PIC16HV540 Microchip Technology, PIC16HV540 Datasheet - Page 37
PIC16HV540
Manufacturer Part Number
PIC16HV540
Description
Enhanced PIC16C54 EPROM-Based 8-Bit CMOS Microcontroller
Manufacturer
Microchip Technology
Datasheet
1.PIC16HV540.pdf
(85 pages)
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FIGURE 7-8:
FIGURE 7-9:
FIGURE 7-10: TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO V
2000 Microchip Technology Inc.
INTERNAL RESET
INTERNAL RESET
INTERNAL RESET
INTERNAL POR
INTERNAL POR
DRT TIME-OUT
INTERNAL POR
DRT TIME-OUT
DRT TIME-OUT
MCLR
MCLR
MCLR
V
V
V
TIME-OUT SEQUENCE ON POWER-UP (MCLR NOT TIED TO V
DD
TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO V
DD
When V
this example, the chip will reset properly if, and only if, V1
DD
DD
rises slowly, the T
T
DRT
V1
DRT
T
DRT
time-out expires long before V
Preliminary
V
DD
DD
min.
has reached its final value. In
PIC16HV540
DD
DD
): SLOW V
): FAST V
DD
)
T
DRT
DD
DS40197B-page 37
DD
RISE TIME
RISE TIME