AM2434BSDFHIALVR datasheet(3/242 Pages) TI

3 / 242 page

– Safety-related certification

• IEC 61508 certification planned

– ECC or parity on calculation-critical memories

– ECC and parity on select internal bus

interconnects

– Built-In Self-Test (BIST) for CPU and on-chip

RAM

– Error Signaling Module (ESM) with external

error pin

– Run-time safety diagnostics, including:

• Voltage, Temperature, and Clock Monitoring

• Windowed Watchdog Timers

• CRC Engine for memory integrity checks

– MCU Domain with dedicated memory,

interfaces, and M4F core capable of being

isolated from the larger SoC with Freedom

From Interference (FFI) features

• Separate interconnect

• Firewalls and timeout gaskets

• Dedicated PLL

• Dedicated I/O supply

• Separate reset

SoC architecture:

• Supports primary boot from UART, I2C, OSPI/

QSPI Flash, SPI Flash, parallel NOR Flash,

parallel NAND Flash, SD, eMMC, USB 2.0, PCIe,

and Ethernet interfaces

• 16-nm FinFET technology

Package options:

• ALV - 17.2 mm × 17.2 mm, 0.8-mm pitch (441-pin)

FCBGA [Lidded] Flip-Chip Ball Grid Array package

• ALX - 11.0 mm × 11.0 mm, 0.5-mm pitch (293-

pin) FC/CSP [SiP] Flip-Chip/Chip Scale Package

package

2 Applications

• Programmable Logic Controller (PLC)

• Motor Drives

• Remote I/O

• Industrial Robots

3 Description

AM243x is an extension of Sitara’s industrial-grade portfolio into high-performance microcontrollers. The

AM243x device is built for industrial applications, such as motor drives and remote I/O modules, which require

a combination of real-time communications and processing. The AM243x family provides scalable performance

with up to four Cortex-R5F MCUs, one Cortex-M4F, and two instances of Sitara’s gigabit TSN-enabled PRU-

ICSSG.

The AM243x SoC architecture was designed to provide best-in-class real-time performance through the high-

performance Arm Cortex-R5F cores, Tightly-Coupled Memory banks, configurable SRAM partitioning, and

dedicated low-latency paths to and from peripherals for rapid data movement in and out of the SoC. This

deterministic architecture allows for AM243x to handle the tight control loops found in servo drives while

the peripherals like FSI, GPMC, ECAPs, PWMs, and encoder interfaces help enable a number of different

architectures found in these systems.

The SoC provides flexible industrial communications capability including full protocol stacks for EtherCAT slave,

PROFINET device, EtherNet/IP adapter, and IO-Link Master. The PRU-ICSSG further provides capability for

gigabit and TSN based protocols. In addition, the PRU-ICSSG also enables additional interfaces in the SoC

including a UART interface, sigma delta decimation filters, and absolute encoder interfaces.

Functional safety features can be enabled through the integrated Cortex-M4F along with its dedicated

peripherals which can all be isolated from the rest of the SoC. AM243x also supports secure boot.

www.ti.com

AM2434, AM2432, AM2431

SPRSP65C – APRIL 2021 – REVISED MARCH 2022

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