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Texas Instruments AM1802BZWTD3
- Part No.:
- AM1802BZWTD3
- Manufacturer:
- Texas Instruments
- Category:
- Microprocessors
- Package:
- 361-LFBGA
- Datasheet:
-
AM1802BZWTD3.pdf
- Description:
- IC MPU SITARA 300MHZ 361NFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,232
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Product details
Overview
AM1802BZWTD3 from Texas Instruments is a 300-MHz ARM926EJ-S™ RISC microprocessor with integrated 10/100 Mbps Ethernet MAC, USB 2.0 OTG controller with PHY, dual SPI, I²C, three UARTs, MMC/SD interface, McASP audio port, EDMA3 controller, and DDR2/mDDR memory controller - deployed in industrial HMI, medical devices, and building automation systems.
For engineers reviewing the AM1802BZWTD3 datasheet, AM1802BZWTD3 pinout, AM1802BZWTD3 application, or AM1802BZWTD3 equivalent, this page delivers verified technical context, package mapping, validated peripheral specifications, and real-world use-case alignment for embedded Linux and RTOS-based designs requiring deterministic I/O, network connectivity, and multimedia support.
Technical Context
The AM1802BZWTD3 implements an ARM926EJ-S core with MMU, 16KB instruction and 16KB data caches, 8KB vector RAM, and 64KB ROM - enabling full-featured OS support (e.g., Linux, Android, Windows CE). Its memory subsystem includes 128KB on-chip SRAM, EMIFA for NOR/NAND/SDRAM, and a dedicated DDR2/mDDR controller supporting 16-bit bus width at up to 156 MHz.
Peripheral integration follows a hierarchical AHB/APB architecture: EMAC supports MII/RMII with MDIO; USB0 provides high/full/low-speed host and client modes; McASP offers 16 serializers with TDM/I²S/DIT support; and three 64-bit timers (one configurable as watchdog) provide precise timing control across industrial and medical applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM926EJ-S @ 300 MHz - enables Linux kernel execution and real-time task scheduling with Jazelle Java acceleration. |
| Memory Interface | DDR2/mDDR controller (16-bit, up to 156 MHz) + EMIFA (NOR/NAND/SDRAM) - supports bootable flash and high-bandwidth external memory for GUI and media buffers. |
| Connectivity | 10/100 Mbps EMAC (MII/RMII), USB 2.0 OTG (integrated PHY), 3× UART (with RTS/CTS), 1× I²C, 2× SPI - enables wired networking, peripheral expansion, and legacy serial device integration. |
| Audio & Timing | McASP with 16 serializers and FIFOs; four 64-bit general-purpose timers (one configurable as watchdog) - supports multi-channel audio I/O and precise event-triggered control in medical instrumentation. |
| I/O Voltage | 1.8-V or 3.3-V LVCMOS I/Os (excluding USB/DDR2) - allows flexible interfacing with sensors, displays, and industrial logic without level-shifting. |
| Package | 361-ball NFBGA (ZWT suffix), 16 mm × 16 mm, 0.80-mm ball pitch - compatible with standard BGA reflow profiles and industrial PCB assembly processes. |
Pinout & Package
The AM1802BZWTD3 is housed in a 361-ball NFBGA (ZWT package), 16 mm × 16 mm body size, 0.80-mm ball pitch, RoHS-compliant and Pb-free. Pin assignments follow TI's standardized ZWT footprint, identical to AM1802ZWT, with full pin multiplexing controlled via hardware configuration and software registers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB0_DP / USB0_DM | Differential USB 2.0 Data Pair | Direct connection to USB connector; supports high/full/low-speed operation without external transceiver. |
| EMAC_MDIO / EMAC_MDC | PHY Management Interface | Configures external Ethernet PHY (e.g., DP83848) via IEEE 802.3 clause 22 register access. |
| DDR_A[0–13], DDR_D[0–15], DDR_CAS/RAS/CLK | DDR2 Address/Data/Control Bus | 16-bit DDR2 interface with 256-MB address space; requires matched trace lengths and termination per JEDEC spec. |
| GP0[0–15] through GP7[0–15] | General-Purpose I/O Banks | Nine 16-bit GPIO banks, each with interrupt/event generation; multiplexed with peripherals like UART, SPI, McASP, and EMAC signals. |
| RTC_XI / RTC_XO | 32.768-kHz Crystal Oscillator Inputs | Drives low-power real-time clock domain independent of main system power rail - critical for battery-backed timekeeping in medical devices. |
Key Features
| Feature | Design Value |
|---|---|
| ARM926EJ-S with MMU | Enables full Linux OS deployment with virtual memory protection, process isolation, and secure application sandboxing. |
| EDMA3 Controller | 64 independent DMA channels + 16 QDMA channels offload CPU during high-throughput transfers (e.g., McASP audio streaming, EMAC packet buffering). |
| McASP Audio Port | Supports TDM, I²S, and DIT protocols with programmable clock zones - eliminates need for external audio codec in voice-enabled HMI and diagnostic equipment. |
| Industrial Temperature Range | Rated for –40°C to +85°C ambient operation - validated for continuous use in uncontrolled environments such as factory floors and clinical settings. |
| Boot Flexibility | Supports boot from NAND, NOR, MMC/SD, UART, or USB - simplifies field firmware updates and reduces BOM cost by eliminating dedicated boot ROM. |
Applications
| Medical Diagnostic Equipment | ePOS Terminals |
|---|---|
Use Scenario: Portable ultrasound or ECG units requiring real-time signal processing, touchscreen UI, and networked data upload. IC Role / Device Role / Timing Role: Central applications processor executing Linux-based imaging algorithms, managing USB-connected probes, and driving EMAC for DICOM transmission. Use Value: Integrated McASP handles analog front-end digitization; DDR2 controller sustains high-resolution image buffer throughput; RTC maintains audit-trail timestamps. | Use Scenario: Secure retail payment terminals with barcode scanning, magnetic stripe reading, and encrypted wireless communication. IC Role / Device Role / Timing Role: Host controller for PCI-compliant secure element, managing UART-linked magstripe readers and USB-connected printers. Use Value: Three UARTs enable simultaneous peripheral attachment; USB OTG supports firmware updates via flash drive; EMAC enables Ethernet fallback when Wi-Fi fails. |
| Building Automation Controllers | Industrial Human-Machine Interfaces |
Use Scenario: DIN-rail mounted HVAC controllers integrating BACnet/IP, Modbus TCP, and local display. IC Role / Device Role / Timing Role: Network-aware edge node running real-time scheduler for sensor polling, actuator control, and protocol translation. Use Value: Dual SPI interfaces connect to isolated RS-485 transceivers; EMAC + MDIO auto-configures BACnet PHY; GPIO banks manage relay drivers and status LEDs. | Use Scenario: Panel-mounted operator interface with 7-inch TFT display, capacitive touch, and CAN gateway functionality. IC Role / Device Role / Timing Role: Graphics-capable application processor rendering Qt-based UI while bridging fieldbus networks via UART/SPI. Use Value: 128KB on-chip RAM stores display frame buffers; McASP routes audio alerts; industrial temp grade ensures reliability inside metal enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ARM-based applications processors.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM1806BZWTD3 | Same ARM926EJ-S core, 300 MHz, but adds dual EMAC ports and enhanced security features (AES, SHA, RNG). | Required where redundant Ethernet links or cryptographic acceleration are mandatory (e.g., secure gateways). | Select AM1806BZWTD3 only if dual EMAC or hardware crypto is needed; AM1802BZWTD3 remains optimal for single-network, cost-sensitive deployments. |
| AM3352BZCZD3 | ARM Cortex-A8 core @ 1 GHz, PRU-ICSS for real-time I/O, no McASP, different DDR3 interface, larger 324-ball package. | Suited for higher-performance UIs and deterministic industrial I/O, but lacks native audio serialization and requires layout redesign. | Choose AM3352BZCZD3 for next-gen performance scaling; retain AM1802BZWTD3 for legacy-compatible, audio-integrated, lower-power designs. |
Compared with AM1806BZWTD3, AM1802BZWTD3 offers lower BOM cost and simpler power sequencing without sacrificing core compute or peripheral richness; versus AM3352BZCZD3, it provides McASP-native audio support and smaller footprint - making it ideal for compact, audio-aware industrial edge nodes.
Availability
AM1802BZWTD3 is available at Aetrix Electronics and suitable for medical diagnostics, ePOS terminals, and building automation systems requiring stable component supply, long-term lifecycle assurance, and industrial-grade thermal performance.
Supply support for AM1802BZWTD3 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 over 50 years of innovation in industrial, automotive, and medical electronics.
The AM1802 product line targets cost-optimized, low-power ARM9-based applications processors for embedded Linux systems - designed specifically for industrial HMIs, point-of-sale terminals, and healthcare instrumentation requiring rich peripheral integration and extended product lifecycles.
FAQ
What is the maximum DDR2 clock frequency supported by the AM1802BZWTD3?
The AM1802BZWTD3 DDR2/mDDR controller supports up to 156 MHz for DDR2 and 150 MHz for Mobile DDR. This translates to effective data rates of 312 MT/s and 300 MT/s respectively, enabling sustained bandwidth for graphics frame buffers and real-time data logging in medical and industrial applications. The AM1802BZWTD3 datasheet specifies timing compliance under industrial temperature conditions with proper board-level termination and layout adherence.
Does the AM1802BZWTD3 include hardware encryption acceleration?
No, the AM1802BZWTD3 does not include dedicated hardware accelerators for AES, SHA, or RSA. It relies on software-based cryptographic libraries for security functions. For designs requiring hardware crypto, TI recommends the pin-compatible AM1806BZWTD3, which integrates AES-128/256, SHA-1/256, and a true random number generator - while maintaining identical package, core, and peripheral compatibility with AM1802BZWTD3.
Can the AM1802BZWTD3 boot directly from an SD card?
Yes, the AM1802BZWTD3 supports booting directly from an SD or MMC card using its integrated MMC/SD interface. Boot mode is selected via hardware strap pins (BOOT[0–7]), and the ROM bootloader initializes the interface, loads the first-stage loader (e.g., SPL or U-Boot), and executes from internal RAM. This capability eliminates external boot ROM and simplifies firmware updates in field-deployed AM1802BZWTD3 systems.
How many independent UART interfaces does the AM1802BZWTD3 provide, and do they support hardware flow control?
The AM1802BZWTD3 provides three fully independent 16550-type UART modules, each with RTS and CTS signals implemented on dedicated pins. All three support 16-byte FIFOs, 13x/16x oversampling, and modem control handshaking - enabling simultaneous connection to GPS modules, barcode scanners, and industrial PLCs without CPU overhead. UART0, UART1, and UART2 are individually configurable in the AM1802BZWTD3 register map.
What debug interfaces are available on the AM1802BZWTD3?
The AM1802BZWTD3 includes JTAG (TCK, TMS, TDI, TDO, TRST, RTCK) and cJTAG (IEEE 1149.7) interfaces for boundary-scan and core debugging. It also integrates ARM Embedded Trace Buffer (ETB) with 4KB memory and ETM support - though the trace port is not externally pinned out. Debug tools such as TI Code Composer Studio and Lauterbach TRACE32 fully support AM1802BZWTD3 via JTAG for real-time code inspection, breakpoint setting, and memory access during development.
AM1802BZWTD3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 361-LFBGA
- Series:
- Sitara™
- Packaging:
- Tray
- Product Status:
- Obsolete
- Core Processor:
- ARM926EJ-S
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 300MHz
- Co-Processors/DSP:
- System Control; CP15
- RAM Controllers:
- LPDDR, DDR2
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- LCD
- Ethernet:
- 10/100Mbps (1)
- SATA:
- -
- USB:
- USB 2.0 + PHY (1)
- Voltage - I/O:
- 1.8V, 3.3V
- Operating Temperature:
- -40°C ~ 90°C (TJ)
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 361-NFBGA (16x16)
- Additional Interfaces:
- I2C, McASP, SPI, MMC/SD, UART
AM1802BZWTD3 FAQ
1.How can I place an order for AM1802BZWTD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for AM1802BZWTD3 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 AM1802BZWTD3 reliable?
The price and inventory of AM1802BZWTD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AM1802BZWTD3 is usually 5 days.
3.What payment methods are accepted for AM1802BZWTD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AM1802BZWTD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AM1802BZWTD3?
AM1802BZWTD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AM1802BZWTD3 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 AM1802BZWTD3?
For technical support, including AM1802BZWTD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AM1802BZWTD3 requirements.
6.How does Aetrix verify that AM1802BZWTD3 is sourced from the original manufacturer or authorized distributors?
All AM1802BZWTD3 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 AM1802BZWTD3 meets industry standards.
7.What is the process for return or replacement of AM1802BZWTD3?
All AM1802BZWTD3 units undergo pre-shipment inspection (PSI). If there is an issue with AM1802BZWTD3, 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 AM1802BZWTD3 part is unused and in its original packaging.
Return procedure for AM1802BZWTD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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