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Texas Instruments LM3S6100-EQC25-A2T
- Part No.:
- LM3S6100-EQC25-A2T
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
LM3S6100-EQC25-A2T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,074
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Product details
Overview
LM3S6100-EQC25-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 comparator, and GPIOs in 100-pin LQFP package. It operates at up to 50 MHz and supports industrial motor control, networked sensors, and embedded gateway applications.
For engineers reviewing the LM3S6100-EQC25-A2T datasheet, LM3S6100-EQC25-A2T pinout, LM3S6100-EQC25-A2T application, or LM3S6100-EQC25-A2T equivalent, key selection criteria include Ethernet MAC integration, 50 MHz Cortex-M3 performance, 100-pin LQFP footprint, flash/SRAM size, and peripheral set alignment with real-time industrial connectivity requirements.
Technical Context
The LM3S6100-EQC25-A2T implements the ARMv7-M architecture with NVIC, SysTick, MPU, and debug support via JTAG. 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.
Peripherals include two UARTs (one with IrDA/SIR), one SSI port, eight general-purpose timers (including RTC mode), watchdog timer, and an analog comparator with programmable reference. All peripherals are memory-mapped and accessible via APB bus with configurable clock gating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, up to 50 MHz - enables deterministic real-time execution with <12-cycle interrupt latency. |
| Flash Memory | 256 KB on-chip, single-cycle access - sufficient for bootloader + application firmware with OTA update partitioning. |
| SRAM | 64 KB on-chip, zero-wait-state - supports real-time data buffering, TCP/IP stack, and Ethernet frame handling. |
| Ethernet Interface | Integrated MAC with MII pins - eliminates need for external MAC IC; requires external PHY and magnetics for physical layer. |
| UARTs | 2 × UART with FIFO, IrDA/SIR support - enables simultaneous host debugging and serial device communication. |
| Timers | 8 × 16/32-bit GPTMs, including RTC mode - provides precise timekeeping, PWM generation, and input capture for motor feedback. |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) - compatible with standard surface-mount assembly and manual rework. |
Pinout & Package
LM3S6100-EQC25-A2T uses a 100-pin LQFP package (JEDEC MO-152AC). Pin assignments are defined per TI SPMS107I 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) - require separate decoupling for noise isolation. |
| ETH0_RX+, ETH0_RX−, ETH0_TX+, ETH0_TX− | Ethernet differential pairs | MII receive/transmit signals - routed as controlled-impedance differential traces (100 Ω) to external PHY/magnetics. |
| UART0_Rx, UART0_Tx | Asynchronous serial interface | Primary debug interface - connects directly to USB-to-UART bridge (e.g., CP2102) without level shifting. |
| SSI0_CLK, SSI0_FSS, SSI0_RX, SSI0_TX | Synchronous serial interface | Full-duplex SPI-compatible port - supports daisy-chained sensors or display controllers with hardware chip select. |
| GPIO_A0–A7, B0–B7, etc. | Configurable digital I/O | Multi-function pins with slew-rate control and weak pull-up/down - usable as interrupts, PWM outputs, or bit-banged protocols. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Ethernet MAC | IEEE 802.3-compliant MAC with MII interface - reduces BOM count and PCB area vs. discrete MAC+PHY solutions. |
| ARM Cortex-M3 Core | Hardware divide, Thumb-2 instruction set, and NVIC with 32 priority levels - delivers high code density and low-latency interrupt response. |
| Memory Protection Unit (MPU) | 8-region MPU with subregion disable - enables safe partitioning of application and RTOS tasks in safety-critical firmware. |
| On-chip Flash Programming | Field-upgradable via UART or JTAG - supports in-system programming without external programmer hardware. |
| Dual UART with IrDA/SIR | One UART supports infrared modulation/demodulation - enables contactless configuration and diagnostics in sealed enclosures. |
Applications
| Industrial Ethernet Gateway | Motor Control Node |
|---|---|
Use Scenario: Protocol translation between Modbus RTU field devices and EtherNet/IP backbone. IC Role / Device Role / Timing Role: Central protocol handler and real-time packet scheduler using integrated Ethernet MAC and dual UARTs. Use Value: Eliminates external MAC and reduces latency by executing protocol stack in on-chip SRAM with deterministic Cortex-M3 timing. |
Use Scenario: Closed-loop BLDC motor control with Hall-effect sensor feedback and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Real-time controller managing commutation timing, current sensing, and fault shutdown via GPIO and timers. Use Value: Eight GPTMs provide independent PWM channels and input capture for precise rotor position tracking at 50 MHz core speed. |
| Networked Sensor Hub | Embedded Web Server |
Use Scenario: Aggregating temperature, humidity, and vibration data from I²C/SPI sensors and serving over HTTP. IC Role / Device Role / Timing Role: Data concentrator with Ethernet MAC, SSI, and analog comparator for threshold-triggered alerts. Use Value: On-chip 256 KB flash stores web pages and firmware; 64 KB SRAM buffers sensor data and TCP/IP stack state. |
Use Scenario: Standalone web interface for HVAC system configuration and status monitoring. IC Role / Device Role / Timing Role: Full-stack embedded server running lightweight TCP/IP (uIP/LwIP) and HTTP daemon. Use Value: Integrated Ethernet MAC and deterministic interrupt latency ensure reliable connection handling under concurrent sensor polling load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3S6965-EQC25-A2T | Same core, 256 KB flash, but adds USB OTG controller and second SSI port - no Ethernet MAC. | Better suited for USB-connected HMI or storage devices; lacks native Ethernet for wired industrial networks. | Select when USB device/host capability is prioritized over Ethernet connectivity. |
| TM4C123GH6PM | Successor family: Cortex-M4F core, 256 KB flash, 32 KB SRAM, integrated PHY option, higher clock (80 MHz). | Supports floating-point math and enhanced PWM; newer lifecycle with active production and extended support. | Choose for new designs requiring FPU, longer product availability, or integrated PHY simplification. |
Compared with LM3S6100-EQC25-A2T, LM3S6965-EQC25-A2T trades Ethernet for USB and extra SSI, while TM4C123GH6PM upgrades to Cortex-M4F with higher performance and modern ecosystem support - both require layout changes and firmware adaptation.
Availability
LM3S6100-EQC25-A2T is available at Aetrix Electronics and suitable for industrial gateways, motor control nodes, and networked sensor hubs requiring stable component supply and long-term obsolescence management.
Supply support for LM3S6100-EQC25-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 over 90 years of innovation in industrial, automotive, and communications markets.
The Stellaris LM3S series was designed as the first ARM Cortex-M3-based microcontroller family for cost-sensitive, real-time industrial applications - emphasizing integrated peripherals, Ethernet readiness, and robust firmware development tools.
FAQ
Does LM3S6100-EQC25-A2T include an integrated Ethernet PHY?
No, the LM3S6100-EQC25-A2T integrates only the Ethernet MAC layer. It requires an external PHY IC (e.g., DP83848) and Ethernet magnetics for physical-layer signaling. The MII interface signals (TX/RX differential pairs, MDIO/MDC) are exposed on dedicated pins per Section 12 of the SPMS107I datasheet.
What debug interfaces does LM3S6100-EQC25-A2T support?
The LM3S6100-EQC25-A2T supports JTAG-based debugging via TCK, TMS, TDI, TDO, and TRST pins. It also implements SWD (Serial Wire Debug) compatibility through shared JTAG pins, enabling use with modern debug probes like CMSIS-DAP or TI XDS110 without additional hardware.
Is LM3S6100-EQC25-A2T pin-compatible with other LM3S6xxx variants?
No - LM3S6100-EQC25-A2T uses a 100-pin LQFP package, while other LM3S6xxx parts (e.g., LM3S6110, LM3S6120) may use 108-ball BGA or different LQFP pin counts. Pin mapping differs across variants; migration requires PCB redesign and signal validation per each part's specific pin table.
What is the maximum operating temperature range for LM3S6100-EQC25-A2T?
The LM3S6100-EQC25-A2T is rated for industrial temperature range: –40°C to +105°C ambient. This is confirmed in Section 16 (Operating Characteristics) of the SPMS107I datasheet, where DC and AC parameters are specified across this full range.
Can LM3S6100-EQC25-A2T execute code directly from flash memory?
Yes, the LM3S6100-EQC25-A2T supports XIP (eXecute-In-Place) from its 256 KB on-chip flash memory. The flash controller provides zero-wait-state access at 50 MHz, enabling deterministic real-time execution without copying firmware to RAM.
LM3S6100-EQC25-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:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 25MHz
- Connectivity:
- Ethernet, IrDA, Microwire, SPI, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 30
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.25V ~ 2.75V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LM3S6100-EQC25-A2T FAQ
1.How can I place an order for LM3S6100-EQC25-A2T through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S6100-EQC25-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 LM3S6100-EQC25-A2T reliable?
The price and inventory of LM3S6100-EQC25-A2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3S6100-EQC25-A2T is usually 5 days.
3.What payment methods are accepted for LM3S6100-EQC25-A2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S6100-EQC25-A2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S6100-EQC25-A2T?
LM3S6100-EQC25-A2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S6100-EQC25-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 LM3S6100-EQC25-A2T?
For technical support, including LM3S6100-EQC25-A2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S6100-EQC25-A2T requirements.
6.How does Aetrix verify that LM3S6100-EQC25-A2T is sourced from the original manufacturer or authorized distributors?
All LM3S6100-EQC25-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 LM3S6100-EQC25-A2T meets industry standards.
7.What is the process for return or replacement of LM3S6100-EQC25-A2T?
All LM3S6100-EQC25-A2T units undergo pre-shipment inspection (PSI). If there is an issue with LM3S6100-EQC25-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 LM3S6100-EQC25-A2T part is unused and in its original packaging.
Return procedure for LM3S6100-EQC25-A2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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