Texas Instruments AM4376BZDN80

Overview

AM4376BZDN80 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, and a programmable PRU-ICSS subsystem for industrial protocols including EtherCAT and PROFINET. It supports LPDDR2/DDR3/DDR3L memory, dual USB 2.0 ports with PHY, and dual 1-Gbps Ethernet MACs with IEEE 1588v2 support - deployed in industrial HMIs and motor control gateways.

For engineers reviewing the AM4376BZDN80 datasheet, AM4376BZDN80 pinout, AM4376BZDN80 application, or AM4376BZDN80 equivalent, key selection criteria include its 800-MHz Cortex-A9 core, PRU-ICSS real-time co-processing capability, dual 12-bit ADCs with touch-screen controller mode, 491-ball NFBGA package (17 mm × 17 mm, 0.65-mm pitch), and industrial temperature range (–40°C to +105°C).

Technical Context

The AM4376BZDN80 implements a dual-core-capable ARM Cortex-A9 subsystem with 32KB L1 instruction/data cache and 256KB configurable L2 cache/L3 RAM, paired with PowerVR SGX530 graphics delivering up to 20M triangles/sec. Its PRU-ICSS comprises two independent 200-MHz RISC cores (PRU-ICSS0 and PRU-ICSS1) with dedicated instruction/data RAM (4KB/8KB respectively) and shared RAM (12KB on PRU-ICSS1), enabling deterministic real-time I/O handling without CPU intervention.

Memory subsystem includes 32-bit EMIF supporting DDR3-800 data rates, GPMC with BCH-based ECC for NAND/NOR/SRAM, and integrated ELM for error location. Clocking uses five ADPLLs to generate MPU, DDR, USB, peripheral, and display clocks; power management supports DVFS and deep-sleep modes with RTC domain isolation.

Key Specifications

Pinout & Package

NFBGA-491 package (ZDN suffix), 17 mm × 17 mm body size, 0.65-mm ball pitch, via channel array architecture for simplified PCB routing and thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AM4376BZDN80, AM4379BZDN10 offers higher compute headroom at increased power cost, while AM4372BZDN60 provides identical feature set at reduced frequency and thermal load - enabling scalable design across performance tiers without architectural change.

Availability

AM4376BZDN80 is available at Aetrix Electronics and suitable for industrial HMIs, PLC edge nodes, portable data terminals, and motor drive gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AM4376BZDN80 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 solutions for industrial, automotive, and consumer markets.

The AM437x family - including AM4376BZDN80 - was engineered for industrial automation and human-machine interface applications, combining ARM Cortex-A9 performance with PRU-ICSS real-time co-processing and integrated analog peripherals.

FAQ

What is the maximum operating frequency of the AM4376BZDN80 processor core?

The AM4376BZDN80 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 AM4376BZDN80 does not support overclocking beyond this specification, and system-level timing closure must be verified against TI's recommended operating conditions in SPRS851E.

Does the AM4376BZDN80 include hardware support for industrial Ethernet protocols?

Yes, the AM4376BZDN80 integrates a Programmable Real-Time Unit Subsystem and Industrial Communication Subsystem (PRU-ICSS) that natively supports EtherCAT, PROFINET, EtherNet/IP, and EnDat 2.2. Each PRU-ICSS instance contains dedicated RAM, timers, and I/O controllers, enabling deterministic protocol stack execution with sub-microsecond jitter - independent of the ARM Cortex-A9 core.

Can the AM4376BZDN80 operate as a resistive touch-screen controller?

Yes, the AM4376BZDN80's ADC0 module can be configured as a 4-, 5-, or 8-wire resistive touch-screen controller (TSC). It includes built-in coordinate calculation, debounce filtering, and calibration logic - eliminating the need for an external TSC IC in HMI designs. ADC1 remains available for general-purpose analog sensing concurrently.

What memory types and interfaces does the AM4376BZDN80 support?

The AM4376BZDN80 supports 32-bit LPDDR2, DDR3, and DDR3L memory via its EMIF (up to DDR-800 data rate), plus asynchronous general-purpose memory through the GPMC - including NAND, NOR, and SRAM with up to 16-bit ECC. It also includes QSPI for execute-in-place (XIP) from serial NOR flash and three MMC/SD/SDIO ports supporting 1-/4-/8-bit modes.

Is the AM4376BZDN80 pin-compatible with other AM437x variants?

Yes, all AM437x processors - including AM4372, AM4376, AM4377, AM4378, and AM4379 - share identical 491-ball NFBGA (ZDN) packaging and pinout. This allows direct PCB reuse across performance grades (600–1000 MHz) and feature sets (e.g., graphics, PRU-ICSS protocol support), simplifying hardware scalability and migration paths.