Asynchronous
Synchronous, no prescaler
Synchronous,
with prescaler
Asynchronous
Synchronous
Asynchronous
Characteristic
40
45
Preliminary
No prescaler
With prescaler
No prescaler
With prescaler
No prescaler
With prescaler
PIC18FXXXX
PIC18LFXXXX
PIC18FXXXX
PIC18LFXXXX
PIC18FXXXX
PIC18LFXXXX
PIC18FXXXX
PIC18LFXXXX
42
47
0.5 T
0.5 T
(T
0.5 T
(T
0.5 T
Greater of:
Greater of:
T
CY
20 ns or
20 ns or
CY
2 T
41
CY
46
Min
DC
CY
CY
CY
10
10
+ 40)/N
10
25
30
50
10
25
30
50
60
+ 40)/N
CY
OSC
+ 10
+ 20
+ 20
+ 20
+ 5
7 T
Max
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
OSC
 2004 Microchip Technology Inc.
48
Units
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
—
N = prescale value
(1, 2, 4,..., 256)
V
V
V
V
N = prescale value
(1, 2, 4, 8)
DD
DD
DD
DD
Conditions
= 2.0V
= 2.0V
= 2.0V
= 2.0V