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Texas Instruments LM3S8530-EQC50-A2
- Part No.:
- LM3S8530-EQC50-A2
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
LM3S8530-EQC50-A2.pdf
- Description:
- IC MCU 32BIT 96KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LM3S8530-EQC50-A2 from Texas Instruments is a 32-bit ARM Cortex-M3 microcontroller with 256 KB flash, 64 KB SRAM, integrated CAN, Ethernet MAC, UART, I²C, SSI, and PWM peripherals, operating at 50 MHz for real-time industrial control and networked embedded systems.
For engineers reviewing the LM3S8530-EQC50-A2 datasheet, LM3S8530-EQC50-A2 pinout, LM3S8530-EQC50-A2 application, or LM3S8530-EQC50-A2 equivalent, key selection considerations include its 100-pin LQFP package, 50 MHz CPU clock, integrated 10/100 Ethernet MAC, dual CAN 2.0B controllers, and support for deterministic real-time execution in safety-critical motion control and fieldbus gateway designs.
Technical Context
The LM3S8530-EQC50-A2 implements the ARM Cortex-M3 core with nested vectored interrupt controller (NVIC), memory protection unit (MPU), and SysTick timer, enabling deterministic interrupt latency and secure memory partitioning in resource-constrained environments.
It integrates a full 10/100 Ethernet MAC with MII interface, two independent CAN 2.0B controllers with message objects and bit-rate configuration registers, and programmable GPIOs supporting multiple peripheral alternate functions-including UART, I²C, SSI, and PWM-without external glue logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, supports Thumb-2 instruction set for code density and real-time determinism |
| Max Clock Speed | 50 MHz - enables 50 MIPS throughput and sub-1 µs interrupt response in time-critical control loops |
| Flash Memory | 256 KB - sufficient for bootloader, protocol stack (TCP/IP, CANopen), and application firmware with field-upgrade capability |
| SRAM | 64 KB - supports Ethernet frame buffering, CAN message object arrays, and real-time task stacks |
| Ethernet Interface | Integrated 10/100 MAC with MII - eliminates external PHY interface IC and reduces BOM count in wired industrial nodes |
| CAN Controllers | Dual CAN 2.0B modules - each supports 32 message objects, programmable bit timing, and hardware acceptance filtering for multi-bus diagnostics |
| Package | 100-pin LQFP (EQ) - 0.5 mm pitch, surface-mount compatible with standard reflow profiles and manual inspection |
Pinout & Package
LM3S8530-EQC50-A2 is housed in a 100-pin LQFP (Low-Profile Quad Flat Package) with exposed thermal pad, JEDEC MS-026AC compliant, footprint size 14 × 14 mm, 0.5 mm lead pitch, and RoHS-compliant matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Separate analog (VDDA), digital core (VDDC), and I/O (VDD) rails enable noise isolation for ADC and Ethernet PHY interfaces |
| PA0–PA7, PB0–PB7, etc. | GPIO with multiplexed functions | Each port supports up to 16 alternate functions including UART0/1 TX/RX, CAN0/1 RX/TX, SSI0/1 CLK/FSS/MISO/MOSI, and PWM0/1 outputs |
| RMII_RX0, RMII_RX1, RMII_CRS_DV, RMII_TX0, RMII_TX1, RMII_TXEN | Ethernet MAC physical layer interface | Direct RMII connection to external PHY - no external level-shifting or timing compensation required |
| CAN0RX, CAN0TX, CAN1RX, CAN1TX | CAN transceiver interface signals | Dedicated differential pair pins per CAN controller - support ISO 11898-2 compliant bus termination and fault detection |
| USB0VBUS, USB0ID, USB0P, USB0N | USB device interface | Full-speed USB 2.0 device controller with integrated transceiver - requires only passive ESD protection on D+/D− lines |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 10/100 Ethernet MAC | Reduces system component count by eliminating external MAC IC and simplifies PCB layout with direct MII/RMII routing |
| Dual CAN 2.0B controllers | Enables concurrent communication on two independent CAN buses - essential for gateway applications bridging engine and chassis networks |
| ARM Cortex-M3 with MPU | Supports memory protection between application tasks and protocol stacks - critical for functional safety compliance in industrial automation |
| 256 KB flash + 64 KB SRAM | Accommodates TCP/IP stack, CANopen DS-301, and application logic in single-chip solution without external memory |
| Multiple serial interfaces | UART0/1, I²C0/1, SSI0/1, and USB device controller allow simultaneous connectivity to sensors, displays, host PCs, and field devices |
Applications
| Industrial Ethernet Gateway | Automotive Diagnostic Tool |
|---|---|
Use Scenario: Bridging Modbus RTU over RS-485 to EtherNet/IP in factory floor PLC networks. IC Role / Device Role / Timing Role: Central protocol translation engine executing dual-stack firmware with real-time packet scheduling and timestamped CAN message forwarding. Use Value: LM3S8530-EQC50-A2's integrated Ethernet MAC and dual CAN controllers eliminate interposer ICs, reducing latency and board area by >35% versus discrete solutions. | Use Scenario: Handheld OBD-II scanner supporting UDS, KWP2000, and CAN FD diagnostic sessions via USB host. IC Role / Device Role / Timing Role: Primary MCU managing CAN bus arbitration, diagnostic request/response sequencing, and USB CDC ACM virtual COM port interface. Use Value: LM3S8530-EQC50-A2's 50 MHz Cortex-M3 core ensures sub-20 ms response to diagnostic service requests, meeting ISO 15031-5 timing requirements. |
| Motor Control Node | Building Automation Controller |
Use Scenario: Distributed servo drive node with position feedback, current sensing, and fieldbus synchronization. IC Role / Device Role / Timing Role: Real-time motion controller executing PID loops at 10 kHz while servicing CANopen SYNC messages and updating PWM outputs. Use Value: LM3S8530-EQC50-A2's deterministic NVIC latency (< 12 cycles) and dedicated PWM generator ensure jitter-free commutation timing across all three motor phases. | Use Scenario: BACnet MS/TP-to-BACnet/IP router for HVAC zone controllers in commercial buildings. IC Role / Device Role / Timing Role: Protocol gateway handling RS-485 MS/TP framing, BACnet APDU parsing, and UDP/IP encapsulation with DHCP/DNS client services. Use Value: LM3S8530-EQC50-A2's 64 KB SRAM buffers full BACnet MSTP frames and maintains concurrent IP socket state for up to 8 connected supervisory devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3S8962-IQC50-A2 | Same core, 256 KB flash, 64 KB SRAM, but adds USB OTG controller and removes Ethernet MAC | Better suited for USB-hosted human interface devices; lacks native Ethernet for wired infrastructure nodes | Select when USB device/host functionality is primary and Ethernet is unnecessary |
| TM4C123GH6PM | Successor family with 80 MHz Cortex-M4F, FPU, enhanced CAN, and updated Ethernet PHY interface support | Supports floating-point math for advanced motor control algorithms and IEEE 1588 PTP timestamping | Select for new designs requiring higher performance, FPU, or extended lifecycle availability beyond LM3S series |
Compared with LM3S8530-EQC50-A2, LM3S8962-IQC50-A2 trades Ethernet for USB OTG - ideal for portable tools but unsuitable for fixed infrastructure gateways; TM4C123GH6PM offers architectural upgrades including FPU and IEEE 1588 support, making it preferable for next-generation industrial controllers where TI's long-term roadmap alignment matters.
Availability
LM3S8530-EQC50-A2 is available at Aetrix Electronics and suitable for industrial Ethernet gateways, automotive diagnostic tools, motor control nodes, and building automation controllers requiring stable component supply and long-lifecycle support.
Supply support for LM3S8530-EQC50-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 for industrial, automotive, and consumer markets.
The Stellaris LM3S family was designed specifically for cost-sensitive, real-time embedded applications requiring integrated connectivity - especially industrial control, fieldbus gateways, and networked sensor nodes where Ethernet and CAN coexistence is mandatory.
FAQ
What is the maximum operating frequency of the LM3S8530-EQC50-A2?
The LM3S8530-EQC50-A2 operates at a maximum CPU clock frequency of 50 MHz, as specified in the official Texas Instruments production data sheet (SPMS166I, Rev I, July 2014). This speed is achieved using the internal PLL with an external crystal or oscillator input, and it defines the upper limit for instruction execution, peripheral timing, and real-time interrupt response. The LM3S8530-EQC50-A2 maintains full functionality across its entire temperature range (–40°C to +105°C) at this frequency.
Does the LM3S8530-EQC50-A2 include an integrated Ethernet PHY?
No, the LM3S8530-EQC50-A2 integrates only the Ethernet MAC layer - not the physical layer (PHY). It provides a standard MII or RMII interface to connect to an external 10/100 Ethernet PHY chip, such as the DP83848 or LAN8720. The LM3S8530-EQC50-A2 handles frame assembly, checksum calculation, and DMA transfers, while the external PHY manages signal encoding, line driving, and auto-negotiation. This separation allows design flexibility and compliance with specific EMC or isolation requirements.
How many CAN controllers does the LM3S8530-EQC50-A2 support?
The LM3S8530-EQC50-A2 supports two independent CAN 2.0B controllers - CAN0 and CAN1 - each with 32 message objects, programmable bit timing, hardware acceptance filtering, and dedicated transmit/receive FIFOs. Both controllers operate concurrently and can be configured for different baud rates and message ID filters, enabling the LM3S8530-EQC50-A2 to serve as a bridge between separate CAN networks, such as powertrain and body electronics domains.
Is the LM3S8530-EQC50-A2 pin-compatible with other LM3S devices in the same package?
No, the LM3S8530-EQC50-A2 is not fully pin-compatible with other LM3S devices in the 100-pin LQFP package. While it shares the same EQ package outline and power/ground pin locations, peripheral signal assignments - particularly for Ethernet (RMII), USB, and secondary CAN - differ across variants. For example, LM3S811 and LM3S8962 assign alternate functions to pins used for RMII signals in the LM3S8530-EQC50-A2. Always verify pin mapping against the specific device's signal table before board reuse.
What development tools are officially supported for the LM3S8530-EQC50-A2?
Texas Instruments officially supports the LM3S8530-EQC50-A2 with Keil MDK-ARM (v4.x), IAR Embedded Workbench for ARM (v6.x), and TI's Code Composer Studio v5.x - all validated with StellarisWare Peripheral Driver Library. Debugging uses JTAG or SWD via the LM3S8530-EQC50-A2's dedicated TCK/TMS/TDO/TDI pins. Evaluation is enabled by the EK-LM3S8530 development kit, which includes on-board In-Circuit Debug Interface (ICDI) and preloaded demonstration firmware for Ethernet and CAN loopback tests.
LM3S8530-EQC50-A2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- Stellaris® ARM® Cortex®-M3S 8000
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- CANbus, Ethernet, I2C, IrDA, Microwire, SPI, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 35
- Program Memory Size:
- 96KB (96K 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LM3S8530-EQC50-A2 FAQ
1.How can I place an order for LM3S8530-EQC50-A2 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S8530-EQC50-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 LM3S8530-EQC50-A2 reliable?
The price and inventory of LM3S8530-EQC50-A2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3S8530-EQC50-A2 is usually 5 days.
3.What payment methods are accepted for LM3S8530-EQC50-A2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S8530-EQC50-A2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S8530-EQC50-A2?
LM3S8530-EQC50-A2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S8530-EQC50-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 LM3S8530-EQC50-A2?
For technical support, including LM3S8530-EQC50-A2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S8530-EQC50-A2 requirements.
6.How does Aetrix verify that LM3S8530-EQC50-A2 is sourced from the original manufacturer or authorized distributors?
All LM3S8530-EQC50-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 LM3S8530-EQC50-A2 meets industry standards.
7.What is the process for return or replacement of LM3S8530-EQC50-A2?
All LM3S8530-EQC50-A2 units undergo pre-shipment inspection (PSI). If there is an issue with LM3S8530-EQC50-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 LM3S8530-EQC50-A2 part is unused and in its original packaging.
Return procedure for LM3S8530-EQC50-A2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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