My Inquiry
My Account
Texas Instruments LM3S6730-IQC50-A2T
- Part No.:
- LM3S6730-IQC50-A2T
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
LM3S6730-IQC50-A2T.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,528
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM3S6730-IQC50-A2T from Texas Instruments is a 32-bit ARM Cortex-M3 microcontroller with 256 KB flash, 64 KB SRAM, integrated Ethernet MAC, dual UARTs, SSI, analog comparators, and GPIOs in a 100-pin LQFP package. It operates at 50 MHz and supports industrial temperature range (–40°C to +85°C), targeting embedded control with network connectivity.
For engineers reviewing the LM3S6730-IQC50-A2T datasheet, LM3S6730-IQC50-A2T pinout, LM3S6730-IQC50-A2T application, or LM3S6730-IQC50-A2T equivalent, key selection criteria include Ethernet MAC integration, 50 MHz Cortex-M3 performance, 100-pin LQFP footprint, industrial-grade thermal rating, and StellarisWare® software support for rapid firmware development.
Technical Context
The LM3S6730-IQC50-A2T implements the ARMv7-M architecture with NVIC, SysTick, MPU, and debug interfaces (JTAG/SWD). Its system-level design integrates a dedicated Ethernet MAC controller compliant with IEEE 802.3, supporting MII interface and internal PHY management registers.
Peripherals include two UARTs with FIFO and IrDA support, one SSI module compatible with SPI/Microwire, four general-purpose timers (including RTC mode), and two analog comparators with programmable reference. Clocking is managed via PLL-based system clock generation from internal or external sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, 50 MHz max operation - enables deterministic real-time control with Thumb-2 instruction set efficiency. |
| Memory | 256 KB on-chip flash + 64 KB SRAM - sufficient for standalone Ethernet-enabled firmware without external memory. |
| Ethernet Interface | Integrated IEEE 802.3-compliant MAC with MII support - eliminates need for external MAC/PHY chip in basic wired network nodes. |
| Timers | 4x 32/16-bit GPTMs + 1x watchdog - supports motor control timing, PWM generation, and system supervision. |
| Serial Interfaces | 2x UART (with IrDA/SIR), 1x SSI - enables legacy RS-232, sensor SPI, and infrared communication simultaneously. |
| Operating Temp | –40°C to +85°C - qualified for industrial automation, building control, and outdoor embedded systems. |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - standard surface-mount footprint compatible with automated PCB assembly. |
Pinout & Package
LM3S6730-IQC50-A2T uses a 100-pin LQFP package (JEDEC MO-219AB), with exposed thermal pad for enhanced heat dissipation in continuous operation. Pin functions are defined per TI SPMS137I datasheet Section 14 (Pin Diagram) and Section 15.1 (100-Pin LQFP Signal Tables).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Dedicated domains for digital core (VDDC), analog (VDDA), and I/O (VDD) - enable noise isolation and flexible power sequencing. |
| PD0–PD7, PE0–PE5, PF0–PF4, PG0–PG7, PH0–PH7, PK0–PK7 | GPIO banks | Eight configurable GPIO ports with alternate functions - support multiplexed peripheral signals including UART0/1, SSI0, and Ethernet MII lines. |
| RMII_RX0, RMII_RX1, RMII_CRS_DV, RMII_TXEN, RMII_TX0, RMII_TX1, RMII_REFCLK | Ethernet MII/RMII interface | Direct connection to external PHY in Reduced MII mode - reduces pin count vs full MII while maintaining 10/100 Mbps capability. |
| U0RX, U0TX, U1RX, U1TX | UART serial I/O | Dual asynchronous serial channels - allow simultaneous host debugging (UART0) and device-to-device communication (UART1). |
| SSI0CLK, SSI0FSS, SSI0RX, SSI0TX | Synchronous serial interface | Full-duplex SPI-compatible master/slave port - interfaces with sensors, ADCs, or display controllers requiring precise clocked data transfer. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Ethernet MAC | IEEE 802.3-compliant hardware MAC with 4-KB packet buffer - offloads frame processing from CPU and enables deterministic network response. |
| StellarisWare® Peripheral Driver Library | Production-ready C APIs for all on-chip peripherals - accelerates firmware development and ensures register-level correctness across UART, SSI, timers, and GPIO. |
| Programmable Analog Comparators | Two independent comparators with selectable internal voltage reference (1.65 V or 2.5 V) - enable threshold detection for analog sensor monitoring without external components. |
| Low-Power Sleep Modes | Three sleep modes (sleep/deep-sleep/power-down) with wake-on-GPIO/UART/SSI - extends battery life in intermittently active networked edge devices. |
| JTAG + SWD Debug Support | Standard ARM debug interface with boundary scan and real-time trace - simplifies validation, field diagnostics, and firmware updates in deployed systems. |
Applications
| Industrial Ethernet Node | Building Automation Controller |
|---|---|
Use Scenario: Standalone PLC I/O module communicating over wired Ethernet to SCADA systems. IC Role / Device Role / Timing Role: Central controller executing real-time logic, managing Ethernet packet handling, and driving discrete I/O via GPIO. Use Value: Integrated MAC eliminates external PHY cost and layout complexity while delivering deterministic 10/100 Mbps throughput for Modbus TCP or EtherNet/IP. | Use Scenario: HVAC zone controller collecting temperature/humidity data and actuating valves/fans via relay outputs. IC Role / Device Role / Timing Role: Sensor fusion hub with analog comparator inputs, UART for BACnet MS/TP, and Ethernet for building-wide integration. Use Value: Dual UARTs enable concurrent local fieldbus and upstream IP network communication; internal comparators reduce component count for analog threshold alarms. |
| Networked Motor Drive | Remote Data Logger |
Use Scenario: Brushless DC motor controller with speed feedback, fault monitoring, and remote configuration via Ethernet. IC Role / Device Role / Timing Role: Real-time motion controller using GPTM-generated PWM and Ethernet for parameter upload/download. Use Value: 50 MHz Cortex-M3 delivers sub-microsecond interrupt latency for current-loop control; integrated timers support precise PWM phase alignment. | Use Scenario: Environmental sensor node logging temperature, pressure, and humidity to SD card or cloud via Ethernet. IC Role / Device Role / Timing Role: Data acquisition engine with analog comparator triggers, UART for sensor polling, and Ethernet for bulk upload. Use Value: 64 KB SRAM buffers extended measurement sequences; flash endurance supports years of firmware updates in unattended deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3S6965-IQC50-A2 | Same Cortex-M3 core, 256 KB flash, 64 KB SRAM, but adds USB 2.0 OTG controller and removes Ethernet MAC. | Better suited for USB-hosted human interface devices; lacks native Ethernet for wired infrastructure integration. | Select when USB device/host capability is prioritized over wired LAN connectivity. |
| TM4C123GH6PM | Successor family with same pinout compatibility, 32 KB SRAM (vs 64 KB), added CAN, higher flash endurance, and updated StellarisWare → TivaWare™ migration path. | Supports automotive diagnostics (CAN) and longer product lifecycle; requires firmware adaptation due to peripheral register changes. | Choose for new designs needing CAN or extended longevity; not drop-in for existing LM3S6730 layouts due to SRAM reduction and register-level differences. |
Compared with LM3S6730-IQC50-A2T, LM3S6965-IQC50-A2 trades Ethernet for USB, limiting networked control use cases, while TM4C123GH6PM offers modernized peripherals and lifecycle support but requires software revalidation and accepts reduced SRAM for broader feature set.
Availability
LM3S6730-IQC50-A2T is available at Aetrix Electronics and suitable for industrial automation, building control, and networked motor drive applications requiring stable component supply, long-term obsolescence planning, and verified production-grade silicon.
Supply support for LM3S6730-IQC50-A2T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of experience in high-reliability microcontrollers and industrial-grade signal chains.
The Stellaris LM3S series was designed specifically for cost-sensitive, Ethernet-connected embedded control applications where integrated MAC, deterministic real-time performance, and broad peripheral integration reduce system BOM and board space.
FAQ
What is the maximum operating frequency of the LM3S6730-IQC50-A2T?
The LM3S6730-IQC50-A2T operates at a maximum system clock frequency of 50 MHz, achieved via its internal PLL that multiplies an external crystal or oscillator input. This frequency is specified under industrial temperature conditions (–40°C to +85°C) and supports deterministic real-time execution of control algorithms and Ethernet packet processing in the LM3S6730-IQC50-A2T.
Does the LM3S6730-IQC50-A2T include an integrated Ethernet PHY?
No, the LM3S6730-IQC50-A2T integrates only the Ethernet MAC layer compliant with IEEE 802.3. It requires an external PHY chip connected via MII or RMII interface. The LM3S6730-IQC50-A2T provides all necessary MAC registers, packet buffers, and timing control - but physical layer signaling (e.g., 10BASE-T/100BASE-TX) must be handled externally.
What development tools are officially supported for the LM3S6730-IQC50-A2T?
Texas Instruments officially supports Keil MDK-ARM, IAR Embedded Workbench, and GCC-based toolchains (e.g., Sourcery CodeBench) for the LM3S6730-IQC50-A2T. StellarisWare® peripheral driver library and evaluation boards like EK-LM3S6965 are validated for this part, enabling rapid prototyping and production firmware deployment on the LM3S6730-IQC50-A2T.
Is the LM3S6730-IQC50-A2T pin-compatible with other Stellaris LM3S devices?
The LM3S6730-IQC50-A2T shares the same 100-pin LQFP footprint with several LM3S devices (e.g., LM3S6965), but pin functions differ significantly - especially for Ethernet, USB, and analog peripherals. While mechanical mounting is identical, electrical compatibility requires verification of signal mapping per TI SPMS137I datasheet; the LM3S6730-IQC50-A2T is not a direct replacement without schematic and firmware review.
What is the flash endurance specification for the LM3S6730-IQC50-A2T?
The LM3S6730-IQC50-A2T specifies 10,000 write/erase cycles for its 256 KB on-chip flash memory, as documented in Section 17.1.6 of the SPMS137I datasheet. This endurance rating applies under recommended operating conditions and supports field firmware updates and configuration storage throughout typical industrial equipment lifecycles.
LM3S6730-IQC50-A2T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- Stellaris® ARM® Cortex®-M3S 6000
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- Ethernet, IrDA, Microwire, SPI, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 46
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.25V ~ 2.75V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LM3S6730-IQC50-A2T FAQ
1.How can I place an order for LM3S6730-IQC50-A2T through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S6730-IQC50-A2T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM3S6730-IQC50-A2T reliable?
The price and inventory of LM3S6730-IQC50-A2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3S6730-IQC50-A2T is usually 5 days.
3.What payment methods are accepted for LM3S6730-IQC50-A2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S6730-IQC50-A2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S6730-IQC50-A2T?
LM3S6730-IQC50-A2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S6730-IQC50-A2T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM3S6730-IQC50-A2T?
For technical support, including LM3S6730-IQC50-A2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S6730-IQC50-A2T requirements.
6.How does Aetrix verify that LM3S6730-IQC50-A2T is sourced from the original manufacturer or authorized distributors?
All LM3S6730-IQC50-A2T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM3S6730-IQC50-A2T meets industry standards.
7.What is the process for return or replacement of LM3S6730-IQC50-A2T?
All LM3S6730-IQC50-A2T units undergo pre-shipment inspection (PSI). If there is an issue with LM3S6730-IQC50-A2T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM3S6730-IQC50-A2T part is unused and in its original packaging.
Return procedure for LM3S6730-IQC50-A2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM3S6730-IQC50-A2T Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
