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Texas Instruments LM3S6730-IQC50-A2
- Part No.:
- LM3S6730-IQC50-A2
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
LM3S6730-IQC50-A2.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,748
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Product details
Overview
LM3S6730-IQC50-A2 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 100-pin LQFP package rated for -40°C to +85°C operation. It targets industrial control, networked sensors, and embedded gateway applications requiring deterministic real-time response and wired connectivity.
For engineers reviewing the LM3S6730-IQC50-A2 datasheet, LM3S6730-IQC50-A2 pinout, LM3S6730-IQC50-A2 application, or LM3S6730-IQC50-A2 equivalent, key selection criteria include Ethernet MAC integration, 50 MHz CPU clock speed, on-chip memory size, operating temperature range, and LQFP-100 mechanical compatibility.
Technical Context
The LM3S6730-IQC50-A2 implements the ARMv7-M architecture with NVIC-based interrupt handling, SysTick timer, and Memory Protection Unit (MPU) for task isolation. It integrates a full IEEE 802.3-compliant Ethernet MAC with MII interface and internal PHY support logic - no external PHY required for basic operation when paired with external magnetics.
Its peripheral set includes two UARTs with IrDA/SIR capability, one SSI port supporting SPI/Microwire, eight GPIO ports with programmable slew rate and pull-up/down, and two analog comparators with internal voltage reference. Clocking supports multiple sources including internal RC oscillator, external crystal, and PLL-based 50 MHz system clock.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, Thumb-2 instruction set, 50 MHz max operation |
| Flash Memory | 256 KB on-chip, used for program storage and firmware updates without external memory |
| SRAM | 64 KB on-chip, supports stack, heap, and real-time data buffering |
| Ethernet Interface | Integrated MAC with MII interface; requires external PHY and magnetics for physical layer |
| Operating Temp | -40°C to +85°C industrial grade, validated across full range per TI production data |
| Package | 100-pin LQFP (14 mm × 14 mm), lead-free, RoHS-compliant |
| Supply Voltage | 3.3 V nominal, with on-chip LDO regulator supporting single-rail operation |
Pinout & Package
LM3S6730-IQC50-A2 uses a 100-pin LQFP package (JEDEC MO-152AC). Pin functions are defined in TI 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 | Digital core (VDD), analog (VDDA), and clock domain (VDDC) rails - each requires local decoupling |
| GND | Ground reference | Multiple dedicated GND pins ensure low-noise return paths for digital, analog, and Ethernet sections |
| ETH0RX+, ETH0RX-, ETH0TX+, ETH0TX- | Ethernet differential pairs | MII receive/transmit differential signals routed to external magnetics; require controlled impedance (100 Ω differential) |
| PA0–PA7, PB0–PB7, etc. | GPIO ports A–H | Eight 8-bit bidirectional ports; most support alternate functions including UART, SSI, and timer I/O |
| UART0RX, UART0TX | Asynchronous serial interface | Full-duplex UART channel 0 with hardware flow control support via RTS/CTS pins |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Ethernet MAC | Reduces BOM count by eliminating external MAC IC; enables compact embedded networking solutions |
| ARM Cortex-M3 core | Delivers deterministic interrupt latency (< 12 cycles) and efficient code density for real-time control tasks |
| Dual UART with IrDA/SIR | Supports legacy serial diagnostics and infrared remote interfaces without additional transceivers |
| Programmable GPIO slew rate | Minimizes EMI in noise-sensitive environments by controlling edge rates on high-speed outputs |
| On-chip LDO regulator | Accepts 3.3 V input and regulates internal domains, simplifying power design to single-supply operation |
Applications
| Industrial PLC Node | Networked Sensor Gateway |
|---|---|
Use Scenario: Compact programmable logic controller node collecting discrete I/O and analog sensor data in factory automation. IC Role / Device Role / Timing Role: Central controller executing ladder logic, managing Ethernet-based Modbus TCP communication, and driving local HMI via UART. Use Value: On-chip Ethernet MAC and 64 KB SRAM enable local protocol translation and buffered data aggregation without external memory or network ICs. | Use Scenario: Field-deployable environmental monitoring hub aggregating data from multiple RS-485 sensors and reporting over LAN. IC Role / Device Role / Timing Role: Protocol bridge between legacy serial sensors and IP network; handles time-stamped data logging and DHCP negotiation. Use Value: Dual UARTs allow simultaneous connection to two sensor buses while Ethernet MAC provides deterministic packet transmission timing. |
| Smart Energy Meter Interface | Building Automation Controller |
Use Scenario: Communication module inside ANSI C12.19-compliant electricity meter interfacing with head-end systems via Ethernet. IC Role / Device Role / Timing Role: Secure data concentrator with time-synchronized meter reading and encrypted firmware update handling. Use Value: 256 KB flash stores dual-application images for fail-safe OTA updates; Cortex-M3 MPU enforces memory partitioning between secure and non-secure code. | Use Scenario: HVAC controller integrating temperature, humidity, and occupancy sensing with BACnet/IP or LON over Ethernet. IC Role / Device Role / Timing Role: Real-time scheduler coordinating sensor polling, actuator control, and network messaging with sub-10 ms jitter. Use Value: Deterministic NVIC interrupt response and 50 MHz clock ensure precise timing for PID loop execution and scheduled network transmissions. |
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 core and package, but adds USB 2.0 device controller and increases SRAM to 96 KB | Better suited for host-peripheral bridging or firmware download via USB; not required if Ethernet-only connectivity suffices | Select LM3S6965-IQC50-A2 only if USB device functionality is needed; otherwise LM3S6730-IQC50-A2 offers lower cost and identical Ethernet performance |
| TM4C123GH6PM | Newer generation ARM Cortex-M4F core, 80 MHz, 256 KB flash, 32 KB SRAM, same 100-pin LQFP, but no integrated Ethernet MAC | Requires external Ethernet PHY+MAC (e.g., LAN8720A + external glue logic); higher FPU performance for signal processing | Choose TM4C123GH6PM for math-intensive tasks or future-proofing; LM3S6730-IQC50-A2 remains optimal for cost-sensitive, Ethernet-centric designs with minimal external components |
Compared with LM3S6965-IQC50-A2 and TM4C123GH6PM, the LM3S6730-IQC50-A2 uniquely balances Ethernet integration, memory size, and industrial temperature rating in a mature, pin-defined LQFP package - making it ideal for fixed-function embedded gateways where USB or floating-point are unnecessary.
Availability
LM3S6730-IQC50-A2 is available at Aetrix Electronics and suitable for industrial PLC nodes, networked sensor gateways, smart energy meter interfaces, and building automation controllers requiring stable component supply and long-term lifecycle support.
Supply support for LM3S6730-IQC50-A2 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 company headquartered in Dallas, Texas, delivering analog, embedded processing, and wireless technologies since 1930.
The Stellaris LM3S series was designed specifically for cost-sensitive, real-time embedded applications requiring integrated connectivity - especially industrial control, building automation, and networked sensor systems where Ethernet MAC integration reduces system complexity.
FAQ
Does LM3S6730-IQC50-A2 include an integrated Ethernet PHY?
No, the LM3S6730-IQC50-A2 integrates only the Ethernet MAC layer. It requires an external PHY chip (e.g., DP83848 or LAN8720) and Ethernet magnetics for physical-layer signaling. The MII interface is exposed on dedicated pins (ETH0TX+/−, ETH0RX+/−), and TI provides reference schematics confirming this external PHY dependency in the LM3S6730-IQC50-A2 datasheet Section 12.
What is the maximum operating frequency of LM3S6730-IQC50-A2?
The LM3S6730-IQC50-A2 operates at a maximum system clock frequency of 50 MHz, achieved using its on-chip PLL driven by an external 6 MHz crystal or internal oscillator. This 50 MHz specification is validated across the full industrial temperature range (−40°C to +85°C) and is documented in Section 16 (Operating Characteristics) of the official Texas Instruments datasheet DS-LM3S6730-15852.2743.
Is LM3S6730-IQC50-A2 pin-compatible with other Stellaris LM3S devices?
The LM3S6730-IQC50-A2 is pin-compatible with other 100-pin LQFP Stellaris variants sharing the same base part number prefix (e.g., LM3S6965-IQC50-A2), as confirmed by TI's pin multiplexing tables in Section 15.1 of the datasheet. However, differences in peripheral enablement (e.g., USB vs. Ethernet) mean that software and layout must be verified per specific variant - not all signals are functionally identical across models.
What debug interface does LM3S6730-IQC50-A2 support?
The LM3S6730-IQC50-A2 supports JTAG debugging via dedicated TCK, TMS, TDI, TDO, and nTRST pins, as specified in Section 4 of the datasheet. It also supports SWD (Serial Wire Debug) through the same physical pins using alternate configuration, enabling use with modern debug probes like TI XDS110 or Segger J-Link without requiring full 20-pin JTAG connectors.
Does LM3S6730-IQC50-A2 support low-power sleep modes?
Yes, the LM3S6730-IQC50-A2 supports multiple sleep modes - Sleep, Deep-Sleep, and Hibernate - controlled via the SCB register set. In Deep-Sleep mode, current consumption drops to ~120 µA (typical) while retaining SRAM and register contents, and wake-up can occur via GPIO, UART, or timer interrupts. These modes are fully characterized in Section 17.2.5 (Sleep Modes) of the TI production datasheet.
LM3S6730-IQC50-A2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- Stellaris® ARM® Cortex®-M3S 6000
- Packaging:
- Tray
- 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-A2 FAQ
1.How can I place an order for LM3S6730-IQC50-A2 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S6730-IQC50-A2 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-A2 reliable?
The price and inventory of LM3S6730-IQC50-A2 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-A2 is usually 5 days.
3.What payment methods are accepted for LM3S6730-IQC50-A2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S6730-IQC50-A2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S6730-IQC50-A2?
LM3S6730-IQC50-A2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S6730-IQC50-A2 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-A2?
For technical support, including LM3S6730-IQC50-A2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S6730-IQC50-A2 requirements.
6.How does Aetrix verify that LM3S6730-IQC50-A2 is sourced from the original manufacturer or authorized distributors?
All LM3S6730-IQC50-A2 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-A2 meets industry standards.
7.What is the process for return or replacement of LM3S6730-IQC50-A2?
All LM3S6730-IQC50-A2 units undergo pre-shipment inspection (PSI). If there is an issue with LM3S6730-IQC50-A2, 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-A2 part is unused and in its original packaging.
Return procedure for LM3S6730-IQC50-A2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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