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參數資料
| 型號： | MCP809M3-4.00 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 3-Pin Microprocessor Reset Circuits |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| 封裝： | SOT-23, 3 PIN |
| 文件頁數： | 1/7頁 |
| 文件大小： | 151K |
| 代理商： | MCP809M3-4.00 |
MCP809/MCP810
3-Pin Microprocessor Reset Circuits
General Description
The MCP809/810 microprocessor supervisory circuits can
be used to monitor the power supplies in microprocessor
and digital systems. They provide a reset to the micropro-
cessor during power-up, power-down and brown-out condi-
tions.
The function of the MCP809/810 is to monitor the V
CC
supply voltage, and assert a reset signal whenever this
voltage declines below the factory-programmed reset
threshold. The reset signal remains asserted for 240ms after
V
rises above the threshold. The MCP809 has an
active-low RESET output, while the MCP810 has an
active-high RESET output.
Seven standard reset voltage options are available, suitable
for monitoring 5V, 3.3V, and 3V supply voltages.
With a low supply current of only 15μA, the MCP809/810 are
ideal for use in portable equipment. The MCP809/MCP810
are available in the 3-pin SOT23 package.
Features
n
Precise monitoring of 3V, 3.3V, and 5V supply voltages
n
Fully specified over temperature
n
140ms min. Power-On Reset pulse width, 240ms typical
Active-low RESET Output (MCP809)
Active-high RESET Output (MCP810)
n
Guaranteed RESET Output valid for V
CC
≥
1V
n
Low Supply Current, 15μA typ.
n
Power supply transient immunity
Applications
n
Microprocessor Systems
n
Computers
n
Controllers
n
Intelligent Instruments
n
Portable/Battery-Powered Equipment
n
Automotive
Typical Application Circuit
20022301
Connection Diagram
20022302
( ) are for MCP810
June 2001
M
2001 National Semiconductor Corporation
DS200223
www.national.com
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| MCP809M3-4.63 | 3-Pin Microprocessor Reset Circuits |
| MCP809M3X-2.63 | 3-Pin Microprocessor Reset Circuits |
| MCP809M3X-2.93 | 3-Pin Microprocessor Reset Circuits |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MCP809M3463 | 制造商:NATIONAL 功能描述:New |
| MCP809M3X-2.63 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3-Pin Microprocessor Reset Circuits |
| MCP809M3X-2.93 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3-Pin Microprocessor Reset Circuits |
| MCP809M3X-3.08 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3-Pin Microprocessor Reset Circuits |
| MCP809M3X-3.08/NOPB | 制造商:Texas Instruments 功能描述:Processor Supervisor 3.08V 3V/3.3V/5V 3-Pin SOT-23 T/R |
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