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| 型号： | MAX823MEXK+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/10页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU SC70-5 |
| 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 140 ms |
| 电压 - 阀值： | 4.38V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-TSSOP（5 引线），SC-88A，SOT-353 |
| 供应商设备封装： | SC-70-5 |
| 包装： | 带卷 (TR) |
5-Pin Microprocessor Supervisory Circuits With
Watchdog Timer and Manual Reset
Pin Description
MAX823
PIN
MAX824
MAX825
NAME
FUNCTION
Active-Low Reset Output. Pulses low for 200ms when triggered, and remains
1
1
1
RESET
low whenever V CC is below the reset threshold or when MR is a logic low. It
remains low for 200ms after one of the following occurs: V CC rises above the
reset threshold, the watchdog triggers a reset, or MR goes low to high.
2
2
2
GND
Ground
Manual Reset Input. A logic low on MR asserts reset. Reset remains asserted as
3
—
4
MR
long as MR is held low and for 200ms after MR returns high. The active-low input
has an internal 52k ? pullup resistor. It can be driven from a CMOS logic line or
shorted to ground with a switch. Leave open or connect to V CC if unused.
—
3
3
RESET
Active-High Reset Output. Inverse of RESET .
Watchdog Input. If WDI remains either high or low for longer than the watch-
dog timeout period, the internal watchdog timer runs out and a reset is trig-
4
4
—
WDI
gered. The internal watchdog timer clears whenever reset is asserted, or
whenever WDI sees a rising or falling edge. If WDI is left unconnected or is
connected to a three-stated buffer output, the watchdog feature is disabled.
5
5
5
V CC
Supply Voltage
V CC
MR
(MAX823/MAX825
ONLY)
V CC
1.25V
RESET
GENERATOR
MAX823
MAX824
MAX825
RESET
RESET
(MAX824/MAX825
ONLY)
WDI
(MAX823/MAX824
WATCHDOG
TRANSITION
DETECTOR
WATCHDOG
TIMER
ONLY)
GND
Figure 1. Functional Diagram
6
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX823R | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:5-Pin Microprocessor Supervisory Circuits With Watchdog Timer and Manual Reset |
| MAX823REUK | 制造商:Maxim Integrated Products 功能描述:5-PIN MICROPROCESSOR SUPERVISORY CIRCUITS WITH WATCHDOG TIME - Rail/Tube |
| MAX823REUK+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.63V 5UA 5PIN SOT-23 - Rail/Tube 制造商:Maxim Integrated Products 功能描述:Bulk |
| MAX823REUK+T | 功能描述:监控电路 5-Pin MPU Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX823REUK-T | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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