RPI-PC-AV8-TO7 – DATASHEET

Product Features #

• Raspberry CM4
• Broadcom BCM2711 quad-core Cortex-A72 (ARM v8) 64-bit SoC
• Integrated 7-inch touch panel. 
• PLC functionality 
• Ethernet connectivity
• eMMC or micro-SD Card support
• OpenGL ES 3.1, Vulkan 1.0
• Built-in RS-485 
• Built-in Digital Inputs
• Analog Inputs
• Transistor Outputs
• DIN-Rail mount

Main #

Complementary #

Mechanical Properties #

Environment #

Electrical Characteristics #

Grid Powered Devices #

Processing #

Peripherals #

microSD Cards support #

The Primary storage source for non-e-MMC versions of Cm4. The CM4 Lite version does not have on-board eMMC. The eMMC signals are available on the connector so that an external eMMC or SD card can be used. 

The micro SD Card socket is a PUSH-PUSH socket. 

To release the micro SD Card a gentle push on the micro SD Card will enable it to be removed. 

Internal RTC #

HDMI Display and Touch Panel #

The CM4 supports two display ports, DISP0(2 lanes) and DISP1(4 lanes).  Each lane supports a maximum data rate per lane of 1Gbit/s.

INPUTS and OUTPUTS #

Digital Inputs #

Number of Digital Inputs	8
Digital Input Polarity	Sink and Source
Digital Input Maximum Voltage	32V DC
Digital Input Minimum Voltage	18V DC
Maximum Switching Frequency	1 kHz
Terminal Arrangement	Digital Input 1 – IO6 Digital Input 2 – IO5 Digital Input 3 – IO33 Digital Input 4 – IO27 Digital Input 5 – IO17 Digital Input 6 – IO4 Digital Input 7 – IO3 Digital Input 8 – IO2

Analog Inputs #

Number of Analog Inputs	8
Analog Input Measurement Range	0-10V
Analog Input Maximum Voltage	38V DC
Analog to Digital Converter (ADC) Address	0x48,0x49
Terminal Arrangement	A1 : Analog Input 1 – 0x49 – AIN0  A2 : Analog Input 2 – 0x49 – AIN1 A3 : Analog Input 3 – 0x49 – AIN2 A4 : Analog Input 4 – 0x49 – AIN3 A5 : Analog Input 5 – 0x48 – AIN0  A6 : Analog Input 6 – 0x48 – AIN1 A7 : Analog Input 7 – 0x48 – AIN2 A8 : Analog Input 8 – 0x48 – AIN3

Transistor Outputs #

Number of Transistor Outputs	7
Transistor Output Type	OPEN COLLECTOR
Maximum Sink/Source Current (mA)	100mA
Maximum Applicable Voltage	40V  DC
Maximum Switching Frequency	1 kHz
Terminal Arrangement	Q1 – Transistor Output 1 – IO21  Q2 – Transistor Output 2 – IO20  Q3 – Transistor Output 3 – IO16  Q4 – Transistor Output 4 – IO24  Q5 – Transistor Output 5 – IO23  Q6 – Transistor Output 6 – IO19  Q7 – Transistor Output 7 – IO26

Communication Channels #

RS-485 Communication #

Communication Mode	HALF DUPLEX
Transceiver	SP490CN-L
Unit Load	1
TX Pin	GPIO15
RX Pin	GPIO14
Flow Control	GPIO18
Communication Mode	Via UART
Terminal Arrangement

Ethernet  #

Gigabit Ethernet transceiver IEEE 1588-2008 compliant MDI crossover, Pair skew, and pair polarity correction.

USB Device #

Designed to enable the CM4 to be updated via RPI boot. When a USB cable is plugged in the USB hub is automatically disabled, so the CM4 USB 2.0 port becomes a USB device 

USB 2.0 HUB  #

The device has an onboard USB 2.0 hub. Can be used to connect third-party USB Devices like USB Modems and data converters. 

This connects to the CM4 USB 2.0 port. Two ports from the hub are connected to a connector. The other port of the USB 2.0 hub is connected to the touch screen. 

There is an internal current limit switch to provide VBUS to the USB connectors. The current limit is set to approximately 1.2A. 

The USB interface is disabled to save power by default on the CM4.  To enable it you need to add the following to the config.txt file: dtoverlay=dwc2,dr_mode=host * 

The factory version of the Raspbian OS which is pre-installed on the device has a USB 2.0 hub enabled by default.

M.2 NVMe Storage (Internal Port)  #

M.2 NVMe Storage can be installed as additional storage for the controller, where heavy applications are run, NVMe boot is not supported by the boot loader, the device must boot from a separate source.

Supported Programming Methods  #

Python 

Node-RED 

Factory Installed OS  #

Raspbian OS Full Pre-configured for DS3231 RTC 

USB2.0 HUB 

Disabled Display Sleep

Ordering Information #

GPIO Map #