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DS1707

Maxim Integrated
Part Number DS1707
Manufacturer Maxim Integrated
Description 3.3/5.0-Volt MicroMonitor
Published Mar 27, 2020
Detailed Description www.maxim-ic.com DS1707/DS1708 3.3 and 5.0-Volt MicroMonitor FEATURES § Holds microprocessor in check during power tra...
Datasheet PDF File DS1707 PDF File

DS1707
DS1707

Overview
www.
maxim-ic.
com DS1707/DS1708 3.
3 and 5.
0-Volt MicroMonitor FEATURES § Holds microprocessor in check during power transients § Automatically restarts microprocessor after power failure § Monitors pushbutton for external override § Accurate 5%, 10% or 20% resets for 3.
3V systems and 5% or 10% resets for 5.
0V systems § Eliminates the need for discrete components § 20% tolerance compatible with 3.
0V systems § Pin compatible with the MAXIM MAX707/MAX708 in 8-pin DIP, 8-pin SOIC packages § 8-pin DIP, 8-pin and m-SOP SOIC and 8-pin m-SOP packages available § Industrial temperature range -40°C to +85°C PIN ASSIGNMENT PBRST 1 8 RST VCC GND 2 3 7 RST 6 NC IN 4 5 NMI 8-Pin DIP (300-mil) PBRST 18 RST VCC GND 27 36 RST NC IN 45 NMI 8-Pin SOIC (150-mil) RST RST PBRST VCC 1 2 3 4 8 NC 7 NMI 6 IN 5 GND 8-Pin m-SOP (118-mil) See Mech.
Drawings Section on website DS1707 and DS1708_R/S/T PIN DESCRIPTION PBRST VCC GND IN - Pushbutton Reset Input - Power Supply - Ground - Input NMI - Non-maskable Interrupt NC - No Connect RST - Active Low Reset Output RST - Active High Reset Output DESCRIPTION The DS1707/DS1708 3.
3- or 5.
0-Volt MicroMonitor monitors three vital conditions for a microprocessor: power supply, voltage sense, and external override.
A precision temperature-compensated reference and comparator circuit monitor the status of VCC at the device and at an upstream point for maximum protection.
When the sense input detects an out-of-tolerance condition a non-maskable interrupt is generated.
As the voltage at the device degrades an internal power fail signal is generated which forces the reset to an active state.
When VCC returns to an in-tolerance condition, the reset signal is kept in the active state for a minimum of 130 ms to allow the power supply and processor to stabilize.
1 of 10 041305 DS1707/DS1708 The third function the DS1707/DS1708 performs is pushbutton reset control.
The DS1707/DS1708 debounces the pushbutton input and guarantees ...


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