Texas Instruments OMAP3503ECUSA

Overview

OMAP3503ECUSA from Texas Instruments is a 720-MHz ARM Cortex-A8 applications processor in a 423-pin s-PBGA package (CUS suffix), featuring 256-KB L2 cache, 112-KB ROM, 64-KB shared SRAM, and integrated camera ISP, display subsystem, and multimedia interfaces - designed for portable media players and digital video cameras requiring real-time image capture and HD display output.

For engineers reviewing the OMAP3503ECUSA datasheet, OMAP3503ECUSA pinout, OMAP3503ECUSA application, or OMAP3503ECUSA equivalent, key selection criteria include its 423-ball CUS package (no POP support), absence of PowerVR SGX graphics (vs. OMAP3515), discrete memory interface capability, and SmartReflex-enabled adaptive voltage scaling for mobile power optimization.

Technical Context

The OMAP3503ECUSA implements the OMAP™3 architecture with an in-order, dual-issue, superscalar ARM Cortex-A8 core compliant with ARMv7, supporting Thumb®-2, TrustZone®, and NEON™ SIMD for accelerated media processing. Its memory subsystem includes SDRAM controller (SDRC) with 16-/32-bit LPDDR support and General Purpose Memory Controller (GPMC) with up to eight chip-selects.

It integrates a dedicated Camera Image Signal Processor (ISP) supporting BT.601/BT.656, CCD/CMOS sensors, and hardware resize (1/4x–4x); a dual-output display subsystem with RGB, RFBI, and analog video DACs; and five McBSP ports - two with sidetone audio buffer - alongside three UARTs, four McSPI, and three high-speed I²C controllers.

Key Specifications

Pinout & Package

OMAP3503ECUSA uses a 423-ball, 0.65-mm pitch, s-PBGA package (CUS suffix). Unlike CBB/CBC variants, it omits POP interface, discrete memory interface signals (gpmc_ncs1/ncs2, gpmc_wait1/wait2), and HSUSB3_TLL/MM_FSUSB3 support. Pin assignments follow TI's Quadrant A–D layout per Figure 2-5 (bottom view) and Table 2-3 (CUS ball characteristics).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar applications processor applications.

Compared with OMAP3515ECBB, OMAP3503ECUSA trades GPU and POP capability for smaller footprint and lower power; versus AM3517BZCNA, it adds imaging and analog video features at the expense of Ethernet - making it optimal for portable visual devices where size and battery life are prioritized over networking or 3D graphics.

Availability

OMAP3503ECUSA is available at Aetrix Electronics and suitable for portable media players, digital video cameras, and portable navigation devices requiring stable component supply and long-term industrial availability.

Supply support for OMAP3503ECUSA 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 for industrial, automotive, and consumer markets.

The OMAP3503 belongs to TI's OMAP™3 family of applications processors, engineered for high-performance, low-power portable multimedia devices - emphasizing imaging, display, and OS-level responsiveness under battery-constrained conditions.

FAQ

What distinguishes OMAP3503ECUSA from OMAP3515?

The OMAP3503ECUSA omits the PowerVR SGX 530 graphics accelerator present in OMAP3515, resulting in lower power consumption and thermal output. It shares the same ARM Cortex-A8 core, ISP, display subsystem, and peripheral set, but targets cost- and size-sensitive applications where GPU acceleration is unnecessary. The ECUSA suffix confirms its 423-pin CUS package, while OMAP3515 variants use 515-pin CBB/CBC packages with POP support.

Does OMAP3503ECUSA support external DDR2 or LPDDR memory?

Yes, OMAP3503ECUSA supports LPDDR (Low-Power Double Data Rate) SDRAM via its SDRAM Controller (SDRC), with 16- and 32-bit bus widths and up to 1 GB total address space. It does not support standard DDR2; LPDDR is required for optimal power efficiency and timing compliance per Section 6.4 of the SPRS505H datasheet. Memory initialization must follow TI's SDRC configuration sequence for stability.

Can OMAP3503ECUSA drive an HDMI display directly?

No, OMAP3503ECUSA does not include native HDMI transmitter circuitry. It supports parallel RGB (up to 24-bit) and analog video outputs (NTSC/PAL via integrated 10-bit DACs), but HDMI requires an external TFP410 or similar TMDS encoder. The display subsystem provides pixel clock, sync signals, and data bus - sufficient for RGB LCDs or composite/S-video, but not HDMI compliance without added silicon.

What operating systems are officially supported on OMAP3503ECUSA?

TI officially supports Linux®, Windows® CE, and Android™ on OMAP3503ECUSA. Board Support Packages (BSPs), kernel drivers, and graphics libraries are provided for all three, with Android 2.2+ and Linux 2.6.32+ validated in TI's release notes. Real-time OS support (e.g., TI-RTOS) is available for peripheral drivers but not full system integration - Linux remains the primary development target for multimedia applications.

Is SmartReflex technology enabled by default on OMAP3503ECUSA?

Yes, SmartReflex adaptive voltage scaling is hardware-integrated and active by default in OMAP3503ECUSA's power management unit (PRCM). It dynamically adjusts the MPU core voltage (0.985–1.35 V) based on real-time workload and temperature, reducing active power without software intervention. System software may configure OPP (Operating Performance Point) tables via PRCM registers to fine-tune voltage/frequency trade-offs for specific use cases.