Texas Instruments LM3S5656

LM3S5656 variants from Texas Instruments

Variants

Mfr

Texas Instruments

Packages

QFN EP, LQFP (+1 more)

Lifecycle

Active

LM3S5656 Overview

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

Key Features

Footprint / package: QFN EP, LQFP, NFBGALand 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.
14 distinct suffix patternsExamples: EGZ50-C0, EQC50-C0, EQN80-C0T, EQR25-C0, EQR80-C0 (+9 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 14 LM3S5656 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
LM3S5656-EGZ50-C0	Package: QFN EP \| Mounting Type: Surface Mount \| Max Operating Temp: 105°C \| Min Operating Temp: -40°C	QFN EP	Texas Instruments	Active	Compliant	In Stock	RFQ
LM3S5656-EQC50-C0	Package: LQFP \| Mounting Type: Surface Mount \| Max Operating Temp: 105°C \| Min Operating Temp: -40°C	LQFP	Texas Instruments	Active	Compliant	In Stock	RFQ
LM3S5656-EQN80-C0T	Package: LQFP \| Mounting Type: Surface Mount \| Max Operating Temp: 105°C \| Min Operating Temp: -40°C	LQFP	Texas Instruments	Active	Compliant	In Stock	RFQ
LM3S5656-EQR25-C0	Package: LQFP \| Mounting Type: Surface Mount \| Max Operating Temp: 105°C \| Min Operating Temp: -40°C	LQFP	Texas Instruments	Active	Compliant	In Stock	RFQ
LM3S5656-EQR80-C0	Package: LQFP \| Mounting Type: Surface Mount \| Max Operating Temp: 105°C \| Min Operating Temp: -40°C	LQFP	Texas Instruments	Active	Compliant	In Stock	RFQ
LM3S5656-IBZ100-C0	Package: NFBGA \| Mounting Type: Surface Mount \| Max Operating Temp: 85°C \| Min Operating Temp: -40°C	NFBGA	Texas Instruments	Active	Compliant	In Stock	RFQ
LM3S5656-IBZ25-C0T	Package: NFBGA \| Mounting Type: Surface Mount \| Max Operating Temp: 85°C \| Min Operating Temp: -40°C	NFBGA	Texas Instruments	Active	Compliant	In Stock	RFQ
LM3S5656-IBZ50-C0T	Package: NFBGA \| Mounting Type: Surface Mount \| Max Operating Temp: 85°C \| Min Operating Temp: -40°C	NFBGA	Texas Instruments	Active	Compliant	In Stock	RFQ
LM3S5656-IGZ100-C0	Package: QFN EP \| Mounting Type: Surface Mount \| Max Operating Temp: 85°C \| Min Operating Temp: -40°C	QFN EP	Texas Instruments	Active	Compliant	In Stock	RFQ
LM3S5656-IQC100-C0T	Package: LQFP \| Mounting Type: Surface Mount \| Max Operating Temp: 85°C \| Min Operating Temp: -40°C	LQFP	Texas Instruments	Active	Compliant	In Stock	RFQ
LM3S5656-IQC50-C0T	Package: LQFP \| Mounting Type: Surface Mount \| Max Operating Temp: 85°C \| Min Operating Temp: -40°C	LQFP	Texas Instruments	Active	Compliant	In Stock	RFQ
LM3S5656-IQC80-C0T	Package: LQFP \| Mounting Type: Surface Mount \| Max Operating Temp: 85°C \| Min Operating Temp: -40°C	LQFP	Texas Instruments	Active	Compliant	In Stock	RFQ
LM3S5656-IQR20-C0T	Package: LQFP \| Mounting Type: Surface Mount \| Max Operating Temp: 85°C \| Min Operating Temp: -40°C	LQFP	Texas Instruments	Active	Compliant	In Stock	RFQ
LM3S5656-IQR25-C0T	Package: LQFP \| Mounting Type: Surface Mount \| Max Operating Temp: 85°C \| Min Operating Temp: -40°C	LQFP	Texas Instruments	Active	Compliant	In Stock	RFQ

Ordering Code Differences

How suffixes on LM3S5656 map to package, grade, and reel options.

How to Choose the Right LM3S5656 Microcontrollers

📦

Match the footprint first

Packages here: QFN EP, LQFP, NFBGA. Open the land-pattern drawing before you substitute a different suffix.

⚡

Electrical headroom

Compare voltage and current columns in the variant table. For LM3S5656, 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 "LM3S5656" — include the full suffix (e.g. EGZ50-C0, EQC50-C0, EQN80-C0T). RFQ with reel/tube preference and required date code.

Technical Specifications

Core parameters for LM3S5656 product family

Identity

Base Model

LM3S5656

Manufacturer

Texas Instruments

Series

Stellaris

Listed Variants

Variant Parameters

Package Type

QFN EP, LQFP, NFBGA

Lifecycle Status

Active

RoHS Status

Compliant

Source LM3S5656 with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 14 ordering variants from Texas Instruments. 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 Texas Instruments Browse all base models →

Frequently Asked Questions

Common technical questions about the LM3S5656 product family.

Is LM3S5656 a single part I can order, or a family prefix?

LM3S5656 is a base / family code from Texas Instruments. You order a full MPN such as LM3S5656-EGZ50-C0, LM3S5656-EQC50-C0, LM3S5656-EQN80-C0T. The variant table lists 14 orderable lines with different suffixes.

What do the suffix letters on LM3S5656 part numbers mean?

Listed suffix fragments include: EGZ50-C0, EQC50-C0, EQN80-C0T, EQR25-C0, EQR80-C0, IBZ100-C0. Typically they encode package (QFN EP, LQFP, NFBGA), temperature grade, and tape/reel option. Always decode on the Texas Instruments datasheet ordering guide — do not guess from pattern alone.

Which specs actually differ between LM3S5656 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 QFN EP, LQFP, NFBGA packages in the same LM3S5656 family?

Only after footprint and thermal review. Packages listed here (QFN EP, LQFP, NFBGA) 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 LM3S5656 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 LM3S5656?

Full manufacturer MPN (not just LM3S5656), 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.

Related Base Numbers

Related Series

Explore product families linked to this base-number page.