DS1232LPS/T&R Equivalent & Substitute Parts

Part Overview

The DS1232LPS/T&R is a supervisor integrated circuit from Analog Devices Inc./Maxim Integrated, classified as a Power Management (PMIC) component. This device functions as a single-channel reset/power-on reset supervisor with open drain and push-pull output capabilities. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The MicroMonitor™ series supervisor provides voltage monitoring and reset signal generation for microprocessor-based systems operating in the 0°C to 70°C temperature range.

Key Parameters

Parameter	Value
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage Threshold	4.37V, 4.62V
Output Configuration	Open Drain, Push-Pull
Reset Logic	Active High/Active Low
Reset Timeout	Adjustable/Selectable
Operating Temperature	0°C ~ 70°C (TA)
Package Type	16-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the DS1232LPS/T&R is determined by strict equivalence across the following critical parameters:

Single-channel voltage monitoring capability
Voltage threshold levels of 4.37V and 4.62V
Output configuration supporting both open drain and push-pull modes
Active high/active low reset logic capability
Adjustable or selectable reset timeout functionality
16-SOIC surface mount package format
Operating temperature range of 0°C to 70°C
ROHS3 compliance and MSL 1 rating

Substitute parts are grouped into two categories: direct manufacturer equivalents (same manufacturer, different packaging) and parametric equivalents (different manufacturer, identical electrical specifications and package).

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage Threshold	Output Type	Reset Timeout	Package	Packaging Format	Inventory
DS1232LPS/T&R	Analog Devices Inc./Maxim Integrated	Obsolete	4.37V, 4.62V	Open Drain, Push-Pull	Adjustable/Selectable	16-SOIC	Tape & Reel	1168 Pcs
DS1232LPS+T&R	Analog Devices Inc./Maxim Integrated	Active	4.37V, 4.62V	Open Drain, Push-Pull	Adjustable/Selectable	16-SOIC	Tape & Reel	2000 Pcs
DS1232S+T&R	Analog Devices Inc./Maxim Integrated	Active	4.37V, 4.62V	Open Drain, Push-Pull	Adjustable/Selectable	16-SOIC	Cut Tape & Digi-Reel®	4900 Pcs
TC1232COE	Microchip Technology	Active	4.37V, 4.62V	Open Drain or Open Collector	250ms Minimum	16-SOIC	Tube	689 Pcs
TC1232COE713	Microchip Technology	Active	4.37V, 4.62V	Open Drain or Open Collector	250ms Minimum	16-SOIC	Tape & Reel	766 Pcs

Engineering Selection Recommendations

For applications currently using the obsolete DS1232LPS/T&R, the following selection criteria apply:

Direct Manufacturer Equivalents (Recommended Primary Choice): DS1232LPS+T&R and DS1232S+T&R are active products from the original manufacturer with identical electrical specifications. DS1232LPS+T&R maintains the same packaging format (Tape & Reel) as the original part. DS1232S+T&R offers higher inventory availability (4900 units) with equivalent electrical performance, differing only in packaging format (Cut Tape & Digi-Reel®).

Parametric Equivalents (Alternative Choice): TC1232COE and TC1232COE713 from Microchip Technology meet all critical electrical parameters including voltage thresholds, output configurations, reset logic, and package format. These parts are active products with established supply availability. The primary distinction is the reset timeout specification: Microchip parts specify 250ms minimum, while Analog Devices parts specify adjustable/selectable timeout. Both approaches satisfy single-channel supervisor functionality.

Compliance Status: All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical operating temperature specifications, ensuring regulatory and environmental compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can DS1232LPS+T&R directly replace DS1232LPS/T&R? A: Yes. DS1232LPS+T&R is the active production equivalent with identical electrical specifications, voltage thresholds, output configurations, and package format. The only difference is product status (active vs. obsolete).

Q: What is the difference between DS1232LPS+T&R and DS1232S+T&R? A: Both parts are electrically equivalent with identical voltage thresholds, output types, and reset timeout capabilities. The difference is packaging format: DS1232LPS+T&R uses Tape & Reel, while DS1232S+T&R uses Cut Tape & Digi-Reel®. DS1232S+T&R has significantly higher inventory availability.

Q: Are Microchip TC1232COE parts compatible with the original DS1232LPS/T&R? A: Yes, from an electrical and package perspective. Both manufacturers' parts share identical voltage thresholds (4.37V, 4.62V), single-channel monitoring, output configurations, reset logic, and 16-SOIC package format. The reset timeout specification differs: TC1232COE specifies 250ms minimum, while DS1232LPS specifies adjustable/selectable. Verify your application's timeout requirements before selection.

Q: What packaging formats are available for substitutes? A: Analog Devices parts are available in Tape & Reel (DS1232LPS+T&R) and Cut Tape & Digi-Reel® (DS1232S+T&R). Microchip parts are available in Tube (TC1232COE) and Tape & Reel (TC1232COE713). Select based on your assembly process requirements.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating, matching the original part's environmental specifications.

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