PIC16C620 Microchip Technology, PIC16C620 Datasheet - Page 90
PIC16C620
Manufacturer Part Number
PIC16C620
Description
EPROM-Based 8-Bit CMOS Microcontroller
Manufacturer
Microchip Technology
Datasheet
1.PIC16C620.pdf
(108 pages)
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PIC16C62X
FIGURE 12-4: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
FIGURE 12-5: BROWN-OUT RESET TIMING
TABLE 12-6:
DS30235G-page 90
Parameter
*
†
Watchdog
No.
30
31
32
33
34
35
Timeout
I/O Pins
Timeout
Internal
Internal
RESET
RESET
MCLR
PWRT
Timer
POR
OSC
V
These parameters are characterized but not tested.
Data in "Typ" column is at 5.0V, 25 C unless otherwise stated. These parameters are for design guidance
only and are not tested.
V
DD
DD
TmcL
Tpwrt
T
Sym
Twdt
T
Tost
BOR
IOZ
TIMER TIMING
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
TIMER REQUIREMENTS
Characteristic
MCLR Pulse Width (low)
Watchdog Timer Time-out Period
(No Prescaler)
Oscillation Start-up Timer Period
Power-up Timer Period
I/O hi-impedance from MCLR low
Brown-out Reset Pulse Width
33
32
Preliminary
34
2000
100*
Min
28*
—
7*
BV
DD
1024 T
Typ†
18
72
30
—
—
—
OSC
132*
Max
33*
35
2.0
—
—
—
Units
ms
ms
ns
—
31
s
s
1998 Microchip Technology Inc.
-40 to +85 C
V
T
V
3.7V
OSC
34
DD
DD
= 5.0V, -40 to +85 C
= 5.0V, -40 to +85 C
= OSC1 period
V
DD
Conditions
4.3V