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MIC706M Equivalent & Substitute Parts
Part Overview
The MIC706M is a single-channel power management supervisor IC manufactured by Microchip Technology, designed for power-on reset and system supervision applications. This 8-SOIC surface-mount device monitors a single voltage threshold at 4.4V with an active-low reset output and 140ms minimum reset timeout. The MIC706M is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. Direct alternatives from Microchip and cross-manufacturer equivalents from Analog Devices Inc./Maxim Integrated are available with matching or superior electrical characteristics.
Substiute Parts
Key Parameters
| Parameter | MIC706M Specification |
|---|---|
| Manufacturer | Microchip Technology |
| Category | Power Management (PMIC) |
| Type | Simple Reset/Power-On Reset |
| Number of Voltages Monitored | 1 |
| Voltage - Threshold | 4.4V |
| Reset | Active Low |
| Reset Timeout | 140ms Minimum |
| Operating Temperature Range | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| RoHS Status | RoHS non-compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution eligibility for the MIC706M is determined by the following critical parameters:
Primary Matching Criteria:
- Voltage threshold: 4.4V
- Reset type: Active Low
- Package: 8-SOIC (0.154", 3.90mm Width)
- Mounting type: Surface Mount
- Number of voltages monitored: 1 channel
Secondary Compatibility Factors:
- Reset timeout: 140ms minimum or greater
- Operating temperature range: -40°C ~ 85°C or wider
- Output configuration: Open-drain or push-pull/totem-pole (both acceptable for active-low reset applications)
All substitute parts listed maintain the core electrical specifications required for direct replacement in power-on reset and system supervision circuits. Packaging variants (tube, cut tape, reel) do not affect electrical compatibility, only procurement and handling methods.
Parameter Comparison
| Part Number | Manufacturer | Voltage Threshold | Reset Type | Reset Timeout (Min) | Operating Temp Range | Output Type | Package | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| MIC706M | Microchip Technology | 4.4V | Active Low | 140ms | -40°C ~ 85°C | Open-Drain | 8-SOIC | Discontinued | RoHS non-compliant |
| MIC706MY | Microchip Technology | 4.4V | Active Low | 140ms | -40°C ~ 85°C | Open-Drain | 8-SOIC | Active | ROHS3 Compliant |
| ADM706ARZ | Analog Devices Inc. | 4.4V | Active Low | 160ms | -40°C ~ 85°C | Push-Pull, Totem Pole | 8-SOIC | Active | ROHS3 Compliant |
| ADM706ARZ-REEL | Analog Devices Inc. | 4.4V | Active Low | 160ms | -40°C ~ 85°C | Push-Pull, Totem Pole | 8-SOIC | Active | ROHS3 Compliant |
| ADM706ARZ-REEL7 | Analog Devices Inc. | 4.4V | Active Low | 160ms | -40°C ~ 85°C | Push-Pull, Totem Pole | 8-SOIC | Active | ROHS3 Compliant |
| DS1706ESA+ | Analog Devices Inc./Maxim Integrated | 4.4V | Active Low | 130ms | -40°C ~ 85°C | Push-Pull, Totem Pole | 8-SOIC | Active | ROHS3 Compliant |
| MAX706CSA+ | Analog Devices Inc./Maxim Integrated | 4.4V | Active Low | 140ms | 0°C ~ 70°C | Push-Pull, Totem Pole | 8-SOIC | Active | ROHS3 Compliant |
| MAX706CSA+T | Analog Devices Inc./Maxim Integrated | 4.4V | Active Low | 140ms | 0°C ~ 70°C | Push-Pull, Totem Pole | 8-SOIC | Active | ROHS3 Compliant |
| MAX706ESA+ | Analog Devices Inc./Maxim Integrated | 4.4V | Active Low | 140ms | -40°C ~ 85°C | Push-Pull, Totem Pole | 8-SOIC | Active | ROHS3 Compliant |
| MAX706ESA+T | Analog Devices Inc./Maxim Integrated | 4.4V | Active Low | 140ms | -40°C ~ 85°C | Push-Pull, Totem Pole | 8-SOIC | Active | ROHS3 Compliant |
| MAX706TCSA+ | Analog Devices Inc./Maxim Integrated | 3.08V | Active Low | 140ms | 0°C ~ 70°C | Push-Pull, Totem Pole | 8-SOIC | Active | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Recommendation: MIC706MY
MIC706MY is the direct Microchip equivalent to MIC706M, maintaining identical electrical specifications including 4.4V threshold, 140ms reset timeout, and -40°C ~ 85°C operating range. This part is currently active in production and ROHS3 compliant, addressing the compliance gap of the discontinued MIC706M. Packaging is available in tube format. This is the preferred choice for applications requiring minimal design validation.
Secondary Recommendation: MAX706ESA+ or MAX706ESA+T
MAX706ESA+ and MAX706ESA+T from Analog Devices Inc./Maxim Integrated provide full electrical compatibility with identical 4.4V threshold, 140ms reset timeout, and -40°C ~ 85°C operating range. These parts feature push-pull totem-pole output instead of open-drain, which is functionally compatible in active-low reset circuits. Both are ROHS3 compliant and widely available. MAX706ESA+T is supplied on cut tape and reel for high-volume applications.
Alternative for Extended Temperature: ADM706ARZ Series
ADM706ARZ, ADM706ARZ-REEL, and ADM706ARZ-REEL7 maintain 4.4V threshold and -40°C ~ 85°C operating range with 160ms reset timeout (exceeds MIC706M specification). These parts offer superior reset timing margin and are available in multiple packaging formats. All are ROHS3 compliant and currently active.
Temperature-Constrained Applications: MAX706CSA+ or MAX706CSA+T
MAX706CSA+ and MAX706CSA+T are suitable only for applications with 0°C ~ 70°C operating requirements. These parts match the 4.4V threshold and 140ms reset timeout but have narrower temperature range than MIC706M. Use only when application temperature limits are confirmed.
Not Recommended: MAX706TCSA+
MAX706TCSA+ has a different voltage threshold (3.08V) and narrower operating temperature range (0°C ~ 70°C), making it unsuitable as a direct substitute for MIC706M applications.
Frequently Asked Questions (FAQ)
Q: Can I use MAX706ESA+ as a direct replacement for MIC706M?
A: Yes. Both parts share the same 4.4V voltage threshold, 140ms minimum reset timeout, and -40°C ~ 85°C operating temperature range. The primary difference is output type: MAX706ESA+ uses push-pull totem-pole output while MIC706M uses open-drain. Both output types are functionally compatible in active-low reset circuits. MAX706ESA+ is ROHS3 compliant, addressing the compliance limitation of the discontinued MIC706M.
Q: What is the difference between ADM706ARZ, ADM706ARZ-REEL, and ADM706ARZ-REEL7?
A: These three part numbers are electrically identical with 4.4V threshold, 160ms reset timeout, and -40°C ~ 85°C operating range. The differences are packaging and delivery format: ADM706ARZ is supplied in tube packaging, ADM706ARZ-REEL and ADM706ARZ-REEL7 are supplied on cut tape with Digi-Reel. Select based on procurement volume and handling requirements.
Q: Why do some substitutes have different reset timeout values?
A: Reset timeout specifications vary by manufacturer design. MIC706M specifies 140ms minimum, while ADM706ARZ series specifies 160ms minimum. A longer reset timeout is functionally compatible and provides additional timing margin. Shorter timeouts would not be acceptable substitutes.
Q: Can I use MAX706CSA+ in an application designed for MIC706M?
A: Only if your application operates within 0°C ~ 70°C. MAX706CSA+ has a narrower operating temperature range than MIC706M (-40°C ~ 85°C). The voltage threshold (4.4V) and reset timeout (140ms) are identical. Confirm your application temperature limits before selecting this part.
Q: Is the output type difference between open-drain and push-pull important?
A: For active-low reset applications, both output types are functionally compatible. Push-pull totem-pole output (used in MAX706 and ADM706 series) provides stronger drive capability compared to open-drain. If your circuit design includes pull-up resistors for open-drain outputs, push-pull substitutes will work without modification.
Q: Are all substitute parts ROHS3 compliant?
A: All listed substitute parts except MIC706M are ROHS3 compliant. MIC706M is RoHS non-compliant. If RoHS compliance is required for your application, select from MIC706MY, ADM706ARZ series, DS1706ESA+, or MAX706 series parts.
Q: Which substitute has the best availability?
A: MAX706ESA+T and ADM706ARZ-REEL7 have the highest inventory levels (30,300 and 27,036 units respectively) and are supplied on cut tape and reel for high-volume production. These are optimal choices for applications requiring large quantities.
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