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System On Module- TI AM437x
- VAR-SOM-AM43 TI AM437x
VAR-SOM-AM43
TI AM437x
Supporting the 1GHz Sitara™ AM437x ARM® Cortex™-A9 processor from Texas Instruments (TI) with quad 200MHz real-time programmable unit (PRU) and a rich 2D/3D graphics accelerator. The quad PRUs are ideal for offloading real-time processing from the main Cortex CPU, managing deterministic tasks and supporting dedicated industrial protocols. The PRUs alongside the rich industrial connectivity of the VAR-SOM-AM43 System on Module / Computer on Module makes it an optimized solution for products targeting automation, robotics, controllers, HMI and other industrial segments.
With dual GbE, USB, touch controller, audio, certified WiFi 802.11 a/b/g/n with optional MIMO and Bluetooth/BLE, the VAR-SOM-AM43 is also highly integrated with support for a wide range of operating systems.
Highlights
CPU
1GHz Cortex™-A9 Texas Instruments AM437x
Real-time CPU
Quad 200MHz PRU
Certified WiFi/Bluetooth
802.11 a/b/g/n + MIMO
Temperature range
-40 to 85°C
Multimedia
PowerVR SGX530 Accelerated 2D and 3D
Product Longevity
2030
Ethernet
10/100/1000 Mbps + 10/100/1000 RGMII
Support
Supporting you every step of the way - from ideation to launch and beyond.
Free and prompt support directly from Variscite’s R&D experts.
Quick Links
Specifications
CPU Name
Texas Instruments AM437x ( AM4376, AM4377, AM4378, AM4379 )
CPU Type
Cortex™-A9
CPU Cores
1 Core
CPU Clock (Max)
1.0 GHz
PRU
4 x 200MHz
Integer performance (DMIPS)
Up to 2,500
RAM
256 - 1024 MB DDR3
SLC NAND
0 - 512 MB SLC NAND
eMMC
8 - 64 GB
Multimedia
2D/3D Graphics Acceleration
PowerVR SGX530 Accelerated 2D and 3D
Camera Interfaces
1x CPI
Display
Parallel RGB
1400 x 1050 24-bit
Touch controller
Resistive, Capacitive
Audio
Headphone driver
Yes
Microphone
Analog, Digital
Line In/Out
Yes
Digital audio serial interface
S/PDIF, IEC60958-1, AES-3
Connectivity
SD / MMC
x3
USB Host / Device
USB 2.0 : 1x Host, 1x OTG
UART
x5, up to 3.6 Mbps
I2C
x3
SPI
x4
1 Wire/HDQ
x1
CAN Bus
x2
RTC
On carrier
Networking
Ethernet
10/100/1000 Mbps + 10/100/1000 RGMII
WiFi
Certified 802.11 a/b/g/n + MIMO
Bluetooth
5.1 + CSA2 support / BLE
Linux
Yes
Android
No
Mechanical Specifications
Dimensions (W x L)
67.8 x 38.6 mm
Electronic Specifications
Supply voltage
3.3 V
Digital I/O voltage
3.3 V / 1.8 V
Environmental Specifications
Commercial operating temperature
0 to 70°C
Extended operating temperature
-20 to 70°C
Industrial operating temperature
-40 to 85°C
Storage temperature
-40 to 85°C
Storage humidity
5% to 95%
VAR-SOM-AM437[x]_[xxxx]C_[xxxx]R_[xxx]N_[xx]G_[AC]_[EC]_[WB[D]]_[x]T_LO
AM437[x]:
CPU type: 6: AM4376 , 8 : AM4378 , 9 : AM4379
[xxxx]C:
Clock speed: 800 MHz : 800C, 1000 MHz : 1000C
[xxx]R:
RAM size: 256 MB : 256R,512 MB : 512R, 1024 MB : 1024R
[xxx]N:
NAND size: 128 MB : 128N, 256 MB : 256N, 512 MB : 512N
[xx]G:
eMMC size: 8 GB : 8G, 16 GB : 16G, 32 GB : 32G
[AC]:
Audio Codec
[EC]:
10 / 100 / 1000 Mbps Ethernet PHY
[WB[D]]
WB: Built-in certified WiFi 802.11 b/g/n + Bluetooth 5.1 + CSA2 support/BLE (CT/ET only)
WBD: Built-in certified WiFi 802.11 a/b/g/n with MIMO + Bluetooth 5.1 + CSA2 support/BLE
WBD: Built-in certified WiFi 802.11 a/b/g/n with MIMO + Bluetooth 5.1 + CSA2 support/BLE
[x]T:
C : 0 to 70°C,E : -20 to 70°C, I : -40 to 85°C
Our Long-Standing Partnerships
Our close partnerships with leading technology vendors provide our customers with early access to the latest advanced solutions, ensuring your projects begin with a solid and future-ready foundation.
Evaluation Kit
VAR-SOM-AM43 Evaluation Kits
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Why Variscite?
Quality
In-house manufacturing with comprehensive quality control - certified to ISO9001 and ISO13485 medical standards.
Pin2Pin
Our Pin2Pin product families maximize scalability and enable seamless migration to future technologies without redesigning the carrier board.
Longevity
15-year guaranteed hardware availability, backed by continuous software updates and support.
Customizability
Configure your system with precision and flexibility - select only the features you need and reduce costs.
Updates
09.10.2024 Software releases
Stay current with software updates – Keep your Variscite SoMs performing at their best with our latest software releases.
16.06.2026
Newsroom
Global component shortages are putting embedded projects under pressure. As a leading global System on Modules (SoMs) developer and manufacturer, we keep our customers’ development timelines on track by applying a supply chain strategy built on buffered inventories, in-house production, established relationships with multiple suppliers, and more than two decades of operational experience.
As AI-driven demand accelerated through 2025, memory chip shortages developed as semiconductor manufacturers shifted capacity to large-volume buyers, leaving many sectors, including medical, industrial, edge/IoT, and robotics poorly served. Climbing prices and lengthening lead times, exacerbated by knock-on effects across other SoM components, have created two clear pressure points. SoM vendors relying on outsourced manufacturing have limited flexibility when availability drops, leaving customers facing the same delays. Separately, product developers who chose chip-down architectures over SoM-based designs must procure components on their own. Those buying in smaller quantities are routinely pushed down supplier priority lists, and in many cases cannot get supply at all.
As AI-driven demand accelerated through 2025, memory chip shortages developed as semiconductor manufacturers shifted capacity to large-volume buyers, leaving many sectors, including medical, industrial, edge/IoT, and robotics poorly served. Climbing prices and lengthening lead times, exacerbated by knock-on effects across other SoM components, have created two clear pressure points. SoM vendors relying on outsourced manufacturing have limited flexibility when availability drops, leaving customers facing the same delays. Separately, product developers who chose chip-down architectures over SoM-based designs must procure components on their own. Those buying in smaller quantities are routinely pushed down supplier priority lists, and in many cases cannot get supply at all.
21.06.2026
Blog
Your OS Decision Matters
29.04.2026
