MIC708M-TR Equivalent & Substitute Parts

Part Overview

The MIC708M-TR is a single-channel power supply supervisor IC manufactured by Microchip Technology, housed in an 8-SOIC surface mount package. This device provides reset and power-on reset functionality with complementary output configuration. The MIC708M-TR is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines. Substitute parts must maintain compatibility across voltage monitoring threshold, reset timing, package form factor, and operating temperature range to ensure direct replacement capability in existing designs.

Substiute Parts

MIC708M-TR

Microchip TechnologyIn Stock: 1077MIC708M-TR Datasheet

Current PartRFQ

MIC708MY-TR

Microchip TechnologyIn Stock: 4107MIC708MY-TR Datasheet

DirectRFQ

ADM708ARZ

Analog Devices Inc.In Stock: 31773ADM708ARZ Datasheet

MFR RecommendedRFQ

MAX708CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 6912MAX708CSA+ Datasheet

MFR RecommendedRFQ

MAX708ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 4470MAX708ESA+ Datasheet

MFR RecommendedRFQ

MAX708ESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 61124MAX708ESA+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

• Voltage Threshold (4.4V): All substitute parts must monitor the same 4.4V threshold to maintain circuit protection function
• Package Form Factor (8-SOIC): Physical and electrical compatibility requires identical 8-SOIC package
• Reset Timeout (140ms Minimum): Reset timing must meet or exceed the minimum specification
• Operating Temperature Range (-40°C ~ 85°C): Substitute parts must support the full temperature range or a compatible subset
• Reset Logic (Active High/Active Low): Output logic configuration must remain compatible
• Single Channel Monitoring: All substitutes must provide single-channel voltage supervision

The substitute parts are grouped into two categories based on output configuration compatibility:

Category 1 - Complementary Output (Direct Electrical Equivalent):

• MIC708MY-TR (Microchip Technology) - Same manufacturer, active product status, RoHS3 compliant

Category 2 - Push-Pull Output (Functional Equivalent with Output Topology Difference):

• ADM708ARZ (Analog Devices Inc.)
• MAX708CSA+ (Analog Devices Inc./Maxim Integrated)
• MAX708ESA+ (Analog Devices Inc./Maxim Integrated)
• MAX708ESA+T (Analog Devices Inc./Maxim Integrated)

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: MIC708MY-TR

The MIC708MY-TR is the optimal substitute for the discontinued MIC708M-TR. Both parts are manufactured by Microchip Technology and share identical electrical specifications including 4.4V threshold, 140ms reset timeout, and complementary output configuration. The MIC708MY-TR maintains full compatibility with the original design while offering active product status and RoHS3 compliance. Inventory availability is substantial at 4000 pieces.

Secondary Recommendations: MAX708ESA+T, MAX708ESA+, ADM708ARZ, MAX708CSA+

These Analog Devices and Maxim Integrated alternatives provide functional equivalence with the following considerations:

• MAX708ESA+T: Highest inventory availability (61050 pieces) with active status, RoHS3 compliance, and full temperature range support (-40°C ~ 85°C). Output topology is push-pull rather than complementary.

• MAX708ESA+: Active status, RoHS3 compliant, full temperature range (-40°C ~ 85°C), push-pull output. Inventory: 4450 pieces.

• ADM708ARZ: Active status, RoHS3 compliant, full temperature range (-40°C ~ 85°C), push-pull output. Reset timeout is 160ms minimum, exceeding the 140ms requirement. Inventory: 31679 pieces.

• MAX708CSA+: Active status, RoHS3 compliant, push-pull output. Operating temperature range is limited to 0°C ~ 70°C, which does not cover the full -40°C ~ 85°C specification of the original part. Use only in applications where the reduced temperature range is acceptable.

All secondary recommendations require circuit evaluation due to output topology change from complementary to push-pull configuration. Load impedance and signal integrity characteristics may differ.

Frequently Asked Questions (FAQ)

Q: Can MIC708MY-TR be used as a direct drop-in replacement for MIC708M-TR?

A: Yes. The MIC708MY-TR is electrically and mechanically identical to the MIC708M-TR, with the same 4.4V threshold, 140ms reset timeout, complementary output, and 8-SOIC package. The primary difference is active product status and RoHS3 compliance.

Q: What is the difference between complementary and push-pull output configurations?

A: Complementary output provides one active output and one inactive output. Push-pull output provides two active outputs that can source and sink current independently. Circuit designs must be evaluated to determine compatibility with push-pull topology.

Q: Can MAX708CSA+ be used in applications requiring -40°C operation?

A: No. The MAX708CSA+ operating temperature range is 0°C ~ 70°C, which does not include -40°C. Use MAX708ESA+, MAX708ESA+T, or ADM708ARZ for full temperature range coverage.

Q: What is the significance of the reset timeout difference between ADM708ARZ (160ms) and the original MIC708M-TR (140ms)?

A: The ADM708ARZ reset timeout of 160ms exceeds the 140ms minimum requirement, providing additional reset pulse duration. This is functionally compatible and does not create a substitution issue.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All active substitute parts listed (MIC708MY-TR, ADM708ARZ, MAX708CSA+, MAX708ESA+, MAX708ESA+T) are RoHS3 compliant. The original MIC708M-TR is RoHS non-compliant.

Q: What packaging options are available for these substitute parts?

A: MIC708MY-TR is supplied in Tape & Reel. ADM708ARZ, MAX708CSA+, and MAX708ESA+ are supplied in Tube. MAX708ESA+T is supplied in Cut Tape & Digi-Reel format. Packaging selection depends on assembly process requirements and order quantity.