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Texas Instruments AM4377BZDND80
- Part No.:
- AM4377BZDND80
- Manufacturer:
- Texas Instruments
- Category:
- Microprocessors
- Package:
- 491-LFBGA
- Datasheet:
-
AM4377BZDND80.pdf
- Description:
- IC MPU SITARA 800MHZ 491NFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,982
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Product details
Overview
AM4377BZDND80 from Texas Instruments is a high-performance Sitara™ ARM® Cortex®-A9 microprocessor operating at 800 MHz, integrating dual 12-bit SAR ADCs (867 kSPS), six eHRPWM modules, three eQEP modules, and a programmable PRU-ICSS subsystem supporting EtherCAT®, PROFINET®, and EnDat 2.2 for industrial real-time control. It features 256KB L2 cache, 32KB L1 instruction/data cache, and 256KB on-chip OCMC RAM, targeting embedded industrial HMI and motor control applications.
For engineers reviewing the AM4377BZDND80 datasheet, AM4377BZDND80 pinout, AM4377BZDND80 application, or AM4377BZDND80 equivalent, key selection considerations include its 491-ball NFBGA (ZDN) package, 800-MHz Cortex-A9 core with NEON/VFPv3, dual-CAN, dual USB 2.0 with PHY, dual Gigabit Ethernet with IEEE 1588v2 support, and PRU-ICSS-based deterministic protocol offload - all validated for operation from –40°C to 105°C.
Technical Context
The AM4377BZDND80 implements a dual-core-capable ARM Cortex-A9 processor with 32KB L1 I/D cache and configurable 256KB L2 cache (or L3 RAM), paired with PowerVR SGX530 graphics delivering up to 20M triangles/sec. Its PRU-ICSS subsystem contains two independent 200-MHz 32-bit RISC cores with dedicated instruction/data RAM (12KB/8KB per ICSS), enabling parallel execution of industrial protocols without CPU intervention.
It integrates dual 12-bit SAR ADCs (ADC0/ADC1) with 8-channel multiplexing and 867 kSPS aggregate sampling rate; ADC0 supports 4-/5-/8-wire resistive touch screen controller (TSC) mode. Memory subsystem includes 32-bit LPDDR2/DDR3/DDR3L interfaces (400-MHz clock, DDR-800 data rate) and GPMC supporting NAND/NOR/SRAM with up to 16-bit ECC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-A9 @ 800 MHz - delivers 2000 MIPS for real-time Linux-based HMI and control tasks |
| L1 Cache | 32KB instruction + 32KB data - reduces memory latency for deterministic interrupt response |
| L2 Cache / L3 RAM | 256KB configurable as L2 cache or L3 RAM - enables low-latency shared memory access across CPU and PRUs |
| ADC Performance | Dual 12-bit SAR @ 867 kSPS total - supports simultaneous motor current sensing (ADC1) and touch interface (ADC0) |
| PRU-ICSS | Two 200-MHz PRU cores with 12KB IRAM/8KB DRAM each - executes EtherCAT slave stack independently of ARM core |
| Operating Temp | –40°C to +105°C - qualified for industrial automation environments requiring extended thermal range |
| Package | 491-pin NFBGA (ZDN), 17 mm × 17 mm, 0.65-mm pitch - supports cost-effective PCB routing via via-channel array |
Pinout & Package
AM4377BZDND80 is housed in a 491-ball NFBGA (ZDN) package with 0.65-mm ball pitch and via-channel array technology for simplified PCB layout. Pin functions are defined across 25 rows (A–AE) and 9 columns (1–9), including dedicated PRU-ICSS I/O, dual Ethernet MII/RGMII interfaces, dual USB 2.0 PHY pins, and 192 GPIOs multiplexed across six banks.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_MPU | MPU Core Power Supply | 1.05 V nominal supply for Cortex-A9 core - requires tight regulation and local decoupling for 800-MHz stability |
| XTALIN / XTALOUT | Crystal Oscillator Input/Output | Supports 19.2/24/25/26 MHz reference crystal - feeds ADPLLs for system clock generation |
| USB0_DRVVBUS / USB1_DRVVBUS | USB VBUS Drive Control | Direct GPIO-controlled VBUS enable for dual USB 2.0 dual-role ports - eliminates need for external VBUS switches |
| mcasp0_axr0 / mcasp0_axr1 | McASP Serial Data I/O | Asynchronous serial audio interface pins - support TDM/I2S/SPDIF up to 50 MHz clock for industrial audio feedback |
| eCAP0_in_PWM0_out | Enhanced Capture/PWM Terminal | Configurable as input capture (for encoder pulse timing) or PWM output (for gate drive control) - enables single-pin motor phase monitoring |
Key Features
| Feature | Design Value |
|---|---|
| PRU-ICSS Industrial Protocol Offload | Independent execution of EtherCAT, PROFINET, EnDat 2.2 - frees Cortex-A9 for HMI and application logic |
| Integrated Touch Screen Controller | ADC0 configured as 4-/5-/8-wire resistive TSC - enables direct connection to analog touch panels without external controller |
| Dual Gigabit Ethernet with IEEE 1588v2 | Hardware timestamping and PTP support in MAC/switch - achieves sub-microsecond time synchronization for distributed motion control |
| Crypto Acceleration Engine | AES/SHA/RNG/DES/3DES hardware acceleration - enables secure boot and encrypted communication without CPU overhead |
| Flexible Memory Interfaces | 32-bit DDR3/DDR3L/LPDDR2 + GPMC with BCH 4/8/16-bit ECC - supports reliable boot from NAND and high-bandwidth application code execution |
Applications
| Industrial HMI Panel | Programmable Logic Controller (PLC) |
|---|---|
|
Use Scenario: A DIN-rail mounted HMI panel with 7-inch LCD, capacitive/resistive touch overlay, and Ethernet connectivity for factory floor visualization. IC Role / Device Role / Timing Role: AM4377BZDND80 serves as main application processor running Linux Qt-based GUI, driving display via DSS, sampling touch via ADC0 TSC mode, and communicating over EtherNet/IP via PRU-ICSS. Use Value: Integrated PRU-ICSS eliminates need for external protocol co-processor; dual ADCs enable simultaneous touch and temperature monitoring; 800-MHz Cortex-A9 ensures smooth 60-Hz UI refresh. |
Use Scenario: Compact modular PLC with analog I/O expansion, motion control outputs, and real-time fieldbus connectivity. IC Role / Device Role / Timing Role: AM4377BZDND80 executes control logic in Linux PREEMPT_RT, acquires sensor data via ADC1, generates PWM waveforms via eHRPWM, and runs EtherCAT slave stack on PRU-ICSS. Use Value: Deterministic PRU execution guarantees <1 µs jitter for servo loop updates; dual CAN and dual Ethernet allow redundant fieldbus topology; -40°C to 105°C rating ensures reliability in control cabinet environments. |
| Barcode Scanner Terminal | Motor Drive Controller |
|
Use Scenario: Handheld or fixed-mount industrial barcode scanner with laser/imager module, battery power, and Wi-Fi/Ethernet backhaul. IC Role / Device Role / Timing Role: AM4377BZDND80 processes image data from camera interface, decodes barcodes using NEON-accelerated libraries, manages USB host for peripheral attachment, and handles network comms via EMAC. Use Value: Dual McASP supports audio feedback; QSPI enables XIP from serial NOR for fast boot; 64KB on-chip RAM allows critical ISR execution without DRAM access latency. |
Use Scenario: Integrated servo drive with position feedback (eQEP), current sensing (ADC), PWM generation (eHRPWM), and industrial Ethernet interface. IC Role / Device Role / Timing Role: AM4377BZDND80 performs FOC algorithm on Cortex-A9, reads encoder pulses via eQEP, samples phase currents via ADC1, generates gate signals via eHRPWM, and synchronizes motion commands via PRU-ICSS EtherCAT. Use Value: eQEP modules provide 32-bit quadrature counting at >10 MHz input rate; eHRPWM supports 150-ps resolution for precise dead-time insertion; PRU-ICSS handles 100-µs cycle EtherCAT frames independently. |
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 |
|---|---|---|---|
| AM4379BZDND100 | 1000-MHz Cortex-A9, same PRU-ICSS and peripheral set, higher thermal envelope (–40°C to 90°C vs. 105°C) | Higher compute throughput for complex HMI or multi-protocol gateway; less suitable for high-ambient industrial enclosures | Select AM4379BZDND100 when >2000 MIPS required and ambient temperature stays ≤90°C |
| AM4376BZDND80 | Identical 800-MHz CPU, PRU-ICSS, and peripherals but lacks SGX530 graphics engine and DSS | Lower BOM cost where display output is not needed; no GPU driver stack or display memory bandwidth requirements | Choose AM4376BZDND80 for headless industrial controllers or protocol gateways without GUI |
Compared with AM4379BZDND100, AM4377BZDND80 trades 250 MHz of peak CPU frequency for extended temperature qualification to 105°C - critical for fanless control cabinets. Against AM4376BZDND80, it adds SGX530 graphics and display subsystem, enabling rich HMI without external GPU, while retaining identical real-time control capability via PRU-ICSS.
Availability
AM4377BZDND80 is available at Aetrix Electronics and suitable for industrial automation, motor control, and embedded HMI applications requiring stable component supply, long-term lifecycle support, and guaranteed availability through 2030.
Supply support for AM4377BZDND80 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, designing and manufacturing analog, embedded processing, and wireless products for industrial, automotive, and consumer markets.
The AM437x Sitara™ processor family was engineered specifically for industrial communications and real-time control, combining ARM Cortex-A9 application processing with PRU-ICSS for deterministic protocol execution and integrated peripherals for HMI, motor control, and sensing.
FAQ
What is the maximum operating frequency of the AM4377BZDND80 processor core?
The AM4377BZDND80 features an ARM Cortex-A9 processor core rated for operation at 800 MHz. This frequency is validated across the full industrial temperature range (–40°C to 105°C) and supports 2000 MIPS of computational throughput. The device uses dynamic voltage and frequency scaling (DVFS) to maintain stability under varying thermal and load conditions, and this 800-MHz rating is specified in the official AM437x datasheet SPRS851E revision E.
Does the AM4377BZDND80 include hardware cryptographic acceleration?
Yes, the AM4377BZDND80 integrates a dedicated crypto hardware accelerator supporting AES, SHA, RNG, DES, and 3DES algorithms. This engine operates independently of the Cortex-A9 core, enabling secure boot, encrypted file systems, and TLS offload without impacting application performance. All AM437x devices - including AM4377BZDND80 - include this accelerator; however, secure boot functionality is only enabled on High-Security (HS) variants, which require specific fuse programming.
What package type and pin count does the AM4377BZDND80 use?
The AM4377BZDND80 is packaged in a 491-ball NFBGA (ZDN) with a 17.0 mm × 17.0 mm body size and 0.65-mm ball pitch. This package uses via-channel array technology to simplify PCB routing and reduce layer count. Pin assignments are documented in Tables 4-1 through 4-3 of the AM437x datasheet, covering 25 rows (A–AE) and 9 columns (1–9), with dedicated balls for DDR, GPMC, PRU-ICSS I/O, and high-speed interfaces like USB and Ethernet.
Can the AM4377BZDND80 support both EtherCAT and PROFINET simultaneously?
Yes, the AM4377BZDND80's dual PRU-ICSS subsystems (PRU-ICSS0 and PRU-ICSS1) can run EtherCAT and PROFINET concurrently - one protocol per subsystem. Each PRU-ICSS includes dedicated 12KB instruction RAM and 8KB data RAM, enabling independent real-time execution. The functional block diagram and device overview in SPRS851E confirm that "the PRU-ICSS enables EnDat and another industrial communication protocol in parallel," and Table 3-1 explicitly lists "Features including all Industrial protocols" for AM4377.
What is the ADC sampling rate and channel configuration for AM4377BZDND80?
The AM4377BZDND80 integrates two independent 12-bit successive approximation register (SAR) ADCs: ADC0 and ADC1. Together they achieve an aggregate sampling rate of 867 kSPS. ADC0 supports 4-/5-/8-wire resistive touch screen controller (TSC) mode and shares eight analog inputs via an internal 8:1 analog switch. ADC1 provides eight additional analog inputs and is commonly used for motor current or temperature sensing in closed-loop control applications.
AM4377BZDND80 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:
- 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
AM4377BZDND80 FAQ
1.How can I place an order for AM4377BZDND80 through Aetrix?
Please submit a Request for Quotation (RFQ) for AM4377BZDND80 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 AM4377BZDND80 reliable?
The price and inventory of AM4377BZDND80 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AM4377BZDND80 is usually 5 days.
3.What payment methods are accepted for AM4377BZDND80?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AM4377BZDND80 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AM4377BZDND80?
AM4377BZDND80 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AM4377BZDND80 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 AM4377BZDND80?
For technical support, including AM4377BZDND80 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AM4377BZDND80 requirements.
6.How does Aetrix verify that AM4377BZDND80 is sourced from the original manufacturer or authorized distributors?
All AM4377BZDND80 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 AM4377BZDND80 meets industry standards.
7.What is the process for return or replacement of AM4377BZDND80?
All AM4377BZDND80 units undergo pre-shipment inspection (PSI). If there is an issue with AM4377BZDND80, 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 AM4377BZDND80 part is unused and in its original packaging.
Return procedure for AM4377BZDND80:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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