DS1232LPU Equivalent & Substitute Parts

Part Overview

The DS1232LPU is a single-channel power supply supervisor IC from Analog Devices Inc./Maxim Integrated, part of the MicroMonitor™ series. This device provides reset and power-on reset functionality with open drain and push-pull output options. The DS1232LPU is classified as obsolete, making identification of functionally equivalent active alternatives essential for new designs and production continuity.

Substiute Parts

DS1232LPU

Analog Devices Inc./Maxim IntegratedIn Stock: 1044DS1232LPU Datasheet

Current PartRFQ

DS1232LPU+

Analog Devices Inc./Maxim IntegratedIn Stock: 1086DS1232LPU+ Datasheet

DirectRFQ

DS1232LPU+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 962DS1232LPU+T&R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS1232LPU is determined by strict equivalence across the following critical parameters:

• Functional Type: Single-channel supervisor with reset/power-on reset capability
• Voltage Monitoring: 1 channel with 4.37V and 4.62V threshold options
• Output Configuration: Open drain and push-pull output support
• Reset Logic: Active high and active low selectable modes
• Reset Timeout: Adjustable/selectable timeout functionality
• Operating Temperature: 0°C to 70°C range
• Package Compatibility: 8-TSSOP/8-MSOP form factor with 0.118" (3.00mm) width
• Electrical Characteristics: Identical voltage thresholds and output behavior

The identified substitutes—DS1232LPU+ and DS1232LPU+T&R—maintain complete electrical and functional equivalence to the DS1232LPU. The differences between these parts are limited to packaging format (tube versus tape & reel) and product status (active versus obsolete), with no impact on circuit-level performance or pin compatibility.

Parameter Comparison

Engineering Selection Recommendations

For New Designs and Production Continuity:

The DS1232LPU is obsolete and should not be selected for new designs. Both DS1232LPU+ and DS1232LPU+T&R are active products with identical electrical specifications and pin compatibility.

DS1232LPU+ (Tube Packaging) is suitable for:

• Low-volume applications
• Prototype and development phases
• Manual assembly processes
• Applications where tape & reel format is not required

DS1232LPU+T&R (Tape & Reel Packaging) is suitable for:

• High-volume production runs
• Automated pick-and-place assembly
• Manufacturing environments requiring standardized packaging
• Cost-optimized production scenarios

Compliance Advantage:

Both active substitutes (DS1232LPU+ and DS1232LPU+T&R) are ROHS3 compliant, whereas the original DS1232LPU is RoHS non-compliant. This compliance improvement is significant for applications subject to environmental regulations and industry standards.

Frequently Asked Questions (FAQ)

Q: Can DS1232LPU+ and DS1232LPU+T&R be used interchangeably with DS1232LPU?

A: Yes. Both substitutes are electrically and functionally identical to the DS1232LPU. Pin configuration, voltage thresholds, output behavior, and operating temperature range are identical. The only differences are packaging format and product status.

Q: What is the difference between DS1232LPU+ and DS1232LPU+T&R?

A: The electrical specifications are identical. DS1232LPU+ is supplied in tube packaging, while DS1232LPU+T&R is supplied in tape & reel format. Selection depends on assembly method and production volume requirements.

Q: Why is the original DS1232LPU obsolete?

A: The DS1232LPU has been superseded by active variants (DS1232LPU+ and DS1232LPU+T&R) that offer improved compliance status, including ROHS3 certification. Analog Devices Inc./Maxim Integrated maintains these active alternatives for continued product support.

Q: Are there any electrical differences between the obsolete and active versions?

A: No. All electrical parameters, including voltage thresholds (4.37V, 4.62V), output configuration (open drain, push-pull), reset logic (active high/active low), and operating temperature range (0°C to 70°C) are identical across all three part numbers.

Q: Which substitute should be selected for high-volume manufacturing?

A: DS1232LPU+T&R (tape & reel format) is optimized for high-volume automated assembly. This packaging format is standard for pick-and-place equipment and reduces handling and assembly costs in production environments.

Q: Is the 8-uMAX/uSOP package compatible with standard PCB designs?

A: Yes. The 8-TSSOP/8-MSOP package with 0.118" (3.00mm) width is a standard surface-mount form factor. All three part numbers use identical package geometry, ensuring direct PCB compatibility without layout modifications.

Q: What is the moisture sensitivity level, and does it affect storage?

A: All three parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard component storage conditions are sufficient; no special desiccant or humidity-controlled storage is required.