Texas Instruments AM3703CUS100

Overview

AM3703CUS100 from Texas Instruments is a Sitara™ ARM® Cortex™-A8 microprocessor operating at up to 1 GHz with adaptive core voltage (0.9–1.1 V), integrated 256KB L2 cache, POWERVR SGX graphics accelerator (AM3715 only - not present in AM3703), and 423-ball s-PBGA (CUS) package. It serves as the main application processor in embedded systems requiring Linux/Android support, multimedia I/O, and real-time peripheral control - e.g., portable data terminals and industrial HMIs.

For engineers reviewing the AM3703CUS100 datasheet, AM3703CUS100 pinout, AM3703CUS100 application, or AM3703CUS100 equivalent, key selection considerations include its 423-pin CUS package, absence of POWERVR SGX (vs. AM3715), 188 multiplexed GPIOs, dual USB subsystems (OTG + multiport host), and support for SDRAM, NAND/NOR flash, and MMC/SD via GPMC and SDRC controllers.

Technical Context

The AM3703CUS100 implements the ARMv7 architecture with TrustZone security, NEON SIMD coprocessor, and in-order dual-issue superscalar execution. It integrates dedicated hardware accelerators including a camera ISP, display processor (dual-output, 3-layer), resize engine, and McBSP sidetone support - all managed through a hierarchical L3/L4 interconnect.

Its memory subsystem includes a 16-/32-bit SDRAM controller (SDRC) with SMS scheduler and rotation engine, plus a flexible General Purpose Memory Controller (GPMC) supporting glueless NOR/NAND/SRAM interfaces with ECC Hamming code calculation. Power management leverages SmartReflex™ AVS and dynamic voltage/frequency scaling (DVFS).

Key Specifications

Pinout & Package

AM3703CUS100 uses a 423-ball s-PBGA (CUS) package with 0.65 mm ball pitch and no top-side balls. Pin functions are highly multiplexed across 188 GPIOs supporting UART, McSPI, McBSP, I²C, MMC/SD, USB, camera, display, and memory interfaces. Ball assignments follow TI's standardized quadrant layout (A–D) per Figure 2-14 through Figure 2-17 of SPRS616F.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AM3715CUS100 and AM3358BZCZ100, the AM3703CUS100 delivers optimal balance of multimedia capability, peripheral flexibility, and cost for Linux-based embedded systems where GPU acceleration is not required - making it ideal for HMIs, data terminals, and imaging appliances.

Availability

AM3703CUS100 is available at Aetrix Electronics and suitable for portable data terminals, industrial HMIs, and automotive infotainment systems requiring stable component supply, long-term lifecycle support, and extended temperature operation.

Supply support for AM3703CUS100 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 experience in high-reliability industrial and automotive silicon.

The AM3703CUS100 belongs to TI's Sitara ARM processor family, designed specifically for high-performance, low-power embedded applications running Linux, Android, or real-time OSes - targeting human-machine interfaces, portable electronics, and intelligent edge devices.

FAQ

What is the maximum operating frequency of the AM3703CUS100?

The AM3703CUS100 operates at up to 1 GHz under adaptive voltage scaling (0.9–1.1 V core voltage). This frequency is validated across the extended temperature range (−40°C to +105°C) and enables robust Linux application performance, real-time peripheral handling, and efficient multimedia processing - all while maintaining thermal feasibility in fanless enclosures.

Does the AM3703CUS100 include a POWERVR SGX graphics accelerator?

No, the AM3703CUS100 does not include the POWERVR SGX graphics accelerator. That feature is exclusive to the AM3715 variant. The AM3703CUS100 retains full display subsystem capabilities (dual-output, 3-layer, temporal dithering) and hardware video processing but relies on CPU/GPU-offloaded rendering for 2D graphics - sufficient for most HMI and data terminal use cases.

What memory interfaces does the AM3703CUS100 support?

The AM3703CUS100 supports two primary memory interfaces: a 16-/32-bit SDRAM controller (SDRC) with SMS scheduler for DDR/DDR2 SDRAM, and a flexible General Purpose Memory Controller (GPMC) for glueless connection to NOR flash, NAND flash (with Hamming ECC), SRAM, and FPGA/CPLD logic. Both controllers are fully documented in the SPRS616F datasheet.

How many USB interfaces does the AM3703CUS100 provide?

The AM3703CUS100 provides two independent USB subsystems: a high-speed USB 2.0 OTG port (12-pin ULPI interface) and a high-speed/full-speed/low-speed multiport USB host subsystem (6-/4-/3-pin serial interface). This allows simultaneous device and host functionality - e.g., connecting a USB keyboard (host) while acting as a USB mass storage device (OTG).

Is the AM3703CUS100 pin-compatible with the AM3715CUS100?

Yes, the AM3703CUS100 and AM3715CUS100 share identical 423-ball s-PBGA (CUS) packaging, pinout, and signal mapping - enabling drop-in replacement in existing designs where POWERVR SGX graphics are not utilized. All power, clock, reset, and peripheral signals align directly between the two variants.