Product Introduction:LM7

Let's get to know LM7 in 5 minutes.

Overview

The ArmSoM-LM7 adopts Rockchip's latest flagship RK3588 which is eight-core 64-bit processor with a maximum frequency of up to 2.4GHz and a 6 TOPS NPU. It supports up to 32GB of large memory.

Supports 8K video encoding and decoding,with LGA packaging for stronger transmission capability and stability.

We can provide baseboard reference design materials for users to customize in-depth independently.

It can be applied to diversified fields such as ARM PCs, edge computing, cloud servers, artificial intelligence, cloud computing, virtual/augmented reality, blockchain, smart NVRs, etc.

Applications

Rockchip RK3588 design ArmSoM-Sige7 AI SBC design;

Rockchip RK3588 design ArmSoM-AIM7 Core board fully compatible with Jetson Nano/TX2 NX;

Rockchip RK3588 design ArmSoM-LM7 LGA core board ;

Rockchip RK3588 design ArmSoM-W3 LGA core board maker kit;

With the powerful ecosystem and variety of extension modules, ArmSoM can help users easily go from ideas to prototype to mass production, making it an ideal creative platform for makers, dreamers and hobbyists.

Key Parameters

• SOC: Rockchip RK3588
• CPU: RK3588 quad-core Cortex-A76 @ 2.4GHz + quad-core Cortex-A55 @ 1.8GHz, 8nm process
• GPU: ARM Mali-G610 MP4
• NPU: Computing power up to 6 TOPS (INT8), supports INT4/INT8/INT16 mixed computing
• VPU/Codec:
  • Hardware decoding: 8K@60fps H.265/VP9/AVS2, 8K@30fps H.264 AVC/MVC, 4K@60fps AV1, 1080P@60fps MPEG-2/-1/VC-1/VP8
  • Hardware encoding: 8K@30fps H.265 / H.264
• RAM: 4GB/8GB/16GB (max 32GB) 64bit LPDDR4/LPDDR4x, default LPDDR4x 8GB
• Flash: 16GB/32GB/64GB/128GB eMMC, default eMMC 32GB
• Operating voltage: 4V (±5% voltage variation)
• Operating temperature: 0°C ~ 70°C
• Interface type: LGA package, 506 pins in total
• Operating systems:
  • Officially supported by Rockchip: Android 12.0, Debian 11, Buildroot
  • Supported by the Third party : Armbian, Ubuntu 20.04, Ubuntu 22.04, Kylin OS
• PCB: 12-layer PCB design
• Weight: About 13.4g
• Size: 45mm × 50mm × 4.5mm (top: 2.2mm + PCB: 1.2mm + bottom: 1.1mm)

Hardware

Hardware Interface

info

The ArmSoM-LM7 has an extremely small size, about half the size of a credit card.

Hardware Specification

Type	Function	Quantity	Parameters
Video input interface	MIPI DC(DPHY/CPHY) combo PHY	2	Support DPHY or CPHY Support 4-channel MIPI DPHY V2.0，with up to 4.5Gbps per lane Support 3-channel MIPI CPHY V1.1，with up to 2.5Gbps per lane	Supported MIPI camera combinations： 2 MIPI DCPHY + 4 MIPI CSI DPHY(2 lanes) 2 MIPI DCPHY + 1 MIPI CSI DPHY(4 lanes) + 2 MIPI CSI DPHY(2 lanes) 2 MIPI DCPHY + 2 MIPI CSI DPHY(4 lanes)
	MIPI CSI DPHY	4	2-channel MIPI DPHY V1.2, with up to 2.5Gbps per lane Dual 2 lanes DPHY can be combined into single 4lanes DPHY
	DVP	≤1	Standard 8/10/12/16-bit DVP interface, up to 150MHz data input Support BT.601/BT.656 and BT.1120 VI interface
	HDMI RX	1	Support 3.4Gbps~6Gbps HDMI 2.0 Support 250Mbps~3.4Gbps HDMI 1.4b Support HDCP2.3 and HDCP1.4
Display output interface	HDMI/eDP TX interface	≤2	Support dual HDMI/eDP TX multiplex interface（HDMI and eDP cannot work together simultaneously ） HDMI supports 7680×4320@60Hz resolution and 3,6,8,10,12Gbps bandwidth，HDCP2.3 eDP supports 4K@60Hz resolution，Each interface supports x1,x2,x4 configurations，supports 1.62Gbps,2.7Gbps and 5.4Gbps bandwidth and HDCP1.3
	DP TX	2	Support 2 lanes DP TX 1.4a interface，connecting with USB3.1 Gen1，support 1/2/4lanes Resolution up to 8192x4320@30Hz Support HDCP2.3, HDCP 1.3
	MIPI DSI	2	Support dual MIPI DPHY 2.0 or CPHY 1.1，Resolution up to 4K@60Hz Support dual MIPI display in left-right mode, support RGB/YUV formats (up to 10bit)
	BT.1120 video output	≤1	Support RGB format (up to 8bit), data rate up to 150MHz, Maximum resolution up to 1920x1080@60Hz
Audio interface	I2S	≤4	8 lanes I2S0/I2S1：Support TX and RX，Audio resolution 16~32 bit, sampling rate up to 192KHz 2 lanes I2S2/I2S3：Support TX and RX，Audio resolution 16~32 bit, sampling rate up to 192KHz
	SPDIF	≤2	Support 2x 16bit audio data storage Support biphase stereo output
	PDM	≤2	Up to 8 channels, audio resolution 16~24 bit, sampling rate up to 192KHz Support PDM master receive mode
Network port	GMAC	≤2	2 GMACs, provide RGMII / RMII interface Support 10/100/1000Mbps data transfer rate
Communication Interfaces	SDIO	≤1	Support SDIO3.0
	USB 2.0 Host	2	Support dual lanes USB2.0 Host
	SATA	≤3	3 SATA3.0 controllers, multiplexed with PCIe2.0 and USB_HOST2 controllers via PIPE PHY0/1/2 Support eSATA, up to 6Gbps data rate	Combo PIPE PHY0 support：SATA/PCIe2.1 Combo PIPE PHY1 support：SATA/PCIe2.1 Combo PIPE PHY2 support：SATA/PCIe2.1/USB3.1 Gen1
	USB3.1 Gen1	≤3	USB3.1 Gen1 data rates up to 5Gbps Dual lanes USB3.1 OTG， multiplexed with DP TX (USB3OTG_0 and USB3OTG_1)，USB3OTG_0 and USB3OTG_1 support USB Type-C and DP Alt Single lane USB3.1 Host multiplexed with PIPE PHY2 (USB3OTG_2)
	PCIe2.1	≤3	Each PCIe2.1 interface supports 1 lane, up to 5Gbps data rate
	PCIe3.0	≤4	Support RC and EP Support up to 8Gbps data rate per lane Support 4 combination modes: 1 x4 lane, 2 x2 lanes, 4 x1 lanes, 1 x2 lane + 2 x1 lanes
	SPI	≤5	Each controller supports two chip select outputs Support serial master, serial slave modes, software configurable
	I2C	≤9	Support 7-bit and 10-bit address modes Standard mode data rate up to 100k bits/s, up to 400k bits/s in fast mode
	UART	≤10	Built-in 2 64bit FIFOs, can be used for TX and RX separately Support 5-bit, 6-bit, 7-bit, 8-bit serial data transmit and receive, baud rate up to 4Mbps 10 UARTs support automatic flow control mode
	CAN	≤3	Support 3 CAN 2.0B channels Support CAN standard and extended frames transmit and receive
Others interface	GPIO	GPIOs	All GPIOs can be used to generate interrupts Support level triggered and edge triggered interrupts Support configurable pull-up direction (weak pull-up and weak pull-down)
	ADC	≤7	Support 7 12bit single-ended input SAR-ADCs, sampling rate up to 1MS/s
	PWM	≤16	Up to 16 on-chip PWMs, support capture mode PWM3, PWM7, PWM11, PWM15 are optimized for IR applications

info

The interface quantities in the table are the maximum theoretical values for the hardware design or CPU.

Most function pins have multiplexed relationships. For easy configuration, please refer to the Pin Function Table for the LM7.

Development Kit (W3)

ArmSoM-LM7 Development Kit (ArmSoM-W3)

Hardware Interface (W3)

Resources

Source Code

ArmSoM-W3 BSP

ArmSoM-W3 kernel

ArmSoM-W3 uboot

Official Images

Based on Debian bullseye works as official operating system by the ArmSom team.

The following systems have been tested and verified by ArmSoM officially:

Download link: Google Drive link

Debian bullseye

Image location: 3. Linux Images/debian/ArmSoM-LM7(Development Kit ArmSoM-W3) - Google Drive link

Android 12

Image location: 4. Android Images/ArmSoM-LM7(Development Kit ArmSoM-W3) - Google Drive link

Release Information

View the initial official release announcement for ArmSoM-W3 here:
System Release Notice for ArmSoM-W3

Third Party Systems

armbian

Armbian_23.11.0-trunk_Armsom-w3_bookworm_legacy_5.10.160.img

Armbian_23.11.0-trunk_Armsom-w3_bookworm_legacy_5.10.160_cinnamon_desktop.img

Armbian_23.11.0-trunk_Armsom-w3_jammy_legacy_5.10.160.img

Armbian_23.11.0-trunk_Armsom-w3_jammy_legacy_5.10.160_xfce_desktop.img

Ubuntu

Image location: 3. Linux Images/ubuntu/ArmSoM-Sige7 - Google Drive link

joshua-ubuntu-rockchip-download

LM7 Hardware Resources

ArmSoM-LM7 Pin Function Table - Download pin function table

ArmSoM-LM7 Package - Download package info

Development Kit (W3) Resources

ArmSoM-W3_1V1 Schematics pdf, orcad source - Download schematics pdf and source files (orcad)

ArmSoM-W3_1V1 PCB PADS - Download PCB source files (PADS)

ArmSoM-W3 Top, Bottom - Download 2D CAD files

ArmSoM-W3_1V1 Assembly Drawing - Download components Position Reference of W3 V1.1

Note

tip

It is not recommended to use the LM7 for 8K display,because the HDMI output 8K places very high layout routing requirements that are basically unachievable with a core board + base board design approach.

Here are some tips for your design reference:

1. A one-piece board design must be adopted.Please pay attention that there is no layer change across the entire HDMI signal path.

2. Strictly follow the hardware reference design guidelines for impedance control, trace length matching, etc.

3. The HDMI connector is required to support HDMI 2.1 protocol ,8K compatible.

Easy to buy sample

ArmSoM online shop: https://www.armsom.org/product-page/lm7-development-kit

ArmSoM Aliexpress online shop: https://www.aliexpress.com/item/3256805435700769.html

ArmSoM Taobao shop: https://item.taobao.com/item.htm?id=714003739668

OEM&ODM, please contact: sales@armsom.org