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FM810 PDF预览

FM810

更新时间: 2024-01-13 14:00:56
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 监控
页数 文件大小 规格书
9页 461K
描述
3-Pin UC Supervisor Circuits

FM810 数据手册

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August 2005  
FM809/810  
3-Pin µC Supervisor Circuits  
General Description  
The FM809/810 are supervisor circuits that monitor power  
supply or other system voltages and issue reset pulse whenever  
the voltage being monitored is out of tolerance. Once asserted,  
the reset pulse is guaranteed to be valid for a minimum of  
140ms (256ms typical). FM809xx offers active low push-pull  
type of reset while FM810xx offers active high push-pull type.  
Several threshold voltages are offered to accommodate 5.0V,  
3.3V, 3.0V and 2.7V system voltages.  
140ms power-on RESET delay (minimum)  
RESET operation guaranteed to 1.0V  
Supply current only 2µA  
No external components  
Operating Range  
– -40°C to +105°C (SOT23)  
– -40°C to +85°C (SC70)  
SOT23-3 and SC70-3 packages  
The low supply current (typically 2 µA)recommends FM809/810  
devices for portable designs or wherever power saving is  
primary.  
Applications  
Microcontrollers and Microprocessors  
These devices are offered in space saving 3-pin SOT23 and  
SC70 packages.  
Appliances  
Power-Supply Monitoring  
Portable Equipment  
Features  
Automotive Systems  
V voltages of 4.63V, 4.38V, 4.00V, 3.08V, 2.93V and 2.63V  
TH  
RESET (FM809) or RESET (FM810) output  
Typical Operating Circuit  
VCC  
VCC  
FM809  
µC  
RESET  
RESET  
I/P  
GND  
GND  
Connection Diagram  
GND  
1
2
3
V
CC  
RESET (809) or  
RESET (810)  
FM809/810  
SOT23-3 & SC70-3Packages  
©2005 Fairchild Semiconductor Corporation  
FM809/810 Rev. G  
1
www.fairchildsemi.com  

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