Texas Instruments AM4379BZDNA80

Overview

AM4379BZDNA80 from Texas Instruments is a high-performance ARM Cortex-A9 microprocessor operating at 1000 MHz, featuring dual 12-bit SAR ADCs (867 kSPS), six eHRPWM modules, three eQEP modules, and integrated PRU-ICSS for industrial Ethernet protocols including EtherCAT and PROFINET. It supports LPDDR2/DDR3/DDR3L memory, dual USB 2.0 ports with PHY, and a PowerVR SGX530 3D graphics engine - deployed in industrial HMIs and programmable logic controllers.

For engineers reviewing the AM4379BZDNA80 datasheet, AM4379BZDNA80 pinout, AM4379BZDNA80 application, or AM4379BZDNA80 equivalent, key selection considerations include its 1000-MHz CPU frequency, PRU-ICSS real-time co-processing capability, 491-ball NFBGA package (17 mm × 17 mm, 0.65-mm pitch), dual CAN interfaces, and support for secure boot on HS variants.

Technical Context

The AM4379BZDNA80 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. Its memory subsystem supports 32-bit DDR3/DDR3L at 400-MHz clock (800-MT/s data rate) and LPDDR2 at 266-MHz clock (533-MT/s).

Peripherals include two 10/100/1000-Mbps Ethernet MACs with integrated switch and IEEE 1588v2 PTP support, six UARTs with IrDA/CIR, five McSPI interfaces (up to 48 MHz), three I²C masters/slaves, and dual 12-bit SAR ADCs with 8-channel multiplexing - one configurable as a 4-/5-/8-wire resistive touch-screen controller.

Key Specifications

Pinout & Package

NFBGA-491 package (ZDN suffix), 17.0 mm × 17.0 mm body size, 0.65-mm ball pitch, via-channel array architecture for simplified PCB layout and thermal management.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance industrial processor applications.

Compared with AM4378BZDNA80, AM4379BZDNA80 delivers 25% higher CPU throughput for Linux application layers while retaining identical real-time peripheral latency; versus AM5728BCBD4, it offers lower power, smaller footprint, and proven industrial protocol certification - ideal for cost- and size-constrained edge controllers.

Availability

AM4379BZDNA80 is available at Aetrix Electronics and suitable for industrial automation, human-machine interface, and motor control applications requiring stable component supply across extended product lifecycles.

Supply support for AM4379BZDNA80 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.

The AM437x Sitara processor family targets industrial automation and intelligent edge devices, integrating ARM Cortex-A9 performance with programmable real-time units and industrial protocol acceleration to replace FPGA+MPU architectures.

FAQ

What is the maximum operating frequency of the AM4379BZDNA80 processor core?

The AM4379BZDNA80 features an ARM Cortex-A9 microprocessor core rated for operation at up to 1000 MHz. This frequency is validated under specified thermal and voltage conditions per TI's SPRS851E datasheet, enabling high-throughput execution of Linux-based industrial applications while maintaining deterministic real-time response through the PRU-ICSS subsystem. The AM4379BZDNA80 achieves this speed with integrated L1/L2 caches and dynamic voltage-frequency scaling support.

Does the AM4379BZDNA80 support secure boot functionality?

Secure boot is available only on AM437x High-Security (HS) variants, which require factory programming of cryptographic keys and fuse configuration. The standard AM4379BZDNA80 does not include HS features such as secure boot, debug security, or Trusted Execution Environment support. For secure boot capability, designers must select an AM437xHS part number and engage TI's secure provisioning process. The AM4379BZDNA80 retains hardware crypto accelerators (AES/SHA/RNG) usable by software-managed secure boot implementations.

What package type and dimensions does the AM4379BZDNA80 use?

The AM4379BZDNA80 is packaged in a 491-ball NFBGA (ZDN suffix) with a 17.0 mm × 17.0 mm body size and 0.65-mm ball pitch. It employs via-channel array technology to simplify PCB routing and improve thermal dissipation. This package is mechanically and thermally identical across the AM437x family, enabling pin-compatible migration between AM4372/AM4376/AM4377/AM4378/AM4379 variants - though electrical and feature differences require firmware and layout validation.

How many Ethernet ports does the AM4379BZDNA80 support, and what protocols are enabled?

The AM4379BZDNA80 integrates two 10/100/1000-Mbps Ethernet MACs with an on-chip 2-port switch and full IEEE 1588v2 Precision Time Protocol (PTP) support. Both ports support MII, RMII, and RGMII physical layer interfaces and MDIO management. Industrial protocols including EtherCAT, PROFINET, and EtherNet/IP are implemented via the PRU-ICSS subsystem - not the Ethernet MACs directly - allowing deterministic, low-latency packet processing independent of the ARM core.

Can the AM4379BZDNA80's ADCs be used for both touch-screen control and analog sensor measurement?

Yes - ADC0 can be configured as a 4-/5-/8-wire resistive touch-screen controller (TSC), while ADC1 remains fully available for general-purpose analog measurements such as motor current or temperature sensing. Both are 12-bit SAR converters with 867 kSPS aggregate sampling rate and share eight analog input channels via an internal 8:1 analog switch. The AM4379BZDNA80 allows simultaneous use of ADC0 in TSC mode and ADC1 in standard ADC mode, with independent trigger and DMA routing to avoid resource contention.