MIC706SM Equivalent & Substitute Parts

Part Overview

The MIC706SM is a single-channel power management supervisor IC manufactured by Microchip Technology, housed in an 8-SOIC surface mount package. This device provides reset and power-on reset functionality with a 2.93V threshold and 140ms minimum reset timeout, operating across the industrial temperature range of -40°C to 85°C. The MIC706SM is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	MIC706SM
Manufacturer	Microchip Technology
Category	Power Management (PMIC)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	2.93V
Reset	Active Low
Reset Timeout	140ms Minimum
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MIC706SM is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

Package / Case: 8-SOIC (0.154", 3.90mm Width)
Voltage - Threshold: 2.93V
Reset: Active Low
Reset Timeout: 140ms Minimum
Operating Temperature: -40°C ~ 85°C (TA)
Number of Voltages Monitored: 1
Type: Simple Reset/Power-On Reset

Substitute parts are grouped into two categories based on output configuration:

Group 1 - Open Drain Output (Direct Electrical Equivalent): Parts with unspecified or open drain output matching all critical parameters.

Group 2 - Push-Pull/Totem Pole Output (Functional Equivalent with Enhanced Output Capability): Parts with push-pull or totem pole output configuration. These provide enhanced output drive capability while maintaining identical threshold, reset timing, and temperature specifications. Output configuration differences require circuit-level evaluation but do not affect core supervisor functionality.

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Output Type	Reset Timeout	Operating Temp	Package	Product Status	RoHS Status
MIC706SM	Microchip Technology	2.93V	Not Specified	140ms Min	-40°C ~ 85°C	8-SOIC	Discontinued	Non-compliant
MIC706SMY	Microchip Technology	2.93V	Not Specified	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
STM706SM6F	STMicroelectronics	2.93V	Push-Pull, Totem Pole	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
ADM706SARZ	Analog Devices Inc.	2.93V	Push-Pull, Totem Pole	160ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
DS1706SESA+	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	130ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
DS1706SESA+T&R	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	130ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
MAX706SCSA+	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	140ms Min	0°C ~ 70°C	8-SOIC	Active	ROHS3 Compliant
MAX706SCSA+T	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	140ms Min	0°C ~ 70°C	8-SOIC	Active	ROHS3 Compliant
MAX706SESA+	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
MAX706SESA+T	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
ADM706ARZ-REEL7	Analog Devices Inc.	4.4V	Push-Pull, Totem Pole	160ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation - Direct Replacement: MIC706SMY is the optimal substitute for MIC706SM. Both are manufactured by Microchip Technology with identical electrical specifications (2.93V threshold, 140ms reset timeout, -40°C to 85°C operating range). MIC706SMY is currently active in production and ROHS3 compliant, addressing the discontinuation status of the original part while maintaining full functional compatibility.

Secondary Recommendations - Functionally Equivalent with Enhanced Output: STM706SM6F, MAX706SESA+, and MAX706SESA+T provide identical threshold voltage, reset timeout, and operating temperature specifications with push-pull output configuration. These parts are manufactured by established suppliers (STMicroelectronics and Maxim Integrated) and carry ROHS3 compliance. The push-pull output provides enhanced drive capability compared to the original open-drain configuration, requiring circuit-level verification but offering improved noise immunity and faster edge rates.

Conditional Substitutes - Parameter Deviations: DS1706SESA+ and DS1706SESA+T&R feature a shorter reset timeout (130ms minimum versus 140ms minimum). These parts are suitable only when the application can tolerate faster reset assertion timing.

MAX706SCSA+ and MAX706SCSA+T operate within a narrower temperature range (0°C to 70°C versus -40°C to 85°C). These parts are suitable only for applications not requiring full industrial temperature coverage.

ADM706ARZ-REEL7 features a higher voltage threshold (4.4V versus 2.93V) and is not suitable as a direct substitute.

Compliance Consideration: All recommended substitutes carry ROHS3 compliance, addressing potential regulatory requirements not met by the original MIC706SM.

Frequently Asked Questions (FAQ)

Q: Can MIC706SMY directly replace MIC706SM without circuit modification? A: Yes. MIC706SMY is manufactured by the same supplier (Microchip Technology) with identical electrical specifications. No circuit modification is required. The primary difference is packaging format (tube versus bulk) and ROHS3 compliance status.

Q: What is the difference between open-drain and push-pull output configurations? A: Open-drain output requires an external pull-up resistor to establish a high logic level. Push-pull (totem pole) output actively drives both high and low logic levels without external pull-up components. Push-pull output provides faster edge rates and improved noise immunity. Circuit-level evaluation is required to confirm compatibility with existing pull-up resistor networks.

Q: Are DS1706SESA+ and DS1706SESA+T&R suitable replacements? A: These parts are suitable only if the application can tolerate a 130ms minimum reset timeout instead of 140ms. The faster reset assertion may affect system initialization timing in designs that depend on the original 140ms specification.

Q: Can MAX706SCSA+ or MAX706SCSA+T be used in industrial temperature applications? A: No. These parts operate only within 0°C to 70°C. Applications requiring -40°C to 85°C operation must use MIC706SMY, STM706SM6F, MAX706SESA+, MAX706SESA+T, or DS1706 series parts.

Q: What is the significance of packaging designations (+T, +T&R)? A: +T indicates cut tape and digi-reel packaging suitable for automated assembly. +T&R indicates tape and reel packaging. Bulk packaging (no suffix) is used for manual handling. All three packaging formats contain identical die and electrical specifications; selection depends on assembly process requirements.

Q: Is ADM706ARZ-REEL7 compatible with MIC706SM? A: No. ADM706ARZ-REEL7 features a 4.4V threshold voltage compared to 2.93V for MIC706SM. This voltage difference makes it unsuitable for applications designed around the original 2.93V threshold specification.

Q: What inventory considerations apply to these substitutes? A: MIC706SMY (1560 pcs), MAX706SESA+T (106550 pcs), and STM706SM6F (20400 pcs) offer the highest inventory availability. DS1706SESA+ and DS1706SESA+T&R offer lower availability (1320 and 2900 pcs respectively). Procurement planning should account for these inventory levels.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message