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Texas Instruments LM3S6730-IBZ50-A2
- Part No.:
- LM3S6730-IBZ50-A2
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 108-LFBGA
- Datasheet:
-
LM3S6730-IBZ50-A2.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 108BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,279
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Product details
Overview
LM3S6730-IBZ50-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 GPIOs in a 100-pin LQFP package. It operates at 50 MHz and supports industrial motor control, networked sensor nodes, and embedded gateway applications.
For engineers reviewing the LM3S6730-IBZ50-A2 datasheet, LM3S6730-IBZ50-A2 pinout, LM3S6730-IBZ50-A2 application, or LM3S6730-IBZ50-A2 equivalent, key selection criteria include Ethernet MAC integration, 50 MHz operation, 100-pin LQFP footprint, flash/SRAM size, and peripheral set including dual UARTs and SSI for industrial connectivity.
Technical Context
The LM3S6730-IBZ50-A2 implements the ARM Cortex-M3 core with NVIC, SysTick, and MPU, supporting Thumb-2 instruction set and deterministic interrupt latency down to 12 cycles. It integrates a full Ethernet MAC (no external PHY required), two UARTs with IrDA support, and an SSI controller compatible with SPI, Microwire, and TI synchronous serial protocols.
Its analog subsystem includes two independent comparators with internal voltage reference and interrupt capability. Clock management supports multiple PLL configurations, internal RC oscillator, and external crystal up to 25 MHz, enabling precise timing control for real-time industrial tasks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, Thumb-2 instruction set, 50 MHz max operation |
| Memory | 256 KB on-chip flash (programmable in 1 KB sectors), 64 KB SRAM |
| Ethernet | Integrated IEEE 802.3-compliant MAC with MII interface; requires external PHY |
| Serial Interfaces | 2 × UART (with IrDA, FIFO, and modem control), 1 × SSI (SPI/Microwire/TI sync) |
| Analog | 2 × analog comparators with internal 2.5 V reference and interrupt output |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant |
| Operating Temp | –40°C to +85°C (Industrial grade), specified for continuous operation |
Pinout & Package
LM3S6730-IBZ50-A2 is housed in a 100-pin LQFP package with exposed thermal pad. 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 | Digital core (VDDC), analog (VDDA), and I/O (VDD) rails; require separate 3.3 V filtering |
| GND, GNDA, GNDC | Ground returns | Analog (GNDA), core (GNDC), and I/O (GND) grounds must be star-connected near device |
| ETH0_RMII_RX0 / PA0 | Ethernet receive data | RMII mode input for Ethernet frame reception; shares GPIO function PA0 |
| UART0_TX / PA1 | Primary UART transmit | Default TX output for UART0; configurable as GPIO or alternate peripheral function |
| SSI0_CLK / PA2 | Synchronous serial clock | Master or slave clock output/input for SSI0; supports up to 25 MHz operation |
| COMP0_OUT / PB0 | Analog comparator 0 output | Open-drain digital output indicating comparator state; can trigger interrupts or drive logic |
Key Features
| Feature | Design Value |
|---|---|
| Ethernet MAC integration | Reduces BOM count by eliminating external MAC IC; interfaces directly to standard PHY via MII/RMII |
| Dual UART with IrDA | Enables simultaneous RS-232 debug port and IR remote interface without external transceivers |
| Programmable internal voltage reference | 2.5 V reference for analog comparators eliminates need for external precision reference IC |
| Flash programming via serial loader | Supports field firmware updates over UART or SSI without JTAG debugger |
| MPU and NVIC | Enables memory protection and prioritized interrupt handling for safety-critical real-time tasks |
Applications
| Industrial Motor Control | Networked Sensor Gateway |
|---|---|
Use Scenario: Closed-loop control of BLDC motors using PWM outputs, current sensing, and position feedback. IC Role / Device Role / Timing Role: Real-time execution host with deterministic interrupt response, PWM generation, and analog comparator-based fault detection. Use Value: Integrated comparators enable fast overcurrent shutdown (<1 µs response), while Ethernet MAC allows direct connection to factory LAN for diagnostics and parameter updates. | Use Scenario: Aggregation and protocol translation of Modbus RTU, CAN, and analog sensor data to Ethernet/IP or MQTT. IC Role / Device Role / Timing Role: Protocol bridge and edge processing node with dual UARTs for legacy bus interfacing and Ethernet MAC for upstream communication. Use Value: On-chip SSI and UART peripherals eliminate external level shifters and bus transceivers; 64 KB SRAM buffers multi-sensor payloads before transmission. |
| Building Automation Controller | Embedded Web Server Node |
Use Scenario: HVAC zone controller managing temperature, humidity, and damper actuation via analog inputs and relay outputs. IC Role / Device Role / Timing Role: System-on-chip controller running real-time scheduler with Ethernet for BACnet/IP or LON over IP transport. Use Value: 256 KB flash stores full BACnet stack and web UI assets; integrated MAC enables direct HTTP server hosting without external networking IC. | Use Scenario: Standalone web-enabled device serving configuration pages, status dashboards, and firmware update portals. IC Role / Device Role / Timing Role: Embedded HTTP server host with TCP/IP stack execution and Ethernet packet handling in firmware. Use Value: Deterministic Ethernet MAC timing and 50 MHz CPU allow concurrent web serving and sensor polling without external co-processor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3S6965-IBZ50-A2 | Same core and package, but adds USB 2.0 OTG controller and increases SRAM to 96 KB | Required when USB device/host functionality or larger RAM buffer is needed for protocol stacks | Select LM3S6965-IBZ50-A2 only if USB interface or >64 KB RAM is mandatory; otherwise LM3S6730-IBZ50-A2 offers lower cost and identical Ethernet/UART/SSI feature set |
| TM4C123GH6PM | Newer ARM Cortex-M4F core, 80 MHz, 256 KB flash, 32 KB SRAM, no integrated Ethernet MAC (requires external PHY + MAC or external Ethernet controller) | Preferred for floating-point math or higher performance; Ethernet requires additional components | Choose TM4C123GH6PM for new designs needing FPU or future roadmap alignment; LM3S6730-IBZ50-A2 remains optimal for cost-sensitive, Ethernet-integrated legacy-compatible designs |
Compared with LM3S6965-IBZ50-A2 and TM4C123GH6PM, the LM3S6730-IBZ50-A2 uniquely delivers integrated Ethernet MAC in a mature, production-qualified Cortex-M3 platform-enabling single-chip wired connectivity without USB overhead or external MAC complexity.
Availability
LM3S6730-IBZ50-A2 is available at Aetrix Electronics and suitable for industrial motor control, networked sensor gateways, building automation controllers, and embedded web server nodes requiring stable component supply and long-term industrial temperature support.
Supply support for LM3S6730-IBZ50-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 industrial and automation applications requiring integrated connectivity, deterministic timing, and robust peripheral sets-including Ethernet MAC, analog comparators, and motor control peripherals.
FAQ
What is the maximum operating frequency of the LM3S6730-IBZ50-A2?
The LM3S6730-IBZ50-A2 operates at a maximum system clock frequency of 50 MHz, achieved via its internal PLL driven by an external crystal (up to 25 MHz) or internal oscillator. This frequency is fully supported across the entire industrial temperature range (–40°C to +85°C) and is specified in the Electrical Characteristics section of the TI SPMS137I datasheet.
Does the LM3S6730-IBZ50-A2 include an integrated Ethernet PHY?
No, the LM3S6730-IBZ50-A2 integrates only the Ethernet MAC layer compliant with IEEE 802.3. An external PHY chip (e.g., DP83848) is required for physical layer signaling, connected via MII or RMII interface. The LM3S6730-IBZ50-A2 provides all MAC registers, DMA, and descriptor management in silicon.
What debug interfaces does the LM3S6730-IBZ50-A2 support?
The LM3S6730-IBZ50-A2 supports JTAG debugging via dedicated TCK, TMS, TDI, TDO, and TRST pins, as documented in Section 4 of the SPMS137I datasheet. It also supports SWD (Serial Wire Debug) through the same JTAG pins when configured appropriately, enabling compatibility with modern debug probes like TI XDS100v3 and CMSIS-DAP adapters.
Can the LM3S6730-IBZ50-A2 run standalone without external memory?
Yes, the LM3S6730-IBZ50-A2 contains 256 KB of on-chip flash and 64 KB of SRAM, sufficient to execute full protocol stacks (e.g., TCP/IP, Modbus TCP) and application firmware without external memory. Its memory map is fixed and managed entirely within the device, with no external bus interface provided.
Is the LM3S6730-IBZ50-A2 pin-compatible with other LM3S devices in the same package?
LM3S6730-IBZ50-A2 is pin-compatible with other LM3S6x30 variants (e.g., LM3S6130, LM3S6630) in the 100-pin LQFP package, sharing identical pinout, power, and reset configurations. However, peripheral enablement and alternate function mapping differ between models; firmware must be validated per specific part number.
LM3S6730-IBZ50-A2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 108-LFBGA
- Series:
- Stellaris® ARM® Cortex®-M3S 6000
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not 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-IBZ50-A2 FAQ
1.How can I place an order for LM3S6730-IBZ50-A2 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S6730-IBZ50-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-IBZ50-A2 reliable?
The price and inventory of LM3S6730-IBZ50-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-IBZ50-A2 is usually 5 days.
3.What payment methods are accepted for LM3S6730-IBZ50-A2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S6730-IBZ50-A2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S6730-IBZ50-A2?
LM3S6730-IBZ50-A2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S6730-IBZ50-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-IBZ50-A2?
For technical support, including LM3S6730-IBZ50-A2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S6730-IBZ50-A2 requirements.
6.How does Aetrix verify that LM3S6730-IBZ50-A2 is sourced from the original manufacturer or authorized distributors?
All LM3S6730-IBZ50-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-IBZ50-A2 meets industry standards.
7.What is the process for return or replacement of LM3S6730-IBZ50-A2?
All LM3S6730-IBZ50-A2 units undergo pre-shipment inspection (PSI). If there is an issue with LM3S6730-IBZ50-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-IBZ50-A2 part is unused and in its original packaging.
Return procedure for LM3S6730-IBZ50-A2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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