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HomeProductsIntegrated Circuits (ICs)Embedded - MicroprocessorsOMAPL138AZCEA3
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OMAPL138AZCEA3 - Texas Instruments

Manufacturer Part Number
OMAPL138AZCEA3
Manufacturer
Texas Instruments
Allelco Part Number
98D-OMAPL138AZCEA3
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
6,457 pcs available, New & Original
Parts Description
IC MPU OMAP-L1X 300MHZ 361NFBGA
Package
361-NFBGA (13x13)
Data sheet
OMAPL138AZCEA3.pdf
RoHs Status
ROHS3 Compliant
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Specifications

OMAPL138AZCEA3 Tech Specifications
Texas Instruments - OMAPL138AZCEA3 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - OMAPL138AZCEA3

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 (13x13)
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 -40°C ~ 105°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

Frequently Asked Questions(FAQ)

How does the OMAPL138AZCEA3 compare to other OMAP-L1x series processors in terms of core architecture and clock speed, particularly for embedded signal processing applications?
The OMAPL138AZCEA3 features a single-core ARM926EJ-S processor running at 300MHz, which positions it as a mid-range option within the OMAP-L1x family. Compared to higher-end variants like the OMAPL137 (also 300MHz but with enhanced power management) or lower-performance models such as the OMAPL1115 (200MHz), the L138 maintains consistent clock speeds while offering a balanced set of peripherals. Its inclusion of a C674x DSP core enables efficient real-time signal processing tasks, making it suitable for audio, video, or control algorithms that require both general-purpose computation and dedicated digital signal processing. This dual-processing capability distinguishes it from simpler microcontrollers or single-function SoCs.
What are the key differences between the OMAPL138AZCEA3 and its substitute part OMAPL138EZCEA3, especially regarding reliability and manufacturing status?
While both OMAPL138AZCEA3 and OMAPL138EZCEA3 share identical electrical characteristics and package specifications—being 361-NFBGA (13x13) devices—the suffix variation typically indicates minor revisions in manufacturing process or quality assurance steps. In practice, these parts may have different lot codes, traceability, or internal die revisions without affecting functional performance. However, since both are listed as obsolete by Texas Instruments, engineers should prioritize design migration over substitution unless verified through sample testing. The absence of active lifecycle support means long-term supply planning is critical.
Can the OMAPL138AZCEA3 be used in industrial temperature environments, and what design considerations apply given its operating range of -40°C to 105°C?
Yes, the OMAPL138AZCEA3 supports operation from -40°C to 105°C junction temperature, making it suitable for many industrial applications including factory automation, test equipment, and outdoor monitoring systems. Engineers must ensure proper thermal management through adequate PCB copper area, thermal vias under the BGA package, and airflow if applicable. Additionally, voltage regulators should be selected to maintain stable I/O and core voltages across the full temperature span, avoiding brownout conditions during cold startups or high-load scenarios at elevated temperatures.
What memory interface options does the OMAPL138AZCEA3 provide, and how do they impact system design complexity?
The OMAPL138AZCEA3 includes an integrated SDRAM controller supporting synchronous DRAM interfaces, allowing connection to external memory modules such as DDR, DDR2, or mobile SDRAM. This eliminates the need for discrete memory controllers in most designs, simplifying board layout and firmware development. However, careful attention must be paid to signal integrity due to high-speed traces required for data/clock routing, especially when using double-data-rate memories. System architects can reduce component count but gain flexibility in choosing memory density and type based on application requirements.
How does the OMAPL138AZCEA3 handle USB connectivity, and why might someone choose this over alternative embedded processors?
The OMAPL138AZCEA3 provides two independent USB interfaces: one compliant with USB 1.1 standards and another supporting USB 2.0 High-Speed communication, each with integrated physical layer (PHY). This dual-interface capability allows simultaneous host and peripheral roles—for example, connecting a camera via USB 2.0 while emulating a keyboard through USB 1.1. Many competing embedded processors offer only one USB port or rely on external transceivers, increasing bill-of-materials cost and board space. The integrated PHY reduces design effort and simplifies ESD protection circuitry.
Is cryptography hardware acceleration available on the OMAPL138AZCEA3, and how does this affect secure boot implementation?
Yes, the OMAPL138AZCEA3 includes cryptographic hardware acceleration as part of its security features, enabling efficient encryption and decryption operations for AES, DES, or SHA algorithms. This offloads CPU-intensive tasks from the ARM926EJ-S core, preserving system responsiveness during data authentication or secure communication protocols. Secure boot becomes more feasible because cryptographic verification can occur early in the boot sequence before loading sensitive code, reducing reliance on software-only solutions that consume valuable processing cycles.
What display capabilities are supported by the OMAPL138AZCEA3, and how does this influence user interface design decisions?
The OMAPL138AZCEA3 integrates a dedicated LCD controller capable of driving monochrome or color graphical displays directly, eliminating the need for an external graphics chip in basic HMI applications. This supports resolutions up to 640x480 in TFT mode and enables frame buffer management within its limited SRAM resources. Designers must balance UI complexity against available memory bandwidth and frame rate requirements; simple menus or numeric displays work well, but advanced animations may require external framebuffer RAM or reduced refresh rates.
How does the Ethernet MAC implementation in the OMAPL138AZCEA3 compare to newer embedded networking solutions, and what limitations exist for modern IoT deployments?
The OMAPL138AZCEA3 embeds a 10/100Mbps Ethernet Media Access Controller (MAC), which is sufficient for legacy industrial protocols like Modbus TCP or simple web servers but lacks Gigabit throughput and modern features such as VLAN tagging or advanced QoS. For high-bandwidth IoT gateways requiring concurrent sensor aggregation and cloud streaming, this becomes a bottleneck. Engineers considering this part should assess whether application latency and packet size justify upgrading to a newer platform with integrated Gigabit Ethernet or external PHYs.
What role does CP15 play in the OMAPL138AZCEA3’s system control, and how does it aid low-power design strategies?
CP15 refers to the ARM926EJ-S’s Coprocessor 15 unit, responsible for managing cache configuration, memory protection, and power control registers. On the OMAPL138AZCEA3, CP15 enables dynamic clock gating, sleep modes, and cache maintenance instructions essential for optimizing energy consumption. By selectively disabling unused peripherals or placing the core into wait states during idle periods, designers can extend battery life in portable devices—though the absence of advanced power domains limits deep-sleep efficiency compared to Cortex-A series implementations.
Why might an engineer avoid using the OMAPL138AZCEA3 despite its integrated peripherals, given its obsolete status?
Although the OMAPL138AZCEA3 offers a rich feature set—including dual USB, LCD, SATA, and cryptography—its official obsolescence status means Texas Instruments no longer guarantees availability, technical support, or replacement under warranty. Supply chain risks include lead-time uncertainty, potential counterfeit parts, and lack of future silicon updates. Newer alternatives like AM335x or i.MX6ULL offer better performance-per-watt, longer lifecycle support, and updated toolchains, making migration advisable even if immediate replacement isn’t urgent.
How does the Moisture Sensitivity Level (MSL) rating of MSL 3 for the OMAPL138AZCEA3 affect assembly and storage practices?
With an MSL 3 classification indicating sensitivity to moisture beyond 168 hours of exposure at 85°C/60% RH, the OMAPL138AZCEA3 requires strict adherence to JEDEC J-STD-033 handling procedures. Boards populated with this device must undergo bake-out before reflow if stored improperly, and operators should use dry cabinets during prototyping. Failure to follow these guidelines risks popcorning during soldering, compromising BGA joint integrity and leading to field failures. Documentation and training become critical in high-volume production environments.
What are the implications of the OMAPL138AZCEA3’s surface-mount packaging for PCB layout and rework processes?
As a 361-pin flip-chip BGA device, the OMAPL138AZCEA3 demands precise PCB land pattern definition, controlled impedance routing for high-speed signals, and adequate via stitching to manage return paths. Rework challenges include limited access to pads and risk of damaging adjacent components during hot-air reflow. Designers should allocate generous keep-out zones around the package and consider test point insertion early in the layout phase. Automated optical inspection (AOI) post-assembly helps detect bridging or missing balls missed by visual checks alone.
How does the absence of graphics acceleration in the OMAPL138AZCEA3 limit multimedia application development?
Unlike modern SoCs with integrated GPU cores, the OMAPL138AZCEA3 relies solely on the ARM926EJ-S CPU and optional LCD controller for rendering visuals. This restricts real-time rendering of complex 2D/3D content, forcing developers to optimize software pipelines or offload tasks to external chips. Video decoding must be handled entirely in firmware, consuming significant CPU cycles unless accelerated via the C674x DSP—but even then, codec support is limited to formats like H.263 or MPEG-4 SP, excluding HD streams common in surveillance or infotainment systems.
What trade-offs arise when selecting the OMAPL138AZCEA3 for a cost-sensitive embedded project versus newer alternatives?
The OMAPL138AZCEA3 may appear attractive due to its comprehensive integration, potentially lowering bill-of-materials cost in simple designs. However, hidden costs emerge from development time spent adapting legacy software stacks, debugging BGA-related layout issues, and mitigating obsolescence risks through inventory buffering. Newer processors often reduce total system cost by integrating similar peripherals with improved efficiency, lower standby current, and active support—factors that outweigh initial part pricing differences in mature projects.
How does the OMAPL138AZCEA3’s I/O voltage support (1.8V and 3.3V) influence mixed-signal interface design?
Supporting both 1.8V and 3.3V I/O rails allows flexible interfacing with sensors, ADCs, and legacy logic families without level shifters. The 1.8V domain powers high-speed interfaces like SPI and McASP, while 3.3V accommodates UARTs and GPIOs compatible with 5V-tolerant inputs. Careful partitioning ensures noise coupling between domains doesn’t degrade analog performance, especially near the C674x DSP blocks used for precision sampling. Power sequencing must respect voltage ramp-up/down order to prevent latch-up during startup.
What substitutes or pin-compatible replacements exist for the OMAPL138AZCEA3, and how should compatibility be validated?
Texas Instruments lists OMAPL138EZCEA3 as a direct substitute, sharing the same base number and package. Validation should confirm identical pinout, timing parameters, and peripheral behavior under worst-case conditions—especially during reset sequences and power-up states. Cross-referencing errata sheets, boot ROM differences, and interrupt vector tables is essential, as subtle variations in internal state machines could disrupt existing firmware. Functional equivalence does not guarantee bit-for-bit compatibility in all edge cases.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments OMAPL138AZCEA3

Product Attribute OMAPL138BZCEA3 OMAPL138AZCE3 OMAPL138BZCE3 OMAPL138BZCE4
Part Number OMAPL138BZCEA3 OMAPL138AZCE3 OMAPL138BZCE3 OMAPL138BZCE4
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Co-Processors/DSP - - - -
Graphics Acceleration - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
RAM Controllers - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
USB - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Ethernet - - - -
Speed - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Number of Cores/Bus Width - - - -
SATA - - - -
Additional Interfaces - - - -
Core Processor - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Voltage - I/O - - - -
Series - - - -
Security Features - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Display & Interface Controllers - - - -

OMAPL138AZCEA3 Datasheet PDF

Download OMAPL138AZCEA3 pdf datasheets and Texas Instruments documentation for OMAPL138AZCEA3 - Texas Instruments.

Datasheets
OMAP-L138 Datasheet.pdf
PCN Design/Specification
Hybrid Au/Cu Wire Bond Flow 08/Apr/2014.pdf Multiple Changes Revision B 23/Jun/2014.pdf
PCN Obsolescence/ EOL
Freon/Netra/SubArtic EOL 06/Oct/2015.pdf Freon/Netra/SubArtic EOL Update 4/Nov/2015.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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OMAPL138AZCEA3 Image

OMAPL138AZCEA3

Texas Instruments
98D-OMAPL138AZCEA3

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