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MIC708

Micrel Semiconductor
Part Number MIC708
Manufacturer Micrel Semiconductor
Description (MIC705 - MIC708) Supervisory Circuits
Published Oct 9, 2006
Detailed Description www.DataSheet4U.com MIC705/6/7/8 µP Supervisory Circuits MIC705/6/7/8 µP Supervisory Circuits Description The MIC705/M...
Datasheet PDF File MIC708 PDF File

MIC708
MIC708

Overview
www.
DataSheet4U.
com MIC705/6/7/8 µP Supervisory Circuits MIC705/6/7/8 µP Supervisory Circuits Description The MIC705/MIC706/MIC707/MIC708 are inexpensive microprocessor supervisory circuits that monitor power supplies in microprocessor based systems.
The circuit functions include a watchdog timer, microprocessor reset, power failure warning and a debounced manual reset input.
The MIC705 and MIC706 offer a watchdog timer function while the MIC707 and MIC708 have an active high reset output in addition to the active low reset output.
Supply voltage monitor levels of 4.
65V and 4.
4V are available.
The MIC705/MIC707 have a nominal reset threshold level of 4.
65V while the MIC706 and MIC708 have a 4.
4V nominal reset threshold level.
When the supply voltage drops below the respective reset threshold level, RESET is asserted.
Pin Configuration Top View MR VCC GND PFI 1 2 3 4 8 WDO RESET WDI PFO MIC705 MIC706 7 6 5 N Package - 8 Lead Plastic DIP Package M Package - 8 Lead Plastic SOIC Package MR VCC GND PFI 1 2 3 4 8 RESET RESET NC PFO MIC707 MIC708 7 6 5 ee DataSh Features Debounced Manual Reset Input is DataSheet4U.
com TTL/CMOS Compatible · Typical Applications · Automotive Systems · Intelligent Instruments · Critical Microprocessor Power Monitoring · Printers · Computers · Controllers Ordering Information Part MIC70_N MIC70_M Package 8-Lead PDIP 8-Lead SOIC Temp.
Range -40°C to +85°C -40°C to +85°C · Reset Pulse Width, 200ms · Watchdog Timer, 1.
6s (MIC705/MIC706) · 4.
4V or 4.
65V Precision Voltage Monitor · Early Power Fail Warning or Low Battery Detect Typical Operating Circuit +5V (Regulated) Manual Reset MR VCC VCC RESET DC Voltage (Unregulated) MIC705 MIC706 RESET µP I/O Line NMI Interrupt WDI WDO PFI PFO DataSheet4U.
com DataSheet 4 U .
com 1 www.
DataSheet4U.
com MIC705/6/7/8 µP Supervisory Circuits Absolute Maximum Ratings Terminal Voltage VCC .
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-0.
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