Texas Instruments AM4372BZDNA80

Overview

AM4372BZDNA80 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, PRU-ICSS for industrial protocols (EtherCAT®, PROFINET®, EnDat 2.2), and PowerVR SGX530 3D graphics engine. It supports LPDDR2/DDR3/DDR3L memory, dual USB 2.0 with PHY, dual Gigabit Ethernet with IEEE 1588v2 PTP, and is used in industrial HMIs, programmable logic controllers, and motor control gateways.

For engineers reviewing the AM4372BZDNA80 datasheet, AM4372BZDNA80 pinout, AM4372BZDNA80 application, or AM4372BZDNA80 equivalent, this page delivers verified technical context, validated pin functions, confirmed package mapping to 491-ball NFBGA (ZDN), real-world application mappings, and two rigorously cross-checked alternative parts - all grounded in TI's SPRS851E production data sheet and device comparison tables.

Technical Context

The AM4372BZDNA80 implements a dual-core-capable ARM Cortex-A9 subsystem with 32KB L1 I/D cache and 256KB configurable L2 cache/L3 RAM, paired with a dedicated PRU-ICSS subsystem containing two 200-MHz programmable real-time units, each with 12KB instruction RAM and 8KB data RAM (parity-protected). Its interconnect architecture separates MPU, graphics, PRU-ICSS, and peripheral domains via L3/L4 buses to ensure deterministic latency for industrial communication tasks.

It integrates dual independent 12-bit SAR ADCs (ADC0/ADC1) with 8-channel multiplexing and 867 kSPS throughput; ADC0 supports 4-/5-/8-wire resistive touch screen controller (TSC) mode. The device features dual Gigabit Ethernet MACs with integrated switch, MII/RMII/RGMII/MDIO interfaces, and hardware-accelerated IEEE 1588v2 timestamping - enabling precise time-synchronized motion control and distributed I/O systems.

Key Specifications

Pinout & Package

AM4372BZDNA80 is housed in a 491-ball NFBGA (ZDN) package measuring 17.0 mm × 17.0 mm with 0.65-mm ball pitch. Via-channel array technology enables simplified layer stackup and cost-effective routing. Pin functions are validated per TI's SPRS851E Table 4-1 through Table 4-3 (ZDN ball map), covering all 491 terminals including power, ground, DDR interface, GPMC, PRU-ICSS I/O, ADC inputs, and peripheral signals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AM4372BZDNA80, AM4376BZDNA80 offers identical packaging with enhanced PRU-ICSS capability and higher CPU clock, while AM4379BZDNA10 trades graphics for higher clock speed, broader temperature tolerance, and full industrial protocol support - making it optimal for headless, high-reliability edge nodes.

Availability

AM4372BZDNA80 is available at Aetrix Electronics and suitable for industrial automation, embedded HMI, and motor control gateway designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized channels.

Supply support for AM4372BZDNA80 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 leader specializing in analog, embedded processing, and connectivity technologies, with decades of experience in industrial, automotive, and enterprise markets.

The AM437x family - including AM4372BZDNA80 - was engineered for industrial edge devices requiring real-time determinism, rich graphics, and protocol flexibility, combining ARM application processing with PRU-ICSS co-processors for fieldbus and motion control.

FAQ

What is the maximum operating frequency of the AM4372BZDNA80?

The AM4372BZDNA80 operates at a maximum CPU frequency of 800 MHz, delivering 2000 MIPS performance. This is confirmed in TI's SPRS851E Device Comparison Table 3-1, which specifies "800 MHz" under the AM4372 row for Frequency. The part number suffix "A80" explicitly denotes the 800-MHz speed grade, distinguishing it from the 600-MHz AM4372BZDNA60 variant.

Does the AM4372BZDNA80 support IEEE 1588 Precision Time Protocol?

Yes, the AM4372BZDNA80 supports IEEE 1588v2 Precision Time Protocol (PTP) in hardware via its dual Ethernet MACs. As stated in Section 1.1 Features and confirmed in the Functional Block Diagram, both EMACs include hardware timestamping logic for sub-microsecond synchronization - essential for time-sensitive industrial networks like EtherCAT and distributed motion control systems.

Can the AM4372BZDNA80 run a real-time operating system (RTOS)?

Yes, the AM4372BZDNA80 supports RTOS deployment, particularly through its PRU-ICSS subsystem. While the ARM Cortex-A9 core typically runs Linux, the dual 200-MHz PRU cores execute deterministic, low-latency tasks (e.g., EtherCAT slave stack, PWM generation, encoder counting) independently - enabling hybrid RTOS+Linux architectures without hardware abstraction layers.

What package type and ball count does the AM4372BZDNA80 use?

The AM4372BZDNA80 uses a 491-ball NFBGA package with ZDN suffix, measuring 17.0 mm × 17.0 mm and 0.65-mm ball pitch. This is documented in the Device Information table (Section 1.3) and Mechanical Packaging section of SPRS851E. The "ZDN" in the part number directly maps to this standardized package variant across the AM437x family.

Is the AM4372BZDNA80 pin-compatible with other AM437x processors?

Yes, all AM437x processors with ZDN package - including AM4372BZDNA80, AM4376BZDNA80, AM4377BZDNA30, AM4378BZDNA80, and AM4379BZDNA10 - share identical 491-ball NFBGA pinout and mechanical footprint. TI confirms this in Section 1.2 Applications and Table 3-1, enabling drop-in upgrades within the same package variant based on performance or feature requirements.