Texas Instruments OMAP3503DCUS72

Overview

OMAP3503DCUS72 from Texas Instruments is a 423-pin s-PBGA applications processor based on the ARM Cortex-A8 core operating up to 720 MHz, featuring 256-KB L2 cache, 112-KB ROM, and 64-KB shared SRAM. It integrates camera ISP, display subsystem with dual LCD support, USB OTG/host, MMC/SDIO, McSPI, UARTs, and SmartReflex power management - designed for portable media players and digital video cameras.

For engineers reviewing the OMAP3503DCUS72 datasheet, OMAP3503DCUS72 pinout, OMAP3503DCUS72 application, or OMAP3503DCUS72 equivalent, key selection considerations include its CUS-package limitations (no POP interface, no discrete memory interface, reduced GPMC chip-selects), 188 GPIO availability under multiplexing constraints, and absence of PowerVR SGX graphics accelerator compared to OMAP3515.

Technical Context

The OMAP3503DCUS72 implements an in-order, dual-issue, superscalar ARM Cortex-A8 microprocessor core compliant with ARMv7 architecture and Thumb-2 instruction set, with NEON SIMD coprocessor and TrustZone security extensions. Its memory subsystem includes SDRAM controller (SDRC) supporting LPDDR, General Purpose Memory Controller (GPMC) with eight chip-selects (though ncs1/ncs2 and wait1/wait2 are omitted in CUS), and system DMA with 32 logical channels.

It features a dedicated Camera ISP supporting BT.601/BT.656 interfaces, CCD/CMOS sensors, and hardware resize (1/4× to 4×); a display subsystem with parallel RGB output (up to 24-bit), RFBI support, NTSC/PAL DACs, and temporal dithering; and serial peripherals including five McBSPs (two with sidetone), four McSPI ports, three high-speed I²C controllers, and three UARTs (one with IrDA/CIR).

Key Specifications

Pinout & Package

OMAP3503DCUS72 uses a 423-ball s-PBGA package (CUS suffix) with 0.65-mm ball pitch, no POP interface, and no discrete memory interface. Ball assignments follow TI SPRS505H Figure 2-5 (bottom view) and Table 2-3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OMAP3515CBB, OMAP3503DCUS72 trades 3D graphics and POP capability for smaller footprint and lower cost; versus AM3517BZC, it lacks updated USB PHY tuning and has shorter manufacturer support horizon, making AM3517BZC the recommended upgrade path for long-term production.

Availability

OMAP3503DCUS72 is available at Aetrix Electronics and suitable for portable media players, digital video cameras, and point-of-sale terminals requiring stable component supply across multi-year production cycles.

Supply support for OMAP3503DCUS72 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 specializing in analog, embedded processing, and wireless technologies, with leadership in low-power design and industrial-grade reliability.

The OMAP3 family was engineered for high-performance mobile applications demanding rich multimedia, real-time imaging, and extended battery life - targeting portable consumer electronics before the smartphone consolidation era.

FAQ

What is the maximum supported SDRAM capacity for OMAP3503DCUS72?

The OMAP3503DCUS72 supports up to 1 GB of total external memory space via its SDRAM Controller (SDRC), configured across two banks using 15-bit addressing (A0–A14) and 32-bit data width. This capacity accommodates full HD video frame buffers and OS runtime memory for Linux or Android deployments. The actual usable size depends on LPDDR chip density and board layout signal integrity - verified in TI SPRS505H Section 6.4.

Does OMAP3503DCUS72 include PowerVR SGX graphics acceleration?

No, OMAP3503DCUS72 does not include the PowerVR SGX graphics accelerator. That feature is exclusive to the OMAP3515 variant per TI SPRS505H Section 1.1 and Figure 1-1. OMAP3503DCUS72 retains all other subsystems - MPU, ISP, display, USB, and peripherals - but omits SGX, making it suitable for applications requiring video processing and UI rendering without 3D graphics.

How many general-purpose I/O pins are available on OMAP3503DCUS72?

OMAP3503DCUS72 supports up to 188 GPIO pins as stated in TI SPRS505H Table 1-1, though pin muxing restricts simultaneous availability. Unlike CBB/CBC packages, the CUS variant does not omit GPIO_112–115 or GPIO_144–176; all 188 are physically present and functionally accessible subject to multiplexing configuration in software.

What video output standards does OMAP3503DCUS72 support natively?

OMAP3503DCUS72 supports composite NTSC and PAL video output via its dual 10-bit DACs, plus separate luma/chroma (S-video) output. It also provides parallel digital RGB (up to 24-bit) and RFBI interfaces for LCD panels. These capabilities are documented in SPRS505H Sections 1.1 and 5, with electrical specs in Section 5.2 covering vdda_dac noise and external component requirements.

Is OMAP3503DCUS72 pin-compatible with OMAP3515CBB?

No, OMAP3503DCUS72 is not pin-compatible with OMAP3515CBB. The CUS package has 423 balls and 0.65-mm pitch, while CBB uses 515 balls and 0.5-mm top / 0.4-mm bottom pitch. TI SPRS505H Table 1-1 explicitly lists differing pin counts, ball pitch, and unavailable signals (e.g., POP interface, GPMC ncs1/ncs2) - requiring distinct PCB layouts and interposer designs for each.