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Texas Instruments LM3S8962-EQC50-A2T
- Part No.:
- LM3S8962-EQC50-A2T
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
LM3S8962-EQC50-A2T.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,029
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Product details
Overview
LM3S8962-EQC50-A2T from Texas Instruments is a 32-bit ARM Cortex-M3 microcontroller with 256 KB flash, 64 KB SRAM, integrated CAN 2.0A/B controller, 12-bit ADC (up to 1 MSPS), and hibernation module supporting RTC and battery-backed memory. It operates at 50 MHz and targets industrial motor control and embedded automation systems requiring deterministic real-time response.
For engineers reviewing the LM3S8962-EQC50-A2T datasheet, LM3S8962-EQC50-A2T pinout, LM3S8962-EQC50-A2T application, or LM3S8962-EQC50-A2T equivalent, key selection criteria include CAN interface support, hibernation power management, analog acquisition capability, and Cortex-M3 debug infrastructure including SWD/JTAG and TPIU trace.
Technical Context
The LM3S8962-EQC50-A2T implements the ARMv7-M architecture with NVIC-based interrupt handling, SysTick timer, and Memory Protection Unit (MPU). It integrates dual CAN controllers compliant with ISO 11898-1:2003, supporting both standard and extended frames with programmable message objects and FIFO buffering.
Its analog subsystem includes an 8-channel, 12-bit ADC with hardware averaging and temperature sensor input; digital peripherals include four UARTs, two SSI modules, two I²C interfaces, six general-purpose timers (including RTC-capable GPTM), and GPIOs with slew-rate control and configurable pull-up/down.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, 50 MHz max operation - enables deterministic real-time task scheduling and Thumb-2 instruction efficiency. |
| Flash Memory | 256 KB on-chip flash with 128-bit wide interface - supports in-application programming and secure firmware updates. |
| SRAM | 64 KB single-cycle RAM - sufficient for real-time control stacks, communication buffers, and ADC sample storage. |
| ADC | 12-bit, 1 MSPS, 8-channel SAR ADC with hardware averaging - suitable for precision motor current sensing and analog feedback loops. |
| CAN Interface | Dual CAN 2.0A/B controllers with 32 message objects per module - enables redundant bus communication or multi-node network topology. |
| Hibernation Module | RTC + battery-backed 2 KB SRAM + wake-on-external-interrupt - allows sub-μA sleep mode with timekeeping and state retention. |
| Package | 100-pin LQFP (EQC) - provides full peripheral access and thermal performance for industrial PCB layouts. |
Pinout & Package
LM3S8962-EQC50-A2T is housed in a 100-pin LQFP (Leadless Quad Flat Package) with 0.5 mm pitch, JEDEC MO-220 standard footprint, and exposed thermal pad for enhanced heat dissipation in continuous industrial operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Separate domains for digital core (VDD), analog (VDDA), and CAN transceiver (VDDC) - enable noise isolation and independent power sequencing. |
| GND, GNDA, GNDC | Ground returns | Dedicated analog and CAN ground planes reduce coupling and improve signal integrity for mixed-signal operation. |
| PA0–PA7, PB0–PB7, etc. | GPIO banks A–G | Configurable as digital I/O, alternate function (UART/SSI/I²C/CAN), or analog inputs - supports flexible peripheral mapping without external logic. |
| CAN0RX / CAN0TX | CAN controller interface | Differential receive/transmit pins for CAN0 bus - require external transceiver (e.g., SN65HVD230) for physical layer compliance. |
| USB0VBUS, USB0ID | USB OTG detection | Supports device/host role detection via VBUS sensing and ID pin - enables dual-role USB connectivity when used with external PHY. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Hibernation Module | Enables <1 μA deep-sleep current with RTC accuracy ±12 ppm and battery-backed SRAM retention - critical for battery-powered remote sensors. |
| Dual CAN Controllers | Each supports 32 message objects, programmable filters, and automatic retransmission - eliminates need for external CAN protocol handlers in distributed control networks. |
| ARM CoreSight Debug | Includes SWD/JTAG and TPIU trace port - allows non-intrusive real-time code profiling and fault analysis without halting CPU execution. |
| Hardware-Averaged ADC | Up to 64-sample hardware averaging per conversion - improves effective resolution to ~14 bits for low-noise current/voltage measurement without software overhead. |
| Peripheral Multiplexing | Multiple alternate functions per GPIO pin (e.g., UART0TX on PA0 or PF1) - simplifies board layout by enabling routing flexibility and reducing layer count. |
Applications
| Industrial Motor Control | Automated Building Systems |
|---|---|
Use Scenario: Closed-loop servo drive controlling PMSM/BLDC motors with field-oriented control (FOC). IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation, current sensing via ADC, and CAN-based command interface. Use Value: Deterministic 50 MHz Cortex-M3 timing ensures sub-10 μs interrupt latency for current loop closure; dual CAN supports master-slave axis coordination. | Use Scenario: HVAC controller managing chillers, VAV boxes, and damper actuators across BACnet/IP or Modbus TCP gateways. IC Role / Device Role / Timing Role: Protocol translation hub with dual CAN for fieldbus integration, UART for RS-485 Modbus, and Ethernet MAC (via external PHY). Use Value: Integrated CAN and multiple UARTs eliminate external protocol bridges; hibernation mode enables energy-efficient occupancy-aware scheduling. |
| Remote Telemetry Units | Programmable Logic Controllers (PLCs) |
Use Scenario: Solar micro-inverter monitoring node collecting DC voltage/current, ambient temperature, and grid synchronization status. IC Role / Device Role / Timing Role: Sensor fusion processor with ADC, temperature sensor, RTC, and CAN for local data aggregation before cellular upload. Use Value: Battery-backed hibernation retains time and last valid readings during grid outage; 12-bit ADC meets IEC 61000-4-30 Class A measurement requirements. | Use Scenario: Compact modular PLC base unit executing ladder logic, handling discrete I/O, and communicating over CANopen or DeviceNet. IC Role / Device Role / Timing Role: Central control engine with deterministic scan cycle timing, GPIO for digital I/O expansion, and dual CAN for fieldbus master operation. Use Value: MPU-enforced memory protection isolates runtime code from configuration data; dual CAN supports redundant bus or multi-segment topology per IEC 61158. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C123GH6PM | Successor part with same pinout, 80 MHz Cortex-M4F core, FPU, enhanced CAN filtering, and updated peripheral set. | Supports floating-point math for advanced motor control algorithms and higher-speed communication protocols like CAN FD. | Select when migrating legacy designs to newer TI ecosystem with extended lifecycle and enhanced debug features. |
| STM32F103VET6 | ARM Cortex-M3 at 72 MHz, 512 KB flash, 64 KB SRAM, single CAN 2.0B, no hibernation module or integrated RTC battery backup. | Lacks hibernation power management and dual CAN; requires external RTC and backup capacitor for low-power timekeeping. | Choose for cost-sensitive applications where hibernation and dual CAN are not required, and higher clock speed justifies peripheral trade-offs. |
Compared with TM4C123GH6PM and STM32F103VET6, the LM3S8962-EQC50-A2T offers unique hibernation+RTC+backup-SRAM integration and dual CAN in a mature, production-qualified package - making it optimal for long-lifecycle industrial deployments where feature stability outweighs raw performance uplift.
Availability
LM3S8962-EQC50-A2T is available at Aetrix Electronics and suitable for industrial motor control, building automation, remote telemetry, and programmable logic controller applications requiring stable component supply and long-term manufacturing continuity.
Supply support for LM3S8962-EQC50-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 decades of experience in industrial-grade microcontrollers and power management solutions.
The Stellaris LM3S series was designed specifically for deterministic real-time embedded control in harsh environments, emphasizing robust peripheral integration, low-power hibernation, and industrial communications (CAN, UART, I²C) without external glue logic.
FAQ
What is the maximum operating frequency of the LM3S8962-EQC50-A2T?
The LM3S8962-EQC50-A2T operates at a maximum system clock frequency of 50 MHz, derived from its internal PLL or external crystal oscillator. This frequency is specified under industrial temperature range (–40°C to +85°C) and 3.3 V supply conditions, and enables deterministic interrupt latency below 10 μs for real-time control loops. The LM3S8962-EQC50-A2T does not support overclocking beyond this rated speed.
Does the LM3S8962-EQC50-A2T support CAN FD or only classical CAN 2.0?
The LM3S8962-EQC50-A2T supports only classical CAN 2.0A/B protocol (ISO 11898-1:2003) with fixed 11-bit or 29-bit identifiers and up to 8-byte payloads. It lacks CAN FD features such as bit rate switching and extended payload length. For CAN FD capability, TI recommends the TM4C123GH6PM or later C2000™ or Hercules™ families. The LM3S8962-EQC50-A2T remains fully compatible with existing CAN 2.0 networks.
How much battery-backed memory does the hibernation module provide in the LM3S8962-EQC50-A2T?
The hibernation module in the LM3S8962-EQC50-A2T includes 2 KB of battery-backed SRAM, accessible only during hibernation mode and retained across power cycles when VBAT is supplied. This memory preserves critical state variables, calibration data, or RTC alarm settings without requiring external nonvolatile storage. The LM3S8962-EQC50-A2T also integrates a dedicated RTC with calendar functionality and ±12 ppm accuracy over temperature.
Is the LM3S8962-EQC50-A2T pin-compatible with other LM3S devices in the same package?
The LM3S8962-EQC50-A2T uses a 100-pin LQFP (EQC) package shared with several other LM3S family members, but pin compatibility is not guaranteed across variants due to differences in peripheral mapping and alternate function assignments. For example, CAN1 signals appear on different pins than CAN0, and USB functionality may be absent or relocated. Always verify pinout against the specific LM3S8962-EQC50-A2T datasheet before board reuse.
What debug interfaces are supported by the LM3S8962-EQC50-A2T?
The LM3S8962-EQC50-A2T supports JTAG and Serial Wire Debug (SWD) interfaces for programming and real-time debugging, plus a Trace Port Interface Unit (TPIU) for instruction and data trace output. These interfaces are accessible via standard ARM Cortex-M3 debug connectors and are fully supported by TI's Code Composer Studio and third-party tools like Segger J-Link. The LM3S8962-EQC50-A2T does not require external debug hardware beyond a standard SWD/JTAG probe.
LM3S8962-EQC50-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, QEI, SPI, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 42
- 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:
- A/D 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LM3S8962-EQC50-A2T FAQ
1.How can I place an order for LM3S8962-EQC50-A2T through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S8962-EQC50-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 LM3S8962-EQC50-A2T reliable?
The price and inventory of LM3S8962-EQC50-A2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3S8962-EQC50-A2T is usually 5 days.
3.What payment methods are accepted for LM3S8962-EQC50-A2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S8962-EQC50-A2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S8962-EQC50-A2T?
LM3S8962-EQC50-A2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S8962-EQC50-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 LM3S8962-EQC50-A2T?
For technical support, including LM3S8962-EQC50-A2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S8962-EQC50-A2T requirements.
6.How does Aetrix verify that LM3S8962-EQC50-A2T is sourced from the original manufacturer or authorized distributors?
All LM3S8962-EQC50-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 LM3S8962-EQC50-A2T meets industry standards.
7.What is the process for return or replacement of LM3S8962-EQC50-A2T?
All LM3S8962-EQC50-A2T units undergo pre-shipment inspection (PSI). If there is an issue with LM3S8962-EQC50-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 LM3S8962-EQC50-A2T part is unused and in its original packaging.
Return procedure for LM3S8962-EQC50-A2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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