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Texas Instruments AM1806EZCEA3
- Part No.:
- AM1806EZCEA3
- Manufacturer:
- Texas Instruments
- Category:
- Microprocessors
- Package:
- 361-LFBGA
- Datasheet:
-
AM1806EZCEA3.pdf
- Description:
- IC MPU SITARA 375MHZ 361NFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,928
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Product details
Overview
AM1806EZCEA3 from Texas Instruments is a 375-MHz ARM926EJ-S™ RISC microprocessor with integrated DDR2/mDDR memory controller, dual eHRPWM modules, three eCAP modules, USB 2.0 OTG with PHY, and PRU subsystem for real-time I/O control-used in industrial HMIs, medical data concentrators, and building automation gateways.
For engineers reviewing the AM1806EZCEA3 datasheet, AM1806EZCEA3 pinout, AM1806EZCEA3 application, or AM1806EZCEA3 equivalent, this page delivers verified specifications, package mapping to 361-ball NFBGA (ZCE), validated peripheral roles, and two confirmed alternative processors for embedded Linux-capable applications requiring deterministic I/O and multi-protocol connectivity.
Technical Context
The AM1806EZCEA3 implements a single-core ARM926EJ-S CPU with MMU, 16KB instruction and 16KB data caches, 8KB vector RAM, and 64KB ROM. It integrates an EDMA3 controller with 64 independent channels and 16 QDMA channels for zero-copy peripheral-to-memory transfers.
Its memory subsystem includes a 16-bit DDR2/mDDR controller supporting up to 256 MB address space, EMIFA for NOR/NAND/SDRAM, and 128KB on-chip SRAM. The PRUSS provides two programmable real-time units with dedicated 4KB IRAM and 512B DRAM per core, exportable R30 register, and software-controllable disable for power gating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM926EJ-S, 32-bit RISC, supports ARM/Thumb/Java bytecodes, with MMU and VIVT caches |
| Max Clock Frequency | 375 MHz at 1.2V core supply-enables deterministic real-time execution under Linux RT or bare-metal |
| Memory Interfaces | 16-bit DDR2/mDDR (256 MB), EMIFA (NOR/NAND/SDRAM), 128KB on-chip SRAM |
| USB Interface | USB 2.0 OTG with integrated PHY, supports high/full/low-speed host and client modes |
| eHRPWM & eCAP | Two enhanced HRPWMs (dual-edge asymmetric outputs, dead-band generation) and three eCAP modules (configurable as capture or APWM) |
| PRU Subsystem | Two independent PRU cores, 4KB IRAM + 512B DRAM each, R30 register exported for external signal routing |
| I/O Voltage | 1.8-V or 3.3-V LVCMOS (excluding USB and DDR2 interfaces)-supports mixed-voltage system integration |
Pinout & Package
AM1806EZCEA3 is housed in a 361-ball NFBGA (ZCE suffix) package with 13.0 mm × 13.0 mm body size and 0.65-mm ball pitch. Pin functions are multiplexed across nine GPIO banks (16 pins each), with dedicated signals for DDR2, EMIFA, USB, McASP, McBSP, uPP, VPIF, and PRU I/O.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VP_CLKOUT2 / PRU1_R30[0] / GP6[1] | Programmable output / PRU register export / GPIO | Enables direct routing of PRU1 R30 bit 0 to external logic without software intervention |
| USB0_VDDA12 | Analog supply for USB PHY | Requires 0.22-μF external decoupling capacitor-critical for USB 2.0 high-speed signal integrity |
| DDR2_DQ[0:15] | Data bus for DDR2 interface | 16-bit bidirectional data path supporting 156 MHz operation-maps directly to JEDEC-compliant DDR2 SDRAM |
| EMIFA_A[0:22] | Address bus for EMIFA | 23-bit address lines enabling up to 128 MB of asynchronous memory space (CS0–CS5) |
| PRU0_R31[1] | PRU0 status/output register bit | Exported PRU0 R31 bit 1 used for real-time event signaling or synchronization with ARM subsystem |
Key Features
| Feature | Design Value |
|---|---|
| PRU Subsystem | Two independent real-time coprocessors with local memory, enabling offload of time-critical I/O (e.g., encoder counting, PWM modulation) from ARM core |
| EDMA3 Architecture | Dual channel controllers + three transfer controllers + dedicated interrupt controller-eliminates CPU polling for high-throughput serial/audio/video data movement |
| uPP Interface | 8–16-bit parallel data width per channel, START/ENABLE/WAIT controls-direct FPGA or ADC/DAC interfacing without glue logic |
| VPIF Video I/O | Supports BT.656 8-bit SD video capture/display and raw 8/10/12-bit formats-enables embedded vision preprocessing without external video processor |
| Memory Protection Units | Two MPU blocks enforce access rights across ARM, PRU, and DMA masters-prevents firmware corruption in safety-aware industrial firmware |
Applications
| Industrial HMI Gateway | Medical Data Concentrator |
|---|---|
Use Scenario: Standalone edge gateway aggregating Modbus RTU, CAN, and analog sensor data for cloud upload via Ethernet or cellular. IC Role / Device Role / Timing Role: Central applications processor running embedded Linux, managing protocol stacks, real-time PRU-based sensor sampling, and USB-hosted diagnostic port. Use Value: Integrated eCAP/eHRPWM enables precise timing for pulse-based sensors; DDR2 interface supports local SQLite database buffering during network outages. |
Use Scenario: Portable patient monitor collecting ECG, SpO₂, and temperature via analog front-end and digital sensors. IC Role / Device Role / Timing Role: Main controller executing FDA-compliant firmware, driving LCD display, managing secure SD card logging, and handling USB device-mode data export. Use Value: On-chip 128KB SRAM stores waveform buffers; McASP supports I²S-connected audio codec; RTC with 32-kHz oscillator ensures accurate timestamping. |
| Building Automation Controller | Print Server Appliance |
Use Scenario: DIN-rail mounted HVAC controller interfacing with BACnet MS/TP, LonWorks, and wireless Zigbee endpoints. IC Role / Device Role / Timing Role: Real-time coordinator using PRUSS for deterministic fieldbus timing, ARM for web server and BACnet/IP stack, and UARTs for legacy RS-485 links. Use Value: Dual McBSPs handle simultaneous audio alert playback and telephony interface; EMIFA connects to NOR flash for robust firmware storage. |
Use Scenario: Network-attached print server supporting USB printer sharing, AirPrint, and Mopria over Wi-Fi. IC Role / Device Role / Timing Role: Host processor managing USB device enumeration, PDF rasterization, and TCP/IP stack, with uPP interfacing to FPGA-based print engine controller. Use Value: USB 2.0 OTG operates in device mode for printer attachment; SPI and I²C manage Wi-Fi/BT combo module and power management ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ARM-based applications processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM1808ZCEA3 | Same ZCE package and pinout; higher 456-MHz ARM926EJ-S clock (1.3V core); identical peripheral set | Higher compute throughput for video analytics or multi-threaded middleware; requires tighter thermal design | Select AM1808ZCEA3 when >375 MHz sustained performance is required and voltage/thermal margins allow 1.3V core operation. |
| AM3352BZCZD30 | ARM Cortex-A8 core (300–1000 MHz), PRU-ICSS (dual 200-MHz RISC cores), DDR3 support, no EMIFA | Better single-thread performance and modern toolchain support; lacks NAND/NOR interface but adds Ethernet MAC and PCIe | Choose AM3352BZCZD30 for new designs needing Ethernet, DDR3, or Cortex-A8 compatibility-requires PCB redesign due to different package (324-BGA) and pinout. |
Compared with AM1808ZCEA3, AM1806EZCEA3 offers lower power and thermal footprint at 375 MHz; versus AM3352BZCZD30, it retains legacy EMIFA-based flash interfacing but lacks DDR3 and integrated Ethernet-making it optimal for cost-sensitive, flash-based industrial controllers where ARM9 ecosystem maturity is critical.
Availability
AM1806EZCEA3 is available at Aetrix Electronics and suitable for industrial HMIs, medical data concentrators, and building automation controllers requiring stable component supply, long-term lifecycle assurance, and qualified sourcing for production ramp.
Supply support for AM1806EZCEA3 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
The AM1806EZCEA3 belongs to TI's Sitara™ ARM processor family, designed specifically for cost-optimized, Linux-capable industrial applications requiring deterministic real-time I/O, mixed-voltage interfacing, and long-lifecycle support.
FAQ
What is the maximum operating frequency of the AM1806EZCEA3?
The AM1806EZCEA3 operates at a maximum frequency of 375 MHz when supplied with 1.2 V to the core voltage rail. This rating is specified under recommended operating conditions and includes margin for junction temperature up to 90°C. The AM1806EZCEA3 does not support the 456-MHz mode-only the AM1806ZWT and AM1808 variants do. Performance validation is documented in Section 3.1 of SPRS658F.
Does the AM1806EZCEA3 include an integrated USB PHY?
Yes, the AM1806EZCEA3 integrates a full-speed and high-speed USB 2.0 OTG PHY compliant with the USB 2.0 specification. The PHY is accessible via the USB0 peripheral block and supports both host and device roles. External termination and the 0.22-μF capacitor on USB0_VDDA12 are mandatory per Section 3.7.17 of the datasheet to ensure signal integrity at 480 Mbps.
Can the PRU subsystem in the AM1806EZCEA3 be used independently of the ARM core?
Yes-the PRU subsystem in the AM1806EZCEA3 can execute autonomously while the ARM core is in idle or deep-sleep states. Each PRU core has dedicated 4KB instruction RAM and 512B data RAM, and PRUSS can be disabled via software to save power. Register R30 of each PRU is exported to pins (e.g., PRU1_R30[0]), enabling hardware-level synchronization without ARM intervention.
What memory types are supported by the EMIFA interface on the AM1806EZCEA3?
The EMIFA interface on the AM1806EZCEA3 supports 8- or 16-bit NOR flash, 8- or 16-bit NAND flash, and 16-bit SDRAM. It provides up to 128 MB of address space across six chip-select regions (CS0–CS5). Timing parameters-including setup, strobe, and hold-are configurable per region and detailed in Section 6.10.5 of SPRS658F.
Is the AM1806EZCEA3 pin-compatible with other members of the AM18xx family?
Yes-the AM1806EZCEA3 shares identical pinout and package (361-ball ZCE NFBGA) with the AM1806ZCE and AM1808ZCE variants. This allows drop-in replacement between 375-MHz and 456-MHz versions without PCB changes, provided power delivery and thermal design accommodate the higher voltage (1.3V) and current of the 456-MHz part.
AM1806EZCEA3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 361-LFBGA
- Series:
- Sitara™
- Packaging:
- Tray
- Product Status:
- Active
- Core Processor:
- ARM926EJ-S
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 375MHz
- Co-Processors/DSP:
- System Control; CP15
- RAM Controllers:
- LPDDR, DDR2
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- LCD
- Ethernet:
- -
- SATA:
- -
- USB:
- USB 2.0 + PHY (1)
- Voltage - I/O:
- 1.8V, 3.3V
- Operating Temperature:
- -40°C ~ 105°C (TJ)
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 361-NFBGA (13x13)
- Additional Interfaces:
- I2C, McASP, McBSP, SPI, MMC/SD, UART
AM1806EZCEA3 FAQ
1.How can I place an order for AM1806EZCEA3 through Aetrix?
Please submit a Request for Quotation (RFQ) for AM1806EZCEA3 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 AM1806EZCEA3 reliable?
The price and inventory of AM1806EZCEA3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AM1806EZCEA3 is usually 5 days.
3.What payment methods are accepted for AM1806EZCEA3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AM1806EZCEA3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AM1806EZCEA3?
AM1806EZCEA3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AM1806EZCEA3 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 AM1806EZCEA3?
For technical support, including AM1806EZCEA3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AM1806EZCEA3 requirements.
6.How does Aetrix verify that AM1806EZCEA3 is sourced from the original manufacturer or authorized distributors?
All AM1806EZCEA3 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 AM1806EZCEA3 meets industry standards.
7.What is the process for return or replacement of AM1806EZCEA3?
All AM1806EZCEA3 units undergo pre-shipment inspection (PSI). If there is an issue with AM1806EZCEA3, 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 AM1806EZCEA3 part is unused and in its original packaging.
Return procedure for AM1806EZCEA3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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