參數資料
型號： PIC16CR7X
廠商： Microchip Technology Inc.
英文描述： 28/40-Pin, 8-Bit CMOS ROM Microcontrollers
中文描述： 28/40-Pin，8位微控制器的CMOS光盤
文件頁數： 128/172頁
文件大?。?/td> 1506K
代理商： PIC16CR7X
PIC16CR7X
DS21993C-page 126
2007 Microchip Technology Inc.
FIGURE 15-5:
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND
POWER-UP TIMER TIMING
FIGURE 15-6:
BROWN-OUT RESET TIMING
TABLE 15-3:
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER
AND BROWN-OUT RESET REQUIREMENTS
Parameter
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
30
31*
TmcL
T
WDT
MCLR Pulse Width (low)
Watchdog Timer Time-out Period
(No Prescaler)
Oscillation Start-up Timer Period
Power-up Timer Period
2
7
—
18
—
33
μ
s
ms
V
DD
= 5V, -40°C to +85°C
V
DD
= 5V, -40°C to +85°C
32
33*
T
OST
T
PWRT
—
28
1024 T
OSC
72
—
132
—
ms
T
OSC
= OSC1 period
V
DD
= 5V, -40°C to +85°C
34
T
IOZ
I/O High-impendance from MCLR
Low or Watchdog Timer Reset
Brown-out Reset Pulse Width
These parameters are characterized but not tested.
Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance
only and are not tested.
—
—
2.1
μ
s
35
T
BOR
100
—
—
μ
s
V
DD
≤
V
BOR
(D005)
*
V
DD
MCLR
Internal
POR
PWRT
Time-out
OSC
Time-out
Internal
RESET
Watchdog
Timer
Reset
33
32
30
31
34
I/O Pins
34
Note:
Refer to Figure 15-2 for load conditions.
V
DD
V
BOR
35
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