DS1232N Equivalent & Substitute Parts

Part Overview

The DS1232N is a single-channel power supply supervisor IC manufactured by Analog Devices Inc./Maxim Integrated, designed for power-on reset and simple reset applications. This device monitors a single voltage rail and provides active high/active low reset outputs with adjustable or selectable timeout periods. The DS1232N is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. Substitute parts must maintain compatibility across electrical parameters, package form factor, and functional output characteristics.

Substiute Parts

DS1232N

Analog Devices Inc./Maxim IntegratedIn Stock: 2913DS1232N Datasheet

Current PartRFQ

DS1232N+

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

DirectRFQ

DS1232LPN+

Analog Devices Inc./Maxim IntegratedIn Stock: 1826DS1232LPN+ 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 of the DS1232N is determined by the following critical parameters:

Electrical Compatibility:

• Single voltage monitoring channel
• Voltage threshold range: 4.37V to 4.62V
• Output configuration: Open Drain or Open Drain/Push-Pull capability
• Reset logic: Active High and/or Active Low support
• Reset timeout: Minimum 250ms or adjustable/selectable capability
• Operating temperature range: -40°C to 85°C

Mechanical Compatibility:

• Package: 8-DIP (0.300", 7.62mm)
• Mounting: Through Hole
• Pin count and pinout alignment

Regulatory Compliance:

• RoHS3 compliance
• Moisture Sensitivity Level 1

Substitute parts are grouped into two categories: direct manufacturer variants (DS1232N+, DS1232LPN+) and cross-manufacturer equivalents (ADM1232ANZ, MIC1232NY, TC1232EPA). All listed substitutes meet the electrical and mechanical requirements for direct replacement in applications requiring single-channel voltage supervision with adjustable reset timing.

Parameter Comparison

Engineering Selection Recommendations

Direct Manufacturer Variants (Preferred for Obsolete Part Replacement):

DS1232N+ and DS1232LPN+ are active production variants from Analog Devices Inc./Maxim Integrated. Both maintain identical electrical specifications to the obsolete DS1232N, including fixed voltage thresholds (4.37V, 4.62V), adjustable/selectable reset timeout, and dual reset logic capability (Active High/Active Low). DS1232N+ is supplied in tube packaging with higher inventory availability (8909 units), while DS1232LPN+ is also tube-packaged with lower inventory (1812 units). Both are ROHS3 compliant and carry MSL 1 rating. These variants provide the most direct substitution path for legacy DS1232N applications.

Cross-Manufacturer Equivalents:

ADM1232ANZ (Analog Devices) provides equivalent functionality with adjustable/selectable voltage thresholds, offering design flexibility for applications requiring non-standard threshold values. Reset timeout is specified as 250ms minimum rather than adjustable. Active inventory is 3922 units.

MIC1232NY (Microchip Technology) maintains fixed voltage thresholds (4.37V, 4.62V) matching the DS1232N, but supports only Active Low reset logic. Output is specified as Open Drain or Open Collector. Reset timeout is 250ms minimum. Inventory is 2280 units. This part is suitable for applications requiring only Active Low reset signaling.

TC1232EPA (Microchip Technology) provides the most comprehensive feature set among cross-manufacturer options, supporting both Active High and Active Low reset logic with 250ms minimum timeout. Voltage thresholds are fixed at 4.37V and 4.62V. Output is Open Drain or Open Collector. Inventory is 1215 units. This part is recommended for applications requiring dual reset logic capability from a non-Analog Devices source.

All substitute parts maintain through-hole 8-DIP packaging, -40°C to 85°C operating temperature range, ROHS3 compliance, and MSL 1 rating, ensuring mechanical and environmental compatibility with the original DS1232N.

Frequently Asked Questions (FAQ)

Q: Can DS1232N+ be used as a direct replacement for DS1232N?

A: Yes. DS1232N+ is an active production variant from the same manufacturer (Analog Devices Inc./Maxim Integrated) with identical electrical specifications, including voltage thresholds (4.37V, 4.62V), adjustable/selectable reset timeout, and dual reset logic (Active High/Active Low). Package, pinout, and operating temperature range are identical. The primary difference is product status: DS1232N is obsolete while DS1232N+ is active production.

Q: What is the difference between DS1232N+ and DS1232LPN+?

A: Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical specifications. The difference lies in the base product number designation (DS1232 versus DS1232LP) and inventory availability. DS1232N+ has higher stock (8909 units) compared to DS1232LPN+ (1812 units). Both are ROHS3 compliant, MSL 1, and supplied in tube packaging.

Q: Can MIC1232NY replace DS1232N in all applications?

A: MIC1232NY is compatible with DS1232N applications that require only Active Low reset logic. The part maintains identical voltage thresholds (4.37V, 4.62V) and operating temperature range (-40°C to 85°C). However, MIC1232NY does not support Active High reset logic, which may be required in some designs. Output is specified as Open Drain or Open Collector rather than the DS1232N's Open Drain/Push-Pull combination. Verify reset logic requirements before substitution.

Q: What are the key differences between ADM1232ANZ and DS1232N?

A: ADM1232ANZ differs from DS1232N in two primary aspects: voltage threshold configuration and reset timeout specification. ADM1232ANZ features adjustable/selectable voltage thresholds, providing design flexibility for non-standard threshold values, whereas DS1232N has fixed thresholds at 4.37V and 4.62V. ADM1232ANZ specifies 250ms minimum reset timeout compared to DS1232N's adjustable/selectable timeout. Both support Active High/Active Low reset logic and maintain identical package, operating temperature, and compliance specifications.

Q: Is TC1232EPA suitable for applications requiring both Active High and Active Low reset outputs?

A: Yes. TC1232EPA supports both Active High and Active Low reset logic, matching the DS1232N's dual reset capability. Voltage thresholds are fixed at 4.37V and 4.62V. Reset timeout is specified as 250ms minimum. Output is Open Drain or Open Collector. Package, operating temperature range, and compliance ratings are identical to DS1232N. TC1232EPA is recommended for applications requiring dual reset logic from a Microchip Technology source.

Q: Are all substitute parts available in the same 8-DIP package as DS1232N?

A: Yes. All listed substitute parts (DS1232N+, DS1232LPN+, ADM1232ANZ, MIC1232NY, TC1232EPA) are packaged in 8-DIP (0.300", 7.62mm) with through-hole mounting. Pinout compatibility should be verified against application schematics, as some cross-manufacturer parts may have minor pin assignment variations despite identical package form factor.

Q: Do all substitute parts meet RoHS3 and MSL requirements?

A: Yes. All substitute parts listed are ROHS3 compliant and carry Moisture Sensitivity Level 1 (Unlimited) rating, matching the DS1232N's environmental and regulatory compliance specifications.