Texas Instruments AM4376BZDND80

Overview

AM4376BZDND80 from Texas Instruments is a high-performance Sitara™ ARM® Cortex®-A9 microprocessor operating at 800 MHz, integrating dual 12-bit SAR ADCs, six eHRPWM modules, three eQEP modules, PRU-ICSS for industrial Ethernet protocols (EtherCAT, PROFINET), and PowerVR SGX530 3D graphics engine. It supports LPDDR2/DDR3/DDR3L memory, dual USB 2.0 ports with PHY, and dual gigabit Ethernet with IEEE 1588v2 PTP - deployed in industrial HMIs, motor control gateways, and programmable logic controllers.

For engineers reviewing the AM4376BZDND80 datasheet, AM4376BZDND80 pinout, AM4376BZDND80 application, or AM4376BZDND80 equivalent, key selection criteria include its 800-MHz Cortex-A9 core, PRU-ICSS real-time subsystem, 491-ball NFBGA (ZDN) package, -40°C to 105°C industrial temperature grade, and support for deterministic industrial communication stacks without external co-processors.

Technical Context

The AM4376BZDND80 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 containing two 200-MHz programmable real-time units for offloading EtherCAT frame processing and EnDat position feedback decoding. Its memory subsystem includes 32-bit DDR3/DDR3L interfaces running at 400 MHz (800 MT/s) and GPMC supporting NAND/NOR/SRAM with up to 16-bit ECC.

Power management uses five ADPLLs to generate independent clocks for MPU, DDR, USB, peripherals, and graphics domains, while dynamic voltage-frequency scaling (DVFS) enables operation across performance points from 300 MHz to 800 MHz. The device integrates dual 12-bit SAR ADCs (867 kSPS), one configurable as a 4-/5-/8-wire resistive touch screen controller, and hardware crypto accelerators (AES, SHA, RNG) - though secure boot is restricted to AM437xHS variants.

Key Specifications

Pinout & Package

AM4376BZDND80 uses a 491-pin NFBGA (ZDN) package with 0.65-mm ball pitch and via-channel array technology enabling low-cost PCB routing. Pin functions are organized across 25 rows (A–AE) and 9 columns (1–9), including dedicated balls for DDR3 interface (VDD_DDR, DQ[31:0], DQS[3:0]), PRU-ICSS Ethernet (MII0_RXD[3:0], MII0_TXD[3:0]), and industrial I/O (eHRPWM_A0–A5, eQEP0_A/B, ADC0_IN0–7).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ARM-based industrial processor applications.

Compared with AM4379BZDND100, AM4376BZDND80 offers optimal balance of real-time capability and thermal margin for industrial gateways; versus AM4372BZDND600, it delivers 33% higher throughput for concurrent GUI rendering and protocol translation without increasing PCB area or cooling requirements.

Availability

AM4376BZDND80 is available at Aetrix Electronics and suitable for industrial automation, motor control edge nodes, and human-machine interface applications requiring stable component supply across extended product lifecycles.

Supply support for AM4376BZDND80 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 processor, and connectivity products for industrial, automotive, and consumer markets.

The AM437x Sitara™ processor family - including AM4376BZDND80 - was engineered to deliver deterministic real-time performance alongside rich graphical user interfaces for industrial IoT edge devices, combining ARM application processing with PRU-ICSS for protocol offload.

FAQ

What is the maximum operating frequency of the AM4376BZDND80 processor core?

The AM4376BZDND80 features an ARM Cortex-A9 processor core rated for operation up to 800 MHz. This frequency is validated across the full industrial temperature range (-40°C to +105°C) and supports Dynamic Voltage and Frequency Scaling (DVFS) to reduce power consumption during low-load conditions. The AM4376BZDND80 achieves 2000 MIPS at this speed, enabling real-time Linux execution while maintaining headroom for PRU-ICSS offloaded tasks.

Does the AM4376BZDND80 support secure boot functionality?

No, the AM4376BZDND80 does not support secure boot. Secure boot is exclusively available on AM437x High-Security (HS) variants, which include additional hardware security modules such as the Secure Control Module (SCM) and encrypted eFuses. The AM4376BZDND80 lacks these security features and is intended for applications where cryptographic acceleration (AES, SHA, RNG) is sufficient without full chain-of-trust boot enforcement.

How many independent Ethernet interfaces does the AM4376BZDND80 provide?

The AM4376BZDND80 integrates two fully independent 10/100/1000 Mbps Ethernet MACs with an on-chip 2-port switch and IEEE 1588v2 Precision Time Protocol hardware timestamping. Each MAC supports MII, RMII, and RGMII physical layer interfaces and can operate concurrently - for example, one port handling EtherCAT real-time traffic via PRU-ICSS while the other serves standard TCP/IP communications on the ARM subsystem.

Can the AM4376BZDND80's ADCs be used simultaneously for touch screen and motor current sensing?

Yes, the AM4376BZDND80 contains two independent 12-bit SAR ADCs (ADC0 and ADC1). ADC0 can be configured as a 4-/5-/8-wire resistive touch screen controller for HMI applications, while ADC1 remains fully available for analog signal acquisition - such as motor phase current sensing in closed-loop control systems. Both ADCs operate at up to 867 kSPS with separate input multiplexers, enabling true concurrent sampling without resource contention.

What package type and ball count does the AM4376BZDND80 use?

The AM4376BZDND80 uses a 491-ball NFBGA package with ZDN suffix, measuring 17.0 mm × 17.0 mm with 0.65-mm ball pitch. This package employs via-channel array technology to simplify PCB routing and reduce layer count in industrial-grade designs. It is pin-compatible with other AM437x devices in the ZDN family (e.g., AM4372, AM4377, AM4378, AM4379), allowing hardware reuse across performance grades.