MIC708N Equivalent & Substitute Parts

Part Overview

The MIC708N is a single-channel power supply supervisor IC manufactured by Microchip Technology, designed for power-on reset and simple reset applications in 8-DIP packaging. This component monitors a single voltage threshold at 4.4V and provides complementary output logic levels. The MIC708N is classified as obsolete, making identification of functionally equivalent active alternatives essential for new designs and production continuity.

Substiute Parts

MIC708N

Microchip TechnologyIn Stock: 673MIC708N Datasheet

Current PartRFQ

ADM708ANZ

Analog Devices Inc.In Stock: 4689ADM708ANZ Datasheet

MFR RecommendedRFQ

MAX708CPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3499MAX708CPA+ Datasheet

MFR RecommendedRFQ

MAX708EPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3563MAX708EPA+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC708N is determined by the following critical parameters:

• Package Compatibility: All substitutes must use 8-DIP (0.300", 7.62mm) through-hole packaging to ensure direct PCB compatibility
• Voltage Threshold: All substitutes must monitor at 4.4V threshold
• Monitoring Channels: Single-channel supervision requirement
• Reset Logic: Active High/Active Low reset capability
• Operating Temperature: Extended range (-40°C ~ 85°C) preferred for industrial applications
• Mounting Type: Through-hole configuration required

The identified substitutes—ADM708ANZ, MAX708CPA+, and MAX708EPA+—meet these core electrical and mechanical parameters. All three are active products with current manufacturing status and improved compliance certifications compared to the obsolete MIC708N.

Parameter Comparison

Engineering Selection Recommendations

MAX708EPA+ is the primary substitute for the MIC708N. This part maintains identical electrical specifications (4.4V threshold, 140ms reset timeout, -40°C ~ 85°C operating range) while offering active product status and ROHS3 compliance. The extended temperature range supports industrial applications requiring full -40°C to +85°C operation.

MAX708CPA+ serves as an alternative when operating temperature is limited to 0°C ~ 70°C. This variant provides the same 140ms reset timeout and 4.4V threshold but with a narrower temperature specification. ROHS3 compliance is maintained.

ADM708ANZ is functionally equivalent with a 160ms reset timeout (20ms longer than the original specification). This part is suitable for applications where the extended timeout does not impact system performance. Full -40°C ~ 85°C temperature range is supported, and ROHS3 compliance is provided.

All three substitutes are manufactured by Analog Devices Inc. or Maxim Integrated (now part of Analog Devices), ensuring design continuity and long-term availability compared to the obsolete MIC708N.

Frequently Asked Questions (FAQ)

Q: Can MAX708EPA+ directly replace MIC708N in existing designs?

A: Yes. Both parts share identical 8-DIP packaging, 4.4V threshold, 140ms reset timeout, and -40°C ~ 85°C operating temperature range. The primary difference is output type (complementary vs. push-pull), which must be verified against circuit requirements. Pin-level compatibility should be confirmed with datasheets before implementation.

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

A: The MIC708N provides complementary outputs (one active-high, one active-low). The substitute parts (MAX708EPA+, MAX708CPA+, ADM708ANZ) provide push-pull outputs. Circuit design must accommodate this output configuration difference. Consult device datasheets for pin-level specifications.

Q: Why does ADM708ANZ have a 160ms reset timeout instead of 140ms?

A: The ADM708ANZ is specified with a 160ms minimum reset timeout, which is 20ms longer than the MIC708N and other substitutes. This difference must be evaluated against system reset timing requirements. If the extended timeout is incompatible with the application, MAX708EPA+ or MAX708CPA+ are preferred.

Q: Is the MAX708CPA+ suitable for industrial temperature applications?

A: No. The MAX708CPA+ operates from 0°C ~ 70°C, which is narrower than the MIC708N's -40°C ~ 85°C range. For industrial or extended temperature applications, MAX708EPA+ or ADM708ANZ are required.

Q: Are all substitutes RoHS compliant?

A: Yes. All three substitute parts (MAX708EPA+, MAX708CPA+, ADM708ANZ) are ROHS3 compliant, whereas the original MIC708N is RoHS non-compliant. This improves regulatory compliance for new designs and production.

Q: What is the package compatibility between MIC708N and substitutes?

A: All parts use 8-DIP (0.300", 7.62mm) through-hole packaging. Direct PCB footprint compatibility is maintained across all four parts.