SP706REU-L/TR Equivalent & Substitute Parts

Part Overview

The SP706REU-L/TR is a single-channel power management supervisor IC manufactured by MaxLinear, Inc., designed for power-on reset and simple reset applications. This part operates with a 2.63V voltage threshold, active-low reset output, and 140ms minimum reset timeout across an operating temperature range of -40°C to 85°C. The SP706REU-L/TR is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Substitute parts maintain core functional parameters while offering active product status and improved availability.

Substiute Parts

SP706REU-L/TR

MaxLinear, Inc.In Stock: 10453SP706REU-L/TR Datasheet

Current PartRFQ

SP706REN-L/TR

MaxLinear, Inc.In Stock: 20306SP706REN-L/TR Datasheet

MFR RecommendedRFQ

DS1706REUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1374DS1706REUA+ Datasheet

MFR RecommendedRFQ

MAX706AREUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 662MAX706AREUA+ Datasheet

MFR RecommendedRFQ

MAX706RCUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2118MAX706RCUA+ Datasheet

MFR RecommendedRFQ

MAX706RCUA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3641MAX706RCUA+T Datasheet

MFR RecommendedRFQ

MAX706REUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1043MAX706REUA+ Datasheet

MFR RecommendedRFQ

MAX706REUA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3720MAX706REUA+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SP706REU-L/TR are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Voltage threshold: 2.63V (exact match required)
• Reset type: Active Low (exact match required)
• Reset timeout: 140ms minimum (exact match or greater acceptable)
• Operating temperature range: -40°C to 85°C (full range preferred; narrower ranges noted)
• Number of voltages monitored: 1 channel (exact match required)
• Mounting type: Surface Mount (exact match required)
• Package type: 8-pin MSOP/TSSOP family (mechanical compatibility)

Substitute parts are grouped into two categories:

Category A - Direct Package Equivalents (8-MSOP/8-TSSOP): SP706REN-L/TR, MAX706AREUA+, MAX706RCUA+, MAX706RCUA+T, MAX706REUA+, MAX706REUA+T

Category B - Alternative Package (8-uMAX/uSOP): DS1706REUA+

All substitute parts maintain the 2.63V threshold, active-low reset, and 140ms minimum reset timeout. Category B parts feature push-pull/totem-pole output architecture, which differs from the main part's output specification but remains functionally compatible for reset supervision applications.

Parameter Comparison

Engineering Selection Recommendations

SP706REN-L/TR is the primary substitute for the SP706REU-L/TR, offering identical electrical specifications and the same 8-MSOP/8-SOIC package family. This part is active and RoHS compliant, with superior inventory availability (20,200 units). The package transition from 8-MSOP to 8-SOIC requires PCB layout verification but maintains mechanical compatibility within the TSSOP family.

MAX706REUA+ and MAX706REUA+T are functionally equivalent alternatives from Analog Devices Inc./Maxim Integrated, maintaining the full -40°C to 85°C operating temperature range and all core electrical parameters. Both parts are active, ROHS3 compliant, and feature push-pull output architecture. MAX706REUA+T is available in tape-and-reel packaging for high-volume production.

MAX706RCUA+ and MAX706RCUA+T provide equivalent functionality with a narrower operating temperature range (0°C to 70°C). These parts are suitable for applications not requiring extended low-temperature operation. MAX706RCUA+T offers tape-and-reel packaging with the highest inventory availability (3,600 units).

MAX706AREUA+ is an active alternative with full temperature range coverage (-40°C to 85°C) and ROHS3 compliance, though with lower inventory levels (645 units).

DS1706REUA+ from Analog Devices Inc./Maxim Integrated operates with a slightly lower reset timeout (130ms minimum versus 140ms), which remains functionally acceptable for most applications. This part features push-pull output and is ROHS3 compliant with REACH unaffected status.

Parts with narrower temperature ranges (MAX706RCUA+, MAX706RCUA+T) should be selected only when application requirements do not extend beyond 0°C to 70°C.

Frequently Asked Questions (FAQ)

Q: Can MAX706RCUA+ be used as a direct replacement for SP706REU-L/TR?

A: MAX706RCUA+ maintains all core electrical parameters (2.63V threshold, active-low reset, 140ms timeout) but operates over 0°C to 70°C instead of -40°C to 85°C. Selection depends on application temperature requirements. If the design operates within 0°C to 70°C, this part is functionally compatible.

Q: What is the difference between SP706REN-L/TR and the MAX706 series?

A: SP706REN-L/TR is a MaxLinear product with 8-SOIC packaging. The MAX706 series from Analog Devices Inc./Maxim Integrated uses 8-MSOP/8-uMAX packaging. Both maintain identical electrical specifications (2.63V threshold, active-low reset, 140ms timeout). Package selection depends on PCB layout and manufacturing capabilities.

Q: Why do some substitutes specify push-pull output while the main part does not?

A: The main part SP706REU-L/TR does not specify output type in the provided data. Substitute parts with push-pull/totem-pole output (MAX706 series, DS1706REUA+) are functionally compatible for reset supervision applications. Push-pull output provides stronger drive capability and is suitable for most reset circuit topologies.

Q: Is DS1706REUA+ compatible if the reset timeout is 130ms instead of 140ms?

A: DS1706REUA+ with 130ms minimum reset timeout is functionally compatible with applications designed for 140ms timeout. The shorter timeout provides faster reset assertion and does not create incompatibility with circuits expecting 140ms or longer delays.

Q: What packaging considerations apply when substituting SP706REN-L/TR for SP706REU-L/TR?

A: SP706REN-L/TR uses 8-SOIC packaging while SP706REU-L/TR uses 8-MSOP. Both are 8-pin surface-mount packages within the TSSOP family. PCB footprint and land pattern must be verified for compatibility. Pin assignments remain identical across the SP706 series.

Q: Are all substitute parts RoHS compliant?

A: SP706REN-L/TR is RoHS compliant. All MAX706 variants and DS1706REUA+ are ROHS3 compliant. The main part SP706REU-L/TR does not specify RoHS status. For applications requiring RoHS compliance, select from active substitute parts with explicit ROHS3 certification.

Q: Which substitute offers the best inventory availability?

A: SP706REN-L/TR provides the highest inventory (20,200 units), followed by MAX706RCUA+T (3,600 units) and MAX706REUA+T (3,700 units). For high-volume production, tape-and-reel packaged variants (SP706REN-L/TR, MAX706RCUA+T, MAX706REUA+T) are recommended.