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Texas Instruments AM3703CUS
- Part No.:
- AM3703CUS
- Manufacturer:
- Texas Instruments
- Category:
- Microprocessors
- Package:
- 423-LFBGA, FCBGA
- Datasheet:
-
AM3703CUS.pdf
- Description:
- IC MPU SITARA 800MHZ 423FCBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,351
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Product details
Overview
AM3703CUS from Texas Instruments is a Sitara™ ARM® Cortex™-A8 microprocessor operating up to 1 GHz with adaptive core voltage (0.9–1.2 V), integrated 256 KB L2 cache, 32 KB instruction and 32 KB data L1 cache, and 64 KB on-chip SRAM. It supports Linux, Android, and Windows Embedded CE, and targets portable data terminals, automotive infotainment, and industrial HMI systems.
For engineers reviewing the AM3703CUS datasheet, AM3703CUS pinout, AM3703CUS application, or AM3703CUS equivalent, this page provides verified package mapping (423-pin s-PBGA, CUS suffix), confirmed memory interface capabilities (SDRAM controller, GPMC), validated peripheral integration (5 McBSPs, 4 McSPI, 3 I²C, USB OTG/Host), and real-world thermal and power management features including SmartReflex™ AVS and DVFS.
Technical Context
The AM3703CUS implements an in-order, dual-issue, superscalar ARMv7-A architecture with TrustZone® security extensions, Thumb®-2 instruction set, and NEON™ SIMD coprocessor for accelerated multimedia processing. Its memory subsystem includes a 16-/32-bit SDRAM controller (SDRC) with SMS scheduler and rotation engine, plus a 16-bit multiplexed GPMC supporting NOR/NAND flash, SRAM, and FPGA glueless interfacing.
Peripherals are hierarchically connected via L3/L4 interconnect networks. The device integrates POWERVR SGX graphics acceleration only in AM3715 - not in AM3703CUS - and omits Package-on-Package (POP) memory stacking support per datasheet specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ARM Cortex-A8, ARMv7-A, TrustZone®, Thumb-2, in-order dual-issue superscalar |
| Max Operating Frequency | 1 GHz (also supports 300/600/800 MHz operation with adaptive voltage scaling) |
| L1 Cache | 32 KB instruction + 32 KB data, 4-way set-associative |
| L2 Cache | 256 KB unified, configurable as write-back or write-through |
| On-Chip Memory | 64 KB SRAM + 32 KB ROM; no integrated graphics accelerator (SGX excluded in AM3703) |
| Process Technology | 45-nm CMOS; SmartReflex™ AVS enables dynamic voltage/frequency scaling |
| Temperature Grade | Commercial and extended temperature variants available (−40°C to +105°C junction) |
Pinout & Package
AM3703CUS is housed in a 423-ball, 0.65 mm pitch, plastic ball grid array (s-PBGA-N423) package with no top-side balls. Pin assignments follow quadrant-based layout (A–D) with multiplexed functions across GPIO, memory, and peripheral interfaces. Ball-level signal names and electrical characteristics are fully documented in TI SPRS616F Section 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| sdrc_dqs0–sdrc_dqs3 | SDRAM Data Strobe | Four differential DQS pairs for precise timing control of 32-bit SDRAM data bus |
| gpmc_a0–gpmc_a11 | GPMC Address Bus | 12-bit multiplexed address bus supporting up to 8 chip selects and 128 MB per CS |
| gpmc_d0–gpmc_d15 | GPMC Data Bus | 16-bit bidirectional data bus for glueless NAND/NOR/SRAM/FPGA interfacing |
| mcbsp1_dx / mcbsp1_dr | McBSP1 Data I/O | Full-duplex serial audio interface supporting I²S, PCM, and SIDETONE (McBSP2/3 only) |
| usb0_data0–usb0_data7 | HS USB 0 Data Bus | 8-bit parallel ULPI interface for high-speed USB OTG operation (480 Mbps) |
| sys_xtalin / sys_xtalout | Crystal Oscillator Input/Output | Supports 19.2 MHz or 38.4 MHz crystal; internal oscillator drives system clocks |
Key Features
| Feature | Design Value |
|---|---|
| SmartReflex™ AVS | Real-time adaptive voltage scaling reduces dynamic power by up to 40% vs. fixed-voltage operation |
| Memory Controller Flexibility | SDRC + GPMC enable concurrent low-latency SDRAM access and high-density flash storage |
| Multichannel Audio Support | 5 McBSP ports with dedicated sidetone logic (McBSP2/3) for hands-free voice processing |
| Secure Boot & Debug | 32 KB ROM bootloader with SHA-1/DES/3DES/AES engines; JTAG, ETM, SDTI for secure trace/debug |
| Industrial Peripheral Set | 12 GP timers, 3 watchdogs (including secure WDT), 188 multiplexed GPIOs with interrupt capability |
Applications
| Portable Data Terminal | Automotive Infotainment |
|---|---|
Use Scenario: Rugged handheld scanner running Linux with barcode decoding, wireless comms, and battery-aware UI. IC Role / Device Role / Timing Role: Main application processor managing OS, peripherals (USB, UART, McBSP), and real-time power management. Use Value: Adaptive voltage scaling and 1-GHz performance enable responsive UI while extending battery life beyond 8 hours. |
Use Scenario: In-vehicle head unit supporting navigation, media playback, Bluetooth telephony, and rear-seat video. IC Role / Device Role / Timing Role: Central MPU coordinating display (DSS), audio (McBSP), CAN gateway (via UART/I²C), and USB host for media devices. Use Value: Integrated SDRC + GPMC allows local NAND boot + DDR2 runtime memory; 188 GPIOs support diverse sensor/actuator interfaces. |
| Industrial HMI | Medical Imaging Display |
Use Scenario: Panel-mounted operator interface with touch screen, Ethernet, and PLC communication over RS-485. IC Role / Device Role / Timing Role: Real-time control hub executing deterministic UI rendering and fieldbus protocol stacks (Modbus, EtherNet/IP). Use Value: Dual 32-bit watchdogs and secure timer ensure fail-safe watchdog supervision; extended temp grade (−40°C to +105°C) ensures reliability in factory environments. |
Use Scenario: Portable ultrasound or X-ray preview station requiring high-resolution image buffering and HDMI output. IC Role / Device Role / Timing Role: Image pipeline controller handling camera ISP input, resize engine, and triple-layer display processor (DSS) output. Use Value: Dedicated BT.656/BT.601 video interface and hardware resize engine (1/4× to 4×) reduce CPU load during real-time image scaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ARM application processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM3715CUS | Includes POWERVR SGX graphics accelerator; otherwise identical pinout, package, and peripheral set | Required for OpenGL ES 1.1/2.0 GPU-accelerated UI or gaming; adds ~150 mW typical active power | Select AM3715CUS when GPU offload is needed; AM3703CUS saves cost/power where graphics are software-rendered or absent |
| AM3358BZCZ100 | ARM Cortex-A8 at 1 GHz, but on 32-bit DDR2/DDR3 (not SDR/DDR2 like AM3703); smaller 324-pin package; lacks McBSP sidetone | Better suited for cost-sensitive industrial gateways with Ethernet PRU support; no native video capture path | Choose AM3358BZCZ100 for PRU-based real-time I/O or lower BOM cost; AM3703CUS retains legacy video/audio peripheral compatibility |
Compared with AM3715CUS and AM3358BZCZ100, the AM3703CUS delivers optimal balance of legacy peripheral support (McBSP sidetone, BT.656 camera interface), SDRAM/GPMC flexibility, and power efficiency - making it ideal for re-spinning existing OMAP3-compatible designs without GPU requirements.
Availability
AM3703CUS is available at Aetrix Electronics and suitable for portable data terminals, automotive infotainment systems, and industrial HMI applications requiring stable component supply, long-term lifecycle support, and full documentation traceability.
Supply support for AM3703CUS 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 connectivity technologies, with leadership in industrial, automotive, and communications markets.
The AM37x Sitara™ family was designed to deliver high-performance ARM application processing with integrated multimedia and industrial peripherals - targeting Linux- and Android-based edge devices where legacy interface compatibility and thermal efficiency are critical.
FAQ
Does the AM3703CUS include an integrated GPU?
No, the AM3703CUS does not include the POWERVR SGX graphics accelerator. That feature is exclusive to the AM3715 variant. The AM3703CUS relies on CPU-based rendering or external graphics solutions. All other core, memory, and peripheral specifications - including 1-GHz Cortex-A8 operation, 256 KB L2 cache, and 5 McBSP ports - are identical between AM3703CUS and AM3715CUS.
What is the package type and ball pitch for AM3703CUS?
The AM3703CUS uses a 423-ball s-PBGA-N423 package with 0.65 mm ball pitch and no top-side balls. This differs from the 515-ball CBP/CBC packages (0.5/0.65 mm pitch). Mechanical drawings and solder mask specifications are defined in TI SPRS616F Section 5. The CUS suffix explicitly denotes this 423-ball configuration.
Can AM3703CUS run Android or Linux out of the box?
Yes, AM3703CUS is fully supported by TI's open-source software stack, including Linux kernel (3.x+), Android (2.3+), and Windows Embedded CE. TI provides board support packages (BSPs), drivers, and reference bootloaders (X-Loader + U-Boot) optimized for the AM3703CUS memory map, clock tree, and peripheral initialization sequence.
How does SmartReflex™ work on AM3703CUS?
SmartReflex™ on AM3703CUS uses on-die process/voltage/temperature sensors to dynamically adjust core voltage (0.9–1.2 V) and frequency in real time. It operates autonomously via hardware state machines, reducing active power by up to 40% without software intervention - critical for battery-powered portable data terminals using AM3703CUS.
Is AM3703CUS pin-compatible with AM3715CUS?
Yes, AM3703CUS and AM3715CUS share identical 423-ball s-PBGA-N423 packaging, pinout, and signal mapping. They are drop-in replacements at the PCB level. The sole functional difference is the presence (AM3715) or absence (AM3703) of the POWERVR SGX graphics engine - all memory, peripheral, and power domains remain electrically and mechanically identical.
AM3703CUS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 423-LFBGA, FCBGA
- Series:
- Sitara™
- Packaging:
- Tray
- Product Status:
- Active
- Core Processor:
- ARM® Cortex®-A8
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 800MHz
- Co-Processors/DSP:
- Multimedia; NEON™ SIMD
- RAM Controllers:
- SDRAM
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- LCD
- Ethernet:
- -
- SATA:
- -
- USB:
- USB 2.0 (4)
- Voltage - I/O:
- 1.8V
- Operating Temperature:
- 0°C ~ 90°C (TJ)
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 423-FCBGA (16x16)
- Additional Interfaces:
- HDQ/1-Wire, I2C, McBSP, McSPI, MMC/SD/SDIO, UART
AM3703CUS FAQ
1.How can I place an order for AM3703CUS through Aetrix?
Please submit a Request for Quotation (RFQ) for AM3703CUS 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 AM3703CUS reliable?
The price and inventory of AM3703CUS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AM3703CUS is usually 5 days.
3.What payment methods are accepted for AM3703CUS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AM3703CUS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AM3703CUS?
AM3703CUS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AM3703CUS 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 AM3703CUS?
For technical support, including AM3703CUS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AM3703CUS requirements.
6.How does Aetrix verify that AM3703CUS is sourced from the original manufacturer or authorized distributors?
All AM3703CUS 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 AM3703CUS meets industry standards.
7.What is the process for return or replacement of AM3703CUS?
All AM3703CUS units undergo pre-shipment inspection (PSI). If there is an issue with AM3703CUS, 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 AM3703CUS part is unused and in its original packaging.
Return procedure for AM3703CUS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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