SP708SCN-L Equivalent & Substitute Parts

Part Overview

The SP708SCN-L is a single-channel supervisor IC manufactured by MaxLinear, Inc., housed in an 8-SOIC surface mount package. This power management PMIC functions as a simple reset/power-on reset device with a 2.93V voltage threshold and 140ms minimum reset timeout. The part is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and production requirements.

Key Parameters

Parameter	SP708SCN-L
Manufacturer	MaxLinear, Inc.
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	2.93V
Reset	Active High/Active Low
Reset Timeout	140ms Minimum
Operating Temperature	0°C ~ 70°C (TA)
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution eligibility for the SP708SCN-L is determined by the following critical parameters:

Voltage threshold: 2.93V (exact match required)
Package type: 8-SOIC form factor (mechanical and electrical compatibility)
Functional type: Simple reset/power-on reset supervisor
Number of monitored channels: 1 channel
Reset polarity: Active High/Active Low capability
Reset timeout: 140ms minimum or compatible timing
Mounting type: Surface mount

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in output stage configuration (Push-Pull, Totem Pole, or Complementary), operating temperature range, and packaging format (Tube, Tape & Reel, Cut Tape) do not affect functional substitution when the above parameters align.

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Reset Timeout	Operating Temperature	Output Type	Package Format	Product Status	RoHS Status
SP708SCN-L	MaxLinear, Inc.	2.93V	140ms Min	0°C ~ 70°C	—	—	Discontinued	RoHS Compliant
STM708SM6F	STMicroelectronics	2.93V	140ms Min	-40°C ~ 85°C	Push-Pull, Totem Pole	Tape & Reel	Active	ROHS3 Compliant
DS1708SESA+	Analog Devices Inc./Maxim Integrated	2.93V	130ms Min	-40°C ~ 85°C	Push-Pull, Push-Pull	Tube	Active	ROHS3 Compliant
DS1708SESA+T&R	Analog Devices Inc./Maxim Integrated	2.93V	130ms Min	-40°C ~ 85°C	Push-Pull, Push-Pull	Tape & Reel	Active	ROHS3 Compliant
MAX708SCSA+	Analog Devices Inc./Maxim Integrated	2.93V	140ms Min	0°C ~ 70°C	Push-Pull, Push-Pull	Tube	Active	ROHS3 Compliant
MAX708SCSA+T	Analog Devices Inc./Maxim Integrated	2.93V	140ms Min	0°C ~ 70°C	Push-Pull, Push-Pull	Cut Tape & Digi-Reel	Active	ROHS3 Compliant
MAX708SESA+	Analog Devices Inc./Maxim Integrated	2.93V	140ms Min	-40°C ~ 85°C	Push-Pull, Push-Pull	Tube	Active	ROHS3 Compliant
MAX708SESA+T	Analog Devices Inc./Maxim Integrated	2.93V	140ms Min	-40°C ~ 85°C	Push-Pull, Push-Pull	Cut Tape & Digi-Reel	Active	ROHS3 Compliant
MIC708SMY	Microchip Technology	2.93V	140ms Min	-40°C ~ 85°C	Complementary	Tube	Active	ROHS3 Compliant
MIC708SMY-TR	Microchip Technology	2.93V	140ms Min	-40°C ~ 85°C	Complementary	Tape & Reel	Active	ROHS3 Compliant
STM708SAM6F	STMicroelectronics	2.93V	160ms Min	-40°C ~ 85°C	Push-Pull, Totem Pole	Tape & Reel	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts maintain the 2.93V voltage threshold and 8-SOIC package specification required for direct functional replacement of the SP708SCN-L. Selection among active alternatives should be based on the following criteria:

Temperature Range Compatibility: The SP708SCN-L operates within 0°C to 70°C. Substitute parts with extended temperature ranges (-40°C to 85°C) provide broader operational capability and are suitable for applications requiring wider environmental tolerance. Parts with matching 0°C to 70°C ranges (MAX708SCSA+, MAX708SCSA+T) maintain identical thermal specifications.

Product Status and Availability: All substitute parts listed carry Active product status with current inventory availability, ensuring long-term supply chain reliability compared to the discontinued SP708SCN-L.

Compliance Certifications: All substitute parts meet ROHS3 compliance and carry REACH Unaffected status where applicable, satisfying regulatory requirements for electronic component procurement.

Reset Timeout Specifications: Most substitutes maintain the 140ms minimum reset timeout. The DS1708SESA+ and DS1708SESA+T&R variants specify 130ms minimum timeout, which is acceptable for applications where faster reset response is beneficial. The STM708SAM6F specifies 160ms minimum timeout, suitable for applications requiring extended reset duration.

Packaging Format: Selection between Tube, Tape & Reel, and Cut Tape formats depends on production volume and assembly process requirements. High-volume production typically utilizes Tape & Reel packaging, while lower volumes may use Tube format.

Frequently Asked Questions (FAQ)

Q: Can the SP708SCN-L be directly replaced with any of these substitute parts?

A: Yes, all listed parts maintain the critical 2.93V voltage threshold, 8-SOIC package form factor, and single-channel reset/power-on reset functionality. Direct pin-compatible substitution is supported across all alternatives.

Q: What is the significance of different output types (Push-Pull, Totem Pole, Complementary)?

A: Output stage configuration affects the electrical characteristics of the reset signal delivery. Push-Pull and Totem Pole outputs provide active drive capability in both high and low states. Complementary outputs provide complementary signal pairs. All configurations are functionally compatible with standard supervisor IC applications when the voltage threshold and reset polarity specifications match.

Q: Does the extended temperature range of substitute parts affect compatibility?

A: No. Parts rated for -40°C to 85°C operation are fully compatible with applications designed for 0°C to 70°C operation. The extended range provides additional operational margin without affecting performance within the original temperature specification.

Q: Why do some parts have different reset timeout specifications?

A: Reset timeout variations (130ms, 140ms, 160ms minimum) reflect manufacturer design differences. All values are acceptable for standard power-on reset applications. Applications with specific timing requirements should verify compatibility with the actual timeout specification of the selected substitute.

Q: What packaging format should be selected for production?

A: Tape & Reel (TR) format is standard for high-volume automated assembly. Tube format is suitable for lower-volume or manual assembly processes. Cut Tape & Digi-Reel format provides flexibility for mixed-volume production. All formats contain identical die and electrical specifications.

Q: Are all substitute parts RoHS compliant?

A: Yes. The original SP708SCN-L is RoHS Compliant, and all substitute parts meet ROHS3 compliance standards, ensuring regulatory alignment for procurement and assembly.

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