MIC1232M-TR Equivalent & Substitute Parts

Part Overview

The MIC1232M-TR is a single-channel power supply supervisor IC manufactured by Microchip Technology, designed for power-on reset and voltage monitoring applications. This device features an open drain or open collector output with active low reset functionality and a 250ms minimum reset timeout. The MIC1232M-TR is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

MIC1232M-TR

Microchip TechnologyIn Stock: 974MIC1232M-TR Datasheet

Current PartRFQ

MIC1232MY-TR

Microchip TechnologyIn Stock: 1666MIC1232MY-TR Datasheet

DirectRFQ

TC1232COA

Microchip TechnologyIn Stock: 8715TC1232COA Datasheet

MFR RecommendedRFQ

LTC1232IS8#PBF

Analog Devices Inc.In Stock: 1484LTC1232IS8#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MIC1232M-TR are qualified based on the following critical parameters that determine functional equivalence:

• Single-channel voltage monitoring capability
• Voltage threshold range of 4.37V and 4.62V
• Open drain or open collector output configuration
• Reset timeout of 250ms minimum
• 8-SOIC package form factor with identical physical dimensions
• Surface mount technology compatibility
• Operating temperature range support

The identified substitute parts maintain these core electrical and mechanical specifications, ensuring direct functional replacement in existing circuit designs. Variations in product status, packaging format (tape & reel versus tube), and RoHS compliance are noted but do not affect electrical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

MIC1232MY-TR is the primary substitute for MIC1232M-TR. Both parts are manufactured by Microchip Technology and share identical electrical specifications and package form factor. The MIC1232MY-TR is currently active in production and available in higher inventory quantities. The primary distinction is packaging format: MIC1232M-TR is supplied in tape & reel format, while MIC1232MY-TR is available in cut tape and Digi-Reel format. The MIC1232MY-TR achieves ROHS3 compliance, whereas the original part is RoHS non-compliant.

TC1232COA serves as an alternative substitute from Microchip Technology. This part maintains the same voltage threshold, reset timeout, and package specifications. The operating temperature range is narrower (0°C ~ 70°C versus -40°C ~ 85°C), which may limit applicability in extended temperature environments. The TC1232COA offers flexible reset polarity (active high or active low) and is supplied in tube packaging. ROHS3 compliance is achieved.

LTC1232IS8#PBF, manufactured by Analog Devices Inc., provides cross-manufacturer substitution capability. Electrical parameters including voltage thresholds, reset timeout, and operating temperature range (-40°C ~ 85°C) align with the original MIC1232M-TR specification. The LTC1232IS8#PBF offers flexible reset polarity and achieves ROHS3 compliance. Supplier device package designation differs (8-SO versus 8-SOIC), though physical dimensions remain compatible.

For applications requiring strict temperature range coverage from -40°C to 85°C, MIC1232MY-TR or LTC1232IS8#PBF are preferred. For applications operating within 0°C to 70°C, TC1232COA is suitable. All three substitutes maintain the critical voltage monitoring and reset timeout specifications of the original part.

Frequently Asked Questions (FAQ)

Q: Can MIC1232MY-TR directly replace MIC1232M-TR in existing designs?

A: Yes. Both parts share identical electrical specifications, voltage thresholds (4.37V, 4.62V), reset timeout (250ms minimum), output configuration (open drain or open collector), and 8-SOIC package dimensions. The primary difference is packaging format and RoHS compliance status. PCB layout and circuit design require no modification.

Q: What is the difference between MIC1232M-TR and MIC1232MY-TR packaging?

A: MIC1232M-TR is supplied in tape & reel (TR) format, while MIC1232MY-TR is available in cut tape (CT) and Digi-Reel format. Both are surface mount 8-SOIC packages with identical physical dimensions (0.154", 3.90mm width). Packaging selection depends on assembly process requirements and procurement volume.

Q: Is TC1232COA suitable for all applications using MIC1232M-TR?

A: TC1232COA is suitable for applications operating within the 0°C to 70°C temperature range. If your design requires operation at temperatures below 0°C or above 70°C, TC1232COA is not recommended. MIC1232MY-TR or LTC1232IS8#PBF support the full -40°C to 85°C range.

Q: What is the significance of RoHS compliance differences?

A: MIC1232M-TR is RoHS non-compliant, while MIC1232MY-TR, TC1232COA, and LTC1232IS8#PBF are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the compliant alternatives are mandatory. Electrical performance is unaffected by RoHS status.

Q: Can LTC1232IS8#PBF from Analog Devices replace the Microchip MIC1232M-TR?

A: Yes. LTC1232IS8#PBF maintains all critical electrical parameters: single-channel voltage monitoring, 4.37V and 4.62V thresholds, 250ms reset timeout, open drain output, and -40°C to 85°C operating temperature. The cross-manufacturer substitution is electrically valid. Supplier device package designation (8-SO) differs from the original (8-SOIC), but physical dimensions and pin compatibility remain unchanged.

Q: Are there inventory or lead time advantages to using substitute parts?

A: Yes. MIC1232MY-TR has 1571 units in stock, TC1232COA has 8704 units, and LTC1232IS8#PBF has 1450 units available, compared to the discontinued MIC1232M-TR. Substitute parts offer improved procurement availability and shorter lead times for new designs and production restocking.