MIC708TN Equivalent & Substitute Parts

Part Overview

The MIC708TN is a supervisor integrated circuit from Microchip Technology designed for power management applications. It functions as a simple reset/power-on reset device with complementary output configuration, monitoring a single voltage threshold at 3.08V. The device is classified as obsolete, making equivalent substitute parts necessary for new designs, maintenance applications, or when original stock becomes unavailable. The MIC708TN operates across an industrial temperature range of -40°C to 85°C and is packaged in an 8-DIP through-hole format.

Substiute Parts

MIC708TN

Microchip TechnologyIn Stock: 810MIC708TN Datasheet

Current PartRFQ

MAX708TCPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 935MAX708TCPA+ Datasheet

MFR RecommendedRFQ

MAX708TEPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1187MAX708TEPA+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MIC708TN are qualified based on the following critical parameters that determine functional and mechanical compatibility:

• Single voltage monitoring channel with 3.08V threshold
• 8-DIP through-hole package format (0.300", 7.62mm)
• Simple reset/power-on reset functionality
• Active High/Active Low reset logic
• 140ms minimum reset timeout
• Complementary or push-pull output capability

The substitute parts identified (MAX708TCPA+ and MAX708TEPA+) maintain these core electrical specifications. Both devices are manufactured by Analog Devices Inc./Maxim Integrated and share the same base product number (MAX708) with identical threshold voltage, reset timeout, and package specifications. The primary differences between substitutes relate to product status and output configuration details, which are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

MAX708TCPA+ is the primary substitute for new designs and applications requiring active product support. This device maintains all critical electrical parameters (voltage threshold, reset timeout, reset logic) and package specifications while offering ROHS3 compliance and active product status from Analog Devices Inc./Maxim Integrated. The operating temperature range is restricted to 0°C ~ 70°C, which is suitable for commercial and industrial applications within this thermal envelope.

MAX708TEPA+ serves as an alternative substitute when the full industrial temperature range (-40°C ~ 85°C) is required. This device matches the MIC708TN's complete operating temperature specification and provides ROHS3 compliance. However, MAX708TEPA+ carries obsolete product status, limiting its suitability for long-term production applications.

Both substitute parts employ push-pull output configuration compared to the MIC708TN's complementary output. This difference requires circuit-level evaluation to confirm compatibility with existing reset signal conditioning and load requirements in the target application.

Frequently Asked Questions (FAQ)

Q: Can MAX708TCPA+ or MAX708TEPA+ be used as direct pin-for-pin replacements for MIC708TN?

A: Both MAX708 variants share the identical 8-DIP package footprint and pinout with the MIC708TN. However, the output configuration differs (push-pull versus complementary), requiring verification that the receiving circuit can accommodate the different output drive characteristics.

Q: What is the significance of the operating temperature range difference between MAX708TCPA+ and MAX708TEPA+?

A: MAX708TCPA+ operates from 0°C to 70°C, suitable for commercial and standard industrial environments. MAX708TEPA+ extends operation to -40°C to 85°C, matching the MIC708TN's full industrial temperature range. Selection depends on the target application's thermal requirements.

Q: Why is RoHS compliance important for this substitution?

A: The MIC708TN is RoHS non-compliant, while both MAX708 variants are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the MAX708 substitutes provide regulatory alignment. For legacy systems without RoHS mandates, this difference may not affect selection.

Q: How do the output configurations (complementary versus push-pull) affect circuit design?

A: Complementary output provides one active-high and one active-low signal from a single monitoring function. Push-pull output provides two independent push-pull drivers. The receiving circuit must be designed to accept the specific output configuration. Functional compatibility requires that the reset signal conditioning and load impedance are appropriate for the substitute's output type.

Q: Is MAX708TEPA+ recommended despite its obsolete status?

A: MAX708TEPA+ is suitable only when the full -40°C to 85°C temperature range is mandatory and MAX708TCPA+'s 0°C to 70°C range is insufficient. For new designs, MAX708TCPA+ is preferred due to its active product status and ongoing manufacturer support.