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ARM Cortex Computing Platform



  • TI Sitara AM4378 @800MHz or 1GHz
  • 512MB or 1GB DDR3L
  • 4GB eMMC Flash
  • 24-bit Parallel LCD
  • SDHC/SDIO x 2
  • Dual-Port 10/100/1000Mbps Ethernet
  • COM x 4, USB 2.0 x 2
  • CANbus x 2, I2C x 3, I2S x 1, SPI x 2

Possible Applications

  • Human Machine Interface (HMI)
  • IOT Gateway
  • Programmable logic/automation controllers (PLC/PAC)
  • Industrial Automation
  • General Control Systems
  • Smart Grid
  • HVAC Control System
  • Patient monitoring

SMARC LOGOTexas Instrument LOGOYocto Project LOGO
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Embedian continues to optimize and expand its portfolio of SMARC solutions for the embedded market. With the Sitara AM4378 processors support for the ARM Cortex-A9 core, extending performance by up to 40 percent over the Sitara AM335X processor line and up to 1GHz. These high performance successors to the popular SMARC-T335X platform integrate additional features to support a variety of markets from human machine interfaces (HMI) to IoT gateways to industrial automation. In addition to the new Cortex-A9 core, highlights of the SMARC-T4378 include 24-bit parallel LCD interface, dual-port gigabit Ethernet and richer legacy peripherals.
SMARC-T4378 supports both SMARC 1.0 and SMARC 1.1 standards (automatically detect).

Technical Information
Part Number
SMARC-T4378 part number
  • 1: 800 (CPU running at 800Mhz and using 512MB DDR3L memory)
         01G (CPU running at 1GHz and using 1GB DDR3L memory)
  • 2: I: Industrial temperature (-40oC ~ 85oC); Leave it Blank for normal temperature.
  • 3: C: Conformal Coating, only support industrial temp.; Leave it Blank if you do not need it.

Example: SMARC-T4378-800: SMARC-T4378 module with Sitara AM4378 processor running at 800Mhz and uses 512MB DDR3L in normal temperature

SMARC 1.0 _and_ SMARC 1.1 (same P/N)

Dimension (W x L)
82mm x 50mm

Sitara AM4378

1 ARM Cortex-A9

800MHz or 1GHz

Main Memory
512MB DDR3L (with 800MHz Processors)

1GB DDR3L (with 1GHz Processors)

4GB eMMC (5.x) flash onboard

4MB SPI NOR Flash onboard

AT24C32 EEPROM onboard

Graphic Controller

SGX530 2D/3D Acceleration

Display Interfaces
24 bit parallel RGB LCD data and control signals

SDIO Interfaces
Two SDIO interfaces
  • 4 bit SDIO card interface with support lines
  • 8 bit eMMC interface with support lines

SPI Interfaces
Two SPI interfaces

I2S Interfaces
One I2S interface
  • Typically used for connection to I2S audio CODECs

I2C Interfaces
Three I2C interfaces
  • Power Management
  • General Purpose
  • LCD Display ID

Asynchronous Serial Port (UART) Interfaces
Four asynchronous serial ports

Two with 4 wire with handshake (RXD, TXD, RTS#, CTS#)

Two with data only (RXD, TXD)

Logic level interface

CAN Bus Interfaces
Two CAN bus interfaces
  • Logic level signals from Module based CAN bus protocol controllers
  • RXD, TXD only
  • Two Module GPIOs are designated for optional use as CAN bus error status inputs

USB Interfaces
Two USB Ports allow USB 2.0 Host operation (Full Speed and High Speed)

One port allows USB 2.0 OTG (USB client or host)

USB support signals (VBUS enable / Over-current detects, OTG support signals)

Gigabit Ethernet
Two analog GBE MDI interfaces (Qualcomm Atheros AR8035 PHY onboard)

No magnetics on Module

LED support signals

CTREF (center tap reference voltage) for Carrier magnetic

Watchdog Timer Interfaces

Real-Time Clock
External Seiko S35390A onboard

General Purpose I/O
Twelve GPIO signals

Specific alternate functions are assigned to some GPIOs

PWM / Tachometer capability

Camera support

CAN Error Signaling

HD Audio reset

System and Power Management Signals
Reset out and Reset in

Power button in

Power source status

Module power state status

System management pins

Battery and battery charger management pins

Carrier Power On control

Power Consumption (Typical)
Typical: 2.1W

Boot Source Select
Three pins to allow selection from Carrier Board

Select options to include boot from one of the following:
  • Module SPI
  • Module eMMC Flash
  • Module NOR Flash
  • Module Remote Boot (Network or Serial Port)
  • Carrier SPI
  • Carrier eMMC
  • Carrier SD Card

Power Supply
3V to 5.25V:
Operates directly from single level Lithium Ion cells, or fixed 3.3V or 5V power supply

Linux Kernel 4.9.41 (Based on TI Processor SDK or
Linux Kernel 4.4.12 (Based on TI Processor SDK or
Linux Kernel 4.1.13 (Based on TI Processor SDK

Yocto Project Support

Ubuntu 14.04/16.04 LTS or Debian 9 Support

Form Factor
82 mm x 50 mm by SMARC Specification

Evaluation Baseboard (EVK-STD-CARRIER)
12V~24V Power input with 2.5mm DC Jack connector

Audio Jack

RTC backup battery holder


LVDS, VGA DSUB15 (from 24-bit parallel LCD) and HDMI connector

2 x 10/100/1000Mbps RJ-45 connector

1 x 4-wire resistive touch connector

2 x RS232/422/485 DSUB9 connector, 2 x RS232 2.0mm Header

2 x USB host 2.0 type A connector, 1 x mini USB client connector

1 x PCIe connector, 2 x mini PCIe connector

2 x CAN BUS header, 1 x 2x7-pin GPIO header, Audio Mic. in and Speaker out Audio Jack

2 x I2C Connector (for capacitive touch), 4 x SPI connector, 1 Camera/MIPI header

1 x SDHC connector, 1 x onboard eMMC

A single 4KB EEPROM is provided on I2C0 that holds the board information. This information includes board name, serial number, and revision information.

1 x external watchdog reset

jumpers for LCD 3.3V or 5V voltage, boot selection, RS232 or RS485 selection, SMARC 1.0 or SMARC 1.1 selection

Form factor: 170mm (L) x 170mm (W) (mini-ITX form factor)

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