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Texas Instruments OMAPL138EZCED4
- Part No.:
- OMAPL138EZCED4
- Manufacturer:
- Texas Instruments
- Category:
- Microprocessors
- Package:
- 361-LFBGA
- Datasheet:
-
OMAPL138EZCED4.pdf
- Description:
- IC MPU OMAP-L1X 456MHZ 361NFBGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
OMAPL138EZCED4 from Texas Instruments is a dual-core C6000™ DSP + ARM® SoC integrating a 375-MHz ARM926EJ-S RISC processor and a 375-MHz C674x VLIW DSP core, with 32KB L1P/L1D caches, 256KB L2 unified RAM/cache, and 128KB shared RAM. It supports DDR2/mDDR, EMIFA, USB 2.0 OTG, USB 1.1 OHCI, 10/100 Ethernet MAC, SATA I/II, and PRUSS for real-time control - deployed in industrial portable navigation and smart grid substation protection.
For engineers reviewing the OMAPL138EZCED4 datasheet, OMAPL138EZCED4 pinout, OMAPL138EZCED4 application, or OMAPL138EZCED4 equivalent, key selection considerations include dual-core clock synchronization, secure boot (AES-128/SHA-256), DDR2 timing compliance, and peripheral multiplexing constraints across 361-ball PBGA packages.
Technical Context
The OMAPL138EZCED4 implements tightly coupled ARM926EJ-S and C674x cores sharing memory-mapped peripherals via AHB/EMIF buses, with independent PLLs enabling asynchronous operation at 375 MHz each. Its memory subsystem includes configurable L1/L2 cache partitions and dedicated 128KB shared RAM accessible by both cores without performance contention.
Peripheral integration follows a hierarchical bus architecture: EDMA3 controllers manage high-bandwidth transfers between DSP/ARM and McASP/McBSP/EMAC; PRUSS provides deterministic real-time I/O offload; and security is enforced via hardware-rooted Basic Secure Boot with encrypted image loading from external flash.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Architecture | Dual-core: ARM926EJ-S + C674x DSP, both running at 375 MHz - enables concurrent OS execution and real-time signal processing. |
| L1 Cache | 32KB L1P (program) + 32KB L1D (data) - reduces instruction/data fetch latency for time-critical DSP loops and ARM kernel operations. |
| L2 Memory | 256KB unified mapped RAM/cache - configurable as cache-only, RAM-only, or mixed; accessible by both cores and EDMA3. |
| Shared RAM | 128KB on-chip SRAM - dedicated inter-processor communication buffer with no arbitration delay between ARM and DSP domains. |
| External Memory | DDR2/mDDR controller (16-bit, 256MB address space) + EMIFA (NOR/NAND/SDRAM) - supports bootable flash and high-throughput data streaming. |
| Security | Basic Secure Boot with AES-128 encryption and SHA-256 validation - protects boot image integrity and prevents unauthorized firmware modification. |
| Package | 361-ball NFBGA (ZCE suffix), 13.0 mm × 13.0 mm, 0.65-mm pitch - standard industrial footprint compatible with automated PCB assembly. |
Pinout & Package
OMAPL138EZCED4 is housed in a 361-ball Pb-free plastic ball grid array (PBGA) package with 0.65-mm ball pitch and 13.0 mm × 13.0 mm body size (ZCE suffix). Ball mapping follows TI's standardized OMAP-L138 pin assignment table, supporting full peripheral functionality under thermal and signal-integrity constraints for industrial ambient conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_CORE | Core power supply | 1.2V nominal (1.0–1.3V range); supplies ARM/DSP CPU cores and L1/L2 memory - requires low-noise regulation and local decoupling. |
| VDD_IO | I/O power supply | Configurable 1.8V or 3.3V; powers all GPIO, UART, SPI, I2C, and LCD interfaces - enables mixed-voltage system interfacing. |
| CLKIN | Primary oscillator input | Accepts 24–38.4 MHz crystal or external clock; feeds PLLs to generate core, memory, and peripheral clocks. |
| USB0_DP / USB0_DM | USB 2.0 OTG differential pair | Integrated PHY supports high/full/low-speed device/host modes; requires 90-Ω differential impedance routing. |
| DDR2_DQ[15:0] | DDR2 data bus | 16-bit bidirectional data interface to DDR2 SDRAM; demands strict length matching and termination per JEDEC spec. |
| EMIFA_A[22:0] | EMIFA address bus | 23-bit address lines for NOR/NAND/SDRAM access; supports up to 128MB address space with programmable timing registers. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core asymmetric processing | ARM9 handles Linux/RTOS tasks and UI; C674x executes fixed/floating-point math (up to 2746 MFLOPS) - eliminates need for discrete DSP co-processor. |
| PRUSS real-time offload | Two 32-bit PRU cores with 4KB IRAM + 512B DRAM each - execute deterministic I/O (e.g., PWM capture, encoder counting) without ARM/DSP intervention. |
| Secure boot enforcement | Hardware-rooted AES-128 decryption and SHA-256 signature verification of boot image - prevents runtime tampering and ensures trusted code execution from power-on. |
| Flexible memory partitioning | L2 memory configurable as cache, RAM, or hybrid - allows optimization for latency-critical DSP buffers vs. ARM heap allocation without redesign. |
| Industrial connectivity suite | Integrated 10/100 EMAC (MII/RMII), SATA I/II, uPP, VPIF, and dual McASP - replaces multiple interface ICs in machine vision and remote radio head designs. |
Applications
| Industrial Portable Navigation Devices | Smart Grid Substation Protection |
|---|---|
Use Scenario: Real-time GPS/INS fusion and map rendering in handheld utility field devices operating in harsh electromagnetic environments. IC Role / Device Role / Timing Role: OMAPL138EZCED4 serves as main applications processor - ARM9 runs Linux-based navigation stack while C674x performs Kalman filtering and sensor data conditioning. Use Value: Integrated EDMA3 and 128KB shared RAM enable zero-copy sensor data transfer between DSP and ARM, reducing latency below 50 µs for critical fault detection. | Use Scenario: Fault current analysis and breaker trip coordination in digital protective relays requiring deterministic response within 2 ms of event detection. IC Role / Device Role / Timing Role: OMAPL138EZCED4 acts as protection algorithm engine - PRUSS captures analog inputs via eCAP modules while C674x computes Fourier transforms on sampled waveforms. Use Value: Hardware-accelerated FFT and PRU-triggered dead-time insertion on eHRPWM outputs ensure sub-cycle (<16.7 µs) reaction to overcurrent events. |
| Remote Radio Head (RRH) | Machine Vision (Low-End) |
Use Scenario: Baseband processing and CPRI interface handling in compact outdoor RRH units with constrained power and thermal budgets. IC Role / Device Role / Timing Role: OMAPL138EZCED4 functions as baseband modem - C674x executes LTE OFDM modulation/demodulation while ARM9 manages CPRI transport layer and configuration. Use Value: Dual 375-MHz cores with 256KB L2 cache sustain 100+ Mbps throughput for 2×2 MIMO processing without external DDR bottleneck. | Use Scenario: Barcode scanning and defect inspection on production lines using CMOS image sensors and LED strobes. IC Role / Device Role / Timing Role: OMAPL138EZCED4 operates as vision controller - VPIF captures raw 8-bit video; C674x runs edge detection; ARM9 drives display and network upload. Use Value: Integrated McASP and eHRPWM synchronize camera exposure and LED illumination with <100 ns jitter, eliminating motion blur in high-speed conveyors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-core DSP+ARM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OMAPL138ZCE | Same silicon die, identical electrical specs and pinout - differs only in packaging marking (ZCE vs EZCED4); both use 361-ball 0.65-mm-pitch PBGA. | No functional difference; ZCE is TI's standard orderable part number for this variant - EZCED4 is a specific date-code/batch-marked version. | Select OMAPL138ZCE for new designs requiring full TI documentation traceability and long-term availability assurance. |
| AM1808AZWT | ARM9-only (no DSP core); same package footprint but different pin assignments - lacks C674x, L2 cache, McASP, SATA, and PRUSS. | Suitable for Linux-based HMI or gateway applications without real-time signal processing - cannot replace OMAPL138EZCED4 in DSP-intensive roles. | Choose AM1808AZWT only when application requires ARM9 performance and peripheral set without floating-point computation or PRU real-time control. |
Compared with OMAPL138ZCE, the OMAPL138EZCED4 offers identical functionality and is functionally interchangeable; versus AM1808AZWT, it delivers essential DSP acceleration and hardware offload capabilities required for closed-loop industrial control and communications baseband processing.
Availability
OMAPL138EZCED4 is available at Aetrix Electronics and suitable for industrial portable navigation devices, smart grid substation protection systems, remote radio heads, and low-end machine vision equipment requiring stable component supply across extended product lifecycles.
Supply support for OMAPL138EZCED4 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
The OMAP-L138 product line targets cost-sensitive, power-constrained industrial applications requiring integrated DSP and ARM processing - designed to consolidate signal processing, connectivity, and real-time control into a single SoC for ruggedized edge devices.
FAQ
What is the maximum operating frequency of the OMAPL138EZCED4?
The OMAPL138EZCED4 operates at a maximum frequency of 375 MHz for both its ARM926EJ-S core and C674x DSP core under 1.2V core supply conditions. This frequency is specified in TI's SPRS586J datasheet revision January 2017 and validated across commercial and industrial temperature ranges. The OMAPL138EZCED4 does not support the 456-MHz variant - that requires 1.3V core voltage and is designated with different suffixes (e.g., EZCED5).
Does the OMAPL138EZCED4 support secure boot functionality?
Yes, the OMAPL138EZCED4 implements TI's Basic Secure Boot with hardware-enforced AES-128 decryption and SHA-256 signature verification of boot images stored in external flash. This feature protects proprietary algorithms and prevents unauthorized firmware updates. The OMAPL138EZCED4 uses a device-specific 128-bit cipher key generated by an NIST-800-22 certified RNG, ensuring cryptographic root-of-trust from power-on reset.
Which external memory types are supported by the OMAPL138EZCED4?
The OMAPL138EZCED4 supports DDR2 SDRAM (16-bit, 256MB address space), mobile DDR SDRAM, and asynchronous memories via EMIFA including NOR flash (8-/16-bit), NAND flash (8-/16-bit), and 16-bit SDRAM (128MB address space). These interfaces are electrically and logically distinct - DDR2/mDDR uses dedicated controller pins, while EMIFA shares multiplexed signals with other peripherals like UART and SPI.
What is the package type and ball count of the OMAPL138EZCED4?
The OMAPL138EZCED4 uses a 361-ball Pb-free plastic ball grid array (PBGA) package with 0.65-mm ball pitch and 13.0 mm × 13.0 mm body size, designated ZCE. This matches TI's standard OMAPL138ZCE mechanical specification and is compatible with standard SMT reflow profiles for Class 3 industrial assembly.
Can the OMAPL138EZCED4 run Linux and real-time DSP algorithms simultaneously?
Yes, the OMAPL138EZCED4 is architected for concurrent operation: the ARM926EJ-S core typically runs Linux or RTOS for system management and user interface, while the C674x DSP core executes time-critical signal processing (e.g., FFT, filtering, modulation) independently. Inter-processor communication occurs via 128KB shared RAM and EDMA3-managed transfers - verified in TI's Linux SDK and C6000 DSP BIOS examples for OMAPL138EZCED4.
OMAPL138EZCED4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 361-LFBGA
- Series:
- OMAP-L1x
- Packaging:
- Tray
- Product Status:
- Active
- Core Processor:
- ARM926EJ-S
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 456MHz
- Co-Processors/DSP:
- Signal Processing; C674x, System Control; CP15
- RAM Controllers:
- SDRAM
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- LCD
- Ethernet:
- 10/100Mbps (1)
- SATA:
- SATA 3Gbps (1)
- USB:
- USB 1.1 + PHY (1), USB 2.0 + PHY (1)
- Voltage - I/O:
- 1.8V, 3.3V
- Operating Temperature:
- -40°C ~ 90°C (TJ)
- Grade:
- -
- Qualification:
- -
- Security Features:
- Boot Security, Cryptography
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 361-NFBGA (13x13)
- Additional Interfaces:
- HPI, I2C, McASP, McBSP, MMC/SD, SPI, UART
OMAPL138EZCED4 FAQ
1.How can I place an order for OMAPL138EZCED4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OMAPL138EZCED4 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 OMAPL138EZCED4 reliable?
The price and inventory of OMAPL138EZCED4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OMAPL138EZCED4 is usually 5 days.
3.What payment methods are accepted for OMAPL138EZCED4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OMAPL138EZCED4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OMAPL138EZCED4?
OMAPL138EZCED4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OMAPL138EZCED4 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 OMAPL138EZCED4?
For technical support, including OMAPL138EZCED4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OMAPL138EZCED4 requirements.
6.How does Aetrix verify that OMAPL138EZCED4 is sourced from the original manufacturer or authorized distributors?
All OMAPL138EZCED4 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 OMAPL138EZCED4 meets industry standards.
7.What is the process for return or replacement of OMAPL138EZCED4?
All OMAPL138EZCED4 units undergo pre-shipment inspection (PSI). If there is an issue with OMAPL138EZCED4, 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 OMAPL138EZCED4 part is unused and in its original packaging.
Return procedure for OMAPL138EZCED4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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