Texas Instruments AM3351BZCEA30R

Overview

AM3351BZCEA30R from Texas Instruments is a 300-MHz ARM Cortex-A8-based Sitara™ processor with 256KB L2 cache (ECC), 64KB OCMC RAM, 8-channel 12-bit SAR ADC, and PRU-ICSS for industrial protocol offload-used in connected vending machines and smart toll systems requiring deterministic real-time I/O.

For engineers reviewing the AM3351BZCEA30R datasheet, AM3351BZCEA30R pinout, AM3351BZCEA30R application, or AM3351BZCEA30R equivalent, this page delivers verified specifications, validated ZCE package pin mapping, confirmed industrial Ethernet support via PRU-ICSS, and two documented alternative parts for cost- or temperature-sensitive designs.

Technical Context

The AM3351BZCEA30R implements a single-core ARM Cortex-A8 CPU at 300 MHz with NEON SIMD coprocessor, 32KB/32KB L1 instruction/data cache (parity), and 256KB L2 cache with ECC-targeting embedded Linux and TI-RTOS deployments where thermal headroom and BOM cost constrain higher-frequency variants. Its PRU-ICSS subsystem operates independently at 200 MHz with dual 32-bit RISC cores, 12KB shared RAM (parity), and dedicated MII/EtherCAT-capable Ethernet ports.

Memory subsystem includes 16-bit DDR2/DDR3/mDDR interface (up to 400-MHz clock), GPMC supporting NAND/NOR/SRAM with BCH 4-/8-/16-bit ECC, and integrated 12-bit ADC with touch-screen controller mode. Power management uses SmartReflex Class 2B AVS and DVFS across three switchable domains (MPU, GFX, PER) plus RTC and WAKEUP nonswitchable domains.

Key Specifications

Pinout & Package

AM3351BZCEA30R uses the 298-ball ZCE NFBGA package (13.0 mm × 13.0 mm, 0.65-mm ball pitch) with via-channel routing. Ball assignments are defined in TI SPRS717L Section 4.1.1 (ZCE Pin Map).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ARM Cortex-A8 application processor applications.

Compared with AM3351BZCEA30R, AM3352BZCZD60 offers higher performance and extended temperature range at the cost of larger package and higher power; AM3354BZCEA30 adds graphics and USB capability without increasing CPU frequency-ideal for cost-sensitive HMI upgrades.

Availability

AM3351BZCEA30R is available at Aetrix Electronics and suitable for connected vending machines, smart toll systems, home automation hubs, and educational consoles requiring stable component supply across multi-year production cycles.

Supply support for AM3351BZCEA30R 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 consumer markets since 1930.

The AM335x Sitara™ processor family targets cost-sensitive industrial automation and human-machine interface applications, combining ARM Cortex-A8 performance with PRU-ICSS real-time offload and integrated peripherals to reduce system-level BOM count.

FAQ

What is the maximum operating frequency of the AM3351BZCEA30R?

The AM3351BZCEA30R is factory-specified and tested at 300 MHz for the ARM Cortex-A8 core. This fixed frequency grade ensures consistent thermal behavior and power consumption in commercial-temperature applications. Unlike higher-grade variants (e.g., AM3358 at 1 GHz), the AM3351BZCEA30R does not support dynamic frequency scaling beyond 300 MHz, making it suitable for thermally constrained designs where predictability outweighs peak performance.

Does the AM3351BZCEA30R support industrial Ethernet protocols like EtherCAT?

Yes, the AM3351BZCEA30R supports EtherCAT and other industrial protocols through its Programmable Real-Time Unit Subsystem and Industrial Communication Subsystem (PRU-ICSS). The PRU-ICSS contains two independent 200-MHz RISC processors with dedicated MII Ethernet ports and internal RAM, enabling deterministic protocol stack execution without burdening the main Cortex-A8 core. This architecture is confirmed in TI's SPRS717L datasheet Section 1.1 and Table 3-1.

What package type and ball count does the AM3351BZCEA30R use?

The AM3351BZCEA30R uses the 298-ball NFBGA package with ZCE suffix, measuring 13.0 mm × 13.0 mm with 0.65-mm ball pitch. This via-channel package is documented in TI's SPRS717L Section 9.2 and Figure 4-1 (ZCE Pin Map). It differs from the 324-ball ZCZ package used in higher-pin-count variants like AM3352BZCZD60, offering a smaller footprint for space-constrained PCB layouts.

Can the AM3351BZCEA30R boot from NAND flash with hardware ECC?

Yes, the AM3351BZCEA30R supports NAND flash boot with hardware-based BCH error correction via its General-Purpose Memory Controller (GPMC). The GPMC implements BCH algorithms for 4-, 8-, or 16-bit error correction per 512-byte block, eliminating the need for software ECC in boot ROM initialization. This capability is explicitly listed in the "External Memory Interfaces" section of SPRS717L and validated in TI's AM335x Technical Reference Manual.

What is the role of the PRU-ICSS in the AM3351BZCEA30R?

The PRU-ICSS in the AM3351BZCEA30R provides two independent 200-MHz programmable real-time units that operate separately from the Cortex-A8 core. It handles time-critical tasks such as EtherCAT frame processing, GPIO bit-banging, encoder pulse counting (via eQEP), and PWM generation (via eHRPWM)-freeing the main CPU for application logic. Its 12KB shared RAM with parity and dedicated MII ports make it essential for deterministic industrial I/O, as confirmed in TI's device overview and functional block diagram.