SP706RCU-L Equivalent & Substitute Parts

Part Overview

The SP706RCU-L is a single-channel power management supervisor IC manufactured by MaxLinear, Inc., designed for microprocessor reset and power-on reset applications. This device monitors a single voltage threshold at 2.63V and provides active-low reset output with a 140ms minimum timeout. The SP706RCU-L is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and component procurement.

Key Parameters

Parameter	SP706RCU-L
Manufacturer	MaxLinear, Inc.
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage Threshold	2.63V
Reset Output	Active Low
Reset Timeout	140ms Minimum
Operating Temperature	0°C ~ 70°C
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SP706RCU-L are qualified based on the following critical parameters:

Single voltage monitoring channel with 2.63V threshold
Active-low reset output configuration
8-pin TSSOP/MSOP package footprint compatibility
Surface mount technology
RoHS compliance status
Moisture sensitivity level MSL 1

The substitute parts are grouped into two categories based on operating temperature range:

Category A: Industrial Temperature Range (0°C ~ 70°C)

MAX706RCUA+
MAX706RCUA+T

Category B: Extended Temperature Range (-40°C ~ 85°C)

DS1706REUA+
MAX706AREUA+
MAX706REUA+
MAX706REUA+T

All substitute parts maintain identical voltage threshold, reset polarity, and package dimensions as the original SP706RCU-L.

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Reset Output	Reset Timeout	Operating Temperature	Package	Product Status	RoHS Status
SP706RCU-L	MaxLinear, Inc.	2.63V	Active Low	140ms Min	0°C ~ 70°C	8-MSOP	Discontinued	RoHS Compliant
MAX706RCUA+	Analog Devices Inc./Maxim Integrated	2.63V	Push-Pull, Totem Pole	140ms Min	0°C ~ 70°C	8-uMAX/uSOP	Active	ROHS3 Compliant
MAX706RCUA+T	Analog Devices Inc./Maxim Integrated	2.63V	Push-Pull, Totem Pole	140ms Min	0°C ~ 70°C	8-uMAX/uSOP	Active	ROHS3 Compliant
DS1706REUA+	Analog Devices Inc./Maxim Integrated	2.63V	Push-Pull, Totem Pole	130ms Min	-40°C ~ 85°C	8-uMAX/uSOP	Active	ROHS3 Compliant
MAX706AREUA+	Analog Devices Inc./Maxim Integrated	2.63V	Push-Pull, Totem Pole	140ms Min	-40°C ~ 85°C	8-uMAX/uSOP	Active	ROHS3 Compliant
MAX706REUA+	Analog Devices Inc./Maxim Integrated	2.63V	Push-Pull, Totem Pole	140ms Min	-40°C ~ 85°C	8-uMAX/uSOP	Active	ROHS3 Compliant
MAX706REUA+T	Analog Devices Inc./Maxim Integrated	2.63V	Push-Pull, Totem Pole	140ms Min	-40°C ~ 85°C	8-uMAX/uSOP	Active	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts listed are manufactured by Analog Devices Inc./Maxim Integrated and maintain active product status, ensuring long-term availability and supply chain stability. Each substitute meets or exceeds the RoHS compliance requirements of the original SP706RCU-L.

For applications requiring the original 0°C ~ 70°C operating temperature range, select MAX706RCUA+ or MAX706RCUA+T. The MAX706RCUA+T variant is supplied in Tape & Reel packaging, suitable for high-volume automated assembly.

For applications requiring extended operating temperature coverage from -40°C ~ 85°C, select from DS1706REUA+, MAX706AREUA+, MAX706REUA+, or MAX706REUA+T. These parts provide broader environmental operating conditions while maintaining identical voltage threshold and reset timeout specifications.

All substitute parts are supplied in 8-pin uMAX/uSOP packages, which are mechanically and electrically compatible with the original 8-MSOP footprint.

Frequently Asked Questions (FAQ)

Q: Are all substitute parts pin-compatible with the SP706RCU-L?

A: Yes. All substitute parts use 8-pin TSSOP/MSOP package configurations with identical pin assignments for voltage monitoring, reset output, and ground connections.

Q: What is the difference between MAX706RCUA+ and MAX706RCUA+T?

A: Both parts are electrically identical with matching voltage threshold (2.63V), reset timeout (140ms minimum), and operating temperature range (0°C ~ 70°C). The primary difference is packaging: MAX706RCUA+ is supplied in Tube packaging, while MAX706RCUA+T is supplied in Tape & Reel format for automated assembly processes.

Q: Can I use DS1706REUA+ as a direct replacement for SP706RCU-L?

A: DS1706REUA+ is functionally equivalent with identical voltage threshold and reset polarity. The reset timeout is 130ms minimum versus 140ms minimum for the original part. The extended operating temperature range (-40°C ~ 85°C) provides broader environmental coverage than the original specification (0°C ~ 70°C).

Q: What is the difference between industrial temperature (0°C ~ 70°C) and extended temperature (-40°C ~ 85°C) variants?

A: Extended temperature variants are qualified for operation across a wider environmental range, including low-temperature storage and high-temperature industrial applications. Select based on your application's actual operating and storage temperature requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts carry ROHS3 compliance certification, meeting current environmental and hazardous substance restrictions.

Q: What packaging options are available for the MAX706 series substitutes?

A: MAX706 series parts are available in Tube packaging (standard for low-to-medium volume) and Tape & Reel packaging (optimized for high-volume automated assembly). Select based on your production volume and assembly process requirements.

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