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Texas Instruments LM3S8930-EQC50-A2
- Part No.:
- LM3S8930-EQC50-A2
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
LM3S8930-EQC50-A2.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,212
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Product details
Overview
LM3S8930-EQC50-A2 from Texas Instruments is a 32-bit ARM Cortex-M3 microcontroller with 256 KB flash, 64 KB SRAM, integrated CAN, Ethernet MAC, USB device, and hibernation module. It operates at up to 50 MHz and supports industrial motor control and embedded networking applications.
For engineers reviewing the LM3S8930-EQC50-A2 datasheet, LM3S8930-EQC50-A2 pinout, LM3S8930-EQC50-A2 application, or LM3S8930-EQC50-A2 equivalent, key selection criteria include its 50 MHz CPU clock, integrated 10/100 Ethernet MAC, dual CAN 2.0B controllers, hibernation mode with RTC and battery-backed memory, and QFP-100 package compatibility.
Technical Context
The LM3S8930-EQC50-A2 implements the ARMv7-M architecture with NVIC, SysTick, MPU, and debug support via JTAG/SWD. It integrates a dedicated hibernation module with real-time clock, battery-backed RAM, and wake-up sources including external pins and RTC match events.
Peripherals include one 10/100 Ethernet MAC (no PHY), two CAN 2.0B controllers, one USB 2.0 device controller, three UARTs, two SSI ports, two I²C modules, eight PWM outputs, six general-purpose timers (including 32-bit RTC-capable), and 68 GPIOs with interrupt capability per pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, runs Thumb-2 instructions at up to 50 MHz |
| Flash Memory | 256 KB on-chip flash with 128-bit wide interface and single-cycle access at 50 MHz |
| SRAM | 64 KB on-chip SRAM with parity protection and zero-wait-state operation |
| Package | 100-pin LQFP (EQC), 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant |
| Operating Voltage | 3.3 V nominal, supports 3.135–3.465 V range with internal voltage regulator |
| Hibernation Mode | Retains RTC, battery-backed RAM, and wake-up logic while drawing ≤1.6 µA (typical) |
| Ethernet Interface | 10/100 Mbps MAC layer only; requires external PHY for physical layer connectivity |
| CAN Controllers | Two independent CAN 2.0B-compliant modules with 32 message objects each |
Pinout & Package
LM3S8930-EQC50-A2 is housed in a 100-pin LQFP (Leadless Quad Flat Package) with exposed thermal pad, designated EQC by Texas Instruments. Pin assignments are defined for the full 100-pin footprint and validated against SPMS172I revision data sheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Digital core (VDDC), analog (VDDA), and I/O (VDD) rails-each require local decoupling |
| GND | Ground reference | Multiple GND pins distributed across package for low-impedance return paths |
| USB0VBUS, USB0ID | USB device interface | VBUS sensing and ID pin for OTG detection; supports full-speed USB 2.0 device operation |
| ETH0RX+, ETH0RX−, ETH0TX+, ETH0TX− | Ethernet MAC differential pairs | Direct connection to external PHY; no internal magnetics or termination |
| CAN0RX, CAN0TX, CAN1RX, CAN1TX | CAN transceiver interfaces | Each pair connects to external CAN transceiver; supports high-speed CAN up to 1 Mbps |
| HIBRST, HIBRTCCLK | Hibernation module control | External reset input and optional 32.768 kHz crystal input for RTC during hibernation |
| PD0–PD7, PE0–PE7, PF0–PF4, etc. | General-purpose I/O | 68 total GPIOs; many support alternate functions (UART, SSI, I²C, PWM, timer capture) |
Key Features
| Feature | Design Value |
|---|---|
| Hibernation Module with RTC | Enables ultra-low-power operation (<2 µA) while maintaining timekeeping and retaining 2 KB of battery-backed RAM |
| Dual CAN 2.0B Controllers | Supports automotive and industrial fieldbus communication with programmable bit timing and 32-message object FIFO per controller |
| Integrated Ethernet MAC | Reduces BOM cost and PCB area by eliminating external MAC; compatible with standard IEEE 802.3 PHYs |
| USB 2.0 Device Controller | Full-speed (12 Mbps) USB device stack support without external transceiver; includes internal pull-up resistor |
| Memory Protection Unit (MPU) | Enforces privilege-level access control and memory region isolation for RTOS-based safety-critical firmware |
| JTAG + SWD Debug Interface | Enables non-intrusive debugging, flash programming, and real-time trace via standard ARM toolchains |
Applications
| Industrial Motor Control | Building Automation Gateway |
|---|---|
Use Scenario: Closed-loop control of BLDC motors using PWM outputs, quadrature encoder inputs, and current-sense ADC interfaces. IC Role / Device Role / Timing Role: Real-time execution host with deterministic interrupt latency, integrated PWM generator, and CAN bus interface for actuator coordination. Use Value: Eliminates need for external CAN controller or timer peripherals; hibernation mode enables energy-efficient standby between motion cycles. | Use Scenario: Protocol translation hub connecting BACnet MS/TP field devices to Ethernet/IP backbone networks. IC Role / Device Role / Timing Role: Dual-interface bridge processor managing concurrent CAN, UART, and Ethernet MAC traffic with time-synchronized packet forwarding. Use Value: Single-chip solution reduces gateways' component count; integrated Ethernet MAC avoids external MAC+PHY ICs and associated layout complexity. |
| Smart Energy Metering | Remote Terminal Unit (RTU) |
Use Scenario: Utility-grade electricity meter with tamper detection, pulse counting, and secure data logging over cellular or RF links. IC Role / Device Role / Timing Role: Secure data acquisition node with RTC-driven sampling intervals, flash-based firmware updates, and cryptographic acceleration support. Use Value: Battery-backed hibernation preserves meter time and configuration during power loss; 256 KB flash accommodates dual-bank OTA update images. | Use Scenario: Oil/gas pipeline monitoring unit collecting sensor data (pressure, temperature, flow) and transmitting via satellite or LTE modems. IC Role / Device Role / Timing Role: Low-power edge controller with CAN for local sensor buses, UART for modem control, and hibernation for extended battery life. Use Value: Sub-2 µA hibernation current extends battery life to multi-year deployments; dual CAN interfaces enable redundant fieldbus connectivity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3S9B92-IQC50-A2 | Same Cortex-M3 core, 512 KB flash, 96 KB SRAM, adds 10-bit ADC (1MSPS), removes Ethernet MAC | Better suited for analog-intensive control (e.g., power supply regulation) but lacks Ethernet connectivity | Select when higher-resolution analog acquisition and larger code space outweigh need for network interface |
| TM4C123GH6PM | Successor family; same pinout, 80 MHz, 256 KB flash, 32 KB SRAM, adds USB OTG, enhanced PWM, and updated peripheral set | Requires firmware migration but offers improved performance, lower active power, and longer product lifecycle support | Select for new designs requiring extended longevity, higher throughput, or USB host capability |
Compared with LM3S8930-EQC50-A2, LM3S9B92-IQC50-A2 trades Ethernet for more flash and ADC capability, while TM4C123GH6PM delivers higher clock speed, modernized peripherals, and ongoing TI support-making it the recommended upgrade path where pin compatibility and software portability are priorities.
Availability
LM3S8930-EQC50-A2 is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, smart energy metering, and remote terminal units requiring stable component supply and long-term obsolescence management.
Supply support for LM3S8930-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 since 1930.
The Stellaris LM3S series was designed as TI's first ARM-based microcontroller platform targeting cost-sensitive, real-time industrial and automation applications with integrated connectivity and low-power hibernation.
FAQ
Does the LM3S8930-EQC50-A2 include an integrated Ethernet PHY?
No, the LM3S8930-EQC50-A2 contains only the Ethernet MAC layer. An external PHY IC (e.g., DP83848 or LAN8720) must be used to implement the physical layer, including magnetics, line drivers, and MII/RMII interface signaling. The LM3S8930-EQC50-A2 provides all required MAC registers, DMA channels, and interrupt support for seamless integration with standard PHYs.
What is the maximum operating frequency of the LM3S8930-EQC50-A2?
The LM3S8930-EQC50-A2 is rated for a maximum system clock frequency of 50 MHz. This applies to both the CPU core and most synchronous peripherals when powered at 3.3 V. The internal PLL allows flexible clock generation from external crystals or oscillators, and the system clock tree supports independent prescaling for peripherals requiring lower frequencies.
Is the LM3S8930-EQC50-A2 pin-compatible with other Stellaris LM3S devices?
The LM3S8930-EQC50-A2 uses a 100-pin LQFP package (EQC) shared with several other LM3S devices, but pin functions are not fully interchangeable across the family. For example, Ethernet and CAN signals occupy specific pins that differ in placement or availability on other variants. Always verify signal mapping and electrical characteristics using the LM3S8930-specific datasheet before substitution.
Does the LM3S8930-EQC50-A2 support USB device functionality without external components?
Yes-the LM3S8930-EQC50-A2 integrates a full-speed USB 2.0 device controller with internal transceiver and pull-up resistor on D+. Only a USB connector, ESD protection diodes, and proper PCB layout are required to implement compliant USB device operation. No external PHY or transceiver IC is needed for basic enumeration and data transfer.
What debug interfaces does the LM3S8930-EQC50-A2 support?
The LM3S8930-EQC50-A2 supports both JTAG and Serial Wire Debug (SWD) interfaces for programming and real-time debugging. It includes full NVIC, Flash Patch and Breakpoint (FPB), and Data Watchpoint and Trace (DWT) units. Debug access is enabled via standard ARM-compliant tools such as Keil MDK, IAR Embedded Workbench, and TI's Code Composer Studio.
LM3S8930-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:
- 34
- Program Memory Size:
- 256KB (256K 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:
LM3S8930-EQC50-A2 FAQ
1.How can I place an order for LM3S8930-EQC50-A2 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S8930-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 LM3S8930-EQC50-A2 reliable?
The price and inventory of LM3S8930-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 LM3S8930-EQC50-A2 is usually 5 days.
3.What payment methods are accepted for LM3S8930-EQC50-A2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S8930-EQC50-A2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S8930-EQC50-A2?
LM3S8930-EQC50-A2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S8930-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 LM3S8930-EQC50-A2?
For technical support, including LM3S8930-EQC50-A2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S8930-EQC50-A2 requirements.
6.How does Aetrix verify that LM3S8930-EQC50-A2 is sourced from the original manufacturer or authorized distributors?
All LM3S8930-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 LM3S8930-EQC50-A2 meets industry standards.
7.What is the process for return or replacement of LM3S8930-EQC50-A2?
All LM3S8930-EQC50-A2 units undergo pre-shipment inspection (PSI). If there is an issue with LM3S8930-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 LM3S8930-EQC50-A2 part is unused and in its original packaging.
Return procedure for LM3S8930-EQC50-A2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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