Datasheet

PIC16F87/88
DS30487D-page 48  2002-2013 Microchip Technology Inc.
FIGURE 4-11: PRIMARY SYSTEM CLOCK AFTER RESET (EC, RC, INTRC)
Q4 Q1
Q3 Q4 Q1 Q2
OSC1
Program
PC 0000h
T1OSI
Q3
T
T1P
(1)
Q4
OSC2
OSTS
System Clock
0001h
Q1 Q2 Q3 Q4
Q1 Q2
Counter
0003h 0004h
0002h
Q1 Q2 Q3 Q4
MCLR
TCPU
(2)
Note 1: TT1P = 30.52 s.
2: T
CPU = 5-10 s (1 MHz system clock).
CPU Start-up