Texas Instruments LM3S8530-IBZ50-A2T
- Part No.:
- LM3S8530-IBZ50-A2T
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 108-LFBGA
- Datasheet:
-
LM3S8530-IBZ50-A2T.pdf
- Description:
- IC MCU 32BIT 96KB FLASH 108BGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
LM3S8530-IBZ50-A2T from Texas Instruments is a 32-bit ARM Cortex-M3 microcontroller with 256 KB flash, 64 KB SRAM, integrated CAN, Ethernet MAC, UART, I²C, SSI, and PWM peripherals, operating at 50 MHz - designed for real-time industrial control and networked embedded systems.
For engineers reviewing the LM3S8530-IBZ50-A2T datasheet, LM3S8530-IBZ50-A2T pinout, LM3S8530-IBZ50-A2T application, or LM3S8530-IBZ50-A2T equivalent, key selection criteria include its 100-pin LQFP package, 50 MHz CPU clock, CAN 2.0B compliance, integrated 10/100 Ethernet MAC, and support for deterministic real-time interrupt handling via NVIC.
Technical Context
The LM3S8530-IBZ50-A2T implements the ARMv7-M architecture with Thumb-2 instruction set, 3-stage pipeline, and hardware divide/MAC units. It integrates a full CAN 2.0B controller with 32 message objects and a 10/100 Ethernet MAC with MII interface - no external PHY required for basic operation.
Its system-level design includes a configurable NVIC with 64 interrupt lines, SysTick timer, watchdog, and power management supporting Sleep, Deep-Sleep, and Hibernate modes. Memory protection unit (MPU) enables secure partitioning of code and data regions in safety-critical applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 50 MHz max - delivers deterministic real-time execution with <12-cycle interrupt latency. |
| Flash Memory | 256 KB on-chip - sufficient for bootloader + application firmware with field-upgrade capability. |
| SRAM | 64 KB on-chip - supports large protocol stacks (e.g., TCP/IP, CANopen) without external memory. |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - compatible with standard reflow assembly and debug probe access. |
| CAN Interface | One CAN 2.0B controller with 32 message objects - enables robust automotive and industrial bus communication. |
| Ethernet | Integrated 10/100 MAC with MII - reduces BOM cost and PCB area vs. external MAC+PHY solutions. |
| Peripherals | 2×UART, 2×SSI, 2×I²C, 4×GPTM (16/32-bit), 1×WDT, GPIO with 8-bit masking - supports multi-protocol gateway designs. |
Pinout & Package
LM3S8530-IBZ50-A2T is housed in a 100-pin LQFP package (package code: IBZ). Pin assignments are defined per TI SPMS166I datasheet Section 15 (Pin Diagram) and Section 16.1 (100-Pin LQFP Signal Tables).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Dedicated analog/digital/core rails enable noise isolation for mixed-signal operation. |
| GND | Ground reference | Multiple GND pins distributed across package reduce ground bounce in high-speed digital switching. |
| PD0–PD7, PE0–PE5, PF0–PF4, etc. | GPIO with alternate functions | Each port supports up to 8 alternate peripheral mappings (e.g., UART0RX/TX, CAN0RX/TX, SSI0CLK) |
| CRS, RXD0, TXD0, CAN0RX, CAN0TX | Dedicated peripheral I/O | Hardwired signals for Ethernet MII, UART0, and CAN0 eliminate software configuration overhead. |
| nRST, nWAKE | Reset and wake control | Asynchronous reset input and wake-from-hibernate pin support fail-safe recovery and low-power operation. |
Key Features
| Feature | Design Value |
|---|---|
| ARM Cortex-M3 core with NVIC | 64 interrupt lines with programmable priority enable precise real-time response to CAN/Ethernet events. |
| Integrated 10/100 Ethernet MAC | Reduces component count by eliminating external MAC; MII interface allows flexible PHY selection. |
| CAN 2.0B controller with 32 message objects | Supports concurrent transmission/reception of multiple CAN IDs without CPU polling overhead. |
| Memory Protection Unit (MPU) | Enables runtime enforcement of memory access permissions - critical for IEC 61508 SIL2-compliant firmware. |
| Hardware CRC generator | Accelerates checksum calculation for flash updates and communication frame integrity verification. |
Applications
| Industrial PLC Controller | Automotive Diagnostic Tool |
|---|---|
Use Scenario: Compact, DIN-rail-mounted PLC executing ladder logic and communicating over CAN bus with sensors/actuators. IC Role / Device Role / Timing Role: Main application processor managing I/O scanning, CAN messaging, and real-time task scheduling. Use Value: On-chip 256 KB flash stores full control program; 50 MHz Cortex-M3 ensures sub-millisecond scan cycle times. | Use Scenario: Handheld OBD-II scanner reading vehicle ECU data via CAN and displaying results on local LCD. IC Role / Device Role / Timing Role: Central MCU interfacing with CAN transceiver, USB-to-serial bridge, and display driver. Use Value: Integrated CAN controller eliminates external CAN controller IC; UART + USB support enables PC connectivity. |
| Building Automation Gateway | Networked Motor Drive Interface |
Use Scenario: Edge gateway translating Modbus RTU (via UART) to Ethernet-based BACnet/IP for HVAC control networks. IC Role / Device Role / Timing Role: Protocol translation engine with dual-network interface (CAN/UART + Ethernet MAC). Use Value: Integrated 10/100 MAC and dual UARTs allow simultaneous serial and Ethernet communication without external controllers. | Use Scenario: Closed-loop motor controller receiving speed commands over CAN and driving H-bridge via PWM outputs. IC Role / Device Role / Timing Role: Real-time motion controller generating synchronized PWM waveforms and monitoring current feedback. Use Value: Four general-purpose timers support independent PWM generation for 3-phase inverters; CAN interface enables command synchronization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3S8962-IBZ50-A2T | Same core, package, and clock; adds 1 MB flash and 96 KB SRAM - no Ethernet MAC. | Better suited for large firmware images without networking; lacks integrated Ethernet. | Select when higher code storage is needed but Ethernet is handled externally or omitted. |
| TM4C123GH6PM | Successor family; same Cortex-M4F core, 80 MHz, 256 KB flash, 32 KB SRAM, integrated Ethernet MAC and CAN. | Includes FPU and enhanced peripheral set; requires updated toolchain and HAL. | Choose for new designs requiring floating-point math or extended lifecycle support beyond LM3S series. |
Compared with LM3S8530-IBZ50-A2T, LM3S8962-IBZ50-A2T trades Ethernet capability for larger memory, while TM4C123GH6PM offers architectural upgrades (Cortex-M4F, FPU) and continued TI support - both require careful evaluation of peripheral compatibility and software migration effort.
Availability
LM3S8530-IBZ50-A2T is available at Aetrix Electronics and suitable for industrial automation, automotive diagnostics, building management systems, and networked motor control requiring stable component supply and long-term obsolescence planning.
Supply support for LM3S8530-IBZ50-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 leader specializing in analog, embedded processing, and connectivity technologies with decades of industrial and automotive qualification experience.
The Stellaris LM3S series was engineered for deterministic real-time control in resource-constrained, network-connected embedded systems - emphasizing integrated communication peripherals, low-latency interrupt response, and industrial temperature reliability.
FAQ
What is the maximum operating frequency of the LM3S8530-IBZ50-A2T?
The LM3S8530-IBZ50-A2T operates at a maximum CPU clock frequency of 50 MHz, as specified in the Texas Instruments SPMS166I datasheet. This frequency is achieved using the internal PLL driven from the main oscillator or external crystal. The device maintains full peripheral functionality and timing specifications at this rated speed across the industrial temperature range (–40°C to +85°C).
Does the LM3S8530-IBZ50-A2T include an integrated Ethernet PHY?
No, the LM3S8530-IBZ50-A2T integrates only the 10/100 Ethernet MAC layer. An external PHY chip (e.g., DP83848) is required for physical-layer signaling. The device provides a standard MII interface with all necessary control, status, and data signals routed to dedicated pins in the 100-pin LQFP package.
How many CAN message objects does the LM3S8530-IBZ50-A2T support?
The LM3S8530-IBZ50-A2T supports 32 message objects in its integrated CAN 2.0B controller. Each object can be independently configured for transmit or receive, with programmable ID masking, direction, and priority - enabling efficient handling of multiple CAN identifiers without CPU intervention.
What debug interfaces are supported by the LM3S8530-IBZ50-A2T?
The LM3S8530-IBZ50-A2T supports JTAG and SWD (Serial Wire Debug) interfaces for programming and real-time debugging. The JTAG TAP controller is fully compliant with IEEE 1149.1 and enables boundary-scan testing, flash programming, and full-core visibility via standard debug probes such as TI XDS100v3 or Segger J-Link.
Is the LM3S8530-IBZ50-A2T pin-compatible with other LM3S devices in the same package?
LM3S8530-IBZ50-A2T shares the 100-pin LQFP (IBZ) footprint with several other LM3S devices (e.g., LM3S8962, LM3S811), but pin functions differ significantly across variants. Signal mapping must be verified per device datasheet - for example, CAN0TX appears on PB5 in LM3S8530 but on PD6 in LM3S8962. No drop-in replacement is guaranteed without schematic review.
LM3S8530-IBZ50-A2T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 108-LFBGA
- Series:
- Stellaris® ARM® Cortex®-M3S 8000
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- CANbus, Ethernet, I2C, IrDA, Microwire, SPI, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 35
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 64K 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:
LM3S8530-IBZ50-A2T FAQ
1.How can I place an order for LM3S8530-IBZ50-A2T through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S8530-IBZ50-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 LM3S8530-IBZ50-A2T reliable?
The price and inventory of LM3S8530-IBZ50-A2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3S8530-IBZ50-A2T is usually 5 days.
3.What payment methods are accepted for LM3S8530-IBZ50-A2T?
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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 LM3S8530-IBZ50-A2T?
For technical support, including LM3S8530-IBZ50-A2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S8530-IBZ50-A2T requirements.
6.How does Aetrix verify that LM3S8530-IBZ50-A2T is sourced from the original manufacturer or authorized distributors?
All LM3S8530-IBZ50-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 LM3S8530-IBZ50-A2T meets industry standards.
7.What is the process for return or replacement of LM3S8530-IBZ50-A2T?
All LM3S8530-IBZ50-A2T units undergo pre-shipment inspection (PSI). If there is an issue with LM3S8530-IBZ50-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 LM3S8530-IBZ50-A2T part is unused and in its original packaging.
Return procedure for LM3S8530-IBZ50-A2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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