Texas Instruments LM3S2110-IBZ25-A2

Overview

LM3S2110-IBZ25-A2 from Texas Instruments is a 32-bit ARM Cortex-M3 microcontroller with 25 MHz maximum CPU frequency, 64 KB flash memory, 24 KB SRAM, and integrated peripherals including UART, I²C, SSI, CAN, PWM, analog comparators, and GPIO. It operates across –40°C to +85°C industrial temperature range and targets embedded control in motor drives, industrial automation, and sensor nodes.

For engineers reviewing the LM3S2110-IBZ25-A2 datasheet, LM3S2110-IBZ25-A2 pinout, LM3S2110-IBZ25-A2 application, or LM3S2110-IBZ25-A2 equivalent, key selection criteria include its 25 MHz clock rating, 64 KB on-chip flash with 100 k-cycle endurance, CAN 2.0B compliance, dual analog comparators with internal reference, and QFP-100 package with 80 GPIOs.

Technical Context

The LM3S2110-IBZ25-A2 implements the ARM Cortex-M3 core with Thumb-2 instruction set, NVIC for nested interrupt handling, SysTick timer, and MPU for memory protection. It supports sleep modes (Sleep, Deep-Sleep) with wake-up via GPIO, UART, or timer events.

Peripherals include one CAN controller compliant with ISO 11898-1, two UARTs with IrDA/SIR support, two SSI modules supporting SPI/Microwire, one I²C master/slave interface, six general-purpose timers (including RTC-capable), and a 4-channel PWM module with dead-band generation and fault protection.

Key Specifications

Pinout & Package

LM3S2110-IBZ25-A2 is housed in a 100-pin LQFP (Low-Profile Quad Flat Package) with 0.5 mm pitch, 14 mm × 14 mm body size, and exposed thermal pad. Pinout validated per TI SPMS038I Rev I datasheet Section 4.3.1 and Table 4-1 (JTAG Interface Pins), Table 7-1 (GPIO Port Mapping), and Figure 1-3 (High-Level Block Diagram).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with LM3S2110-IBZ25-A2, the LM3S2610-IBZ25-A2 offers scalable memory for complex control stacks, while TM4C123GH6PM delivers architectural upgrades including FPU and longer-term availability-making LM3S2110-IBZ25-A2 optimal for stable, resource-constrained industrial deployments.

Availability

LM3S2110-IBZ25-A2 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and smart sensor node applications requiring stable component supply, long-lifecycle assurance, and consistent parametric performance across temperature extremes.

Supply support for LM3S2110-IBZ25-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 microcontrollers.

The Stellaris LM3S series was designed specifically for cost-sensitive, real-time embedded control applications demanding integrated peripherals, low power, and industrial-grade reliability - positioning LM3S2110-IBZ25-A2 for deterministic motor and sensor subsystems.

FAQ

What is the maximum operating frequency of the LM3S2110-IBZ25-A2?

The LM3S2110-IBZ25-A2 operates at a maximum CPU clock frequency of 25 MHz, as specified in the Texas Instruments SPMS038I datasheet Section 5.2.4 (Clock Control). This rating applies across the full –40°C to +85°C industrial temperature range and 3.0 V to 3.6 V supply voltage. The LM3S2110-IBZ25-A2 does not support PLL-based frequency multiplication beyond this limit.

Does the LM3S2110-IBZ25-A2 include an integrated CAN controller?

Yes, the LM3S2110-IBZ25-A2 integrates a single CAN 2.0B-compliant controller supporting bit rates up to 1 Mbps, 32 message objects, and hardware acceptance filtering. This is documented in Section 13 of the SPMS038I datasheet. The LM3S2110-IBZ25-A2 requires an external CAN transceiver (e.g., SN65HVD230) for physical layer connection.

What package type and pin count does the LM3S2110-IBZ25-A2 use?

The LM3S2110-IBZ25-A2 uses a 100-pin LQFP (Low-Profile Quad Flat Package) with 0.5 mm pitch and 14 mm × 14 mm body size, as confirmed in the SPMS038I datasheet Section 1.4.8 (Hardware Details) and mechanical drawings. It provides 80 GPIOs, with dedicated pins for JTAG, CAN, UART, SSI, I²C, PWM, and analog comparator functions.

How much on-chip memory does the LM3S2110-IBZ25-A2 have?

The LM3S2110-IBZ25-A2 contains 64 KB of on-chip flash memory and 24 KB of SRAM. Flash endurance is rated at 100,000 write/erase cycles, and both memory blocks retain data across the full industrial temperature range. These values are specified in Section 6 of the SPMS038I datasheet and apply directly to the LM3S2110-IBZ25-A2 variant.

Is the LM3S2110-IBZ25-A2 supported by current development tools?

The LM3S2110-IBZ25-A2 is supported by legacy StellarisWare software, Keil MDK-ARM v4.x, and IAR Embedded Workbench for ARM v6.x. While Texas Instruments discontinued active development after transitioning to the TM4C series, CMSIS-compliant HAL libraries and open-source GCC toolchains (e.g., GNU Arm Embedded Toolchain) remain functional for the LM3S2110-IBZ25-A2.