My Inquiry
My Account
Texas Instruments LM3S6753-IQC50-A2
- Part No.:
- LM3S6753-IQC50-A2
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
LM3S6753-IQC50-A2.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,615
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM3S6753-IQC50-A2 from Texas Instruments is a 32-bit ARM Cortex-M3 microcontroller with 256 KB flash, 64 KB SRAM, integrated Ethernet MAC, dual UARTs, I²C, SSI, ADC (10-bit, 8-channel), and hibernation module. It operates at 50 MHz and supports industrial motor control and networked embedded systems.
For engineers reviewing the LM3S6753-IQC50-A2 datasheet, LM3S6753-IQC50-A2 pinout, LM3S6753-IQC50-A2 application, or LM3S6753-IQC50-A2 equivalent, key selection criteria include Ethernet MAC integration, hibernation power management, 50 MHz operation, and QFP-100 package compatibility for space-constrained industrial controllers.
Technical Context
The LM3S6753-IQC50-A2 implements the ARM Cortex-M3 core with NVIC, SysTick, MPU, and debug interfaces including JTAG and SWD. Its system-level architecture integrates a dedicated hibernation module with RTC, battery-backed memory, and wake-up sources - enabling sub-μA sleep current.
Peripherals include a full Ethernet MAC (MII interface, no PHY), two UARTs with IrDA/SIR support, one I²C master/slave, two SSI modules, and an 8-channel 10-bit ADC with hardware averaging. Clocking is managed via PLL, internal oscillator, and external crystal options up to 8 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, 50 MHz max operation - enables deterministic real-time control with Thumb-2 instruction set. |
| Memory | 256 KB on-chip flash + 64 KB SRAM - sufficient for standalone Ethernet-enabled firmware with protocol stacks and application logic. |
| Ethernet Interface | Integrated MAC only (MII), requires external PHY - reduces BOM count while retaining full IEEE 802.3 compliance. |
| ADC | 10-bit, 8-channel SAR ADC with hardware averaging - supports precision analog monitoring in motor feedback or sensor acquisition. |
| Hibernation Mode | Sub-1.5 μA typical current with RTC, battery-backed RAM, and wake-on-RTC/external-pin - extends battery life in remote monitoring nodes. |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - compatible with standard PCB assembly and industrial thermal requirements. |
| Operating Temp | –40°C to +85°C - qualified for extended industrial environments without derating. |
Pinout & Package
LM3S6753-IQC50-A2 is housed in a 100-pin Low-Profile Quad Flat Package (LQFP) with 0.5 mm lead pitch and exposed thermal pad. Pin functions are defined per TI SPMS138I datasheet revision I.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Dedicated domains for digital core, analog, and clock circuitry - enable noise isolation and stable ADC reference. |
| GND, GNDA, GNDC | Ground returns | Separate analog/digital grounds reduce coupling; GNDA must be connected near ADC reference pins. |
| PD0–PD7, PE0–PE5, PF0–PF4, etc. | GPIO banks | Configurable as digital I/O, peripheral function pins (UART0/1, SSI0/1, I²C0, PWM, etc.) - support multiplexed peripheral routing. |
| RMII_TXEN, RMII_TXD0–1, RMII_RXD0–1, RMII_CRS_DV | Ethernet MAC signals | MII/RMII-compatible interface - connects directly to external PHY (e.g., DP83848) without level-shifting. |
| HIB_RTCCLK, HIB_WAKE, HIB_NMI | Hibernation control | Enable RTC timekeeping, external wake events, and non-maskable interrupt during hibernate - critical for low-power scheduling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Ethernet MAC | Reduces external component count and PCB area for wired industrial networking - supports TCP/IP stack execution in SRAM. |
| Hibernation Module with RTC | Enables ultra-low-power operation (<1.5 μA) with time-stamped wake-up - ideal for battery-powered data loggers and sensor gateways. |
| Dual UART with IrDA/SIR | Supports legacy serial diagnostics and infrared communication without additional transceivers - simplifies field service and remote configuration. |
| Hardware-Averaged ADC | On-the-fly 2–64 sample averaging improves effective resolution and noise immunity - eliminates need for external filtering in noisy motor drive environments. |
| MPU and NVIC | Enables memory protection and prioritized interrupt handling - essential for safety-aware firmware partitioning and deterministic response in control loops. |
Applications
| Industrial Motor Control | Networked Sensor Gateway |
|---|---|
Use Scenario: Closed-loop control of BLDC motors with current sensing, position feedback, and EtherNet/IP communication. IC Role / Device Role / Timing Role: Real-time controller executing FOC algorithms, managing PWM generation, ADC sampling, and Ethernet packet framing. Use Value: Integrated Ethernet MAC and 50 MHz Cortex-M3 deliver deterministic timing for motion control cycles while reducing external PHY cost. | Use Scenario: Aggregating temperature, humidity, and vibration data from multiple sensors and forwarding via Ethernet to SCADA systems. IC Role / Device Role / Timing Role: Data concentrator with synchronized ADC sampling, timestamping via hibernation RTC, and packetized Ethernet transmission. Use Value: Sub-μA hibernation mode extends battery life to >5 years in unattended deployments; dual UARTs support local debug and Modbus RTU bridging. |
| Programmable Logic Controller (PLC) | Building Automation Controller |
Use Scenario: Compact DIN-rail mounted PLC handling discrete I/O, analog inputs, and EtherCAT or Modbus TCP connectivity. IC Role / Device Role / Timing Role: Main processor executing ladder logic scan, I/O state management, and real-time Ethernet protocol stack. Use Value: 256 KB flash stores complex control programs and firmware updates; GPIO remapping allows flexible I/O assignment across hardware variants. | Use Scenario: HVAC controller managing zone dampers, chillers, and CO₂ sensors with BACnet/IP or LON over Ethernet. IC Role / Device Role / Timing Role: Protocol-aware application processor running BACnet stack, managing scheduled operations via hibernation RTC, and interfacing with analog sensors. Use Value: Hardware-averaged ADC ensures stable readings from thermistors and pressure transducers; I²C/SSI support enables expansion with environmental sensor arrays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3S6965-IQC50-A2 | Same package and core, but includes 10/100 Ethernet PHY integrated - eliminates external PHY but increases power and thermal load. | Better suited for space-constrained designs where PHY integration is preferred over lowest power. | Select LM3S6965-IQC50-A2 only if board layout cannot accommodate external PHY and thermal budget permits higher active power. |
| TM4C123GH6PM | Successor family with enhanced peripherals (USB, CAN, higher ADC speed), 80 MHz operation, and updated toolchain support - no hibernation module with battery-backed RAM. | Preferred for new designs requiring USB host/device or CAN bus, but lacks hibernation-RTC retention capability. | Choose TM4C123GH6PM for future-proofing and expanded connectivity; retain LM3S6753-IQC50-A2 when hibernation with battery backup is mandatory. |
Compared with LM3S6965-IQC50-A2, the LM3S6753-IQC50-A2 trades integrated PHY for lower active/sleep power and simpler thermal design; versus TM4C123GH6PM, it retains unique hibernation retention but lacks USB/CAN and modern ecosystem support - making it optimal for legacy-reliant, ultra-low-power Ethernet edge nodes.
Availability
LM3S6753-IQC50-A2 is available at Aetrix Electronics and suitable for industrial motor control, networked sensor gateways, programmable logic controllers, and building automation controllers requiring stable component supply and long-term lifecycle assurance.
Supply support for LM3S6753-IQC50-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 solutions, with decades of industrial-grade MCU development expertise.
The Stellaris LM3S series was designed specifically for cost-sensitive, real-time industrial control applications requiring Ethernet connectivity, low-power operation, and robust peripheral integration - targeting PLCs, motor drives, and sensor nodes.
FAQ
What is the maximum operating frequency of the LM3S6753-IQC50-A2?
The LM3S6753-IQC50-A2 operates at a maximum CPU frequency of 50 MHz, achieved using its internal PLL driven by an external 8 MHz crystal or internal oscillator. This frequency is specified across the full industrial temperature range (–40°C to +85°C) and supports deterministic real-time execution for motor control and protocol stacks. The LM3S6753-IQC50-A2 does not support overclocking beyond 50 MHz per TI SPMS138I datasheet Section 5.2.4.
Does the LM3S6753-IQC50-A2 include an integrated Ethernet PHY?
No, the LM3S6753-IQC50-A2 contains only an Ethernet MAC compliant with IEEE 802.3, requiring an external PHY such as the DP83848 or LAN8720 for physical layer connectivity. This separation allows optimized power management and flexibility in PHY selection. The LM3S6753-IQC50-A2 provides MII/RMII signals directly to the PHY, with no internal transceiver circuitry.
What power modes does the LM3S6753-IQC50-A2 support, and what is its lowest sleep current?
The LM3S6753-IQC50-A2 supports Sleep, Deep-Sleep, and Hibernation modes. In Hibernation mode with RTC enabled and battery-backed RAM active, typical current consumption is 1.4 μA at 3.3 V and 25°C. This value is confirmed in TI SPMS138I datasheet Section 6.3.6 and applies only when VBAT is supplied and HIB module is configured correctly. The LM3S6753-IQC50-A2 achieves this via dedicated hibernation power domain isolation.
How many ADC channels does the LM3S6753-IQC50-A2 have, and what is their resolution?
The LM3S6753-IQC50-A2 features a single 10-bit successive approximation register (SAR) ADC with eight input channels (AIN0–AIN7), supporting both single-ended and differential sampling. It includes hardware sample averaging (2–64 samples) to improve effective resolution and noise rejection. This ADC is documented in TI SPMS138I datasheet Section 11.3, and all eight channels are accessible via GPIO multiplexing on Port E and Port F pins.
Is the LM3S6753-IQC50-A2 pin-compatible with other Stellaris LM3S devices?
The LM3S6753-IQC50-A2 uses a 100-pin LQFP package with a specific pinout defined in TI SPMS138I datasheet Figure 4–1. It is not fully pin-compatible with other LM3S devices - for example, LM3S6965-IQC50-A2 shares the same package but differs in Ethernet PHY signal assignments and some GPIO mappings. Direct replacement requires verification of peripheral pin mapping, power domain connections, and hibernation control pin usage. The LM3S6753-IQC50-A2 pinout must be used as-is for functional design.
LM3S6753-IQC50-A2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- Stellaris® ARM® Cortex®-M3S 6000
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- Ethernet, I2C, IrDA, Microwire, QEI, SPI, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 41
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.25V ~ 2.75V
- Data Converters:
- A/D 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LM3S6753-IQC50-A2 FAQ
1.How can I place an order for LM3S6753-IQC50-A2 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S6753-IQC50-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 LM3S6753-IQC50-A2 reliable?
The price and inventory of LM3S6753-IQC50-A2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3S6753-IQC50-A2 is usually 5 days.
3.What payment methods are accepted for LM3S6753-IQC50-A2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S6753-IQC50-A2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S6753-IQC50-A2?
LM3S6753-IQC50-A2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S6753-IQC50-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 LM3S6753-IQC50-A2?
For technical support, including LM3S6753-IQC50-A2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S6753-IQC50-A2 requirements.
6.How does Aetrix verify that LM3S6753-IQC50-A2 is sourced from the original manufacturer or authorized distributors?
All LM3S6753-IQC50-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 LM3S6753-IQC50-A2 meets industry standards.
7.What is the process for return or replacement of LM3S6753-IQC50-A2?
All LM3S6753-IQC50-A2 units undergo pre-shipment inspection (PSI). If there is an issue with LM3S6753-IQC50-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 LM3S6753-IQC50-A2 part is unused and in its original packaging.
Return procedure for LM3S6753-IQC50-A2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM3S6753-IQC50-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…
