參數(shù)資料
型號: MCV14AI/P
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PDIP14
封裝: 0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-14
文件頁數(shù): 71/84頁
文件大?。?/td> 1007K
代理商: MCV14AI/P
2009 Microchip Technology Inc.
Preliminary
DS41338B-page 71
MCV14A
FIGURE 11-6:
RESET, WATCHDOG TIMER AND DEVICE RESET TIMER TIMING
TABLE 11-9:
RESET, WATCHDOG TIMER AND DEVICE RESET TIMER
AC CHARACTERISTICS
Standard Operating Conditions (unless otherwise specified)
Operating Temperature -40
°C ≤ TA ≤ +85°C (industrial)
Operating Voltage VDD range is described in
Param
No.
Sym
Characteristic
Min
Typ(1)
Max
Units
Conditions
30
TMCLMCLR Pulse Width (low)
2000*
ns
VDD = 5.0V
31
TWDT
Watchdog Timer Time-out Period
(no prescaler)
9*
18*
30*
ms
VDD = 5.0V (Industrial)
32
TDRT
Device Reset Timer Period
9*
18*
30*
ms
VDD = 5.0V (Industrial)
34
TIOZ
I/O High-impedance from MCLR
low
2000*
ns
*
These parameters are characterized but not tested.
Note 1:
Data in the Typical (“Typ”) column is at 5V, 25
°C unless otherwise stated. These parameters are for
design guidance only and are not tested.
VDD
MCLR
Internal
POR
DRT
Time-out(2)
Internal
Reset
Watchdog
Timer
Reset
32
31
34
I/O pin(1)
32
34
30
Note
1:
I/O pins must be taken out of High-Impedance mode by enabling the output drivers in software.
2:
Runs in MCLR or WDT Reset only in XT, LP and HS modes.
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