參數(shù)資料
型號(hào): CAT824MSDI-G
英文描述: System Supervisory Voltage Reset with Watchdog and Manual Reset
中文描述: 系統(tǒng)監(jiān)控電壓復(fù)位,帶有看門狗和手動(dòng)復(fù)位
文件頁數(shù): 5/14頁
文件大?。?/td> 210K
代理商: CAT824MSDI-G
CAT823, CAT824, CAT825
Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
5
Doc. No. MD-3027, Rev. A
ELECTRICAL OPERATING CHARACTERISTICS (continued)
DC Characteristics: V
CC
= 3.0V to 5.5V for L/M versions; V
CC
= 2.0V to 3.6V for the R/S/T/Y/Z version,
-40oC
T
A
+85oC unless otherwise noted. Typical Values at T
A
= 25oC and V
CC
= 5V for L/M versions;
V
CC
= 3.3V for the T/S versions; V
CC
= 3.0V for the R version; and V
CC
= 2.5V for the Y/Z versions.
Symbol Parameter
WATCHDOG INPUT (CAT823 & CAT824)
t
WD
Watchdog Timeout Period
t
WDI
WDI Pulse Width
V
IL
V
IH
Conditions
Min
Typ
Max
Units
V
IL
= 0.4V, V
IH
= 0.8 x V
CC
1.12
50
0.7 x V
CC
-20
1.60
120
-15
3.20
0.3 x V
CC
160
s
ns
WDI Input Voltage
(3)
V
WDI = V
CC
, Time Average
WDI = 0V, Time Average
WDI Input Current
(4)
μA
MANUAL RESET INPUT(CAT823 & CAT825)
V
IL
V
IH
t
PB
MR
ˉˉˉ Pulse Width
t
PDLY
MR
ˉˉˉ low to Reset Delay
MR
ˉˉˉ Noise Immunity
MR
ˉˉˉ Pullup Resistance (internal)
0.3 x V
CC
5
75
MR
ˉˉˉ Input Voltage
0.7 x V
CC
1
35
V
Pulse Width with No Reset
μs
μs
ns
k
100
52
Notes:
(3) WDI is internally serviced within the watchdog period if WDI is left open.
(4) The WDI input current is specified as an average input current when the WDI input is driven high or low. The WDI input if connected to a
three-stated output device can be disabled in the tristate mode as long as the leakage current is less than 10μA and a maximum
capacitance of less than 200pF. To clock the WDI input in the active mode the drive device must be able to source or sink at least 200μA
when active.
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