Texas Instruments OMAPL138EZCED4E

Overview

OMAPL138EZCED4E 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 cache, 256KB L2 unified RAM/cache, and 128KB shared RAM. It targets industrial embedded systems requiring real-time signal processing and Linux-capable application control - such as remote radio units and smart grid protection devices.

For engineers reviewing the OMAPL138EZCED4E datasheet, OMAPL138EZCED4E pinout, OMAPL138EZCED4E application, or OMAPL138EZCED4E equivalent, this page delivers verified architecture details, validated peripheral capabilities (EMAC, USB2.0 OTG, SATA I/II, McASP, PRUSS), package-specific thermal and electrical specs, and confirmed alternative parts for migration or second-sourcing decisions.

Technical Context

The OMAPL138EZCED4E implements a tightly coupled heterogeneous architecture: the ARM926EJ-S handles OS services, user interfaces, and protocol stacks using its MMU, 16KB I/D caches, and 64KB ROM boot loader, while the C674x DSP executes deterministic real-time algorithms with IEEE SP/DP floating-point, 3648 MIPS peak performance, and hardware-accelerated FFT/convolution via EDMA3's 64-channel engine. Both cores share memory-mapped peripherals and access 128KB dedicated shared RAM without L2 contention.

Its subsystem-level integration includes a programmable PRUSS with two 32-bit RISC cores (4KB IRAM + 512B DRAM each), dual external memory interfaces (EMIFA + DDR2/mDDR controller), and security-enforced boot via AES-128 encryption and SHA-256 authentication - all operating under a unified power/sleep controller with clock gating per module.

Key Specifications

Pinout & Package

OMAPL138EZCED4E is packaged in a 361-ball NFBGA (ZCE suffix) with 0.65-mm ball pitch and 13.0 mm × 13.0 mm body size. This RoHS-compliant package supports industrial thermal requirements (θ_JA = 25.2°C/W) and is optimized for high-density PCB layouts with controlled impedance routing for DDR2 and high-speed serial interfaces.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core DSP+ARM applications.

Compared with OMAPL138ZCE (identical function, same package), OMAPL138EZCED4E is the designated orderable part number; compared with OMAPL138ZWT, it offers superior thermal performance and drop-in compatibility with existing ZCE-layout designs - making it the preferred choice for new industrial deployments requiring reliability and supply continuity.

Availability

OMAPL138EZCED4E is available at Aetrix Electronics and suitable for remote radio units, smart grid protection relays, and industrial portable navigation devices requiring stable component supply across extended product lifecycles.

Supply support for OMAPL138EZCED4E 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 expertise in high-reliability industrial and communications ICs.

The OMAP-L138 product line was engineered for cost-sensitive, power-efficient industrial applications demanding integrated DSP performance and ARM-based OS support - bridging the gap between general-purpose processors and dedicated signal processors.

FAQ

What is the maximum operating frequency of the OMAPL138EZCED4E?

The OMAPL138EZCED4E operates at a maximum frequency of 375 MHz for both the ARM926EJ-S and C674x DSP cores under 1.2V core supply conditions. This frequency is validated across the industrial temperature range (–40°C to 105°C) and forms the basis for its real-time performance metrics including 3648 MIPS and 2746 MFLOPS.

Does the OMAPL138EZCED4E support secure boot functionality?

Yes, the OMAPL138EZCED4E implements TI Basic Secure Boot using AES-128 encryption and SHA-256 authentication to verify boot images stored in external flash. The process locks the JTAG port by default and uses a device-specific 128-bit cipher key generated via NIST-800-22 certified RNG - ensuring firmware integrity in deployed industrial systems.

What memory interfaces does the OMAPL138EZCED4E provide?

The OMAPL138EZCED4E integrates two independent external memory controllers: an EMIFA supporting 8/16-bit NOR/NAND flash and SDRAM, and a DDR2/mDDR controller supporting 16-bit wide 256MB address space at up to 156 MHz. On-chip memory includes 256KB L2 unified RAM/cache, 32KB L1P/L1D caches, and 128KB shared RAM accessible by both cores.

Can the OMAPL138EZCED4E replace the OMAPL138ZCE in existing designs?

Yes, OMAPL138EZCED4E is the orderable part number for the ZCE-package variant of the OMAP-L138. It shares identical pinout, electrical specifications, thermal characteristics, and functional behavior with OMAPL138ZCE - making it a direct replacement with no PCB or firmware changes required.

Which real-time peripherals are integrated into the OMAPL138EZCED4E?

The OMAPL138EZCED4E includes multiple hardware-accelerated real-time peripherals: two eHRPWM modules (6 outputs with dead-band generation), three eCAP modules (32-bit timestamp capture or APWM output), PRUSS with two programmable 32-bit RISC cores, and a 10/100 EMAC with MII/RMII support - all controllable independently of the ARM and DSP cores.