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HomeProductsIntegrated Circuits (ICs)Embedded - MicroprocessorsOMAPL138AZWT3
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OMAPL138AZWT3 - Texas Instruments

Manufacturer Part Number
OMAPL138AZWT3
Manufacturer
Texas Instruments
Allelco Part Number
32D-OMAPL138AZWT3
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
11,990 pcs available, New & Original
Parts Description
IC APPLICATIONS PROC LP 361NFBGA
Package
361-NFBGA (16x16)
Data sheet
OMAPL138AZWT3.pdf
RoHs Status
ROHS3 Compliant
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Specifications

OMAPL138AZWT3 Tech Specifications
Texas Instruments - OMAPL138AZWT3 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - OMAPL138AZWT3

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - I/O 1.8V, 3.3V
USB USB 1.1 + PHY (1), USB 2.0 + PHY (1)
Supplier Device Package 361-NFBGA (16x16)
Speed 300MHz
Series OMAP-L1x
Security Features Boot Security, Cryptography
SATA SATA 3Gbps (1)
RAM Controllers SDRAM
Package / Case 361-LFBGA
Package Tray
Product Attribute Attribute Value
Operating Temperature 0°C ~ 90°C (TJ)
Number of Cores/Bus Width 1 Core, 32-Bit
Mounting Type Surface Mount
Graphics Acceleration No
Ethernet 10/100Mbps (1)
Display & Interface Controllers LCD
Core Processor ARM926EJ-S
Co-Processors/DSP Signal Processing; C674x, System Control; CP15
Base Product Number OMAPL138
Additional Interfaces HPI, I²C, McASP, McBSP, MMC/SD, SPI, UART

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN 3A991A2
HTSUS 8542.31.0001

Parts Introduction

OMAPL138AZWT3 Image
OMAPL138AZWT3 (1)

Manufacturer Part Number

OMAPL138AZWT3

Manufacturer

Texas Instruments

Introduction

The OMAPL138AZWT3 is an embedded microprocessor belonging to the OMAP-L1x series designed for multimedia applications.

Product Features and Performance

Core Processor: ARM926EJ-S

300MHz operational speed

Co-Processors/DSP: Signal Processing, System Control

SDRAM memory controller support

No graphics acceleration

Display controller: LCD

Networking: 10/100Mbps Ethernet

Storage interfaces: SATA 3Gbps

USB support: USB 1.1 and USB 2.0 with PHY

Dual voltage I/Os: 1.8V, 3.3V

Operating Temperature Range: 0°C ~ 90°C (TJ)

Product Advantages

Integrated signal processing for multimedia applications

High-speed connectivity options with Ethernet, SATA, and USB

A suitable option for applications requiring a combination of DSP and microcontroller tasks

Key Technical Parameters

32-Bit Single Core ARM926EJ-S at 300MHz

SDRAM controller, Ethernet 10/100, SATA 3Gbps

Operating Temperature: 0°C ~ 90°C

Surface mount 361-LFBGA package

Security features including boot security and cryptography

Quality and Safety Features

Robust security features for boot security and encryption

Tested operational temperature range for high reliability

Compatibility

Compatible with an array of peripherals and interfaces such as HPI, I2C, McASP, McBSP, MMC/SD, SPI, UART

Application Areas

Multimedia applications

Industrial automation

Communication infrastructure

Medical devices

Product Lifecycle

Status: Obsolete

Replacement options or upgrades may be limited or require product redesign

Users should seek alternative solutions for long-term projects

Several Key Reasons to Choose This Product

Integrated DSP for enhanced signal processing capabilities

Multiple communication interfaces provide versatility in application

Strong security features for application integrity

Proven reliability from Texas Instruments

Ideal for applications requiring both ARM and DSP processing in one package

Frequently Asked Questions(FAQ)

How does the OMAPL138AZWT3 compare to other processors in the OMAP-L1x series when selecting a device for embedded systems with integrated LCD and Ethernet interfaces?
The OMAPL138AZWT3 features a 300MHz ARM926EJ-S core and includes both a C674x DSP and CP15 system control coprocessor, which provides enhanced signal processing and system management compared to some lower-performance variants in the OMAP-L1x line. While other members of the series may operate at reduced clock speeds or lack certain interface combinations, the OMAPL138AZWT3 uniquely integrates a full-speed 10/100Mbps Ethernet controller alongside an LCD display controller and dual USB ports (one 1.1 and one 2.0 with PHY), making it particularly suitable for applications requiring real-time data handling and graphical output without external bridging logic.
What are the key considerations when powering the OMAPL138AZWT3 in industrial temperature environments?
The OMAPL138AZWT3 is rated for operation from 0°C to 90°C (TJ), which aligns with typical commercial and extended-industrial ranges but falls short of true automotive or military-grade specifications. In designs targeting high-reliability or harsh-environment deployment, thermal modeling must account for junction-to-ambient dissipation under sustained load. Given its 300MHz operating frequency and concurrent execution of CPU, DSP, and peripheral tasks, dynamic power consumption can approach several hundred milliwatts, necessitating careful PCB layout and heatsinking if ambient temperatures near the upper limit are expected during continuous operation.
Can the OMAPL138AZWT3 support secure boot and cryptographic operations natively, and how does this affect system-level security design?
Yes, the OMAPL138AZWT3 incorporates hardware-based security features including boot security and cryptography accelerators, enabling secure firmware initialization and encrypted communication without relying solely on software implementations. This reduces exposure to side-channel attacks and simplifies compliance with standards requiring tamper resistance. Designers should still implement additional layers such as secure key storage and integrity checks, but the presence of dedicated cryptographic engines significantly lowers the burden on general-purpose CPU resources during authentication or encryption workflows.
How many I/O voltage domains does the OMAPL138AZWT3 require, and what implications does this have for power supply design?
The OMAPL138AZWT3 operates across two primary I/O voltage levels: 1.8V and 3.3V. This dual-voltage requirement means the design must include regulated supplies capable of delivering stable voltages to different banks of GPIOs, memory controllers, and peripherals like UARTs or SPI buses. Failure to properly isolate noisy digital loads from sensitive analog circuits—such as those connected to McBSP or McASP—can lead to increased jitter or EMI issues. Therefore, decoupling strategies and level-shifter placement become critical during PCB layout to maintain signal integrity across mixed-voltage boundaries.
Is the OMAPL138AZWT3 suitable for multimedia applications requiring simultaneous audio, video, and network streaming?
While the OMAPL138AZWT3 contains a C674x DSP optimized for real-time signal processing and supports multiple serial interfaces like McASP and McBSP for audio, its ARM926EJ-S core runs at only 300MHz, which limits raw throughput for complex video decoding or high-bitrate encoding. Additionally, the absence of dedicated video codecs or hardware graphics acceleration constrains it to lightweight graphical interfaces via the integrated LCD controller. Thus, while feasible for moderate-resolution displays and low-to-mid-bandwidth audio streaming over the onboard Ethernet, it is not ideal for full HD video processing without significant offloading or external co-processors.
What are the main differences between the OMAPL138AZWT3 and its substitute variant OMAPL138EZWT3?
The OMAPL138EZWT3 is listed as a substitute for the OMAPL138AZWT3, implying minor variations possibly related to revision status, manufacturing process, or qualification level rather than functional changes. Typically, such substitutions occur within the same package and pinout, allowing drop-in replacement in existing layouts. However, designers should verify timing margins and thermal profiles under identical workloads, especially since slight differences in silicon characterization could impact worst-case performance in time-critical applications involving the HPI or SPI interfaces.
How does the OMAPL138AZWT3’s memory controller configuration support external SDRAM usage?
The OMAPL138AZWT3 includes native support for SDRAM through its integrated memory controller, enabling direct interfacing with synchronous DRAM devices without requiring external chips. This simplifies board complexity and reduces latency for data-intensive tasks managed by either the ARM or DSP cores. Proper termination, refresh scheduling, and address/data bus routing are essential to ensure reliable operation up to the controller’s maximum supported frequencies, which typically align with the 300MHz system clock divided by memory access cycles.
What role does the HPI interface play in OMAPL138AZWT3-based systems, and when would it be preferred over direct memory access?
The Host Port Interface (HPI) on the OMAPL138AZWT3 enables high-speed communication between an external host processor and the internal ARM/DSP memory space, often used in scenarios where real-time coordination between two microcontrollers is needed—such as in industrial automation gateways. Compared to generic DMA transfers, HPI offers deterministic latency and simpler protocol overhead, making it preferable when synchronization granularity matters more than raw bandwidth. Designers should allocate sufficient buffer space in shared RAM regions to avoid contention during concurrent accesses by the HPI master and local cores.
How does the SATA 3Gbps interface on the OMAPL138AZWT3 impact storage subsystem design?
The integrated SATA 3Gbps port allows direct connection to standard SSDs or HDDs without requiring PCIe bridges or external controllers, reducing component count and latency for mass storage applications. However, achieving full SATA III speeds demands careful PCB trace impedance control, adequate grounding planes, and possibly use of spread-spectrum clocks to minimize electromagnetic interference. Since the OMAPL138AZWT3 lacks native PCIe, any high-speed peripherals beyond SATA must rely on USB 2.0 or Ethernet for connectivity.
In what scenarios would the absence of hardware graphics acceleration in the OMAPL138AZWT3 pose a limitation?
Without dedicated GPU capabilities, the OMAPL138AZWT3 relies entirely on the ARM926EJ-S core to render graphics, which becomes problematic for applications demanding frame rates above 30fps or resolutions exceeding QVGA (320x240). Even basic animations or layered UIs may consume significant CPU cycles, leaving insufficient headroom for background tasks like data logging or sensor acquisition. Consequently, it is better suited for static displays, text-based GUIs, or simple bitmap rendering rather than interactive touchscreen experiences common in modern HMI systems.
How should designers evaluate EMI risks associated with the OMAPL138AZWT3’s mixed-signal architecture?
Due to the coexistence of high-speed digital signals (e.g., from USB 2.0 or SATA) and analog-sensitive paths (like McASP or McBSP), the OMAPL138AZWT3 requires careful partitioning of ground planes and separation of noisy digital return currents from analog reference nodes. The 361-NFBGA package’s fine pitch increases susceptibility to substrate noise coupling, so bypass capacitors must be placed as close as possible to power pins, and clock lines should avoid crossing split planes. Pre-compliance testing with spectrum analyzers during early bring-up phases helps identify problematic harmonics before full system integration.
What are the implications of the OMAPL138AZWT3’s MSL 3 classification for manufacturing and handling procedures?
With an Moisture Sensitivity Level (MSL) of 3 and a floor life of 168 hours, the OMAPL138AZWT3 must be stored in dry packaging and handled according to JEDEC J-STD-020 guidelines. Exposure beyond 168 hours after opening requires baking prior to reflow to prevent popcorning damage during soldering. Assembly facilities must track lot codes and humidity exposure times closely, particularly in regions with high ambient moisture, to maintain yield and reliability in high-volume production environments.
How does the OMAPL138AZWT3 compare to newer ARM Cortex-M or Cortex-A series processors in terms of real-time performance?
Although the OMAPL138AZWT3 predates modern Cortex architectures, its dual-core capability (ARM9 + C674x) provides superior parallelism for mixed-control-and-signal-processing workloads compared to single-core Cortex-M devices. However, newer Cortex-A series parts offer higher single-threaded performance, richer OS support, and advanced power management, making them more appropriate for consumer-tier embedded Linux applications. For legacy industrial control loops or DSP-heavy filters, the OMAPL138AZWT3 remains competitive due to its deterministic interrupt response and integrated peripherals.
What precautions are necessary when using the OMAPL138AZWT3’s USB 2.0 port in host mode?
When configured as a USB 2.0 host, the OMAPL138AZWT3 drives differential pairs that demand strict impedance matching (typically 90Ω ±10%) and controlled-length traces to meet USB-IF electrical specifications. Power delivery to downstream devices must comply with USB enumeration rules, and ESD protection diodes should be placed near connectors to safeguard against transient events. Firmware must also handle enumeration correctly, as incorrect descriptor parsing can result in failed device recognition or unstable data transfers.
How does the presence of CP15 in the OMAPL138AZWT3 benefit system configuration and cache management?
The CP15 coprocessor provides architectural support for memory management unit (MMU), cache control, and system coprocessor registers, enabling virtual memory translation and fine-grained cache policies. This is essential for running preemptive multitasking operating systems like uCLinux or ThreadX, where isolation between processes or tasks depends on proper TLB setup and cache coherency enforcement. Misconfiguration of CP15 settings can lead to data corruption or unpredictable behavior, so developers must consult the ARM926EJ-S Technical Reference Manual during OS porting efforts.
Can the OMAPL138AZWT3 simultaneously drive an LCD display and stream data over Ethernet without performance degradation?
Yes, the OMAPL138AZWT3 supports concurrent operation of its LCD controller and 10/100Mbps Ethernet MAC thanks to its multi-bus architecture and separate DMA channels for each peripheral. However, peak throughput is constrained by shared memory bandwidth and CPU scheduling. If both streams demand large block transfers simultaneously, memory contention may introduce latency spikes. Implementing double-buffered framebuffers for the LCD and scatter-gather descriptors for Ethernet packets helps mitigate this by overlapping data movement with processing, maintaining smooth visual output and consistent packet delivery.
What factors determine whether the OMAPL138AZWT3 meets RoHS3 compliance requirements in global markets?
RoHS3 compliance of the OMAPL138AZWT3 is confirmed by manufacturer documentation, indicating adherence to Directive 2015/863/EU, which expands restricted substances beyond the original six to include four phthalates. As long as the device is sourced directly from Texas Instruments with valid traceability, it satisfies regulatory needs for EU and other markets enforcing RoHS3. Designers should retain Certificates of Conformity and material declarations during certification audits, especially for medical or automotive end-products where stricter environmental controls apply.
How does the ECCN classification (3A991A2) influence export controls involving the OMAPL138AZWT3?
Classified under ECCN 3A991A2, the OMAPL138AZWT3 falls under U.S. Commerce Control List Category 3 for electronics and is subject to Export Administration Regulations (EAR). While not classified as a "mass market" item, its availability to foreign nationals in the U.S. or shipment abroad may require licensing depending on destination country, end-use, and quantity. Design teams working on defense or aerospace projects should verify final assembly locations and user profiles to avoid inadvertent violations, particularly when integrating into systems destined for embargoed nations.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments OMAPL138AZWT3

Product Attribute OMAPL138AZCE3 OMAPL138AZCEA3 OMAPL138BZCEA3E OMAPL138BZCEA3D
Part Number OMAPL138AZCE3 OMAPL138AZCEA3 OMAPL138BZCEA3E OMAPL138BZCEA3D
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Additional Interfaces - - - -
Display & Interface Controllers - - - -
Security Features - - - -
Ethernet - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Speed - - - -
Graphics Acceleration - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Core Processor - - - -
Voltage - I/O - - - -
Co-Processors/DSP - - - -
Number of Cores/Bus Width - - - -
USB - - - -
RAM Controllers - - - -
Series - - - -
SATA - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Base Product Number - DAC34H84 MAX500 ADS62P42

OMAPL138AZWT3 Datasheet PDF

Download OMAPL138AZWT3 pdf datasheets and Texas Instruments documentation for OMAPL138AZWT3 - Texas Instruments.

Datasheets
OMAP-L138 Datasheet.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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OMAPL138AZWT3 Image

OMAPL138AZWT3

Texas Instruments
32D-OMAPL138AZWT3

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