參數(shù)資料
型號: P12C508
廠商: Microchip Technology Inc.
英文描述: 8-Pin, 8-Bit CMOS Microcontroller
中文描述: 8引腳,8位CMOS微控制器
文件頁數(shù): 59/84頁
文件大小: 526K
代理商: P12C508
1996 Microchip Technology Inc.
Advance Information
DS40139A-page 59
PIC12C5XX
FIGURE 10-4: RESET, WATCHDOG TIMER, AND DEVICE RESET TIMER TIMING - PIC12C5XX
TABLE 10-3:
RESET, WATCHDOG TIMER, AND DEVICE RESET TIMER - PIC12C5XX
AC Characteristics Standard Operating Conditions (unless otherwise specified)
Operating Temperature
0
°
C
T
A
+70
°
C (commercial)
–40
°
C
T
A
+85
°
C (industrial)
Operating Voltage V
DD
range is described in Section 10.1
Parameter
No.
Sym
Characteristic
Min
Typ
(1)
Max
Units
Conditions
30
TmcL
MCLR Pulse Width (low)
2000*
ns
V
DD
= 5 V
31
Twdt
Watchdog Timer Time-out Period
(No Prescaler)
9*
18*
30*
ms
V
DD
= 5 V (Commercial)
32
T
DRT
Device Reset Timer Period
(2)
9*
18*
30*
ms
V
DD
= 5 V (Commercial)
34
Tio
Z
I/O Hi-impedance from MCLR Low
100*
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
2: DRT runs only on power-up and in normal execution in EXTRC and INTRC modes, and never runs in test
modes. (i.e. does not run on wake-up from sleep)
V
DD
MCLR
Internal
POR
DRT
Timeout
(Note 2)
Internal
RESET
Watchdog
Timer
RESET
32
31
34
I/O pin
(Note 1)
32
32
34
Note 1: I/O pins must be taken out of hi-impedance mode by enabling the output drivers in software.
2: Runs in MCLR or WDT reset only in XT and LP modes.
30
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