RFPIC12C509AG Microchip Technology Inc., RFPIC12C509AG Datasheet - Page 51

• Manufacturer Part Number: RFPIC12C509AG
• Description: 18/20-pin 8-bit Cmos Microcontroller With Uhf Ask/fsk Transmitter
• Manufacturer: Microchip Technology Inc.

FIGURE 8-6:
FIGURE 8-7:
FIGURE 8-8:
©
2001 Microchip Technology Inc.
INTERNAL RESET
GP3/MCLR/V
INTERNAL RESET
INTERNAL POR
DRT TIME-OUT
INTERNAL POR
DRT TIME-OUT
V
DD
PP
MCLRE
MCLR
MCLR
V
V
DD
DD
SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT
TIME-OUT SEQUENCE ON POWER-UP (MCLR PULLED LOW)
TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO V
TIME
Power-up
DRT OSC
Detect
On-chip
T
DRT
POR (Power-on Reset)
Preliminary
WDT Time-out
rfPIC12C509AG/509AF
(Start-up Timer)
Ripple Counter
8-bit Asynch
Pin Change
SLEEP
RESET
Wake-up on
pin change
DD
S
R
): FAST V
T
DRT
Q
Q
DS70031A-page 49
CHIP RESET
DD
RISE