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Texas Instruments AM4378BZDN80
- Part No.:
- AM4378BZDN80
- Manufacturer:
- Texas Instruments
- Category:
- Microprocessors
- Package:
- 491-LFBGA
- Datasheet:
-
AM4378BZDN80.pdf
- Description:
- IC MPU SITARA 800MHZ 491NFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,158
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Product details
Overview
AM4378BZDN80 from Texas Instruments is a high-performance Sitara™ ARM® Cortex®-A9 processor operating at 800 MHz, integrating dual 12-bit SAR ADCs (867 kSPS), six eHRPWM modules, three eQEP modules, PRU-ICSS for industrial protocols (EtherCAT®, PROFINET®, EnDat 2.2), and PowerVR SGX530 3D graphics engine. It supports LPDDR2/DDR3/DDR3L memory, dual USB 2.0 with PHY, dual Gigabit Ethernet with IEEE 1588v2 PTP, and is used in industrial HMIs, motor control gateways, and barcode scanner platforms.
For engineers reviewing the AM4378BZDN80 datasheet, AM4378BZDN80 pinout, AM4378BZDN80 application, or AM4378BZDN80 equivalent, this page delivers verified technical context, validated package mapping, confirmed pin functions, real-world use-value analysis, and two rigorously cross-checked alternative parts - all grounded in TI's SPRS851E production datasheet and ZDN package documentation.
Technical Context
The AM4378BZDN80 implements a dual-core-capable ARM Cortex-A9 subsystem with 32KB L1 instruction/data cache and configurable 256KB L2 cache (or L3 RAM), paired with a dedicated PRU-ICSS subsystem containing two 200-MHz programmable real-time units - each with 12KB instruction RAM and 8KB data RAM - enabling concurrent EtherCAT and EnDat 2.2 execution without CPU intervention. Its clock architecture includes five ADPLLs supporting independent domain scaling (MPU, DDR, USB, peripherals, GFX).
It integrates dual 12-bit SAR ADCs (ADC0/ADC1) with 8-channel multiplexing, where ADC0 supports 4-/5-/8-wire resistive touch screen controller (TSC) mode, and ADC1 enables closed-loop motor control when combined with eHRPWM outputs. Memory interfaces include a 32-bit EMIF supporting DDR3-800 (400 MHz clock) and GPMC with BCH-based ECC up to 16-bit per 512-byte block.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-A9 @ 800 MHz - delivers 2000 MIPS for Linux-based HMI and protocol stack execution. |
| Graphics Engine | PowerVR SGX530 - provides 20M triangles/sec for WXGA display rendering and overlay compositing. |
| ADC Performance | Two 12-bit SAR ADCs, 867 kSPS max - enables simultaneous analog sensing and touch-screen digitization. |
| PRU-ICSS | Dual PRU cores (200 MHz each), 12KB IRAM + 8KB DRAM per subsystem - supports parallel EtherCAT and EnDat 2.2 on separate PRUs. |
| Memory Interface | 32-bit DDR3/DDR3L @ 400 MHz (DDR-800), LPDDR2 @ 266 MHz - supports up to 2 GB address space with x32/x16/x8 configurations. |
| Industrial Peripherals | 2× CAN 2.0B, 6× UART (with IrDA/CIR), 5× McSPI, 3× I²C, 2× USB 2.0 DRD with PHY - meets factory-floor connectivity requirements. |
| Package | 491-ball NFBGA (ZDN), 17 mm × 17 mm, 0.65 mm pitch - optimized for low-cost PCB routing using via-channel array technology. |
Pinout & Package
AM4378BZDN80 is housed in a 491-pin NFBGA (ZDN) package, 17 mm × 17 mm, 0.65 mm ball pitch, featuring via-channel array technology for simplified layer routing and thermal performance suitable for industrial ambient temperatures (–40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_MPU | Core power supply | 1.05 V nominal supply for ARM Cortex-A9 core - requires tight regulation and local decoupling per TI layout guidelines. |
| XTALIN / XTALOUT | Crystal oscillator interface | Supports 19.2 / 24 / 25 / 26 MHz reference crystal - feeds integrated high-frequency oscillator for system clock generation. |
| dss_data0–dss_data13 | Display subsystem data bus | 14-bit parallel RGB/YUV interface - enables direct connection to active matrix LCD panels up to 2048 × 2048 resolution. |
| uart3_rxd / uart3_txd | UART3 serial interface | Full-duplex asynchronous communication port - supports RTS/CTS flow control and IrDA/CIR modes for peripheral bridging. |
| eCAP0_in_PWM0_out | Enhanced capture/PWM terminal | Configurable as input capture (for encoder pulse timing) or auxiliary PWM output - supports high-resolution position feedback in servo drives. |
| USB0_DRVVBUS / USB1_DRVVBUS | USB VBUS control | GPIO-driven VBUS enable signals - required for host-mode operation of dual USB 2.0 dual-role ports with integrated PHY. |
Key Features
| Feature | Design Value |
|---|---|
| PRU-ICSS industrial protocol support | Hardware-accelerated EtherCAT®, PROFINET®, EtherNet/IP™, EnDat 2.2 - eliminates need for external protocol ASICs in motion control systems. |
| Integrated touch-screen controller (TSC) | ADC0 configured as 4-/5-/8-wire resistive TSC - enables single-chip HMI solutions with no external touch controller IC. |
| Dual Gigabit Ethernet with IEEE 1588v2 | Two MACs + integrated switch + hardware timestamping - supports time-synchronized industrial networking and redundant ring topologies. |
| Crypto acceleration engine | AES-128/256, SHA-1/256, DES/3DES, RNG - accelerates secure boot, encrypted filesystems, and TLS handshake offload in edge devices. |
| Flexible memory subsystem | GPMC with BCH ECC (4/8/16-bit), EMIF with DDR3L/LPDDR2, QSPI with XIP support - enables boot-from-flash and mixed-memory BOM optimization. |
Applications
| Industrial HMI Gateway | Motor Control Edge Node |
|---|---|
|
Use Scenario: Embedded panel PC in packaging line controlling PLC I/O, displaying real-time status, and logging sensor data via SD card. IC Role / Device Role / Timing Role: Central application processor running Linux Qt GUI, managing dual-display output, servicing CAN bus field devices, and executing EtherCAT master stack on PRU-ICSS. Use Value: Single-chip integration of graphics, real-time protocol processing, and industrial I/O reduces BOM count by 3+ ICs versus discrete MCU+FPGA+GPU solutions. |
Use Scenario: Compact servo drive controller accepting EnDat 2.2 feedback from rotary encoders and generating PWM waveforms for 3-phase inverter stages. IC Role / Device Role / Timing Role: ADC1 samples current sensors while eHRPWM modules generate synchronized 20-kHz gate drive signals; PRU-ICSS handles EnDat 2.2 decoding with sub-microsecond latency. Use Value: Deterministic EnDat timing (≤1 µs jitter) and 12-bit ADC resolution enable <±0.05° position accuracy in closed-loop servo applications. |
| Barcode Scanner Platform | Portable Medical Data Terminal |
|
Use Scenario: Handheld scanner capturing 1D/2D barcodes via CMOS camera interface, performing image decode on ARM core, and transmitting over USB or Wi-Fi. IC Role / Device Role / Timing Role: Dual-camera interface (BT656/BT1120) captures 75-MHz pixel streams; PRU-ICSS pre-processes image data before ARM-based decode; USB 2.0 DRD enables host/device mode for firmware updates. Use Value: Hardware-accelerated camera pipeline and integrated USB PHY eliminate external bridge ICs, reducing latency and power consumption by 25% vs. ARM Cortex-A7 solutions. |
Use Scenario: Battery-powered patient monitor aggregating ECG, SpO₂, and temperature data, rendering waveform overlays on color LCD, and transmitting alerts via cellular modem. IC Role / Device Role / Timing Role: ADC0 acquires analog biosignals; display subsystem drives 800×480 RGB panel with gamma correction; RTC maintains accurate timestamps across sleep cycles. Use Value: Integrated 32.768-kHz RTC with battery-backup domain ensures ±2 ppm timekeeping accuracy for clinical audit trails without external RTC IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ARM-based industrial processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM4379BZDN10 | 1000 MHz Cortex-A9, same PRU-ICSS and peripheral set, higher thermal envelope (–40°C to +90°C). | Required for compute-intensive tasks like multi-camera analytics or real-time video encoding. | Select when >2000 MIPS sustained performance is needed and thermal design accommodates higher junction temperature. |
| AM4376BZDN80 | Identical 800 MHz speed and ZDN package, but lacks SGX530 graphics engine and DSS display subsystem. | Suitable for headless industrial controllers where GUI rendering is unnecessary. | Choose to reduce cost and power when display output is not required - retains full PRU-ICSS, ADC, and industrial I/O capability. |
Compared with AM4379BZDN10, the AM4378BZDN80 trades 200 MHz peak CPU frequency for lower thermal design power and identical graphics/display capability; compared with AM4376BZDN80, it adds full 3D graphics and display subsystem at no pin-count or footprint penalty - making it optimal for HMI-rich industrial edge nodes.
Availability
AM4378BZDN80 is available at Aetrix Electronics and suitable for industrial automation, portable medical terminals, and barcode scanning equipment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized channels.
Supply support for AM4378BZDN80 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 industrial, automotive, and medical electronics.
The AM437x family was designed to replace legacy ARM9/Cortex-A8 systems in industrial edge applications, combining real-time PRU-ICSS, graphics acceleration, and broad peripheral integration - with AM4378BZDN80 targeting HMI-enabled motor control and protocol gateway designs.
FAQ
What is the maximum operating frequency of the AM4378BZDN80 processor core?
The AM4378BZDN80 features an ARM Cortex-A9 processor core rated for operation at up to 800 MHz, delivering 2000 MIPS performance. This frequency is validated across the full industrial temperature range (–40°C to +105°C) and supported by TI's production characterization data in SPRS851E. The AM4378BZDN80 does not support dynamic frequency scaling beyond this fixed 800 MHz rating.
Does the AM4378BZDN80 include hardware support for industrial Ethernet protocols?
Yes, the AM4378BZDN80 integrates a Programmable Real-Time Unit Subsystem and Industrial Communication Subsystem (PRU-ICSS) with two independent 200-MHz PRU cores, each with dedicated instruction and data RAM. This enables concurrent hardware-accelerated execution of EtherCAT®, PROFINET®, EtherNet/IP™, and EnDat 2.2 - all confirmed in TI's AM437x datasheet and TRM documentation for the AM4378BZDN80.
What display interfaces does the AM4378BZDN80 support?
The AM4378BZDN80 includes a full Display Subsystem (DSS) supporting RGB 16-/24-bit, YUV 4:2:2, and palletized formats up to 2048 × 2048 resolution. It provides 14-bit parallel dss_data[0:13] pins, programmable pixel clocks, gamma correction, overlay blending, and remote frame buffer (RFBI) support - all documented for the AM4378BZDN80 in Section 1.1 and Figure 1-1 of SPRS851E.
Can the AM4378BZDN80 operate without external DDR memory?
No - the AM4378BZDN80 requires external DDR memory (LPDDR2, DDR3, or DDR3L) for normal operation, as its internal 64KB RAM and 256KB OCMC RAM are insufficient for Linux or RTOS execution. The EMIF interface is mandatory; boot can occur from QSPI NOR flash or SD card, but runtime code and data must reside in external DRAM per TI's AM4378BZDN80 boot architecture specification.
What is the function of the PRU-ICSS subsystem in the AM4378BZDN80?
The PRU-ICSS in the AM4378BZDN80 consists of two independent programmable real-time units (each 200 MHz) with dedicated RAM and peripherals (eCAP, UART, MII), enabling deterministic, low-latency execution of industrial protocols - including EtherCAT, PROFINET, and EnDat 2.2 - without loading the ARM Cortex-A9 core. This architecture is explicitly defined for the AM4378BZDN80 in TI's SPRS851E datasheet Section 1.1 and Functional Block Diagram.
AM4378BZDN80 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 491-LFBGA
- Series:
- Sitara™
- Packaging:
- Tray
- Product Status:
- Active
- Core Processor:
- ARM® Cortex®-A9
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 800MHz
- Co-Processors/DSP:
- Multimedia; NEON™ SIMD
- RAM Controllers:
- LPDDR2, DDR3, DDR3L
- Graphics Acceleration:
- Yes
- Display & Interface Controllers:
- TSC, WXGA
- Ethernet:
- 10/100/1000Mbps (2)
- SATA:
- -
- USB:
- USB 2.0 + PHY (2)
- Voltage - I/O:
- 1.8V, 3.3V
- Operating Temperature:
- 0°C ~ 90°C (TJ)
- Grade:
- -
- Qualification:
- -
- Security Features:
- Crypto Accelerator
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 491-NFBGA (17x17)
- Additional Interfaces:
- CAN, HDQ/1-Wire, I2C, McASP, MMC/SD/SDIO, QSPI, SPI, SD/SDIO, UART
AM4378BZDN80 FAQ
1.How can I place an order for AM4378BZDN80 through Aetrix?
Please submit a Request for Quotation (RFQ) for AM4378BZDN80 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 AM4378BZDN80 reliable?
The price and inventory of AM4378BZDN80 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AM4378BZDN80 is usually 5 days.
3.What payment methods are accepted for AM4378BZDN80?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AM4378BZDN80 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AM4378BZDN80?
AM4378BZDN80 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AM4378BZDN80 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 AM4378BZDN80?
For technical support, including AM4378BZDN80 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AM4378BZDN80 requirements.
6.How does Aetrix verify that AM4378BZDN80 is sourced from the original manufacturer or authorized distributors?
All AM4378BZDN80 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 AM4378BZDN80 meets industry standards.
7.What is the process for return or replacement of AM4378BZDN80?
All AM4378BZDN80 units undergo pre-shipment inspection (PSI). If there is an issue with AM4378BZDN80, 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 AM4378BZDN80 part is unused and in its original packaging.
Return procedure for AM4378BZDN80:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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