Datasheet

PIC17C7XX
DS30289C-page 26  1998-2013 Microchip Technology Inc.
In Figure 5-5, Figure 5-6 and Figure 5-7, the TPWRT
timer time-out is greater then the TOST timer time-out,
as would be the case in higher frequency crystals. For
lower frequency crystals (i.e., 32 kHz), TOST may be
greater.
FIGURE 5-5: TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO VDD)
FIGURE 5-6: TIME-OUT SEQUENCE ON POWER-UP (MCLR
NOT TIED TO VDD)
FIGURE 5-7: SLOW RISE TIME (MCLR
TIED TO VDD)
TPWRT
TOST
VDD
MCLR
INTERNAL POR
PWRT TIME-OUT
OST TIME-OUT
INTERNAL RESET
TPWRT
TOST
VDD
MCLR
INTERNAL POR
PWRT TIME-OUT
OST TIME-OUT
INTERNAL RESET
VDD
MCLR
INTERNAL POR
PWRT TIME-OUT
OST TIME-OUT
INTERNAL RESET
0V
1V
5V
T
PWRT
TOST
Minimum VDD Operating Voltage