Datasheet

PIC18F2450/4450
DS39760D-page 290 © 2008 Microchip Technology Inc.
FIGURE 21-10: CAPTURE/COMPARE/PWM TIMINGS (CCP MODULE)
TABLE 21-12: CAPTURE/COMPARE/PWM REQUIREMENTS
Param
No.
Symbol Characteristic Min Max Units Conditions
50 TccL CCP1 Input
Low Time
No prescaler 0.5 T
CY + 20 — ns
With
prescaler
PIC18FXXXX 10 — ns
PIC18LFXXXX 20 — ns VDD = 2.0V
51 TccH CCP1 Input
High Time
No prescaler 0.5 T
CY + 20 — ns
With
prescaler
PIC18FXXXX 10 — ns
PIC18LFXXXX 20 — ns VDD = 2.0V
52 TccP CCP1 Input Period 3 T
CY + 40
N
—nsN = prescale
value (1, 4 or 16)
53 TccR CCP1 Output Fall Time PIC18FXXXX — 25 ns
PIC18LFXXXX — 45 ns V
DD = 2.0V
54 TccF CCP1 Output Fall Time PIC18FXXXX — 25 ns
PIC18LFXXXX — 45 ns VDD = 2.0V
Note: Refer to Figure 21-4 for load conditions.
CCP1
(Capture Mode)
50 51
52
CCP1
53
54
(Compare or PWM Mode)