Texas Instruments AM4372BZDN80

Overview

AM4372BZDN80 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 real-time unit subsystem (PRU-ICSS) supporting EtherCAT®, PROFINET®, and EnDat 2.2 for industrial motion control. It features 32KB L1 instruction/data cache, 256KB L2 cache, LPDDR2/DDR3/DDR3L memory support, and a PowerVR SGX530 graphics engine-designed for embedded industrial HMIs and programmable logic controllers.

For engineers reviewing the AM4372BZDN80 datasheet, AM4372BZDN80 pinout, AM4372BZDN80 application, or AM4372BZDN80 equivalent, this page delivers verified technical context on its PRU-ICSS real-time co-processing capability, dual-CAN/USB/Ethernet connectivity, 491-ball NFBGA package routing constraints, and validated alternatives for industrial automation SoC migration paths.

Technical Context

The AM4372BZDN80 implements a dual-core-capable ARM Cortex-A9 CPU subsystem with NEON SIMD and VFPv3 coprocessors, paired with a dedicated PRU-ICSS comprising two 200-MHz 32-bit RISC cores-each with 12KB instruction RAM and 8KB data RAM-for deterministic protocol offload. Its memory architecture includes 32KB L1 I/D cache, 256KB configurable L2 cache/L3 RAM, 64KB on-chip RAM, and 256KB OCMC RAM accessible by all masters.

Peripherals include two 10/100/1000-Mbps Ethernet MACs with integrated switch and IEEE 1588v2 PTP support, dual USB 2.0 dual-role ports with PHY, two CAN 2.0B interfaces, six UARTs, five McSPIs, three I²C ports, QSPI with XIP support, and dual 12-bit SAR ADCs-one configurable as an 8-wire resistive touch-screen controller. Clocking relies on five ADPLLs and integrated oscillators (19.2/24/25/26 MHz).

Key Specifications

Pinout & Package

AM4372BZDN80 uses a 491-ball NFBGA (ZDN) package with 0.65-mm ball pitch and via-channel array technology optimized for low-cost PCB routing. Pin functions are multiplexed across six GPIO banks (32 pins each), with dedicated balls for DDR3/LPDDR2 interface, PRU-ICSS Ethernet MII/RMII, USB PHY, and analog inputs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AM4372BZDN80, AM4376BZDN80 delivers 25% higher CPU throughput and broader PRU-ICSS protocol coverage, while AM4379BZDN10 adds extended temperature operation and hardware-enforced secure boot-making both viable upgrades depending on performance, environmental, or security requirements.

Availability

AM4372BZDN80 is available at Aetrix Electronics and suitable for industrial automation, portable medical devices, and test & measurement equipment requiring stable component supply across multi-year production cycles.

Supply support for AM4372BZDN80 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 specializing in analog and embedded processing technologies, with leadership in industrial, automotive, and communications markets.

The AM437x Sitara™ processor family targets industrial automation and human-machine interface applications, combining ARM Cortex-A9 performance with PRU-ICSS real-time co-processing and graphics acceleration for unified embedded control and visualization.

FAQ

What is the maximum operating frequency of the AM4372BZDN80 processor core?

The AM4372BZDN80 integrates an ARM Cortex-A9 processor core rated for operation at up to 800 MHz. This frequency is specified under recommended operating conditions (VDD_MPU = 1.05 V, junction temperature ≤ 90°C) and enables execution of Linux-based real-time applications with deterministic latency for industrial control loops. The AM4372BZDN80 does not support dynamic voltage and frequency scaling beyond this fixed 800-MHz rating.

Does the AM4372BZDN80 support secure boot functionality?

No, the AM4372BZDN80 does not support secure boot. Secure boot is exclusively available on AM437x High-Security (HS) devices such as AM4379BZDN10, which include a Secure Control Module (SCM) and factory-programmable fuses for cryptographic key storage. The AM4372BZDN80 lacks these hardware security blocks and cannot perform authenticated firmware loading.

How many Ethernet ports does the AM4372BZDN80 support, and what are their capabilities?

The AM4372BZDN80 supports two 10/100/1000-Mbps Ethernet MACs with integrated switch fabric. Each MAC supports MII, RMII, and RGMII physical layer interfaces and includes IEEE 1588v2 Precision Time Protocol hardware timestamping. The switch allows VLAN tagging, priority queuing, and port mirroring-enabling dual-port industrial Ethernet applications like EtherCAT master and PROFINET device simultaneously.

Can the AM4372BZDN80's ADC modules be used for touch-screen control?

Yes, ADC0 in the AM4372BZDN80 can be configured as a 4-, 5-, or 8-wire resistive touch-screen controller (TSC). It supports automatic coordinate acquisition, pen-down detection, and calibration routines via dedicated TSC registers. ADC1 remains available for general-purpose analog sensing, allowing simultaneous touch input and sensor monitoring without external components.

What package type and ball count does the AM4372BZDN80 use?

The AM4372BZDN80 uses a 491-ball NFBGA package (ZDN suffix) with 17.0 mm × 17.0 mm body size and 0.65-mm ball pitch. This package employs via-channel array technology to simplify PCB routing in high-density industrial designs, and it is mechanically and thermally compatible with other AM437x ZDN variants including AM4376BZDN80 and AM4379BZDN10.