參數(shù)資料
型號: 16F628
廠商: Microchip Technology Inc.
英文描述: CAT 5E CROSSOVER PATCH CORD CABLE BLUE 1 FT
中文描述: 基于閃存的8位CMOS微控制器
文件頁數(shù): 145/168頁
文件大?。?/td> 3760K
代理商: 16F628
2002 Microchip Technology Inc.
Preliminary
DS40044A-page 143
PIC16F627A/628A/648A
TABLE 17-7:
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
TIMER REQUIREMENTS
FIGURE 17-8:
TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
Parameter
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
30
TmcL
MCLR Pulse Width (low)
2000
TBD
TBD
TBD
ns
ms
V
DD
= 5V, -40°C to +85°C
Extended temperature
31
Twdt
Watchdog Timer Time out Period
(No Prescaler)
7*
TBD
18
TBD
33*
TBD
ms
ms
V
DD
= 5V, -40°C to +85°C
Extended temperature
32
Tost
Oscillation Start-up Timer Period
1024T
OSC
T
OSC
= OSC1 period
33
Tpwrt
Power-up Timer Period
28*
TBD
72
TBD
132*
TBD
ms
ms
V
DD
= 5V, -40°C to +85°C
Extended temperature
34
TIOZ
I/O Hi-impedance from MCLR Low
or Watchdog Timer Reset
2.0*
μ
s
35
T
BOR
Brown-out Reset pulse width
100*
μ
s
V
DD
V
BOR
(D005)
*
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.
46
47
45
48
41
42
40
RA4/T0CKI
RB6/T1OSO/T1CKI
TMR0 OR
TMR1
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