DS1232LPN Equivalent & Substitute Parts

Part Overview

The DS1232LPN is a Power Management Integrated Circuit (PMIC) supervisor manufactured by Analog Devices Inc./Maxim Integrated. It functions as a single-channel reset/power-on reset supervisor with open drain and push-pull output capabilities. The part is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs and ongoing system support. Active substitute parts maintain the core supervisory functionality while offering improved product status and compliance certifications.

Substiute Parts

DS1232LPN

Analog Devices Inc./Maxim IntegratedIn Stock: 3639DS1232LPN Datasheet

Current PartRFQ

DS1232LPN+

Analog Devices Inc./Maxim IntegratedIn Stock: 1826DS1232LPN+ Datasheet

DirectRFQ

DS1232N+

Analog Devices Inc./Maxim IntegratedIn Stock: 8962DS1232N+ Datasheet

Parametric EquivalentRFQ

ADM1232ANZ

Analog Devices Inc.In Stock: 3983ADM1232ANZ Datasheet

MFR RecommendedRFQ

MIC1232NY

Microchip TechnologyIn Stock: 2326MIC1232NY Datasheet

MFR RecommendedRFQ

TC1232EPA

Microchip TechnologyIn Stock: 1311TC1232EPA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS1232LPN is determined by the following critical parameters:

Core Functional Requirements:

• Single-channel voltage monitoring capability
• Reset/power-on reset supervisor functionality
• Open drain and/or push-pull output support
• Active High/Active Low reset logic compatibility
• Operating temperature range: -40°C ~ 85°C (TA)
• Through-hole mounting in 8-DIP package (0.300", 7.62mm)
• 8-PDIP supplier device package

Substitution Categories:

Direct Manufacturer Substitutes maintain identical part numbering with packaging variations (DS1232LPN+, DS1232N+). These parts share the same base product number (DS1232LP or DS1232) and are manufactured by Analog Devices Inc./Maxim Integrated.

Manufacturer-Recommended Equivalents (ADM1232ANZ, MIC1232NY, TC1232EPA) are functionally equivalent parts from Analog Devices Inc. and Microchip Technology that meet the core supervisory requirements. These parts differ in specific voltage threshold configurations and reset timeout specifications but maintain compatibility with the primary electrical and mechanical interfaces.

Parameter Comparison

Engineering Selection Recommendations

DS1232LPN+ and DS1232N+ are the primary substitutes for the obsolete DS1232LPN. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and maintain identical electrical specifications and packaging. DS1232LPN+ is supplied in tube packaging with 1812 units in stock, while DS1232N+ is also tube-packaged with 8909 units available. Both achieve ROHS3 compliance and active product status, making them suitable for new designs and legacy system replacements.

ADM1232ANZ is a manufacturer-recommended equivalent from Analog Devices Inc. with active product status and ROHS3 compliance. This part features adjustable/selectable voltage thresholds and a 250ms minimum reset timeout, differing from the fixed threshold configuration of the DS1232LPN. The ADM1232ANZ maintains open drain and push-pull output capability with active high/active low reset logic. Inventory availability is 3922 units.

MIC1232NY is a Microchip Technology equivalent with active product status and ROHS3 compliance. This part specifies active low reset logic only (versus the active high/active low capability of the DS1232LPN) and features open drain or open collector output configuration. The MIC1232NY maintains the 4.37V and 4.62V voltage thresholds with a 250ms minimum reset timeout. Inventory availability is 2280 units.

TC1232EPA is a Microchip Technology equivalent with active product status and ROHS3 compliance. This part supports both active high and active low reset logic with open drain or open collector output configuration. The TC1232EPA maintains the 4.37V and 4.62V voltage thresholds with a 250ms minimum reset timeout. Inventory availability is 1215 units.

All substitute parts maintain the -40°C ~ 85°C operating temperature range, through-hole mounting, 8-DIP package format, and MSL rating 1 (unlimited) of the original DS1232LPN.

Frequently Asked Questions (FAQ)

Q: Can DS1232LPN+ or DS1232N+ be used as direct replacements for DS1232LPN?

A: Yes. DS1232LPN+ and DS1232N+ are direct electrical and mechanical equivalents manufactured by Analog Devices Inc./Maxim Integrated. Both parts share the same core functionality, voltage thresholds (4.37V, 4.62V), output configurations (open drain, push-pull), reset logic (active high/active low), and package specifications (8-DIP, 0.300", 7.62mm). The primary differences are product status (active versus obsolete) and RoHS compliance (ROHS3 versus non-compliant).

Q: What are the key differences between ADM1232ANZ and the DS1232LPN?

A: The ADM1232ANZ differs in two specifications: voltage threshold configuration (adjustable/selectable versus fixed 4.37V, 4.62V) and reset timeout (250ms minimum versus adjustable/selectable). Both parts maintain identical output configurations, reset logic options, operating temperature range, and package specifications. The ADM1232ANZ is suitable for applications requiring programmable voltage thresholds.

Q: Can MIC1232NY be substituted for DS1232LPN in all applications?

A: MIC1232NY is functionally equivalent for most applications but has one operational constraint: reset logic is limited to active low only, whereas DS1232LPN supports both active high and active low. Applications requiring active high reset logic must use DS1232LPN+, DS1232N+, ADM1232ANZ, or TC1232EPA. MIC1232NY maintains identical voltage thresholds, operating temperature range, and package specifications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts (DS1232LPN+, DS1232N+, ADM1232ANZ, MIC1232NY, TC1232EPA) are ROHS3 compliant. The original DS1232LPN is RoHS non-compliant. This compliance difference is significant for new designs and systems subject to RoHS regulations.

Q: Do all substitute parts use the same 8-DIP package?

A: Yes. All substitute parts use the 8-DIP (0.300", 7.62mm) through-hole package with 8-PDIP supplier device package designation. Pin-to-pin compatibility is maintained across all parts, allowing direct socket substitution without PCB modifications.

Q: What is the difference between open drain and open collector output?

A: Both output configurations function as current sinks. Open drain is the CMOS equivalent of open collector (bipolar) technology. DS1232LPN specifies open drain and push-pull outputs. MIC1232NY and TC1232EPA specify open drain or open collector outputs. These configurations are functionally compatible in typical reset supervisor applications.

Q: Which substitute part has the highest inventory availability?

A: DS1232N+ has the highest inventory with 8909 units in stock, followed by ADM1232ANZ with 3922 units, MIC1232NY with 2280 units, DS1232LPN+ with 1812 units, and TC1232EPA with 1215 units.