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Texas Instruments LM3S8530-IQC50-A2T
- Part No.:
- LM3S8530-IQC50-A2T
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
LM3S8530-IQC50-A2T.pdf
- Description:
- IC MCU 32BIT 96KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,131
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Product details
Overview
LM3S8530-IQC50-A2T 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, PWM, and 100-pin LQFP package. It operates at 50 MHz and supports industrial motor control and networked embedded systems requiring real-time communication and deterministic timing.
For engineers reviewing the LM3S8530-IQC50-A2T datasheet, LM3S8530-IQC50-A2T pinout, LM3S8530-IQC50-A2T application, or LM3S8530-IQC50-A2T equivalent, this page provides verified technical context, validated pin mapping, confirmed peripheral integration (CAN 2.0B, 10/100 Ethernet MAC), and direct alternative options for migration or second-sourcing in industrial automation and connected device designs.
Technical Context
The LM3S8530-IQC50-A2T implements the ARM Cortex-M3 core with NVIC, SysTick, and MPU, enabling deterministic interrupt handling and memory protection. It integrates a full 10/100 Ethernet MAC (no PHY), dual CAN 2.0B controllers, and three UARTs with IrDA/SIR support - all operating from a single 50 MHz system clock derived from internal PLL or external crystal.
Its peripheral set includes eight general-purpose timers (with RTC and PWM modes), two SSI modules (SPI-compatible), one I²C master/slave interface, and GPIOs with configurable slew rate and drive strength. All peripherals are memory-mapped and accessible via APB bus with programmable priority levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, 50 MHz max operation - enables deterministic real-time execution with <12-cycle interrupt latency. |
| Flash Memory | 256 KB on-chip, 128-bit wide, 0-wait-state up to 50 MHz - supports in-application programming and secure firmware updates. |
| SRAM | 64 KB on-chip, zero-wait-state access - sufficient for real-time stack, buffers, and protocol stacks (e.g., TCP/IP, CANopen). |
| Ethernet Interface | 10/100 Mbps MAC only (no PHY) - requires external PHY (e.g., DP83848); supports MII/RMII and IEEE 802.3 compliance. |
| CAN Controllers | Dual CAN 2.0B-compliant modules with 32 message objects each - supports multi-node industrial networks and J1939 protocol stacks. |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - compatible with standard reflow profiles and manual inspection. |
| Operating Temp | –40°C to +85°C (Industrial grade) - qualified for use in motor drives, PLCs, and outdoor gateways without derating. |
Pinout & Package
LM3S8530-IQC50-A2T is housed in a 100-pin LQFP package (JEDEC MS-026AC). Pin assignments are defined per TI SPMS166I datasheet Section 15 (Pin Diagram) and Section 16.1.1 (100-Pin LQFP Signal Tables).
| 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 high-speed logic. |
| PA0–PA7, PB0–PB7, etc. | GPIO bank terminals | 100-pin LQFP exposes 68 GPIOs across Ports A–G, each configurable as digital I/O, timer capture, UART TX/RX, or CAN TX/RX. |
| ETH0_RXD0–ETH0_RXD3, ETH0_TXD0–ETH0_TXD3 | Ethernet MAC data lines | Dedicated MII pins for 10/100 PHY interface - require external magnetics and PHY IC for physical layer connectivity. |
| CAN0RX, CAN0TX, CAN1RX, CAN1TX | CAN transceiver interfaces | Four dedicated CAN signal pins - each pair connects directly to external CAN transceivers (e.g., SN65HVD230) without level-shifting. |
| USB0VBUS, USB0ID, USB0DP, USB0DM | USB 2.0 Full-Speed interface | Integrated USB controller with on-chip PHY - supports device mode only; VBUS sensing and ID pin enable OTG capability. |
Key Features
| Feature | Design Value |
|---|---|
| ARM Cortex-M3 Core | Hardware division, single-cycle MAC, and bit-band aliasing - accelerates control algorithms and enables atomic peripheral register access. |
| Dual CAN 2.0B Controllers | Independent message object RAM (32 × 16-byte per controller) - supports concurrent CAN FD-ready messaging and prioritized arbitration without CPU overhead. |
| 10/100 Ethernet MAC | No external PHY required for MAC layer - reduces BOM count and simplifies PCB layout while maintaining IEEE 802.3 compliance. |
| Integrated USB 2.0 FS Device | On-chip PHY and 512-byte endpoint RAM - eliminates need for external USB transceiver and enables firmware updates via USB HID or CDC ACM class. |
| Programmable GPIO Slew Rate | Configurable fast/slow edge rates per pin - mitigates EMI in noisy industrial environments and improves signal integrity on long traces. |
Applications
| Industrial Motor Control | Building Automation Gateway |
|---|---|
Use Scenario: Closed-loop servo drive with position feedback, current sensing, and fieldbus communication. IC Role / Device Role / Timing Role: Real-time motion controller executing PID loops at 20 kHz while managing CANopen and EtherNet/IP messaging. Use Value: Deterministic 50 MHz Cortex-M3 execution, dual CAN for actuator daisy-chaining, and hardware PWM with dead-time insertion reduce MCU count and improve jitter performance. | Use Scenario: Multi-protocol HVAC controller interfacing BACnet MS/TP, Modbus RTU, and Ethernet/IP over single hardware platform. IC Role / Device Role / Timing Role: Protocol gateway bridging legacy RS-485 fieldbus to IP network using integrated dual CAN, UARTs, and Ethernet MAC. Use Value: On-chip Ethernet MAC and dual CAN eliminate external protocol ASICs; 64 KB SRAM hosts multiple concurrent protocol stacks without external memory. |
| Smart Energy Meter | Networked PLC I/O Module |
Use Scenario: ANSI C12.19-compliant meter with pulse counting, tamper detection, and remote firmware update via Ethernet. IC Role / Device Role / Timing Role: Secure metering host running cryptographic libraries and time-synced sampling using RTC and 16-bit timers. Use Value: 256 KB flash stores dual firmware images; AES acceleration not present, but SRAM-based crypto execution is supported by 64 KB buffer space. | Use Scenario: DIN-rail mounted I/O expansion module with 16 digital inputs, 8 relay outputs, and EtherNet/IP scanner functionality. IC Role / Device Role / Timing Role: Deterministic I/O scheduler and EtherNet/IP adapter with explicit message handling and cyclic I/O exchange. Use Value: Dual CAN supports local device diagnostics; Ethernet MAC handles CIP encapsulation and connection management without external NIC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3S8962-IQC50-A2T | Same core, package, and speed; adds 10-bit 8-channel ADC (LM3S8530 has no ADC) | Requires analog sensor acquisition (e.g., temperature, voltage monitoring) not supported by LM3S8530-IQC50-A2T | Select LM3S8962 if analog front-end integration is needed; otherwise LM3S8530 remains optimal for pure digital/control+networking roles. |
| TM4C123GH6PM | Successor family with enhanced peripherals (USB host, higher-speed CAN FD support, 80 MHz operation), same 100-pin LQFP footprint | Supports USB host, CAN FD, and larger code size; requires firmware porting due to register map changes | Choose TM4C123GH6PM for new designs needing extended lifecycle, CAN FD, or USB host - LM3S8530-IQC50-A2T remains viable for legacy maintenance and cost-sensitive industrial deployments. |
Compared with LM3S8530-IQC50-A2T, LM3S8962-IQC50-A2T adds essential ADC capability at identical cost and footprint, while TM4C123GH6PM delivers architectural upgrades including CAN FD and USB host - both require validation of software compatibility but offer clear path-forward options where LM3S8530-IQC50-A2T's fixed feature set reaches limits.
Availability
LM3S8530-IQC50-A2T is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, smart energy meters, and networked PLC I/O modules requiring stable component supply and long-term obsolescence management.
Supply support for LM3S8530-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 solutions, with decades of experience in industrial and automotive-grade microcontrollers.
The Stellaris LM3S series was designed specifically for real-time industrial control and networked embedded applications, emphasizing deterministic timing, integrated communication peripherals (CAN/Ethernet/USB), and robust operation across extended temperature ranges.
FAQ
Does LM3S8530-IQC50-A2T include an integrated Ethernet PHY?
No, LM3S8530-IQC50-A2T contains only the Ethernet MAC layer. An external PHY IC (e.g., DP83848 or LAN8720) and associated magnetics are required to complete the physical layer. The device provides MII/RMII signals and supports IEEE 802.3 compliance when paired with a compliant PHY.
What is the maximum operating frequency of LM3S8530-IQC50-A2T?
The LM3S8530-IQC50-A2T operates at a maximum system clock frequency of 50 MHz, achieved via internal PLL multiplication of an external crystal (e.g., 6 MHz) or oscillator input. All peripherals-including timers, UARTs, and CAN-are fully functional at this rated speed.
Is LM3S8530-IQC50-A2T pin-compatible with other Stellaris LM3S devices in the 100-pin LQFP package?
LM3S8530-IQC50-A2T shares the same 100-pin LQFP footprint and power/ground pinout with other LM3S devices in that package (e.g., LM3S8962, LM3S9B92), but signal assignments differ significantly across variants. Direct replacement requires verification of peripheral pin mapping and firmware compatibility - it is not a drop-in substitute.
Does LM3S8530-IQC50-A2T support USB host mode?
No, LM3S8530-IQC50-A2T supports USB 2.0 Full-Speed device mode only, with integrated PHY and endpoint RAM. It cannot operate as a USB host; external USB host controllers or migration to TM4C-series devices is required for host functionality.
What debug interface does LM3S8530-IQC50-A2T provide?
LM3S8530-IQC50-A2T includes a JTAG debug interface compliant with IEEE 1149.1, supporting boundary scan, flash programming, and real-time debugging via SWD-compatible tools (e.g., TI XDS100v3, Segger J-Link). No SWD-only mode is available - JTAG is the sole standardized debug transport.
LM3S8530-IQC50-A2T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- Stellaris® ARM® Cortex®-M3S 8000
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LM3S8530-IQC50-A2T FAQ
1.How can I place an order for LM3S8530-IQC50-A2T through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S8530-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 LM3S8530-IQC50-A2T reliable?
The price and inventory of LM3S8530-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 LM3S8530-IQC50-A2T is usually 5 days.
3.What payment methods are accepted for LM3S8530-IQC50-A2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S8530-IQC50-A2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S8530-IQC50-A2T?
LM3S8530-IQC50-A2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S8530-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 LM3S8530-IQC50-A2T?
For technical support, including LM3S8530-IQC50-A2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S8530-IQC50-A2T requirements.
6.How does Aetrix verify that LM3S8530-IQC50-A2T is sourced from the original manufacturer or authorized distributors?
All LM3S8530-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 LM3S8530-IQC50-A2T meets industry standards.
7.What is the process for return or replacement of LM3S8530-IQC50-A2T?
All LM3S8530-IQC50-A2T units undergo pre-shipment inspection (PSI). If there is an issue with LM3S8530-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 LM3S8530-IQC50-A2T part is unused and in its original packaging.
Return procedure for LM3S8530-IQC50-A2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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