MIC708TM-TR Equivalent & Substitute Parts

Part Overview

The MIC708TM-TR is a single-channel power management supervisor IC manufactured by Microchip Technology, designed for simple reset and power-on reset applications. This device monitors a single voltage threshold at 3.08V and provides complementary output logic with active high/active low reset capability. The MIC708TM-TR is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for ongoing system support and new designs.

Key Parameters

Parameter	MIC708TM-TR
Manufacturer	Microchip Technology
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage Threshold	3.08V
Output Type	Complementary
Reset Logic	Active High/Active Low
Reset Timeout	140ms Minimum
Operating Temperature Range	-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)
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution of the MIC708TM-TR is determined by strict alignment of the following critical parameters:

Mandatory Compatibility Parameters:

Single voltage monitoring channel
3.08V threshold voltage
8-SOIC package form factor (0.154", 3.90mm width)
Surface mount technology
Active high/active low reset capability
Operating temperature range support (-40°C ~ 85°C minimum)
Reset timeout specification (140ms minimum or equivalent)

Output Type Consideration: The MIC708TM-TR provides complementary output. Substitute parts with push-pull output topology are functionally compatible in reset supervisor applications, as both output types deliver the required reset signal control to the monitored system.

Compliance Consideration: The MIC708TM-TR is RoHS non-compliant. Active substitute parts are ROHS3 compliant, representing current manufacturing standards while maintaining electrical equivalence.

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Output Type	Reset Timeout	Operating Temperature	Package	RoHS Status	Product Status	Packaging Format
MIC708TM-TR	Microchip Technology	3.08V	Complementary	140ms Min	-40°C ~ 85°C	8-SOIC	RoHS non-compliant	Discontinued	Tape & Reel
MIC708TMY-TR	Microchip Technology	3.08V	Complementary	140ms Min	-40°C ~ 85°C	8-SOIC	ROHS3 Compliant	Active	Tape & Reel
DS1708TESA+	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull	130ms Min	-40°C ~ 85°C	8-SOIC	ROHS3 Compliant	Active	Tube
DS1708TESA+T&R	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull	130ms Min	-40°C ~ 85°C	8-SOIC	ROHS3 Compliant	Active	Cut Tape & Digi-Reel
MAX708TCSA+	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull	140ms Min	0°C ~ 70°C	8-SOIC	ROHS3 Compliant	Active	Tube
MAX708TCSA+T	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull	140ms Min	0°C ~ 70°C	8-SOIC	ROHS3 Compliant	Active	Tape & Reel
MAX708TESA+	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull	140ms Min	-40°C ~ 85°C	8-SOIC	ROHS3 Compliant	Active	Unspecified
MAX708TESA+T	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull	140ms Min	-40°C ~ 85°C	8-SOIC	ROHS3 Compliant	Active	Cut Tape & Digi-Reel

Engineering Selection Recommendations

Primary Recommendation: MIC708TMY-TR

The MIC708TMY-TR is the direct Microchip Technology equivalent to the discontinued MIC708TM-TR. This part maintains identical electrical specifications including 3.08V threshold, 140ms reset timeout, and -40°C to 85°C operating range. The MIC708TMY-TR is active in production with ROHS3 compliance and available in tape and reel packaging. Selection of this part eliminates any output topology or temperature range considerations and provides the closest functional match.

Secondary Recommendations: MAX708TESA+ and MAX708TESA+T

The MAX708TESA+ and MAX708TESA+T parts from Analog Devices Inc./Maxim Integrated provide full electrical equivalence with identical 3.08V threshold, 140ms reset timeout, and -40°C to 85°C operating temperature range. These parts employ push-pull output topology, which is functionally compatible with complementary output applications in reset supervisor circuits. Both variants are active in production with ROHS3 compliance. The MAX708TESA+T variant is available in cut tape and Digi-Reel packaging.

Alternative Recommendation: DS1708TESA+ and DS1708TESA+T&R

The DS1708TESA+ and DS1708TESA+T&R parts from Analog Devices Inc./Maxim Integrated meet all critical substitution parameters with 3.08V threshold and -40°C to 85°C operating range. These parts specify a 130ms minimum reset timeout, which is within acceptable tolerance for reset supervisor applications. Push-pull output topology provides functional compatibility. Both variants are active in production with ROHS3 compliance.

Temperature-Constrained Alternative: MAX708TCSA+ and MAX708TCSA+T

The MAX708TCSA+ and MAX708TCSA+T parts are suitable only for applications with operating temperature requirements limited to 0°C to 70°C. These parts maintain 3.08V threshold and 140ms reset timeout specifications with push-pull output and ROHS3 compliance. Use of these parts requires verification that system operating temperature does not exceed the specified range.

Frequently Asked Questions (FAQ)

Q: Can I substitute the MIC708TM-TR with a part having push-pull output instead of complementary output?

A: Yes. Push-pull output topology is functionally compatible with complementary output in reset supervisor applications. Both output types deliver the required reset signal control to the monitored system. The DS1708TESA+, DS1708TESA+T&R, MAX708TCSA+, MAX708TCSA+T, MAX708TESA+, and MAX708TESA+T parts employ push-pull output and are electrically equivalent.

Q: What is the difference between the various MAX708 packaging options?

A: Packaging format differences relate to supplier delivery method only. MAX708TCSA+ is supplied in tube format. MAX708TCSA+T is supplied in tape and reel format. MAX708TESA+ packaging is unspecified. MAX708TESA+T is supplied in cut tape and Digi-Reel format. All variants maintain identical electrical specifications and 8-SOIC package form factor.

Q: Are there temperature range limitations I should consider when selecting a substitute?

A: Yes. The MIC708TM-TR operates from -40°C to 85°C. The MIC708TMY-TR, DS1708TESA+, DS1708TESA+T&R, MAX708TESA+, and MAX708TESA+T maintain this full temperature range. The MAX708TCSA+ and MAX708TCSA+T are limited to 0°C to 70°C operation and are suitable only for applications within this narrower range.

Q: What is the significance of ROHS3 compliance on the substitute parts?

A: The MIC708TM-TR is RoHS non-compliant. All active substitute parts are ROHS3 compliant, representing current manufacturing standards. ROHS3 compliance indicates conformance to the Restriction of Hazardous Substances Directive and is standard for active production components.

Q: Does the reset timeout specification difference between 140ms and 130ms affect substitution?

A: The DS1708TESA+ and DS1708TESA+T&R specify 130ms minimum reset timeout compared to 140ms for the MIC708TM-TR. This 10ms difference is within acceptable tolerance for reset supervisor applications and does not prevent functional substitution.

Q: Is the MIC708TMY-TR the recommended direct replacement?

A: Yes. The MIC708TMY-TR is the direct Microchip Technology equivalent with identical electrical specifications, same manufacturer, and active production status. This part is the primary recommendation for direct replacement of the discontinued MIC708TM-TR.

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