Microchip Technology PIC32MX

PIC32MX variants from Microchip Technology

PIC32MX Datasheet

Variants

120

Mfr

Microchip Technology

Packages

28-DIP (0.300", 7.62mm), 28-SOIC (0.295", 7.50mm Width) (+2 more)

Lifecycle

Active

PIC32MX Overview

What changes between part numbers, and what to check before you lock the BOM — Microcontrollers.

PIC32MX is a Microchip Technology order-code family — not a single orderable MPN. This page lists 120 variants that share the same core device but differ in suffix fields (package, grade, reel/tube, electrical bin, etc.). Pick the exact full part number; substituting within the family without checking the datasheet often causes assembly or spec mismatches.

| Official Price: 3.7700 | Official Product URL: https://www.microchip.com/en-us/product/PIC32MX154F128B Other listed variants describe: | Official Price: 4.0100 | Official Product URL: https://www.microchip.com/en-us/product/PIC32MX154F128D; | Official Price: 4.0000 | Official Product URL: https://www.microchip.com/en-us/product/PIC32MX174F256B.

Across listed variants, watch these parameters: packages: 28-DIP (0.300", 7.62mm), 28-SOIC (0.295", 7.50mm Width), 44-TQFP, 64-TQFP.

Suffix examples in this family: 154F128B, 154F128D, 174F256B, 174F256D, 254F128B, 254F128D, 274F256B, 274F256D. The characters after the base number usually encode package, temperature, or performance grade — compare the variant table column-by-column rather than assuming pin-compatible drops-in.

Columns that actually vary on this page: Package Type. If two rows match on MPN prefix but differ there, they are not interchangeable for production.

Example MPNs: PIC32MX154F128B, PIC32MX154F128D, PIC32MX174F256B, PIC32MX174F256D, PIC32MX254F128B, PIC32MX254F128D.

Key Features

Footprint / package: 28-DIP (0.300", 7.62mm), 28-SOIC (0.295", 7.50mm Width), 44-TQFP, 64-TQFPLand pattern and thermal pad differ between these packages — run a quick footprint check before you swap variants.
Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
120 distinct suffix patternsExamples: 154F128B, 154F128D, 174F256B, 174F256D, 254F128B (+115 more). Decode suffix meaning in the ordering notes under the variant table.

Target Applications

Microcontrollers — design-in and field replacement
BOM scrub where only the base prefix is known but suffix is TBD
Second-source checks when the original MPN is constrained

Ordering Variants

Compare 120 PIC32MX part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.

Part Number	Description	Package Type	Manufacturer	Lifecycle	RoHS	Availability	Action
PIC32MX154F128B	\| Official Price: 3.7700 \| Official Product URL: https://www.microchip.com/en-us/product/PIC32MX154F128B	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX154F128D	\| Official Price: 4.0100 \| Official Product URL: https://www.microchip.com/en-us/product/PIC32MX154F128D	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX174F256B	\| Official Price: 4.0000 \| Official Product URL: https://www.microchip.com/en-us/product/PIC32MX174F256B	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX174F256D	\| Official Price: 4.2400 \| Official Product URL: https://www.microchip.com/en-us/product/PIC32MX174F256D	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX254F128B	\| Official Price: 4.0500 \| Official Product URL: https://www.microchip.com/en-us/product/PIC32MX254F128B	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX254F128D	\| Official Price: 4.2900 \| Official Product URL: https://www.microchip.com/en-us/product/PIC32MX254F128D	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX274F256B	\| Official Price: 4.2800 \| Official Product URL: https://www.microchip.com/en-us/product/PIC32MX274F256B	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX274F256D	\| Official Price: 4.5300 \| Official Product URL: https://www.microchip.com/en-us/product/PIC32MX274F256D	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX130F064B-I/SP	IC MCU 32BIT 64KB FLASH 28SPDIP	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX130F128H-50I/PT	IC MCU 32BIT 128KB FLASH 64TQFP	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX130F256B-I/ML	IC MCU 32BIT 256KB FLASH 28QFN	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX130F256D-50I/PT	IC MCU 32BIT 256KB FLASH 44TQFP	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX130F256D-I/ML	IC MCU 32BIT 256KB FLASH 44QFN	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX130F256D-I/PT	IC MCU 32BIT 256KB FLASH 44TQFP	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX150F128D-I/PT	IC MCU 32BIT 128KB FLASH 44TQFP	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX170F256B-50I/SP	IC MCU 32BIT 256KB FLASH 28SPDIP	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX170F256B-I/SP	Package: 28-DIP (0.300", 7.62mm) \| Mounting Type: Through Hole \| Operating Temperature: -40°C ~ 85°C (TA) \| Supplier Device Package: 28-SPDIP \| Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT \| Number of I O: 21	28-DIP (0.300", 7.62mm)	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX170F256B-I/SS	IC MCU 32BIT 256KB FLASH 28SSOP	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX170F256B-V/SS	IC MCU 32BIT 256KB FLASH 28SSOP	-	Microchip Technology	Active	Compliant	In Stock	RFQ
PIC32MX170F256D-50I/ML	IC MCU 32BIT 256KB FLASH 44QFN	-	Microchip Technology	Active	Compliant	In Stock	RFQ

Ordering Code Differences

How suffixes on PIC32MX map to package, grade, and reel options.

PIC32MX uses a shared prefix; characters after the prefix encode orderable options. Two lines with the same prefix are not drop-in replacements unless the differing columns match your need.

Suffixes seen here: 154F128B, 154F128D, 174F256B, 174F256D, 254F128B, 254F128D, 274F256B, 274F256D, 130F064B-I/SP, 130F128H-50I/PT (+110 more).

What changes between rows: Package Type. Sort the table by these columns when narrowing from base number to a single MPN.

Full MPN examples: PIC32MX154F128B, PIC32MX154F128D, PIC32MX174F256B, PIC32MX174F256D, PIC32MX254F128B.

Tip: photograph or copy the reel label — reel diameter, QTY per reel, and moisture sensitivity level (MSL) are often suffix-driven and won't show in the schematic.

How to Choose the Right PIC32MX Microcontrollers

📦

Match the footprint first

Packages here: 28-DIP (0.300", 7.62mm), 28-SOIC (0.295", 7.50mm Width), 44-TQFP, 64-TQFP. Open the land-pattern drawing before you substitute a different suffix.

⚡

Electrical headroom

Compare voltage and current columns in the variant table. For PIC32MX, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.

🌡️

Temp grade letter matters

Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.

🔢

Copy the full MPN

Do not BOM only "PIC32MX" — include the full suffix (e.g. 154F128B, 154F128D, 174F256B). RFQ with reel/tube preference and required date code.

Technical Specifications

Core parameters for PIC32MX product family

Identity

Base Model

PIC32MX

Manufacturer

Microchip Technology

Series

PIC® 32MX

Listed Variants

120

Variant Parameters

Package Type

28-DIP (0.300", 7.62mm), 28-SOIC (0.295", 7.50mm Width), 44-TQFP, 64-TQFP

Lifecycle Status

Active

RoHS Status

Compliant

Source PIC32MX with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 120 ordering variants from Microchip Technology. Our team supports active, EOL, and hard-to-find component sourcing.

Original manufacturer parts with traceability options
BOM upload and multi-line RFQ support
Package, grade, and compliance verification

Request Quote View Microchip Technology Browse all base models →

Frequently Asked Questions

Common technical questions about the PIC32MX product family.

Is PIC32MX a single part I can order, or a family prefix?

PIC32MX is a base / family code from Microchip Technology. You order a full MPN such as PIC32MX154F128B, PIC32MX154F128D, PIC32MX174F256B. The variant table lists 120 orderable lines with different suffixes.

What do the suffix letters on PIC32MX part numbers mean?

Listed suffix fragments include: 154F128B, 154F128D, 174F256B, 174F256D, 254F128B, 254F128D. Typically they encode package (28-DIP (0.300", 7.62mm), 28-SOIC (0.295", 7.50mm Width), 44-TQFP, 64-TQFP), temperature grade, and tape/reel option. Always decode on the Microchip Technology datasheet ordering guide — do not guess from pattern alone.

Which specs actually differ between PIC32MX variants here?

On this page the varying fields are: Package Type. Filter the table by the parameter you care about before picking an MPN.

Can I swap between 28-DIP (0.300", 7.62mm), 28-SOIC (0.295", 7.50mm Width), 44-TQFP, 64-TQFP packages in the same PIC32MX family?

Only after footprint and thermal review. Packages listed here (28-DIP (0.300", 7.62mm), 28-SOIC (0.295", 7.50mm Width), 44-TQFP, 64-TQFP) use different land patterns and often different thermal resistance. Layout swaps need a new paste stencil at minimum, not just a BOM edit.

What is the lifecycle status of PIC32MX variants?

Lifecycle values in our listing: Active. Status is per MPN suffix — one variant can be Active while another is NRND. Check PCN for your exact suffix before multi-year commitments.

What should I send for an RFQ on PIC32MX?

Full manufacturer MPN (not just PIC32MX), quantity, needed date code, reel vs tube, and any compliance docs (CoC, RoHS, conflict minerals). If you only know the base prefix, include a photo of the existing label or reel.

Where is the PIC32MX datasheet?

Use the datasheet link in the page header. Cross-check electrical curves (SOA, saturation voltage, etc.) against your operating point — the table summarizes order codes, not every graph in the PDF.