Olimex A20-SOM-EVB

Olimex A20-SOM -EVB (Rev B)

(Est.) release date: June 2013
Country of manuf.: Bulgaria

Type: single-board computer

Power: 6-16 VDC, 3 A
Connector type: barrel
Conn. measurements: 5.5 mm (OD), 2.1 mm (ID), 9.5 mm (LEN)

CPU1: Allwinner A20 (1.0 GHz, 2 cores)
FLA1: 4 GiB 4,096 MiB <br />4,294,967,296 B <br />33,554,432 Kib <br />4,194,304 KiB <br />32,768 Mib <br /> (SK hynix H27UBG8T2BTR-BC)
RAM1: 1 GiB 1,024 MiB <br />1,073,741,824 B <br />8,388,608 Kib <br />1,048,576 KiB <br />8,192 Mib <br /> (SK hynix H5TQ4G63AFR-PBC × 2)

Expansion IFs: USB 2.0, USB 2.0 (OTG), SATA
USB ports: 3
SATA ports: 1
Serial: yes, 3-pin header, populated, 3.3V TTL, (115200 8N1)

ETH chip1: Allwinner A20
ETH chip2: Realtek RTL8211CL
LAN speed: 1GbE
LAN ports: 1

Additional chips
PMIC;X-Powers Limited;AXP209;;1;
2A 18V Synchronous Rectified Step-Down Converter;Monolithic Power Systems;MP1482DS;;1;

Stock bootloader: U-Boot 2021.04

Stock FW OS: Linux 5.10.180 Debian 11

Flags: SD Card slot, Micro SD Card slot, HDMI, VGA out, LCD, Camera 2MP, Audio in/out (3.5mm), Li-Po battery connector, UEXT, GPIO

Ethernet OUI: none specified

	CPU1 brand	FLA1	RAM1
Olimex A20-SOM	Allwinner	4,096 MiB4,294,967,296 B <br />33,554,432 Kib <br />4,194,304 KiB <br />32,768 Mib <br />4 GiB <br />	1,024 MiB1,073,741,824 B <br />8,388,608 Kib <br />1,048,576 KiB <br />8,192 Mib <br />1 GiB <br />
Olimex A20-SOM-EVB	Allwinner	4,096 MiB4,294,967,296 B <br />33,554,432 Kib <br />4,194,304 KiB <br />32,768 Mib <br />4 GiB <br />	1,024 MiB1,073,741,824 B <br />8,388,608 Kib <br />1,048,576 KiB <br />8,192 Mib <br />1 GiB <br />

For a list of all currently documented Allwinner SoC's with specifications, see Allwinner.

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Reference Design Board for A20 SOM

Product Page

Links

• Olimex A20-OLinuXino Prototype, AllWinner A20 SoM on CNX|Software
• Olimex A20-OLinuXino-Micro on Linux-SunXi Wiki

Hardware specification

• CPU: Allwinner A20 2x @1.0GHz

SoC: Dual-Core ARM (Cortex-A7)

GPU: Mali-400

• Memory: 1GB (DDR3) SDRAM (Micron)
• Storage: 4GB (NAND) flash (SK hynix),

TF card (max.64GB)/MMC card slot,

SD/SDHC/MMC card slot, SATA port

• Network: 1x GbE port (RTL8211CL)
• USB: 1x USB 2.0 (OTG), 2x USB 2.0 ports
• GPIO: 2x UEXT headers, additional GPIO pins
• Power Source: 6-16V/3A via barrel or

3.7V LiPo battery or 5V via USB OTG

See also

Olimex Products • Olimex Devices

• Olimex OLinuXino-MAXI (iMX233)

Olimex OLinuXino-MICRO (iMX233)

Olimex OLinuXino-MINI (iMX233)

Olimex OLinuXino-NANO (iMX233)

• Olimex A10-OLinuXino-Lime

Olimex A10s-OLinuXino-Micro

• Olimex A13-OLinuXino

Olimex A13-OLinuXino-Micro

Olimex A13-OLinuXino WIFI

• Olimex A13-SOM
• Olimex A20-OLinuXino-Lime

Olimex A20-OLinuXino-Lime2

• Olimex A20-OLinuXino-Micro

Olimex A20 MICRO 8GB

• Olimex A20-SOM

Olimex A20-SOM204

• Olimex A33-OLinuXino
• Olimex A64-OLinuXino-1G
• Olimex AM3352-SOM-EVB
• Olimex ARM-USB-TINY-H

Images

• 

  Board Top

• 

  Board Bottom

• 

  Board w/SoM