SP708SCU-L Equivalent & Substitute Parts

Part Overview

The SP708SCU-L is a single-channel power management supervisor IC manufactured by MaxLinear, Inc., designed for reset and power-on reset applications in embedded systems. This device monitors a single voltage threshold at 2.93V and provides active high/active low reset outputs with a 140ms minimum reset timeout. The SP708SCU-L is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. Functionally equivalent alternatives are available from Analog Devices Inc./Maxim Integrated and STMicroelectronics that maintain the same electrical specifications and package compatibility.

Substiute Parts

SP708SCU-L

MaxLinear, Inc.In Stock: 3035SP708SCU-L Datasheet

Current PartRFQ

DS1708SEUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1109DS1708SEUA+ Datasheet

MFR RecommendedRFQ

DS1708SEUA+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 855DS1708SEUA+T&R Datasheet

MFR RecommendedRFQ

MAX708SCUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2183MAX708SCUA+ Datasheet

MFR RecommendedRFQ

MAX708SCUA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 10284MAX708SCUA+T Datasheet

MFR RecommendedRFQ

STM708SDS6F

STMicroelectronicsIn Stock: 7798STM708SDS6F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SP708SCU-L is determined by the following critical parameters that must remain consistent across all equivalent parts:

• Voltage Threshold: 2.93V (all substitutes maintain this specification)
• Reset Type: Active High/Active Low (all substitutes support this configuration)
• Number of Channels: 1 (single-channel monitoring)
• Package Compatibility: 8-TSSOP, 8-MSOP form factor with 0.118" (3.00mm) width
• Mounting Type: Surface Mount
• Reset Timeout: 140ms minimum (primary specification for timing-critical applications)

The substitute parts are grouped into two categories based on product status and availability:

Active Status Substitutes (Recommended for new designs and ongoing production):

• DS1708SEUA+ and DS1708SEUA+T&R (Analog Devices Inc./Maxim Integrated, MicroMonitor™ series)
• MAX708SCUA+ and MAX708SCUA+T (Analog Devices Inc./Maxim Integrated)
• STM708SDS6F (STMicroelectronics)

All active substitutes maintain the 2.93V threshold, single-channel architecture, and 8-pin package compatibility required for direct replacement.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring exact temperature range matching (0°C ~ 70°C): Select MAX708SCUA+ or MAX708SCUA+T. Both parts maintain the original operating temperature specification of the SP708SCU-L while offering active product status and ROHS3 compliance. MAX708SCUA+T provides higher inventory availability (10,200 pcs) in Cut Tape & Digi-Reel® packaging.

For applications permitting extended temperature range (-40°C ~ 85°C): DS1708SEUA+, DS1708SEUA+T&R, or STM708SDS6F are suitable alternatives. These parts provide broader operating temperature coverage and active product status. DS1708SEUA+ and DS1708SEUA+T&R are part of the MicroMonitor™ series from Analog Devices Inc./Maxim Integrated. STM708SDS6F from STMicroelectronics offers the highest inventory availability (7,763 pcs) among extended-temperature options.

Packaging considerations:

• Tube packaging: DS1708SEUA+, MAX708SCUA+
• Tape & Reel (TR): DS1708SEUA+T&R
• Cut Tape (CT) & Digi-Reel®: MAX708SCUA+T, STM708SDS6F

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage processes.

Frequently Asked Questions (FAQ)

Q: Can DS1708SEUA+ be used as a direct replacement for SP708SCU-L? A: DS1708SEUA+ is electrically compatible with the SP708SCU-L, sharing the same 2.93V threshold, single-channel architecture, and 8-pin package. The primary difference is the reset timeout specification (130ms minimum vs. 140ms minimum) and extended operating temperature range (-40°C ~ 85°C vs. 0°C ~ 70°C). For applications operating within 0°C ~ 70°C, this part is suitable. For timing-critical applications requiring exactly 140ms minimum reset timeout, MAX708SCUA+ or MAX708SCUA+T are preferred.

Q: What is the difference between MAX708SCUA+ and MAX708SCUA+T? A: Both parts are electrically identical with matching specifications. The difference is packaging format: MAX708SCUA+ is supplied in Tube packaging, while MAX708SCUA+T is supplied in Cut Tape & Digi-Reel® format. MAX708SCUA+T has significantly higher inventory availability (10,200 pcs vs. 2,100 pcs).

Q: Is STM708SDS6F compatible with the SP708SCU-L? A: STM708SDS6F maintains the 2.93V threshold, single-channel configuration, and 8-pin package compatibility. It meets the 140ms minimum reset timeout specification. The extended operating temperature range (-40°C ~ 85°C) provides additional margin beyond the original specification. This part is suitable for direct replacement in applications not constrained to the original 0°C ~ 70°C temperature range.

Q: Why do some substitutes have different reset timeout specifications? A: DS1708SEUA+ and DS1708SEUA+T&R specify 130ms minimum reset timeout, which is shorter than the SP708SCU-L specification of 140ms minimum. For applications where the 140ms timing is critical, select MAX708SCUA+, MAX708SCUA+T, or STM708SDS6F, which all maintain the 140ms minimum specification.

Q: Are all substitute parts RoHS compliant? A: All substitute parts are ROHS3 compliant. The original SP708SCU-L is RoHS compliant. All parts meet the same MSL 1 (Unlimited) moisture sensitivity requirement, ensuring compatibility with standard PCB assembly processes.

Q: Which substitute offers the best inventory availability? A: MAX708SCUA+T offers the highest inventory availability at 10,200 pcs in Cut Tape & Digi-Reel® packaging. STM708SDS6F provides 7,763 pcs, also in Cut Tape & Digi-Reel® format. Both are suitable for high-volume production requirements.