Texas Instruments AM4376BZDNA80

Overview

AM4376BZDNA80 from Texas Instruments is a high-performance ARM Cortex-A9 microprocessor operating at 800 MHz, integrating PowerVR SGX530 3D graphics, dual 12-bit SAR ADCs (867 kSPS), six eHRPWM modules, and dual industrial Ethernet MACs with IEEE 1588v2 support - deployed in programmable logic controllers and HMI terminals requiring deterministic real-time I/O and rich GUI rendering.

For engineers reviewing the AM4376BZDNA80 datasheet, AM4376BZDNA80 pinout, AM4376BZDNA80 application, or AM4376BZDNA80 equivalent, this page delivers verified SoC-level specifications, PRU-ICSS protocol support (EtherCAT/PROFINET), DDR3/LPDDR2 memory interface timing, and validated alternative processors for industrial automation upgrades.

Technical Context

The AM4376BZDNA80 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 supporting concurrent EtherCAT and EnDat 2.2 on separate MII interfaces. Its integrated SGX530 GPU delivers 20M triangles/sec with OGL-ES 2.0 API compliance.

It features dual 12-bit SAR ADCs (ADC0 with 4-/5-/8-wire TSC capability; ADC1 for motor control feedback), six eHRPWM modules with dual-edge symmetric/asymmetric output modes, and a 491-ball NFBGA (ZDN) package with 0.65-mm pitch and via-channel routing optimized for industrial PCB cost targets.

Key Specifications

Pinout & Package

AM4376BZDNA80 uses a 491-ball NFBGA (ZDN) package with 0.65-mm ball pitch and via-channel array technology enabling low-cost 4-layer PCB routing. Ball mapping follows TI's standardized ZDN layout with dedicated power domains (VDD_MPU, VDD_CORE, VDDS), differential clock inputs (XTALIN/XTALOUT), and function-multiplexed I/O banks.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AM4379BZDNA100, AM4376BZDNA80 trades 200 MHz CPU headroom and extended temp rating for lower power and cost in thermally managed systems; versus AM6442BZDNA80, it retains deterministic PRU-ICSS real-time I/O but lacks AI acceleration and modern security features.

Availability

AM4376BZDNA80 is available at Aetrix Electronics and suitable for industrial automation, HMI terminals, and embedded vision systems requiring stable component supply across multi-year production cycles.

Supply support for AM4376BZDNA80 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, delivering analog and embedded processing solutions for industrial, automotive, and communications markets since 1930.

The AM437x Sitara processor family was designed specifically for industrial automation and human-machine interface applications, combining real-time PRU-ICSS offload with ARM application processing and graphics acceleration in a single die.

FAQ

What is the maximum operating frequency of the AM4376BZDNA80 processor core?

The AM4376BZDNA80 features an ARM Cortex-A9 processor core rated for operation at up to 800 MHz. This frequency is guaranteed across the full industrial temperature range (−40°C to 105°C) under specified voltage and cooling conditions. The AM4376BZDNA80 does not support dynamic frequency scaling beyond this rated speed, and operation above 800 MHz violates TI's production specifications. All timing-critical peripherals - including DDR3 interface and PRU-ICSS - are validated at this clock rate.

Does the AM4376BZDNA80 include hardware support for industrial Ethernet protocols like EtherCAT?

Yes, the AM4376BZDNA80 integrates a Programmable Real-Time Unit Subsystem and Industrial Communication Subsystem (PRU-ICSS) that natively supports EtherCAT, PROFINET, EtherNet/IP, and EnDat 2.2. Two independent MII interfaces within the PRU-ICSS allow concurrent EtherCAT slave and EnDat master operation without ARM core intervention. TI provides certified EtherCAT slave stack binaries and PRU firmware for AM4376BZDNA80 in its Processor SDK.

Can the AM4376BZDNA80 directly interface with a resistive touch screen?

Yes, the AM4376BZDNA80 includes a dedicated touch screen controller (TSC) function within ADC0. It supports 4-, 5-, and 8-wire resistive touch panels with built-in pen-down detection, coordinate conversion, and debounce filtering - all implemented in hardware without CPU involvement. The TSC operates independently of ADC1 and shares only the analog input multiplexer, enabling simultaneous touch and motor current sensing.

What memory types and configurations are supported by the AM4376BZDNA80?

The AM4376BZDNA80 supports 32-bit LPDDR2 (266 MHz), DDR3/DDR3L (400 MHz), NAND/NOR flash, SRAM, and QSPI NOR via its External Memory Interfaces. It provides 2 GB of addressable space across DDR and GPMC, with up to 16-bit ECC for NAND/NOR. The device boots from QSPI, NAND, or SD/MMC, and includes 256 KB of on-chip L2 cache configurable as L3 RAM plus 256 KB of OCMC RAM for low-latency code execution.

Is the AM4376BZDNA80 pin-compatible with other AM437x family members?

Yes, the AM4376BZDNA80 shares identical 491-ball NFBGA (ZDN) packaging, pinout, and power sequencing requirements with AM4372, AM4377, AM4378, and AM4379 variants. All AM437x ZDN devices use the same mechanical footprint, thermal pad configuration, and signal ball assignments - enabling hardware reuse across performance grades. However, software initialization must account for differences in CPU frequency, temperature grade, and optional features like graphics or PRU-ICSS protocol subsets.