Refer to the PDF data sheet for device specific package drawings
High-speed interfaces:
Functional safety:
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 (TCM) 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 target, PROFINET device, EtherNet/IP adapter, and IO-Link Controller. The PRU_ICSSG further provides capability for gigabit and TSN based protocols. In addition, the PRU_ICSSG enables additional interfaces 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 dedicated peripherals which can all be isolated from the rest of the SoC. AM243x also supports secure boot.
PART NUMBER | PACKAGE(1) | PIN COUNT | PACKAGE SIZE(2) |
---|---|---|---|
AM2434...ALV | ALV (FCBGA, 441) | 441 Pins | 17.2mm × 17.2mm |
AM2434...ALX | ALX (FCCSP, 293) | 293 Pins | 11.0mm × 11.0mm |
AM2432...ALV | ALV (FCBGA, 441) | 441 Pins | 17.2mm × 17.2mm |
AM2432...ALX | ALX (FCCSP, 293) | 293 Pins | 11.0mm × 11.0mm |
AM2431...ALV | ALV (FCBGA, 441) | 441 Pins | 17.2mm × 17.2mm |
AM2431...ALX | ALX (FCCSP, 293) | 293 Pins | 11.0mm × 11.0mm |
Figure 3-1 is the functional block diagram for the device.
Table 4-1 shows a comparison between devices options, and highlights the key differences.
FEATURES(1) | REFERENCE NAME | AM2434 (ALV) |
AM2432 (ALV) |
AM2431 (ALV) |
AM2434 (ALX) |
AM2432 (ALX) |
AM2431 (ALX) |
---|---|---|---|---|---|---|---|
JTAG DEVICE ID COMPARISON (FEATURES) | |||||||
CTRLMMR_JTAG_DEVICE_ID[31:13] DEVICE_ID register bit-field value(2) | C: ----------- D: 0x19064 E: 0x19065 F: 0x19066 |
C: 0x19023 D: 0x19024 E: 0x19025 F: 0x19026 |
C: 0x19003 D: 0x19004 E: ----------- F: ----------- |
C: ----------- D: 0x19064 E: 0x19065 F: 0x19066 |
C: 0x19023 D: 0x19024 E: 0x19025 F: 0x19026 |
C: 0x19003 D: 0x19004 E: ----------- F: ----------- |
|
PROCESSORS AND ACCELERATORS | |||||||
Speed Grades (See Table 6-1) | S | S | S | S | S, K | S,K | |
Arm Cortex-R5F | R5FSS | 2 × Dual Core R5F0_0 R5F0_1 R5F1_0 R5F1_1 |
2 × Single Core R5F0_0 R5F1_0 |
1 × Single Core R5F0_0 |
2 × Dual Core R5F0_0 R5F0_1 R5F1_0 R5F1_1 |
2 × Single Core R5F0_0 R5F1_0 |
1 × Single Core R5F0_0 |
Arm Cortex-M4F | M4FSS | 1 × Single Core Functional Safety Optional(3) |
|||||
Device Management Security Controller | DMSC-L | Yes | |||||
Crypto Accelerators | Security | Yes | |||||
PROGRAM AND DATA STORAGE | |||||||
Shared On-Chip Memory (OCSRAM) in MAIN Domain | OCSRAM | 2MB | 2MB | ||||
R5F Tightly Coupled Memory (TCM)(4) | TCM | 4 × 64KB | 2 × 128KB | 1 × 128KB | 4 × 64KB | 2 × 128KB | 1 × 128KB |
Shared On-Chip Memory (OCSRAM) in MCU Domain | MCU_MSRAM | 1 × 256KB | |||||
DDR4/LPDDR4 DDR Subsystem | DDRSS | Up to 2GB (16-bit data) with inline ECC | - | ||||
General-Purpose Memory Controller w/Error Location Module (ELM) | GPMC w/ELM | Up to 1GB with ECC | - | ||||
PERIPHERALS | |||||||
Modular Controller Area Network Interface | MCAN | 2 | |||||
Full CAN-FD Support(5) | MCAN | Optional | |||||
General-Purpose I/O | GPIO | Up to 198 | Up to 148 | ||||
Inter-Integrated Circuit Interface | I2C | 6 (2 in MCU Domain) | 3 (MAIN Domain Only) | ||||
Analog-to-Digital Converter | ADC | 1 (12-bit resolution) | 1 (10-bit resolution) | ||||
Multichannel Serial Peripheral Interface | MCSPI | 7 (2 in MCU Domain) | 4 (MAIN Domain Only) | ||||
MultiMedia Card/ Secure Digital Interface | MMCSD0 | eMMC (8-bits) | - | ||||
MMCSD1 | SD/SDIO (4-bits) | SD/SDIO (4-bits) | |||||
Fast Serial Interface | FSI_TX | 2 | 1 | ||||
FSI_RX | 6 | 4 | |||||
Flash Subsystem (FSS) | OSPI0 | Yes(6) | QSPI-Mode Only | ||||
PCI Express Port with Integrated PHY | PCIE | Single Lane | - | ||||
Programmable Real-Time Unit Subsystem(7) (PRU Cores, eGPIO, UART, ECAP. EPWM) |
PRU_ICSSG | 2 | |||||
Industrial Communication Subsystem Support(8) (RGMII/MII and additional Networking Interfaces) |
PRU_ICSSG | Optional | |||||
Gigabit Ethernet Interface | CPSW | Yes (2 External Ports) | |||||
General-Purpose Timers | TIMER | 16 (4 in MCU Domain) | |||||
Enhanced Pulse-Width Modulation Module | EPWM | 9 | 7(9) | ||||
Enhanced Capture Module | ECAP | 3 | |||||
Enhanced Quadrature Encoder Pulse Module | EQEP | 3 | |||||
Universal Asynchronous Receiver/Transmitter | UART | 9 (2 in MCU Domain) | 8 (1 in MCU Domain) | ||||
Universal Serial Bus (USB3.1 Gen1) SuperSpeed Dual-Role-Device (DRD) Port with SS PHY | USB | Yes(10) | No USB SuperSpeed Support (USB2 Only) |
Sitara™ Microcontrollers Our best-in-class Arm®-based 32-bit microcontrollers (MCUs) offer you a scalable portfolio of high-performance and power-efficient devices to help meet your system needs. Bring capabilities such as functional safety, power efficiency, real-time control, advanced networking, analytics and security to your designs.
Sitara™ Processors Broad family of scalable processors based on Arm® Cortex®-A cores with flexible accelerators, peripherals, connectivity and unified software support – perfect for sensors to servers. Sitara™ processors have the features and reliability needed for use in industrial and automotive applications.
Sitara™ Microcontroller - Applications Sitara™ microcontrollers provides a scalable portfolio for a wide range of applications from HMIs and gateways to more complex equipment such as drives and substation automation equipment. Sitara also offers multi-protocol support for industrial communication protocols such as EtherCAT®, Ethernet/IP, and Profinet.
Sitara™ Microcontroller - Reference Designs TI provides many reference designs containing user-friendly ‘building blocks’ to enable customers to rapidly develop their own unique products and equipments.
Sitara™ Microcontroller - Evaluation Modules TI provides Evaluation Modules (EVM) to help kick-start product development. See the AM243x Evaluation Module (TMDSAM243) and AM243x LaunchPad (LP-AM243x) tool folders for more information.
Companion Products for AM243x Review products that are frequently purchased or used in conjunction with this product to complete your design.