参数资料
型号: MAX6303CSA+T
厂商: Maxim Integrated Products
文件页数: 3/12页
文件大小: 0K
描述: IC SUPERVISOR MPU 8-SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 简单复位/加电复位
监视电压数目: 1
输出: 推挽式,图腾柱
复位: 低有效
复位超时: 最小为 2.8 ms
电压 - 阀值: 可调节/可选择
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
+5V, Low-Power μP Supervisory Circuits
with Adjustable Reset/Watchdog
ELECTRICAL CHARACTERISTICS (continued)
(V CC = +2V to +5.5V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5V and T A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
WATCHDOG TIMER
WDI, WDS Input Threshold
V IH
V IL
0.7 x V CC
0.3 x V CC
V
WDI Pulse Width
WDI, WDS Leakage Current
WDI Sink/Source Current (Note 4)
t WP
V CC = 4.5V to 5.5V
V CC = 2V to 4.5V
Extended mode disabled
Extended mode enabled
30
60
±70
±1
ns
μA
μA
Watchdog Timeout Period
(Note 3)
t WD
WDS = GND, C SWT = 1500pF
WDS = V CC , C SWT = 1500pF
2.8
1.4
4.0
2.0
5.2
2.6
ms
s
Note 1: Reset is guaranteed valid from the selected reset threshold voltage down to the minimum V CC .
Note 2: WDS = V CC , WDI unconnected.
Note 3: Precision timing currents of 500nA are present at both the SRT and SWT pins. Timing capacitors connected to these nodes
must have low leakage consistent with these currents to prevent timing errors.
Note 4: The sink/source is supplied through a resistor, and is proportional to V CC (Figure 8). At V CC = 2V, it is typically ±24μA.
__________________________________________Typical Operating Characteristics
(C SWT = C SRT = 1500pF, T A = +25°C, unless otherwise noted.)
10,000
RESET TIMEOUT PERIOD
vs. C SRT
V CC = 5V
10,000
EXTENDED-MODE
WATCHDOG TIMEOUT PERIOD vs. C SWT
(WDS = V CC )
V CC = 5V
10,000
NORMAL-MODE
WATCHDOG TIMEOUT PERIOD vs. C SWT
(WDS = GND)
V CC = 5V
1000
100
10
1
1000
100
10
1
1000
100
10
1
0
0.001
0.01
0.1
1
10
100
1000
0
0.001
0.01
0.1
1
10
100
1000
0.1
0.001
0.01
0.1
1
10
100
1000
C SRT (nF)
C SWT (nF)
C SWT (nF)
_______________________________________________________________________________________
3
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