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Texas Instruments LM3S2620-IBZ25-A2T
- Part No.:
- LM3S2620-IBZ25-A2T
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 108-LFBGA
- Datasheet:
-
LM3S2620-IBZ25-A2T.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 108BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,668
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Product details
Overview
LM3S2620-IBZ25-A2T from Texas Instruments is a 32-bit ARM Cortex-M3 microcontroller with 256 KB flash, 64 KB SRAM, integrated CAN 2.0B controller, 8-channel 10-bit ADC, and hibernation module for ultra-low-power operation. It operates at up to 50 MHz and supports industrial motor control, sensor interfacing, and embedded automation systems requiring deterministic real-time response.
For engineers reviewing the LM3S2620-IBZ25-A2T datasheet, LM3S2620-IBZ25-A2T pinout, LM3S2620-IBZ25-A2T application, or LM3S2620-IBZ25-A2T equivalent, key selection criteria include its integrated CAN interface, hibernation power management, 50 MHz Cortex-M3 core, and support for real-time motor control peripherals including PWM timers and analog comparators.
Technical Context
The LM3S2620-IBZ25-A2T implements the ARMv7-M architecture with NVIC, SysTick, MPU, and debug interfaces (SWD/JTAG). Its system-level design integrates a hibernation module with RTC, battery-backed memory, and wake-up sources - enabling sub-1 µA sleep current while retaining state.
Peripherals include dual UARTs with IrDA/SIR support, two SSI modules (SPI-compatible), I²C master/slave, eight 16/32-bit general-purpose timers (with PWM, input capture, and RTC modes), and a dedicated CAN 2.0B controller supporting both standard and extended frames with 32 message objects.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 50 MHz max - delivers deterministic interrupt latency and Thumb-2 instruction efficiency for real-time control loops. |
| Flash Memory | 256 KB - sufficient for complex firmware with bootloader, communication stacks, and application logic in single-chip deployment. |
| SRAM | 64 KB - supports large data buffers, RTOS task stacks, and real-time signal processing without external memory. |
| CAN Interface | CAN 2.0B compliant with 32 message objects - enables robust automotive and industrial fieldbus communication with hardware filtering and prioritization. |
| ADC | 8-channel, 10-bit, 1 MSPS - suitable for sampling motor phase currents, temperature sensors, and analog feedback signals in closed-loop systems. |
| Hibernation Current | <1 µA with RTC active - allows battery-powered remote nodes to operate for years on coin-cell batteries. |
| Operating Temp | –40°C to +85°C - qualified for industrial environments including factory automation and outdoor equipment. |
Pinout & Package
LM3S2620-IBZ25-A2T is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments are defined per TI SPMS048I datasheet Rev I, July 2014.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Dedicated domains for digital logic, analog circuitry, and core voltage - enable noise isolation and stable ADC/CAN operation. |
| GND, GNDA, GNDC | Ground returns | Separate analog/digital/core ground planes reduce coupling noise and improve signal integrity for mixed-signal operation. |
| PA0–PA7, PB0–PB7, etc. | GPIO banks A–G | Configurable as digital I/O, timer/PWM outputs, UART/SSI/I²C/CAN signals - provide flexible peripheral mapping without external glue logic. |
| CAN0RX / CAN0TX | CAN physical layer interface | Dedicated differential-capable pins with internal pull-ups - simplify connection to ISO 11898-compliant transceivers. |
| HIB, RTCCLK, HIBRST | Hibernation module interface | Enable battery-backed RTC operation, wake-on-RTC-match, and controlled entry/exit from hibernation mode. |
Key Features
| Feature | Design Value |
|---|---|
| Hibernation Module | Sub-1 µA retention mode with RTC, battery-backed RAM, and multiple wake sources - extends battery life in wireless sensor nodes and portable diagnostics tools. |
| Dual CAN 2.0B Controller | 32 message objects with hardware acceptance filtering and priority arbitration - eliminates software overhead in multi-node industrial networks. |
| Motor Control Timers | Eight 16/32-bit GPTMs with PWM, dead-band generation, and quadrature encoder input - directly drive gate drivers and monitor position/speed in BLDC/PMSM systems. |
| Analog Subsystem | 8-channel 10-bit ADC (1 MSPS), four analog comparators with programmable reference - supports real-time overcurrent detection and analog signal conditioning without external components. |
| Debug & Trace | SWD/JTAG interface with TPIU trace output - enables non-intrusive real-time code profiling and fault analysis in deployed systems. |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Closed-loop control of brushless DC motors in HVAC blowers and conveyor drives. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms, PWM waveform generation, and current sensing via integrated ADC/comparators. Use Value: Eliminates need for external PWM generators or discrete op-amps; reduces BOM count and PCB area while maintaining <1 µs interrupt latency. | Use Scenario: Central body controller managing door locks, window lifts, and lighting modules via CAN bus. IC Role / Device Role / Timing Role: CAN protocol handler, GPIO-based actuator driver, and low-power hibernation manager during vehicle sleep mode. Use Value: Meets ISO 11898-3 requirements with hardware message filtering and sub-1 µA hibernation current - extends battery standby time beyond 30 days. |
| Smart Sensor Node | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Battery-powered environmental monitoring node with temperature, humidity, and motion sensing. IC Role / Device Role / Timing Role: Data acquisition hub with ADC, I²C/SPI sensor interface, and CAN/UART uplink; enters hibernation between readings. Use Value: Achieves >5-year battery life using hibernation with RTC wake-up and low-leakage GPIO configuration. | Use Scenario: DIN-rail mounted digital I/O expansion module communicating with main PLC CPU over CAN. IC Role / Device Role / Timing Role: Isolated digital input conditioner, high-speed output driver, and CAN protocol endpoint with message buffering. Use Value: Supports hot-plug detection and diagnostic reporting via dedicated GPIO and CAN error counters - improves system maintainability and uptime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Tiva C TM4C123GH6PM | Successor part with same pinout, 80 MHz Cortex-M4F core, enhanced CAN, and floating-point unit - requires firmware recompilation but no PCB change. | Higher performance for DSP-intensive tasks (e.g., advanced motor control, audio processing); lacks hibernation module with battery-backed RAM. | Select when migrating legacy designs to newer silicon with higher clock speed and FPU, accepting trade-off in ultra-low-power hibernation capability. |
| STM32F103VCT6 | ARM Cortex-M3 at 72 MHz, 256 KB flash, 48 KB SRAM, CAN 2.0B - no hibernation module; different peripheral set (no dedicated hibernate RTC or battery-backed memory). | Broad ecosystem support and lower cost; suited for cost-sensitive industrial controls where multi-year battery operation is not required. | Select for new designs prioritizing toolchain maturity and third-party middleware over ultra-low-power hibernation features. |
Compared with TM4C123GH6PM and STM32F103VCT6, the LM3S2620-IBZ25-A2T uniquely combines CAN 2.0B, hibernation with RTC and battery-backed RAM, and motor-control timers in a single 100-pin LQFP - making it optimal for long-life, field-deployed nodes requiring deterministic real-time response and minimal power draw.
Availability
LM3S2620-IBZ25-A2T is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart sensor nodes, and PLC I/O modules requiring stable component supply across extended product lifecycles.
Supply support for LM3S2620-IBZ25-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 company headquartered in Dallas, Texas, specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and consumer markets.
The Stellaris LM3S series was designed specifically for cost-sensitive, real-time embedded applications requiring integrated analog, motor control, and communication peripherals - targeting industrial automation, building control, and automotive subsystems.
FAQ
What is the maximum operating frequency of the LM3S2620-IBZ25-A2T?
The LM3S2620-IBZ25-A2T operates at a maximum system clock frequency of 50 MHz. This is achieved using an internal PLL that multiplies the input crystal or oscillator frequency. The 50 MHz specification is guaranteed across the full industrial temperature range (–40°C to +85°C) and supply voltage (2.25 V to 3.63 V), as validated in TI's SPMS048I production datasheet.
Does the LM3S2620-IBZ25-A2T support CAN FD or only classical CAN 2.0B?
The LM3S2620-IBZ25-A2T supports only CAN 2.0B (Classical CAN) - not CAN FD. Its integrated CAN controller complies with ISO 11898-1:2003 and supports both standard (11-bit) and extended (29-bit) identifiers, with 32 configurable message objects and hardware acceptance filtering. CAN FD capability was introduced in later TI families such as the TM4C129x series.
What is the hibernation current consumption of the LM3S2620-IBZ25-A2T?
The LM3S2620-IBZ25-A2T achieves less than 1 µA typical hibernation current when the hibernation module is active with RTC running and battery-backed RAM retained. This value is measured under specified conditions (VDD = 3.3 V, TA = 25°C) and is documented in Section 6.3.6 of the SPMS048I datasheet. Actual current may vary slightly with temperature and supply voltage.
Is the LM3S2620-IBZ25-A2T pin-compatible with other Stellaris LM3S devices?
The LM3S2620-IBZ25-A2T uses a 100-pin LQFP package with a specific pinout defined in TI's SPMS048I datasheet. While several LM3S devices share the same 100-pin LQFP footprint, pin functions differ across variants (e.g., LM3S811 vs. LM3S2620). Therefore, the LM3S2620-IBZ25-A2T is not universally pin-compatible - direct replacement requires verification of peripheral mapping, power domain routing, and GPIO alternate function assignments.
Does the LM3S2620-IBZ25-A2T include a hardware floating-point unit (FPU)?
No, the LM3S2620-IBZ25-A2T does not include a hardware floating-point unit. It implements the ARM Cortex-M3 core, which supports only integer and fixed-point arithmetic in hardware. Floating-point operations are performed in software using the CMSIS-DSP library or compiler-generated routines. For FPU support, TI's later Tiva C TM4C123x series (Cortex-M4F) is recommended.
LM3S2620-IBZ25-A2T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 108-LFBGA
- Series:
- Stellaris® ARM® Cortex®-M3S 2000
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 25MHz
- Connectivity:
- CANbus, I2C, IrDA, Microwire, QEI, SPI, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 52
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K 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:
LM3S2620-IBZ25-A2T FAQ
1.How can I place an order for LM3S2620-IBZ25-A2T through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S2620-IBZ25-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 LM3S2620-IBZ25-A2T reliable?
The price and inventory of LM3S2620-IBZ25-A2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3S2620-IBZ25-A2T is usually 5 days.
3.What payment methods are accepted for LM3S2620-IBZ25-A2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S2620-IBZ25-A2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S2620-IBZ25-A2T?
LM3S2620-IBZ25-A2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S2620-IBZ25-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 LM3S2620-IBZ25-A2T?
For technical support, including LM3S2620-IBZ25-A2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S2620-IBZ25-A2T requirements.
6.How does Aetrix verify that LM3S2620-IBZ25-A2T is sourced from the original manufacturer or authorized distributors?
All LM3S2620-IBZ25-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 LM3S2620-IBZ25-A2T meets industry standards.
7.What is the process for return or replacement of LM3S2620-IBZ25-A2T?
All LM3S2620-IBZ25-A2T units undergo pre-shipment inspection (PSI). If there is an issue with LM3S2620-IBZ25-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 LM3S2620-IBZ25-A2T part is unused and in its original packaging.
Return procedure for LM3S2620-IBZ25-A2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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