Datasheet Microchip MIC708 — Datenblatt

Hersteller	Microchip
Serie	MIC708

Die MIC705, MIC706, MIC707 und MIC708 sind teure Mikroprozessor-Überwachungsschaltungen, die Stromversorgungen in mikroprozessorbasierten Systemen überwachen

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MIC706P/R/S/T, MIC708R/S/T
ВµP Supervisory Circuit General Description Features The MIC706 and MIC708 are inexpensive microprocessor
supervisory circuits that monitor power supplies in 3.0V
and 3.3V microprocessor-based systems. The circuit
functions include a watchdog timer, microprocessor reset,
power-failure warning, and a debounced manual reset
input. Maximum supply current: 30ВµA Debounced manual reset input is TTL/CMOS
compatible Reset pulse width: 200ms Watchdog timer: 1.6s (MIC706) Precision supply voltage monitor Easy power-fail warning or low-battery detect The MIC706 offers a watchdog timer function, while the
MIC708 has an active-high reset output in addition to the
active-low reset output.
The R, S, and T versions are similar in all respects except
for supply voltage reset threshold levels. The threshold
levels are 2.63, 2.93, and 3.08V, respectively. When the
supply voltage drops below the reset threshold level,
/RESET (and RESET for the MIC708) is asserted.
The MIC706P is identical to the MIC706R, except that the
Reset output is asserted high. Applications Laptop and desktop computers
Intelligent systems
Critical microprocessor power monitoring
Printers
Controllers Datasheets and support documentation are available on
MicrelвЂ™s web site at: www.micrel.com. Typical Application Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com May 28, 2014 Revision 2.0 Micrel, Inc. MIC706P/R/S/, MIC708R/S/T Ordering Information
Part Number Threshold (V) MIC706PMY 2.63 MIC706RMY 2.63 MIC706SMY /RESET RESET WDI Junction Temperature Range Package в€љ в€љ вЂ“40В°C to +85В°C 8-Pin SOIC в€љ в€љ вЂ“40В°C to +85В°C 8-Pin SOIC 2.93 в€љ в€љ вЂ“40В°C to +85В°C 8-Pin SOIC MIC706TMY 3.08 в€љ в€љ вЂ“40В°C to +85В°C 8-Pin SOIC MIC708RMY 2.63 в€љ в€љ вЂ“40В°C to +85В°C 8-Pin SOIC MIC708SMY 2.93 в€љ в€љ вЂ“40В°C to +85В°C 8-Pin SOIC MIC708TMY 3.08 в€љ в€љ вЂ“40В°C to +85В°C 8-Pin SOIC Pin Configuration MIC706 …

Status

	MIC708MY	MIC708MY-TR	MIC708RMY	MIC708RMY-TR	MIC708SMY	MIC708SMY-TR	MIC708TMY	MIC708TMY-TR
Lifecycle Status	Production (Appropriate for new designs but newer alternatives may exist)	Production (Appropriate for new designs but newer alternatives may exist)	Production (Appropriate for new designs but newer alternatives may exist)	Production (Appropriate for new designs but newer alternatives may exist)	Production (Appropriate for new designs but newer alternatives may exist)	Production (Appropriate for new designs but newer alternatives may exist)	Production (Appropriate for new designs but newer alternatives may exist)	Production (Appropriate for new designs but newer alternatives may exist)

Verpackung

	MIC708MY	MIC708MY-TR	MIC708RMY	MIC708RMY-TR	MIC708SMY	MIC708SMY-TR	MIC708TMY	MIC708TMY-TR
N	1	2	3	4	5	6	7	8
Package	SOIC	SOIC	SOIC	SOIC	SOIC	SOIC	SOIC	SOIC
Pins	8	8	8	8	8	8	8	8

Parameter

Parameters / Models	MIC708MY	MIC708MY-TR	MIC708RMY	MIC708RMY-TR	MIC708SMY	MIC708SMY-TR	MIC708TMY	MIC708TMY-TR
Manual Reset	No	No	No	No	No	No	No	No
Nominal Reset Voltage, V	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4
Operating Temp. Range, °C	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Operating Temperature Range, °C	-40 to +85	-40 to +85	-40 to +85	-40 to +85	-40 to +85	-40 to +85	-40 to +85	-40 to +85
Output	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Power Fail	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Product Type	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor
Reset Type	Active Low/High or High/Low	Active Low/High or High/Low	Active Low/High or High/Low	Active Low/High or High/Low	Active Low/High or High/Low	Active Low/High or High/Low	Active Low/High or High/Low	Active Low/High or High/Low
Typical Reset Pulse Width, ms	140	140	140	140	140	140	140	140
Typical Supply Current, µA	30	30	30	30	30	30	30	30
VCC Range, V	1.5 - 5.5	1.5 - 5.5	1.5 - 5.5	1.5 - 5.5	1.5 - 5.5	1.5 - 5.5	1.5 - 5.5	1.5 - 5.5
Watchdog Timer	No	No	No	No	No	No	No	No

Öko-Plan

	MIC708MY	MIC708MY-TR	MIC708RMY	MIC708RMY-TR	MIC708SMY	MIC708SMY-TR	MIC708TMY	MIC708TMY-TR
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Andere Optionen

MIC705 MIC706 MIC707

Modellreihe

Serie: MIC708 (8)

MIC708MY MIC708MY-TR MIC708RMY MIC708RMY-TR MIC708SMY MIC708SMY-TR MIC708TMY MIC708TMY-TR

Herstellerklassifikation

Power Management > Voltage Detectors