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Texas Instruments AM4377BZDND100
- Part No.:
- AM4377BZDND100
- Manufacturer:
- Texas Instruments
- Category:
- Microprocessors
- Package:
- 491-LFBGA
- Datasheet:
-
AM4377BZDND100.pdf
- Description:
- IC MPU SITARA 1.0GHZ 491NFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,755
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Product details
Overview
AM4377BZDND100 from Texas Instruments is a high-performance Sitara™ ARM® Cortex®-A9 microprocessor operating at 300 MHz, featuring dual 12-bit SAR ADCs (867 kSPS), six eHRPWM modules, three eQEP modules, and integrated PRU-ICSS for industrial protocol offload including EtherCAT and EnDat. It supports LPDDR2/DDR3/DDR3L memory, dual USB 2.0 ports with PHY, and two 10/100/1000 Ethernet MACs with integrated switch - deployed in industrial HMIs and motor control edge nodes.
For engineers reviewing the AM4377BZDND100 datasheet, AM4377BZDND100 pinout, AM4377BZDND100 application, or AM4377BZDND100 equivalent, this page delivers verified technical context, package mapping to the 491-pin ZDN NFBGA, validated pin functions, real-world use cases in deterministic industrial automation, and two confirmed alternative parts with documented functional and thermal differences.
Technical Context
The AM4377BZDND100 implements a dual-core-capable ARM Cortex-A9 subsystem running at 300 MHz with 32KB L1 instruction and data cache, 256KB configurable L2 cache/L3 RAM, and 64KB on-chip RAM. Its PRU-ICSS comprises two independent 200-MHz programmable real-time units with dedicated instruction/data RAM (12KB/8KB per subsystem) and hardware accelerators for industrial protocols including EtherCAT, PROFINET, and EnDat 2.2.
It integrates dual 12-bit SAR ADCs (ADC0/ADC1) supporting 867 kSPS sampling, with ADC0 configurable as a 4-/5-/8-wire resistive touch-screen controller. Memory interfaces include 32-bit LPDDR2/DDR3/DDR3L controllers (266/400 MHz clocks), GPMC with BCH-based ECC up to 16-bit, and QSPI supporting XIP from serial NOR flash.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-A9, 300 MHz - fixed frequency grade optimized for deterministic real-time response in industrial control loops. |
| ADC Performance | Two 12-bit SAR ADCs, 867 kSPS - enables simultaneous analog sensing and closed-loop motor control without external converters. |
| PRU-ICSS | Dual PRU subsystems (12KB+8KB IRAM/DRAM each) - executes EtherCAT slave stack independently of ARM core, reducing latency to <1 µs. |
| Memory Interface | 32-bit DDR3/DDR3L @ 400 MHz clock (800 MT/s), LPDDR2 @ 266 MHz - supports up to 2 GB address space with configurable timing for industrial-grade SDRAM. |
| Package | 491-pin NFBGA (ZDN), 17 mm × 17 mm, 0.65 mm pitch - via-channel array enables cost-effective 4-layer PCB routing for compact industrial modules. |
| Operating Temp | 0 °C to 90 °C - qualified for commercial/industrial ambient environments without extended thermal derating. |
| Ethernet | Dual 10/100/1000 EMAC with integrated 2-port switch and IEEE 1588v2 PTP - supports time-synchronized motion control across distributed I/O nodes. |
Pinout & Package
AM4377BZDND100 uses a 491-ball NFBGA package (ZDN suffix), 17 mm × 17 mm body size with 0.65 mm ball pitch and via-channel array technology. Pin functions are defined per TI SPRS851E Section 4.1–4.3, with critical signals including USB0/USB1 PHY pins, dss_* display interface, mcasp0_* audio ports, spi0–spi4 buses, and dedicated PRU-ICSS MII/MDIO/Ethernet pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XTALIN / XTALOUT | Oscillator Input/Output | Accepts 19.2/24/25/26 MHz crystal; drives internal PLLs for MPU, DDR, USB, and peripheral clocks. |
| VDD_MPU / VDD_CORE | Power Supply Rails | Separate 1.05 V (MPU) and 1.2 V (CORE) domains enable dynamic voltage scaling and independent power gating. |
| USB0_DRVVBUS / USB1_DRVVBUS | USB VBUS Control | GPIO-driven outputs to enable external VBUS switches - required for dual-role USB host/device operation. |
| dss_data[0:15] / dss_pclk / dss_hsync / dss_vsync | Display Subsystem Interface | Parallel RGB/YUV interface supporting up to 2048×2048 resolution - directly drives LCD panels without external TCON. |
| mcasp0_axr0 / mcasp0_fsx / mcasp0_aclkx | McASP Serial Audio Interface | Configurable TDM/I2S/SPDIF interface with 50 MHz clock support - connects to audio codecs or digital microphones. |
| spi0_cs0 / spi0_sclk / spi0_d0 / spi0_d1 | Quad-SPI Bus Signals | Supports XIP from serial NOR flash - eliminates boot ROM dependency and enables field firmware updates. |
Key Features
| Feature | Design Value |
|---|---|
| PRU-ICSS Industrial Protocol Offload | Executes EtherCAT slave, EnDat 2.2 position feedback, and PROFIBUS DP masters independently of ARM core - reduces CPU load by >40% in multi-axis servo systems. |
| Integrated Touch Screen Controller | ADC0 configured as 4-/5-/8-wire resistive TSC - enables direct connection to analog touch panels without external controller or calibration IC. |
| Dual Gigabit Ethernet with PTP | IEEE 1588v2 hardware timestamping on both MACs - achieves sub-100 ns time synchronization accuracy for coordinated motion control. |
| Crypto Acceleration Engine | AES-128/256, SHA-1/256, DES/3DES, RNG - accelerates secure boot, encrypted firmware updates, and TLS handshake in Linux-based HMI applications. |
| Flexible Memory Interfaces | GPMC with 16-bit ECC (BCH), QSPI XIP, and DDR3L support - allows mixed-memory BOMs: low-cost NAND + fast boot from NOR + high-bandwidth DDR. |
Applications
| Industrial HMI Panel | Motion Control Edge Node |
|---|---|
Use Scenario: Compact 7-inch touchscreen HMI for PLC-controlled packaging lines with local recipe storage and alarm logging. IC Role / Device Role / Timing Role: AM4377BZDND100 serves as main application processor running Linux Qt UI, driving RGB LCD via DSS, reading touch via ADC0, and communicating over EtherCAT to I/O modules. Use Value: Integrated PRU-ICSS handles EtherCAT slave timing deterministically while ARM runs UI - eliminates need for separate real-time co-processor and reduces BOM count by 2 ICs. |
Use Scenario: Distributed servo drive node controlling 3-axis gantry with synchronized position, velocity, and torque loops. IC Role / Device Role / Timing Role: AM4377BZDND100 executes position loop in PRU-ICSS using eQEP feedback and eHRPWM outputs, while ARM manages CANopen configuration and web diagnostics. Use Value: Dual eQEP modules capture encoder A/B/Z signals with 32-bit resolution; six eHRPWM channels generate complementary gate drive with dead-time insertion - enables single-chip multi-axis control. |
| Barcode Scanner Terminal | Portable Test Instrument |
Use Scenario: Handheld UHF RFID + 2D barcode scanner with battery-powered operation and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: AM4377BZDND100 processes image data from parallel camera interface, decodes barcodes via software libraries, and manages dual USB (host for imager, device for PC tethering). Use Value: 12-bit ADC1 monitors battery voltage and temperature; quad McASP interfaces audio alerts and headset mic; low-power idle states extend runtime beyond 8 hours. |
Use Scenario: Portable oscilloscope with 2-channel 1 MS/s analog front-end, FFT analysis, and Wi-Fi reporting. IC Role / Device Role / Timing Role: AM4377BZDND100 acquires samples via ADC0/ADC1 at 867 kSPS, performs real-time FFT in ARM NEON, renders waveforms on LCD, and streams results over USB CDC. Use Value: On-chip 256KB L2 cache and NEON coprocessor accelerate signal processing; dual USB ports enable simultaneous device-mode debug and host-mode data export. |
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 |
|---|---|---|---|
| AM4376BZDND100 | 800 MHz Cortex-A9, -40°C to +105°C temp grade, same PRU-ICSS and peripherals. | Required for extended temperature environments (e.g., outdoor enclosures) and higher computational throughput in vision analytics. | Select when thermal margin or MIPS demand exceeds AM4377BZDND100's 300 MHz capability. |
| AM4379BZDND100 | 1000 MHz Cortex-A9, -40°C to +90°C, identical feature set and pinout. | Suitable for Linux-based HMIs requiring faster UI rendering, video playback, or multi-threaded protocol stacks. | Choose for performance-critical applications where 1000 MHz enables reduced task scheduling jitter and higher frame rates. |
Compared with AM4377BZDND100, AM4376BZDND100 offers higher clock speed and extended temperature range but requires thermal redesign; AM4379BZDND100 delivers maximum compute headroom within the same package and industrial qualification envelope - both retain full software compatibility and PRU-ICSS functionality.
Availability
AM4377BZDND100 is available at Aetrix Electronics and suitable for industrial HMIs, motion control edge nodes, portable test instruments, and barcode scanning terminals requiring stable component supply across multi-year production cycles.
Supply support for AM4377BZDND100 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 90 years of innovation in industrial, automotive, and communications markets.
The AM437x Sitara™ processor family targets industrial automation and human-machine interface applications, integrating ARM Cortex-A9 cores with PRU-ICSS for deterministic real-time control and graphics acceleration for rich UIs - designed to replace legacy microcontrollers and FPGA-based solutions.
FAQ
What is the maximum operating frequency of the AM4377BZDND100?
The AM4377BZDND100 is factory-specified at 300 MHz for its ARM Cortex-A9 processor core. This fixed-frequency grade prioritizes thermal efficiency and deterministic real-time behavior over peak performance, making it ideal for industrial control applications where consistent latency matters more than raw MIPS. The AM4377BZDND100 does not support dynamic frequency scaling beyond this rated speed.
Does the AM4377BZDND100 support secure boot functionality?
No, the AM4377BZDND100 does not support secure boot. Secure boot is only available on AM437x High-Security (HS) devices, which are designated with an "HS" suffix and include additional cryptographic key storage and authentication logic. The AM4377BZDND100 lacks the fuse farm and secure control module required for authenticated boot, though it retains hardware crypto accelerators (AES, SHA, RNG) for runtime encryption.
Which ADC inputs are accessible when ADC0 is configured as a touch-screen controller on the AM4377BZDND100?
When ADC0 is configured as a 4-/5-/8-wire resistive touch-screen controller on the AM4377BZDND100, only four analog input channels remain available for general-purpose use: AIN0 through AIN3. The remaining four inputs (AIN4–AIN7) are internally routed to the TSC's X/Y plate drivers and cannot be used simultaneously for standard ADC conversions - this limitation is explicitly documented in the AM437x Technical Reference Manual Section 12.3.2.
Can the AM4377BZDND100 run Linux operating system?
Yes, the AM4377BZDND100 fully supports Linux operating systems. Texas Instruments provides official Linux SDKs (Processor SDK Linux) with board support packages, kernel drivers, and Yocto Project integration for the AM437x family. The AM4377BZDND100's 300 MHz Cortex-A9 core, 256KB L2 cache, and DDR3 interface meet minimum requirements for lightweight Linux distributions such as Ångström or Debian with real-time patches.
What industrial communication protocols are supported by the PRU-ICSS in the AM4377BZDND100?
The PRU-ICSS in the AM4377BZDND100 supports EtherCAT, EnDat 2.2, PROFIBUS, PROFINET, EtherNet/IP, and Sercos III - all implemented in firmware running on the dual 200-MHz PRU cores. Unlike software-only protocol stacks, these run independently of the ARM core, enabling sub-microsecond cycle times and deterministic jitter under 50 ns, as verified in TI's AM437x PRU-ICSS Industrial Communications Software Development Kit.
AM4377BZDND100 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:
- 1.0GHz
- Co-Processors/DSP:
- Multimedia; NEON™ SIMD
- RAM Controllers:
- LPDDR2, DDR3, DDR3L
- Graphics Acceleration:
- No
- 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:
- -40°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
AM4377BZDND100 FAQ
1.How can I place an order for AM4377BZDND100 through Aetrix?
Please submit a Request for Quotation (RFQ) for AM4377BZDND100 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 AM4377BZDND100 reliable?
The price and inventory of AM4377BZDND100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AM4377BZDND100 is usually 5 days.
3.What payment methods are accepted for AM4377BZDND100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AM4377BZDND100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AM4377BZDND100?
AM4377BZDND100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AM4377BZDND100 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 AM4377BZDND100?
For technical support, including AM4377BZDND100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AM4377BZDND100 requirements.
6.How does Aetrix verify that AM4377BZDND100 is sourced from the original manufacturer or authorized distributors?
All AM4377BZDND100 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 AM4377BZDND100 meets industry standards.
7.What is the process for return or replacement of AM4377BZDND100?
All AM4377BZDND100 units undergo pre-shipment inspection (PSI). If there is an issue with AM4377BZDND100, 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 AM4377BZDND100 part is unused and in its original packaging.
Return procedure for AM4377BZDND100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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