PIC18F1220_07 Datasheet, PDF (264/308 Pages) Microchip Technology – 18/20/28-Pin High-Performance, Enhanced Flash Microcontrollers with 10-bit A/D and nanoWatt Technology

PIC18F1220/1320
TABLE 22-9: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
Param
No.
Symbol
Characteristic
Min
Max Units Conditions
40 Tt0H T0CKI High Pulse Width
No prescaler 0.5 TCY + 20
— ns
With prescaler
10
— ns
41 Tt0L
T0CKI Low Pulse Width
No prescaler 0.5 TCY + 20
— ns
With prescaler
10
— ns
42 Tt0P
T0CKI Period
No prescaler
TCY + 10
— ns
With prescaler Greater of:
—
20 ns or TCY + 40
N
ns N = prescale
value
(1, 2, 4,..., 256)
45 Tt1H T13CKI High Time Synchronous, no prescaler
0.5 TCY + 20
— ns
Synchronous, PIC18F1X20
10
with prescaler _PIC18LF1X20
25
— ns
— ns
Asynchronous PIC18F1X20
30
— ns
PIC18LF1X20
50
— ns
46 Tt1L
T13CKI Low Time Synchronous, no prescaler
0.5 TCY + 5
— ns
Synchronous, PIC18F1X20
10
with prescaler _PIC18LF1X20
25
— ns
— ns
Asynchronous PIC18F1X20
30
— ns
PIC18LF1X20
50
— ns
47 Tt1P
T13CKI Input
Period
Synchronous
Greater of:
—
20 ns or TCY + 40
N
ns N = prescale
value
(1, 2, 4, 8)
Asynchronous
60
— ns
Ft1
T13CKI Oscillator Input Frequency Range
DC
50 kHz
48 Tcke2tmrI Delay from External T13CKI Clock Edge to
Timer Increment
2 TOSC
7 TOSC —
FIGURE 22-11: CAPTURE/COMPARE/PWM TIMINGS (ALL CCP MODULES)
CCPx
(Capture Mode)
50
51
52
CCPx
(Compare or PWM Mode)
53
54
Note: Refer to Figure 22-5 for load conditions.
DS39605F-page 262
© 2007 Microchip Technology Inc.