PIC18F6525_13 Datasheet, PDF (344/400 Pages) Microchip Technology – 64/80-Pin High-Performance, 64-Kbyte Enhanced Flash Microcontrollers with A/D

PIC18F6525/6621/8525/8621
TABLE 27-12: 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 Synchronous, no prescaler
0.5 TCY + 20
High Time _{Synchronous, PIC18F6525/6621/}
10
with prescaler 8525/8621
—
ns
—
ns
PIC18LF6X2X/8X2X
25
—
ns
Asynchronous PIC18F6525/6621/
30
8525/8621
—
ns
PIC18LF6X2X/8X2X
50
—
ns
46
Tt1L
T13CKI Synchronous, no prescaler
0.5 TCY + 5
Low Time _{Synchronous, PIC18F6525/6621/}
10
with prescaler 8525/8621
—
ns
—
ns
PIC18LF6X2X/8X2X
25
—
ns
Asynchronous PIC18F6525/6621/
30
8525/8621
—
ns
PIC18LF6X2X/8X2X
TBD
TBD ns
47
Tt1P
T13CKI Synchronous
Input Period
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 —
Legend: TBD = To Be Determined
FIGURE 27-12: CAPTURE/COMPARE/PWM TIMINGS (ALL ECCP/CCP MODULES)
CCPx
(Capture Mode)
50
51
52
CCPx
(Compare or PWM Mode)
53
54
Note: Refer to Figure 27-4 for load conditions.
DS39612C-page 344
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