STM708SDS6F Equivalent & Substitute Parts

Part Overview

The STM708SDS6F is an active power management integrated circuit manufactured by STMicroelectronics, classified as a supervisor PMIC with single-channel voltage monitoring capability. This device functions as a simple reset/power-on reset supervisor with push-pull, totem pole output configuration. The part operates across an industrial temperature range of -40°C to 85°C and is housed in an 8-TSSOP surface mount package. The STM708SDS6F maintains active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and functional equivalence in power management supervision applications.

Substiute Parts

STM708SDS6F

STMicroelectronicsIn Stock: 7798STM708SDS6F Datasheet

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DS1708SEUA+

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

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DS1708SEUA+T&R

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

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MAX708SCUA+

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

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MAX708SCUA+T

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

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the STM708SDS6F are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Equivalence Criteria:

• Single-channel voltage monitoring capability
• Voltage threshold of 2.93V
• Push-pull output configuration
• Active High/Active Low reset functionality
• Reset timeout specification of 140ms minimum or equivalent

Mechanical Compatibility Criteria:

• Surface mount technology
• 8-pin package in TSSOP or uMAX/uSOP form factor
• 0.118" width (3.00mm) package dimension

Compliance & Status Criteria:

• Active product status
• RoHS3 compliance
• MSL rating of 1 (Unlimited)

The substitute parts identified maintain these core parameters while accommodating variations in packaging format (tube, tape & reel, cut tape) and operating temperature ranges. All substitute parts are manufactured by Analog Devices Inc./Maxim Integrated and belong to established supervisor IC product lines (MicroMonitor™ series for DS1708 variants, standard MAX708 series).

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status and full RoHS3 compliance, ensuring regulatory alignment with the STM708SDS6F. The following considerations apply to part selection:

DS1708SEUA+ and DS1708SEUA+T&R (Analog Devices Inc./Maxim Integrated): These parts operate across the full industrial temperature range of -40°C to 85°C, matching the STM708SDS6F thermal specification. The DS1708 series carries MicroMonitor™ product line designation. Reset timeout specification is 130ms minimum, which is 10ms lower than the STM708SDS6F. Both tube and tape & reel packaging options are available. The DS1708SEUA+T&R variant provides tape & reel packaging equivalent to the STM708SDS6F cut tape & Digi-Reel® format.

MAX708SCUA+ and MAX708SCUA+T (Analog Devices Inc./Maxim Integrated): These parts operate across a reduced temperature range of 0°C to 70°C, which is narrower than the STM708SDS6F specification of -40°C to 85°C. The MAX708 series maintains 140ms minimum reset timeout, matching the STM708SDS6F specification. The MAX708SCUA+T variant provides cut tape & Digi-Reel® packaging identical to the STM708SDS6F format. The MAX708SCUA+ variant is supplied in tube packaging.

Temperature Range Consideration: Applications requiring operation below 0°C or above 70°C must use either the STM708SDS6F or the DS1708 series variants. The MAX708 series is suitable only for applications within the 0°C to 70°C operating window.

Packaging Format Alignment: For direct replacement in existing supply chain workflows using cut tape & Digi-Reel® format, the MAX708SCUA+T or DS1708SEUA+T&R provide compatible packaging. Tube and tape & reel formats offer alternative procurement options.

Frequently Asked Questions (FAQ)

Q: Can the DS1708SEUA+ substitute for the STM708SDS6F in all applications?

A: The DS1708SEUA+ is electrically compatible with the STM708SDS6F across all critical parameters including voltage threshold (2.93V), output configuration (push-pull), reset type (active high/active low), and operating temperature range (-40°C to 85°C). The primary difference is reset timeout specification: DS1708SEUA+ specifies 130ms minimum versus 140ms minimum for STM708SDS6F. Applications with timing-critical reset sequences must verify this 10ms difference against system requirements.

Q: What is the difference between MAX708SCUA+ and MAX708SCUA+T?

A: Both parts are electrically identical with matching voltage threshold (2.93V), reset timeout (140ms minimum), and output configuration. The primary difference is packaging format: MAX708SCUA+ is supplied in tube packaging, while MAX708SCUA+T is supplied in cut tape & Digi-Reel® format. The MAX708SCUA+T packaging matches the STM708SDS6F format for direct supply chain compatibility.

Q: Why do the MAX708 variants have a narrower operating temperature range than the STM708SDS6F?

A: The MAX708 series is specified for 0°C to 70°C operating temperature, while the STM708SDS6F and DS1708 series support -40°C to 85°C. This reflects different product line specifications from the manufacturers. Applications requiring industrial temperature range operation (-40°C to 85°C) must use STM708SDS6F or DS1708 series parts.

Q: Are all substitute parts in the same physical package?

A: All substitute parts use 8-pin surface mount packages with 0.118" (3.00mm) width. The STM708SDS6F uses 8-TSSOP package, while substitute parts use 8-uMAX/uSOP package. Both package types are mechanically compatible in 8-pin, 3.00mm width form factor and are suitable for the same PCB footprints.

Q: What is the significance of the MicroMonitor™ series designation for DS1708 parts?

A: MicroMonitor™ is the product line designation used by Analog Devices Inc./Maxim Integrated for the DS1708 supervisor IC series. This designation indicates the product family and lineage but does not affect electrical compatibility or substitution suitability. The DS1708 series maintains the same functional specifications as the STM708SDS6F for voltage monitoring and reset supervision.

Q: Can I use MAX708SCUA+ in an application requiring -40°C operation?

A: No. The MAX708SCUA+ is specified for 0°C to 70°C operating temperature and is not rated for operation below 0°C. Applications requiring -40°C operation must use either the STM708SDS6F or DS1708 series variants, both of which support -40°C to 85°C operating range.

Q: How do reset timeout specifications affect part selection?

A: Reset timeout determines the minimum duration the reset output remains active after a power supply event. The STM708SDS6F and MAX708 series specify 140ms minimum, while DS1708 series specifies 130ms minimum. Applications with specific reset pulse width requirements must verify the selected part meets timing specifications. A 10ms difference may be significant in systems with tight reset timing constraints.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts (DS1708SEUA+, DS1708SEUA+T&R, MAX708SCUA+, MAX708SCUA+T) maintain RoHS3 compliance status identical to the STM708SDS6F, ensuring regulatory alignment for restricted substance requirements.