PIC12F508T-I Datasheet, PDF (50/110 Pages) Microchip Technology – 8/14-Pin, 8-Bit Flash Microcontrollers

PIC12F508/509/16F505
FIGURE 7-7:
VDD
SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT
Power-up
Detect
POR (Power-on Reset)
(GP3/RB3)/MCLR/VPP
MCLR Reset
S
MCLRE
WDT Time-out
Pin Change
Sleep
WDT Reset
Wake-up on pin Change Reset
R
Start-up Timer
(10 μs or 18 ms)
Q
Q
CHIP Reset
FIGURE 7-8:
TIME-OUT SEQUENCE ON POWER-UP (MCLR PULLED LOW)
VDD
MCLR
Internal POR
TDRT
DRT Time-out
Internal Reset
FIGURE 7-9:
TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO VDD): FAST VDD RISE
TIME
VDD
MCLR
Internal POR
DRT Time-out
Internal Reset
TDRT
DS41236E-page 50
© 2009 Microchip Technology Inc.