PIC18F2331 MICROCHIP [Microchip Technology], PIC18F2331 Datasheet - Page 361

• Manufacturer Part Number: PIC18F2331
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 25-9:
TABLE 25-9:
 2003 Microchip Technology Inc.
Param
40
41
42
45
46
47
48
No.
Note:
T1OSO/T1CKI
Tt0H
Tt0L
Tt0P
Tt1H
Tt1L
Tt1P
Ft1
Tcke2tmrI Delay from External T1CKI Clock Edge to
Symbol
TMR0 or
TMR1
T0CKI
Refer to Figure 25-4 for load conditions.
TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
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
Synchronous, no prescaler
Synchronous,
with prescaler
Asynchronous
Synchronous, no prescaler
Synchronous,
with prescaler
Asynchronous
Synchronous
Asynchronous
Characteristic
PIC18F2331/2431/4331/4431
40
45
No Prescaler
With Prescaler
No Prescaler
With Prescaler
No Prescaler
With Prescaler
PIC18FXX31
PIC18LFXX31
PIC18FXX31
PIC18LFXX31
PIC18FXX31
PIC18LFXX31
PIC18FXX31
PIC18LFXX31
Preliminary
42
47
20 ns or T
20 ns or T
0.5 T
0.5 T
0.5 T
41
0.5 T
46
Greater of:
Greater of:
T
2 T
CY
TBD
Min
DC
CY
10
CY
10
CY
10
25
30
50
10
25
30
60
CY
OSC
+ 10
CY
CY
+ 20
+ 20
+ 20
+ 5
N
N
+ 40
+ 40
7 T
TBD
Max
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
OSC
48
Units
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
—
DS39616B-page 359
N = prescale
value
(1, 2, 4,..., 256)
N = prescale
value
(1, 2, 4, 8)
Conditions