Datasheet

PIC12F635/PIC16F636/639
DS41232D-page 72 © 2007 Microchip Technology Inc.
FIGURE 7-3: COMPARATOR C1 OUTPUT BLOCK DIAGRAM (PIC16F636/639)
FIGURE 7-4: COMPARATOR C2 OUTPUT BLOCK DIAGRAM (PIC16F636/639)
DQ
EN
To C1OUT pin
RD CMCON0
Set C1IF bit
MULTIPLEX
Port Pins
Q3*RD CMCON0
Reset
To Data Bus
C1INV
DQ
EN
CL
Q1
Note 1: Q1 and Q3 are phases of the four-phase system clock (FOSC).
2: Q1 is held high during Sleep mode.
C1
C2SYNC
DQ
EN
To C2OUT pin
RD CMCON0
Set C2IF bit
MULTIPLEX
Port Pins
Q3*RD CMCON0
Reset
To Data Bus
C2INV
Timer1
clock source
(1)
0
1
To Timer1 Gate
DQ
DQ
EN
CL
Q1
Note 1: Comparator output is latched on falling edge of Timer1 clock source.
2: Q1 and Q3 are phases of the four-phase system clock (F
OSC).
3: Q1 is held high during Sleep mode.
C2