My Inquiry
My Account
Texas Instruments LM3S2608-EQC50-A2
- Part No.:
- LM3S2608-EQC50-A2
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
LM3S2608-EQC50-A2.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,056
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM3S2608-EQC50-A2 from Texas Instruments is a 32-bit ARM Cortex-M3 microcontroller with 256 KB flash, 64 KB SRAM, integrated CAN, UART, I2C, SSI, ADC (10-bit, 8-channel), and hibernation module. It operates at 50 MHz and supports industrial motor control, sensor interfacing, and embedded automation systems.
For engineers reviewing the LM3S2608-EQC50-A2 datasheet, LM3S2608-EQC50-A2 pinout, LM3S2608-EQC50-A2 application, or LM3S2608-EQC50-A2 equivalent, key selection criteria include CAN 2.0A/B support, hibernation mode with RTC and battery-backed memory, 50 MHz CPU clock, 10-bit ADC sampling rate up to 1 MSPS, and QFP-100 package compatibility.
Technical Context
The LM3S2608-EQC50-A2 integrates an ARM Cortex-M3 core with NVIC, SysTick, MPU, and debug interfaces (JTAG/SWD). It features a dedicated hibernation module with real-time clock, battery-backed RAM, and wake-up on external event or RTC match.
Peripherals include two UARTs (one with IrDA/SIR), two SSI modules, one I2C master/slave, one dual-channel CAN controller, eight PWM outputs, and a 10-bit ADC with four sample sequencers - all directly memory-mapped and configurable via APB bus.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, runs at up to 50 MHz |
| Flash Memory | 256 KB on-chip flash with 128-bit wide interface and 128-byte erase blocks |
| SRAM | 64 KB on-chip SRAM with single-cycle access |
| ADC | 10-bit SAR ADC with 8 input channels, 1 MSPS max sample rate, 4 independent sequencers |
| CAN Interface | One CAN 2.0A/B-compliant controller with 32 message objects and programmable FIFO |
| Hibernation Module | Dedicated low-power domain with RTC, battery-backed 256-byte RAM, and wake-on-RTC/external-pin |
| Package | 100-pin LQFP (EQC), 14 mm × 14 mm, 0.5 mm pitch |
Pinout & Package
LM3S2608-EQC50-A2 is housed in a 100-pin LQFP (EQC) package with exposed thermal pad. Pin functions are multiplexed across GPIO banks A–G and dedicated peripheral pins for CAN, UART, SSI, I2C, ADC, and hibernation signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Separate analog (VDDA), digital core (VDDC), and I/O (VDD) rails for noise isolation |
| GND, GNDA, GNDC | Ground returns | Dedicated analog (GNDA) and core (GNDC) grounds minimize coupling noise |
| PD0/PD1 | CAN0RX/CAN0TX | Dedicated differential CAN transceiver interface pins with internal pull-ups |
| PA0–PA7 | SSI0CLK/SSI0FSS/SSI0RX/SSI0TX | Configurable SSI0 interface pins supporting master/slave SPI modes |
| PE0–PE3 | UART0RX/UART0TX/UART0CTS/UART0RTS | Hardware flow-controlled UART0 interface with IrDA modulation capability |
| PF0–PF4 | ADC0CH0–ADC0CH4 | Analog input channels for 10-bit ADC with programmable sample timing |
Key Features
| Feature | Design Value |
|---|---|
| Hibernation with RTC | Enters sub-1 µA sleep current state while maintaining RTC time and 256-byte battery-backed RAM |
| Dual CAN Controller | Single CAN module compliant with ISO 11898-1, supporting both standard and extended frames |
| Peripheral Integration | All peripherals mapped to APB bus with individual clock gating and reset control for power optimization |
| GPIO Flexibility | 100 I/O pins with individually configurable drive strength, slew rate, pull-up/down, and interrupt edge select |
| Debug & Trace | Full JTAG and SWD support with TPIU trace output for real-time instruction execution monitoring |
Applications
| Industrial Motor Control | Automated Sensor Hub |
|---|---|
Use Scenario: Closed-loop BLDC motor control in HVAC blowers or conveyor drives requiring precise timing and fault response. IC Role / Device Role / Timing Role: Real-time MCU executing FOC algorithms, managing PWM generation, reading encoder/ADC feedback, and handling CAN-based command interface. Use Value: Integrated 50 MHz Cortex-M3, eight PWM outputs, and CAN controller eliminate external timing ICs and reduce BOM count by 3+ components. | Use Scenario: Multi-sensor environmental monitoring node collecting temperature, humidity, pressure, and gas data for building automation. IC Role / Device Role / Timing Role: Central data aggregator with ADC, UART, I2C, and SSI interfaces synchronizing sensor reads and forwarding via CAN or RS-485. Use Value: On-chip 10-bit ADC with hardware averaging and four sequencers enables simultaneous sampling of 8 sensors without host CPU overhead. |
| Energy-Efficient Gateway | Factory Floor HMI Controller |
Use Scenario: Low-power field gateway aggregating Modbus RTU and CANopen devices into Ethernet/Wi-Fi backhaul. IC Role / Device Role / Timing Role: Protocol translation engine using UARTs and CAN, with hibernation between polling cycles to extend battery life. Use Value: Sub-1 µA hibernation current and RTC wake-up allow 5+ year battery operation in wireless gateways with periodic sensor polling. | Use Scenario: Panel-mounted operator interface controlling PLC I/O, displaying status, and logging events in discrete manufacturing cells. IC Role / Device Role / Timing Role: Embedded controller driving LCD segments, reading keypad inputs, storing logs in flash, and communicating via CAN to PLCs. Use Value: 256 KB flash supports firmware + graphics assets; 64 KB SRAM enables double-buffered UI rendering and real-time event buffering. |
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, FPU, enhanced CAN, and USB OTG - no hibernation module | Lacks battery-backed RTC and ultra-low-power hibernation; requires external RTC for timekeeping during deep sleep | Select when higher performance, floating-point math, or USB connectivity is required; not drop-in for hibernation-critical designs |
| STM32F103VET6 | ARM Cortex-M3 at 72 MHz, 512 KB flash, 64 KB SRAM, CAN 2.0B, but no dedicated hibernation module or battery-backed RAM | Requires external RTC and backup capacitor/supercap for timekeeping; higher active power consumption | Choose for cost-sensitive designs where hibernation current <1 µA is not mandatory and USB is unnecessary |
Compared with TM4C123GH6PM and STM32F103VET6, the LM3S2608-EQC50-A2 uniquely delivers certified sub-1 µA hibernation with integrated RTC and battery-backed memory - critical for battery-powered industrial nodes where firmware must retain time and state across multi-year deployments without external components.
Availability
LM3S2608-EQC50-A2 is available at Aetrix Electronics and suitable for industrial motor control, automated sensor hubs, energy-efficient gateways, and factory floor HMI controllers requiring stable component supply and long-term lifecycle support.
Supply support for LM3S2608-EQC50-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 over 90 years of innovation in industrial, automotive, and communications markets.
The Stellaris LM3S series was designed specifically for deterministic real-time control in resource-constrained industrial environments - emphasizing low-latency interrupt response, integrated analog/motor peripherals, and robust power management including hibernation.
FAQ
What is the maximum operating frequency of the LM3S2608-EQC50-A2?
The LM3S2608-EQC50-A2 operates at a maximum CPU frequency of 50 MHz, derived from its internal PLL or external crystal oscillator. This speed is fully supported across its entire temperature range (–40°C to +105°C) and voltage range (2.25 V to 2.75 V for VDDC), enabling deterministic real-time execution for motor control and sensor acquisition tasks in the LM3S2608-EQC50-A2.
Does the LM3S2608-EQC50-A2 support CAN FD?
No, the LM3S2608-EQC50-A2 implements a CAN 2.0A/B-compliant controller only, supporting standard (11-bit) and extended (29-bit) identifier frames at up to 1 Mbps. It does not support CAN FD features such as flexible data-rate, larger payloads, or CRC enhancements. For CAN FD, designers should consider newer TI parts like the TM4C129x series or external CAN FD transceivers paired with the LM3S2608-EQC50-A2's existing CAN peripheral.
What is the purpose of the hibernation module in the LM3S2608-EQC50-A2?
The hibernation module in the LM3S2608-EQC50-A2 provides a dedicated low-power domain that maintains RTC time, stores 256 bytes of battery-backed RAM, and wakes the system on RTC alarm or external pin transition - all while drawing less than 1 µA. This enables multi-year battery operation in remote sensor nodes and eliminates need for external RTC or backup power circuitry in the LM3S2608-EQC50-A2 design.
How many UART interfaces does the LM3S2608-EQC50-A2 include?
The LM3S2608-EQC50-A2 includes two UART modules: UART0 and UART1. UART0 supports full hardware flow control (RTS/CTS), IrDA modulation, and SIR encoding; UART1 supports basic transmit/receive and modem control signals. Both operate at baud rates up to 3 Mbps and feature 16-byte FIFOs, making them suitable for industrial serial communication in the LM3S2608-EQC50-A2.
Is the LM3S2608-EQC50-A2 pin-compatible with other Stellaris LM3S devices?
The LM3S2608-EQC50-A2 uses a 100-pin LQFP (EQC) package shared with several LM3S family members (e.g., LM3S2965, LM3S8962), but pin assignments differ significantly due to peripheral mix and routing constraints. While package footprint is identical, direct pin-to-pin replacement is not guaranteed - designers must verify signal mapping, power sequencing, and peripheral enable settings before substitution in the LM3S2608-EQC50-A2 layout.
LM3S2608-EQC50-A2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- Stellaris® ARM® Cortex®-M3S 2000
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- CANbus, I2C, IrDA, Microwire, 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:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LM3S2608-EQC50-A2 FAQ
1.How can I place an order for LM3S2608-EQC50-A2 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S2608-EQC50-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 LM3S2608-EQC50-A2 reliable?
The price and inventory of LM3S2608-EQC50-A2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3S2608-EQC50-A2 is usually 5 days.
3.What payment methods are accepted for LM3S2608-EQC50-A2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S2608-EQC50-A2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S2608-EQC50-A2?
LM3S2608-EQC50-A2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S2608-EQC50-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 LM3S2608-EQC50-A2?
For technical support, including LM3S2608-EQC50-A2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S2608-EQC50-A2 requirements.
6.How does Aetrix verify that LM3S2608-EQC50-A2 is sourced from the original manufacturer or authorized distributors?
All LM3S2608-EQC50-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 LM3S2608-EQC50-A2 meets industry standards.
7.What is the process for return or replacement of LM3S2608-EQC50-A2?
All LM3S2608-EQC50-A2 units undergo pre-shipment inspection (PSI). If there is an issue with LM3S2608-EQC50-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 LM3S2608-EQC50-A2 part is unused and in its original packaging.
Return procedure for LM3S2608-EQC50-A2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM3S2608-EQC50-A2 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
