PIC18F23K22 Datasheet, PDF (448/492 Pages) Microchip Technology – 28/40/44-Pin, Low-Power, High-Performance Microcontrollers with nanoWatt XLP Technology

PIC18(L)F2X/4XK22
TABLE 27-11: TIMER0 AND TIMER1/3/5 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:
—
ns N = prescale
20 ns or
value
(TCY + 40)/N
(1, 2, 4,..., 256)
45
Tt1H
TxCKI High
Time
Synchronous, no prescaler
Synchronous,
with prescaler
0.5 TCY + 20
—
ns
10
—
ns
Asynchronous
30
—
ns
46
Tt1L
TxCKI Low
Time
Synchronous, no prescaler
Synchronous,
with prescaler
0.5 TCY + 5
10
—
ns
—
ns
Asynchronous
30
—
ns
47
Tt1P
TxCKI Input Synchronous
Period
Greater of:
—
ns N = prescale
20 ns or
value (1, 2, 4, 8)
(TCY + 40)/N
Asynchronous
60
—
ns
Ft1
TxCKI Clock Input Frequency Range
DC
50
kHz
48
Tcke2tmrI Delay from External TxCKI Clock Edge to Timer
Increment
2 TOSC
7 TOSC —
FIGURE 27-9:
CAPTURE/COMPARE/PWM TIMINGS (ALL CCP MODULES)
CCPx
(Capture Mode)
50
51
52
CCPx
(Compare or PWM Mode)
53
54
Note: Refer to Figure 27-3 for load conditions.
DS41412B-page 448
Preliminary
 2010 Microchip Technology Inc.