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TCM810LEB713 PDF预览

TCM810LEB713

更新时间: 2024-11-02 04:00:23
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美国微芯 - MICROCHIP 微控制器监视器
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描述
3-Pin Microcontroller Reset Monitors

TCM810LEB713 数据手册

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TCM809/TCM810  
3-Pin Microcontroller Reset Monitors  
Features  
General Description  
• Precision VDD Monitor for 2.5V, 3.0V, 3.3V, 5.0V  
Nominal System Voltage Supplies  
The TCM809 and TCM810 are cost-effective system  
supervisor circuits designed to monitor VDD in digital  
systems; providing a reset signal to the host processor,  
when necessary. No external components are  
required.  
• 140 msec Minimum RESET Time-Out Period  
• RESET Output to VDD = 1.0V (TCM809)  
• Low Supply Current, 9 µA (typ.)  
• VDD Transient Immunity  
The RESET output is typically driven active within  
65 µsec of VDD falling through the reset voltage thresh-  
old. RESET is maintained active for a minimum of  
140 msec after VDD rises above the reset threshold.  
The TCM810 has an active-high RESET output, while  
the TCM809 has an active-low RESET output. The  
output of the TCM809/TCM810 is valid down to  
VDD = 1V. Both devices are available in 3-Pin SC-70  
and SOT-23B packages.  
• Small 3-Pin SC-70 and SOT-23B Packages  
• No External Components  
• Push-Pull RESET Output  
Temperature Ranges:  
- Industrial: SC-70 (E): -40°C to +85°C  
- Extended: SOT-23, SC-70 (V): -40°C to +125°C  
The TCM809/TCM810 are optimized to reject fast  
transient glitches on the VDD line. A low supply current  
of 9 µA (typ., VDD = 3.3V) make these devices suitable  
for battery-powered applications.  
Applications  
• Computers  
• Embedded Systems  
• Battery-powered Equipment  
• Critical Microcontroller Power Supply Monitoring  
• Automotive  
Pin Configurations  
SOT-23B/SC-70  
Typical Application Circuit  
1
2
GND  
VDD  
VDD  
3
VDD  
3
VDD  
PICmicro®  
Microcontroller  
TCM809 RESET  
TCM810 (RESET)  
TCM809  
2
RESET  
RESET  
INPUT  
(Active-Low)  
Note: 3-Pin SOT-23B is equivalent to  
GND  
1
GND  
JEDEC TO-236.  
© 2005 Microchip Technology Inc.  
DS21661D-page 1  

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