Equivalent & Substitute Parts for MIC706TM-TR

Part Overview

The MIC706TM-TR is a single-channel power management supervisor IC manufactured by Microchip Technology, housed in an 8-SOIC surface mount package. This device provides power-on reset and simple reset functionality with a 3.08V voltage threshold and 140ms minimum reset timeout. The MIC706TM-TR is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for new designs or production continuity.

Key Parameters

Parameter	MIC706TM-TR Value
Manufacturer	Microchip Technology
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	3.08V
Reset	Active Low
Reset Timeout	140ms Minimum
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MIC706TM-TR is determined by the following critical parameters:

Package / Case: 8-SOIC (0.154", 3.90mm Width) — mechanical and electrical pin compatibility
Voltage - Threshold: 3.08V — functional equivalence for power supply monitoring
Reset: Active Low — logic level compatibility
Reset Timeout: Minimum specification of 140ms or greater — timing margin requirement
Operating Temperature: -40°C ~ 85°C (TA) — thermal operating range
Number of Voltages Monitored: 1 — single-channel supervision requirement

Substitute parts are grouped into two categories:

Category A - Direct Microchip Equivalents: Parts maintaining identical electrical specifications and Microchip Technology manufacturing.

Category B - Cross-Manufacturer Alternatives: Parts from Analog Devices Inc./Maxim Integrated with equivalent or superior electrical performance, meeting or exceeding the MIC706TM-TR specifications within the same package footprint.

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Output Type	Reset Timeout (Min)	Operating Temp	Package	Product Status	RoHS Status
MIC706TM-TR	Microchip Technology	3.08V	Open Drain	140ms	-40°C ~ 85°C	8-SOIC	Discontinued	RoHS non-compliant
MIC706TMY-TR	Microchip Technology	3.08V	Open Drain	140ms	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
ADM706TARZ	Analog Devices Inc.	3.08V	Push-Pull, Totem Pole	160ms	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
ADM706SARZ	Analog Devices Inc.	2.93V	Push-Pull, Totem Pole	160ms	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
ADM706ARZ-REEL7	Analog Devices Inc.	4.4V	Push-Pull, Totem Pole	160ms	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
DS1706TESA+T&R	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull, Totem Pole	130ms	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
MAX706TESA+T	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull, Totem Pole	140ms	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
MAX706TCSA+T	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull, Totem Pole	140ms	0°C ~ 70°C	8-SOIC	Active	ROHS3 Compliant
MAX706TESA+	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull, Totem Pole	140ms	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
MAX706TCSA+	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull, Totem Pole	140ms	0°C ~ 70°C	8-SOIC	Active	ROHS3 Compliant
DS1706TESA+	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull, Totem Pole	130ms	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: MIC706TMY-TR

The MIC706TMY-TR is the direct successor to the MIC706TM-TR from Microchip Technology. It maintains identical electrical specifications (3.08V threshold, 140ms reset timeout, -40°C to 85°C operating range) and mechanical compatibility (8-SOIC package). The MIC706TMY-TR is currently active in production and achieves ROHS3 compliance, addressing regulatory requirements for new designs while preserving pin-for-pin compatibility.

Secondary Recommendations: ADM706TARZ and MAX706TESA+T

For applications requiring cross-manufacturer alternatives, the ADM706TARZ (Analog Devices Inc.) and MAX706TESA+T (Maxim Integrated) are functionally equivalent supervisors with identical 3.08V voltage thresholds and -40°C to 85°C operating ranges. Both feature push-pull totem pole outputs (compared to the MIC706TM-TR's open drain output) and meet or exceed the 140ms reset timeout requirement. Both are active products with ROHS3 compliance and high inventory availability.

Conditional Recommendation: DS1706TESA+T&R

The DS1706TESA+T&R (MicroMonitor™ series, Maxim Integrated) provides equivalent 3.08V threshold and -40°C to 85°C operating range with a 130ms reset timeout, which is superior to the 140ms minimum specification. This part is suitable for applications where faster reset response is beneficial. It is currently active with ROHS3 compliance.

Not Recommended: ADM706ARZ-REEL7 and MAX706TCSA+ variants

The ADM706ARZ-REEL7 features a 4.4V threshold, which exceeds the MIC706TM-TR specification and is unsuitable for 3.08V monitoring applications. The MAX706TCSA+ and MAX706TCSA+T variants operate only within 0°C to 70°C, which does not meet the -40°C lower temperature requirement of the original part.

Frequently Asked Questions (FAQ)

Q: Can I use ADM706TARZ as a direct replacement for MIC706TM-TR?

A: The ADM706TARZ is electrically compatible with identical 3.08V threshold and -40°C to 85°C operating range. However, it features a push-pull totem pole output instead of the MIC706TM-TR's open drain output. Circuit designs relying on open drain pull-up behavior must be evaluated for compatibility with push-pull output characteristics.

Q: What is the difference between MIC706TMY-TR and MIC706TM-TR?

A: The MIC706TMY-TR is the active production equivalent of the discontinued MIC706TM-TR. Both share identical electrical specifications and 8-SOIC packaging. The primary difference is product status (active vs. discontinued) and RoHS compliance (ROHS3 vs. non-compliant). No circuit redesign is required for substitution.

Q: Why do some substitute parts have different reset timeout values?

A: Reset timeout specifications represent the minimum guaranteed delay before the reset output responds to a voltage threshold violation. The MIC706TM-TR specifies 140ms minimum. Substitute parts with shorter timeouts (such as DS1706TESA+ at 130ms) provide faster response and are functionally compatible. Parts with longer timeouts remain compatible as they exceed the minimum requirement.

Q: Are all substitute parts available in the same packaging options?

A: All listed substitute parts are available in 8-SOIC surface mount packages. Packaging variants (Tape & Reel, Cut Tape, Tube) differ by supplier and distribution channel but do not affect electrical or mechanical compatibility. Verify packaging availability with your component distributor for procurement requirements.

Q: Can I use MAX706TCSA+ in an application requiring -40°C operation?

A: No. The MAX706TCSA+ and MAX706TCSA+T variants are rated for 0°C to 70°C operating temperature only. For applications requiring -40°C to 85°C operation, use MAX706TESA+, MAX706TESA+T, ADM706TARZ, or MIC706TMY-TR instead.

Q: What is the significance of RoHS3 compliance for substitute parts?

A: RoHS3 compliance indicates conformance to current environmental and hazardous substance restrictions. The original MIC706TM-TR is RoHS non-compliant. All listed substitute parts achieve ROHS3 compliance, making them suitable for new designs subject to RoHS regulations and preferred for long-term supply chain sustainability.

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