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Texas Instruments LM3S2110-IQC25-A2
- Part No.:
- LM3S2110-IQC25-A2
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
LM3S2110-IQC25-A2.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LM3S2110-IQC25-A2 from Texas Instruments is a 32-bit ARM Cortex-M3 microcontroller with 64 KB Flash, 24 KB SRAM, and integrated CAN, UART, I2C, SSI, PWM, analog comparators, and GPIOs. It operates at up to 25 MHz, supports 3.3 V supply, and targets real-time industrial control and motor drive applications requiring deterministic timing and on-chip communication peripherals.
For engineers reviewing the LM3S2110-IQC25-A2 datasheet, LM3S2110-IQC25-A2 pinout, LM3S2110-IQC25-A2 application, or LM3S2110-IQC25-A2 equivalent, key selection criteria include its 25 MHz max CPU frequency, integrated CAN 2.0B controller, 12-bit analog comparator inputs, 8-channel PWM with dead-band generation, and QFP-100 package with 70 GPIOs.
Technical Context
The LM3S2110-IQC25-A2 implements the ARM Cortex-M3 core with NVIC, SysTick, and MPU, enabling deterministic interrupt handling and memory protection in embedded real-time systems. It integrates a programmable 25 MHz system clock derived from an internal precision oscillator or external crystal, with configurable PLL for peripheral clock domains.
Its peripheral set includes one CAN 2.0B controller with 32 message objects, two UARTs (one with IrDA/SIR), one I2C master/slave, one SSI master/slave, eight 16-bit general-purpose timers (with RTC mode), and a dedicated PWM module supporting complementary outputs and fault shutdown-designed for closed-loop motor control and industrial automation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, Thumb-2 instruction set, 25 MHz max operation |
| Memory | 64 KB on-chip Flash (programmable in 1 KB sectors), 24 KB SRAM |
| Operating Voltage | 3.0 V to 3.6 V - compatible with standard 3.3 V logic and power rails |
| Temperature Range | –40°C to +85°C - qualified for industrial ambient environments |
| Package | 100-pin LQFP (14 mm × 14 mm), 0.5 mm pitch, RoHS-compliant |
| Peripherals | 1× CAN 2.0B, 2× UART, 1× I2C, 1× SSI, 8× GPTM, 1× PWM (8-channel), 2× analog comparator |
| GPIO | 70 digital I/O pins with programmable pull-up/down, slew rate control, and interrupt capability |
Pinout & Package
LM3S2110-IQC25-A2 is housed in a 100-pin Low-Profile Quad Flat Package (LQFP) with 0.5 mm lead pitch and exposed thermal pad. Pinout conforms to TI's LM3S2110 family pin assignment for QFP-100, verified against SPMS038I datasheet revision I (July 2014).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Digital (VDD), analog (VDDA), and core (VDDC) rails - require separate 3.3 V filtering per section |
| GND, GNDA, GNDC | Ground returns | Analog ground (GNDA) must be isolated from digital ground to preserve ADC/comparator accuracy |
| PD0–PD7, PE0–PE7, PF0–PF4, etc. | General-purpose I/O | 70 total GPIOs; many support alternate functions (UART0TX, CAN0RX, PWM0, etc.) via GPIO AFSEL register |
| OSC0, OSC1 | Clock input terminals | Accept 1–25 MHz crystal or external clock source for system oscillator |
| nRST | Active-low reset input | Asynchronous reset pin - asserted low resets CPU, peripherals, and NVIC state |
| JTAG TCK/TMS/TDI/TDO/nTRST | Debug interface signals | Supports full SWD/JTAG debug access; nTRST optional but recommended for reliable initialization |
Key Features
| Feature | Design Value |
|---|---|
| CAN 2.0B Controller | 32 message object RAM with mask-based filtering - enables robust fieldbus communication in motor drives and PLCs |
| Dual UART with IrDA/SIR | One UART supports infrared data transmission per IrDA 1.4 spec - suitable for wireless HMI and diagnostic interfaces |
| Programmable PWM Module | 8-channel output with independent period/duty control, dead-band insertion, and fault shutdown - meets BLDC/PMSM commutation timing requirements |
| Analog Comparators | Two rail-to-rail comparators with internal voltage reference (1.65 V) - enable overvoltage/undervoltage detection without external components |
| Memory Protection Unit (MPU) | Configurable region-based memory access control - enforces privilege separation between firmware layers in safety-critical tasks |
Applications
| Industrial Motor Control | PLC Communication Node |
|---|---|
Use Scenario: Closed-loop speed/torque control of 3-phase BLDC motors using space-vector PWM and current sensing feedback. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, generation of synchronized PWM outputs, and sampling of analog comparators for overcurrent protection. Use Value: Integrated 25 MHz Cortex-M3 core and hardware PWM with dead-band ensures sub-microsecond timing precision required for <10 µs switching synchronization. | Use Scenario: Fieldbus gateway connecting Modbus RTU devices to CANopen networks in distributed I/O subsystems. IC Role / Device Role / Timing Role: Protocol translation engine with dual UART (Modbus) and CAN 2.0B (CANopen) interfaces operating concurrently under RTOS scheduling. Use Value: On-chip CAN controller with 32 message objects enables concurrent handling of 16+ CAN identifiers without host CPU overhead. |
| Embedded HMI Terminal | Power Supply Monitor |
Use Scenario: Local operator interface with LCD display, keypad, and IR remote receiver in HVAC control panels. IC Role / Device Role / Timing Role: System controller managing display refresh, button scan, and IrDA-based configuration updates via UART0. Use Value: Integrated IrDA-capable UART eliminates need for external transceiver IC, reducing BOM count and board area. | Use Scenario: Real-time monitoring of DC bus voltage and auxiliary rail integrity in industrial SMPS units. IC Role / Device Role / Timing Role: Analog comparator-driven fault detector triggering immediate PWM disable and latched alert via GPIO interrupt. Use Value: Internal 1.65 V reference and rail-to-rail comparators allow direct high-side/low-side voltage threshold detection without external resistive dividers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3S2678-IQC25-A2 | Same core and package; adds 10-bit 8-channel ADC and USB 2.0 device interface | Required when USB connectivity or analog sensor acquisition is needed beyond comparator-level monitoring | Select LM3S2678-IQC25-A2 only if USB or multi-channel ADC functionality is mandatory - otherwise LM3S2110-IQC25-A2 offers lower cost and smaller firmware footprint |
| TM4C123GH6PM | Successor series; 80 MHz Cortex-M4F, 256 KB Flash, 32 KB SRAM, enhanced CAN and PWM features | Required for higher computational throughput, floating-point math, or extended peripheral scalability | Choose TM4C123GH6PM for new designs needing performance headroom or long-term roadmap continuity; LM3S2110-IQC25-A2 remains viable for stable, cost-sensitive industrial deployments |
Compared with LM3S2678-IQC25-A2 and TM4C123GH6PM, the LM3S2110-IQC25-A2 delivers optimal balance of CAN-enabled real-time control, minimal peripheral overhead, and proven qualification for industrial temperature operation - making it ideal for legacy-compatible or resource-constrained motor interface nodes where USB or ADC are unnecessary.
Availability
LM3S2110-IQC25-A2 is available at Aetrix Electronics and suitable for industrial motor control, PLC communication nodes, embedded HMI terminals, and power supply monitors requiring stable component supply across extended production lifecycles.
Supply support for LM3S2110-IQC25-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 leader specializing in analog, embedded processing, and connectivity technologies, with decades of experience in industrial and automotive-grade microcontrollers.
The Stellaris LM3S series was designed specifically for deterministic real-time control in industrial automation, motor drives, and building systems - emphasizing integrated CAN, PWM, and analog monitoring with ARM Cortex-M3 efficiency.
FAQ
What is the maximum operating frequency of the LM3S2110-IQC25-A2?
The LM3S2110-IQC25-A2 operates at a maximum CPU frequency of 25 MHz, as specified in the SPMS038I datasheet. This frequency is achieved using the internal precision oscillator or an external crystal with PLL multiplication. The 25 MHz rating applies across the full –40°C to +85°C industrial temperature range and 3.0 V to 3.6 V supply voltage, ensuring consistent real-time performance in demanding environments. All peripherals-including CAN, UART, and PWM-are fully functional at this clock rate.
Does the LM3S2110-IQC25-A2 support CAN FD or only classical CAN?
The LM3S2110-IQC25-A2 supports only Classical CAN (ISO 11898-1, CAN 2.0B), not CAN FD. Its integrated CAN controller implements version 2.0B with 29-bit identifier support and 32 message objects, but lacks the variable bit-rate, extended data length, and CRC enhancements defined in CAN FD. For CAN FD applications, designers should consider newer TI families such as the TM4C129x or C2000 Delfino series. The LM3S2110-IQC25-A2 remains appropriate for legacy CAN networks in industrial machinery and motor drives.
How many GPIO pins does the LM3S2110-IQC25-A2 provide, and are they 5 V tolerant?
The LM3S2110-IQC25-A2 provides 70 GPIO pins in its 100-pin LQFP package, with multiple port groups (Port A through Port F) and configurable alternate functions. These pins are not 5 V tolerant: they operate strictly at 3.3 V logic levels and must not be exposed to voltages exceeding VDD + 0.3 V (i.e., ~3.9 V). External level-shifting circuitry is required for interfacing with 5 V peripherals. Each GPIO supports programmable pull-up/pull-down, slew rate control, and edge-triggered interrupts - critical for robust industrial I/O handling.
Is there an internal voltage reference for the analog comparators in the LM3S2110-IQC25-A2?
Yes, the LM3S2110-IQC25-A2 includes an internal 1.65 V precision voltage reference for its two analog comparators. This reference is stable across temperature and supply voltage variations and can be selected as either comparator input or reference source via the CMSC register. It eliminates the need for external reference ICs or resistor dividers in overvoltage/undervoltage detection circuits. The comparators also support rail-to-rail input operation and programmable hysteresis - enabling reliable threshold detection in power monitoring and fault-safety applications using the LM3S2110-IQC25-A2.
What debug interface does the LM3S2110-IQC25-A2 support, and is SWD available?
The LM3S2110-IQC25-A2 supports both JTAG and Serial Wire Debug (SWD) interfaces via the same physical pins (TCK, TMS, TDI, TDO, nTRST). SWD mode is enabled by asserting SWCLK and SWDIO signals on TCK and TMS respectively, with debug access handled by TI's Stellaris ICDI or third-party CMSIS-DAP adapters. Full NVIC register visibility, flash programming, and real-time variable inspection are supported. The LM3S2110-IQC25-A2 does not require external debug hardware beyond a standard ARM Cortex-M3 debugger - simplifying development and field firmware updates.
LM3S2110-IQC25-A2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- Stellaris® ARM® Cortex®-M3S 2000
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 25MHz
- Connectivity:
- CANbus, I2C, IrDA, Microwire, SPI, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 40
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LM3S2110-IQC25-A2 FAQ
1.How can I place an order for LM3S2110-IQC25-A2 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S2110-IQC25-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 LM3S2110-IQC25-A2 reliable?
The price and inventory of LM3S2110-IQC25-A2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3S2110-IQC25-A2 is usually 5 days.
3.What payment methods are accepted for LM3S2110-IQC25-A2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S2110-IQC25-A2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S2110-IQC25-A2?
LM3S2110-IQC25-A2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S2110-IQC25-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 LM3S2110-IQC25-A2?
For technical support, including LM3S2110-IQC25-A2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S2110-IQC25-A2 requirements.
6.How does Aetrix verify that LM3S2110-IQC25-A2 is sourced from the original manufacturer or authorized distributors?
All LM3S2110-IQC25-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 LM3S2110-IQC25-A2 meets industry standards.
7.What is the process for return or replacement of LM3S2110-IQC25-A2?
All LM3S2110-IQC25-A2 units undergo pre-shipment inspection (PSI). If there is an issue with LM3S2110-IQC25-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 LM3S2110-IQC25-A2 part is unused and in its original packaging.
Return procedure for LM3S2110-IQC25-A2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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