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Texas Instruments LM3S2620-IQC25-A2
- Part No.:
- LM3S2620-IQC25-A2
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
LM3S2620-IQC25-A2.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,154
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Product details
Overview
LM3S2620-IQC25-A2 from Texas Instruments is a 32-bit ARM Cortex-M3 microcontroller with 256 KB flash, 64 KB SRAM, integrated CAN 2.0A/B 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-IQC25-A2 datasheet, LM3S2620-IQC25-A2 pinout, LM3S2620-IQC25-A2 application, or LM3S2620-IQC25-A2 equivalent, key selection criteria include its integrated CAN interface, hibernation-optimized power management, dual UARTs with IrDA support, and hardware-accelerated PWM timing for motor drive control.
Technical Context
The LM3S2620-IQC25-A2 implements the ARM Cortex-M3 core with NVIC, SysTick, and MPU-enabling deterministic interrupt latency and memory protection. Its peripheral set includes a dedicated CAN controller compliant with ISO 11898-1, hibernation module with RTC and battery-backed RAM, and dual UARTs supporting SIR/IrDA protocols.
It integrates analog functions including an 8-channel 10-bit ADC with programmable sample sequencers and comparators with hysteresis. Clocking is managed via internal PLL, precision oscillator, and multiple gated clock domains-supporting dynamic power scaling across active, sleep, and hibernate modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, Thumb-2 instruction set, 50 MHz max operation |
| Flash Memory | 256 KB on-chip flash with 128-bit wide access and single-cycle read at 50 MHz |
| SRAM | 64 KB on-chip SRAM, zero-wait-state access, parity protection enabled |
| CAN Interface | One CAN 2.0A/B controller with 32 message objects, programmable bit timing, and loopback test mode |
| ADC | 8-channel 10-bit SAR ADC with 1 MSPS sampling rate and hardware-triggered sequencing |
| Hibernation Module | RTC with calendar support, 2 KB battery-backed RAM, wake-on-external-pin or RTC alarm |
| UARTs | Two UARTs with IrDA encoder/decoder, 16-byte FIFOs, and automatic baud-rate detection |
| Package | 100-pin LQFP (14 mm × 14 mm), RoHS-compliant, lead-free finish |
Pinout & Package
LM3S2620-IQC25-A2 is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments are defined per TI SPMS048I datasheet Rev I, validated for industrial temperature range (–40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Digital core (VDD), analog (VDDA), and CAN transceiver (VDDC) rails-require separate decoupling per section |
| GND, GNDA, GNDC | Ground returns | Isolated ground paths prevent noise coupling between digital, analog, and CAN domains |
| CAN0RX / CAN0TX | CAN physical layer interface | Differential receive/transmit pins for external CAN transceiver connection-no internal PHY |
| SSI0CLK / SSI0FSS / SSI0RX / SSI0TX | Synchronous serial interface | Four-pin SPI-compatible port supporting master/slave, frame sync, and multi-drop configurations |
| UART0RX / UART0TX / UART1RX / UART1TX | Asynchronous serial I/O | Two independent full-duplex UART channels with IrDA modulation capability |
| PH0 / PH1 / PH2 / PH3 | Hibernate module signals | External wake-up inputs (PH0–PH3), hibernate enable (HIB), and RTC crystal connections (XOSC0) |
Key Features
| Feature | Design Value |
|---|---|
| Hibernation-optimized power management | Sub-µA hibernate current with RTC running and 2 KB RAM retained-enables battery-powered remote nodes |
| Integrated CAN 2.0A/B controller | Hardware message filtering, 32 configurable message objects, and bit timing registers-reduces host CPU overhead in automotive/industrial networks |
| Dual UARTs with IrDA support | On-chip SIR encoder/decoder eliminates external ICs for infrared communication in HMI and diagnostic interfaces |
| Programmable ADC sequencer | Hardware-triggered 8-channel sampling with configurable priority and burst mode-supports closed-loop motor current sensing |
| Memory Protection Unit (MPU) | Configurable region-based access control for flash/SRAM-enables safe partitioning of firmware and application code |
| Nested Vectored Interrupt Controller (NVIC) | 82 interrupt sources with 8 priority levels and tail-chaining-guarantees sub-12-cycle interrupt latency for time-critical tasks |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Closed-loop BLDC motor drive in HVAC blowers or pump controllers with field-oriented control (FOC) requirements. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms, PWM generation with dead-time insertion, and current/voltage sensing via ADC. Use Value: Integrated 50 MHz Cortex-M3 core and hardware PWM timers reduce BOM count while meeting <1 µs current-loop update deadlines. | Use Scenario: Door module controller managing window lift, mirror adjustment, and interior lighting with CAN network integration. IC Role / Device Role / Timing Role: CAN node endpoint with message filtering, local GPIO control, and low-power hibernate during vehicle sleep mode. Use Value: Sub-µA hibernate current and integrated CAN controller enable compliance with ISO 16750-2 quiescent current requirements. |
| Smart Sensor Node | Embedded HMI Terminal |
Use Scenario: Battery-powered environmental sensor hub collecting temperature, humidity, and motion data for wireless transmission. IC Role / Device Role / Timing Role: Data acquisition engine with ADC, hibernation scheduling, and UART-to-RF bridge interface. Use Value: 2 KB battery-backed RAM preserves calibration data and event logs across power cycles without external EEPROM. | Use Scenario: Touchless control panel in medical equipment using IR remote input and status LED feedback. IC Role / Device Role / Timing Role: UART-based IrDA receiver/transmitter with GPIO-driven LED indicators and button debouncing logic. Use Value: On-chip SIR encoder/decoder eliminates discrete IR transceiver IC, reducing PCB area and component count by one device. |
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 Cortex-M4F core, 256 KB flash, 32 KB SRAM, no hibernation module, higher clock (80 MHz) | Lacks battery-backed RTC and hibernate-optimized power states; requires external RTC for long-term timekeeping | Select when floating-point math or higher CPU throughput is required, and hibernation current is not critical |
| STM32F103VET6 | ARM Cortex-M3 core, 512 KB flash, 64 KB SRAM, CAN 2.0B, but no integrated hibernation module or battery-backed RAM | Requires external RTC and backup capacitor/supercap for timekeeping during power loss | Select when larger flash capacity and broader ecosystem tooling are prioritized over ultra-low-power hibernate operation |
Compared with TM4C123GH6PM and STM32F103VET6, the LM3S2620-IQC25-A2 uniquely delivers sub-µA hibernate current with integrated RTC and 2 KB battery-backed RAM-making it optimal for battery-constrained edge nodes where timekeeping and state retention must persist without external components.
Availability
LM3S2620-IQC25-A2 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart sensor nodes, and embedded HMI terminals requiring stable component supply and long-term lifecycle support.
Supply support for LM3S2620-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 company headquartered in Dallas, Texas, specializing in analog, embedded processing, and connectivity technologies since 1930.
The Stellaris LM3S series was designed specifically for cost-sensitive, real-time embedded applications demanding integrated peripherals-including CAN, hibernation, and analog subsystems-in a single-chip solution for industrial and automotive markets.
FAQ
What is the maximum operating frequency of the LM3S2620-IQC25-A2?
The LM3S2620-IQC25-A2 operates at a maximum system clock frequency of 50 MHz. This is achieved using the internal PLL with a precision internal oscillator or external crystal source. The Cortex-M3 core executes instructions at this rate with zero-wait-state access to both flash and SRAM, enabling deterministic real-time performance for motor control and sensor processing tasks within the LM3S2620-IQC25-A2 design envelope.
Does the LM3S2620-IQC25-A2 include an integrated CAN transceiver?
No, the LM3S2620-IQC25-A2 includes only a CAN protocol controller compliant with CAN 2.0A/B standards-not a physical layer transceiver. External CAN transceivers such as the SN65HVD230 or TJA1042 must be used to interface with the CAN bus. The LM3S2620-IQC25-A2 provides dedicated CAN0RX and CAN0TX pins that connect directly to the transceiver's RXD and TXD lines, respectively.
What power modes does the LM3S2620-IQC25-A2 support?
The LM3S2620-IQC25-A2 supports three primary low-power modes: Sleep (CPU halted, peripherals active), Deep-Sleep (system clock gated, SRAM retained), and Hibernate (only hibernation module active, 2 KB RAM retained, RTC running). In hibernate mode, typical current consumption is less than 1.5 µA at 3.3 V, enabling multi-year battery life in remote sensor applications using the LM3S2620-IQC25-A2.
How many UART interfaces does the LM3S2620-IQC25-A2 have, and do they support IrDA?
The LM3S2620-IQC25-A2 integrates two independent UART modules (UART0 and UART1), each with full IrDA SIR encoding/decoding capability. Both support 16-byte FIFOs, automatic baud-rate detection, and hardware flow control. This enables direct infrared communication without external encoder ICs-ideal for diagnostic ports and touchless HMI in the LM3S2620-IQC25-A2 implementation.
Is the LM3S2620-IQC25-A2 pin-compatible with other Stellaris LM3S devices?
No, the LM3S2620-IQC25-A2 is not pin-compatible with other LM3S family members due to differences in peripheral mapping and pin function allocation-even within the same 100-pin LQFP package. For example, CAN0TX/CAN0RX appear on different pins in LM3S2965 or LM3S8962. Board layout must be verified against the specific LM3S2620-IQC25-A2 pinout in SPMS048I datasheet Rev I before design reuse.
LM3S2620-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:
- 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-IQC25-A2 FAQ
1.How can I place an order for LM3S2620-IQC25-A2 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S2620-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 LM3S2620-IQC25-A2 reliable?
The price and inventory of LM3S2620-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 LM3S2620-IQC25-A2 is usually 5 days.
3.What payment methods are accepted for LM3S2620-IQC25-A2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S2620-IQC25-A2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S2620-IQC25-A2?
LM3S2620-IQC25-A2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S2620-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 LM3S2620-IQC25-A2?
For technical support, including LM3S2620-IQC25-A2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S2620-IQC25-A2 requirements.
6.How does Aetrix verify that LM3S2620-IQC25-A2 is sourced from the original manufacturer or authorized distributors?
All LM3S2620-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 LM3S2620-IQC25-A2 meets industry standards.
7.What is the process for return or replacement of LM3S2620-IQC25-A2?
All LM3S2620-IQC25-A2 units undergo pre-shipment inspection (PSI). If there is an issue with LM3S2620-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 LM3S2620-IQC25-A2 part is unused and in its original packaging.
Return procedure for LM3S2620-IQC25-A2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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