Key features of the CM4 are as follows: • Broadcom BCM2711, Quad core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
• Small Footprint 55mm × 40mm × 4.7mm module
◦ 4 × M2.5 mounting holes
• H.265 (HEVC) (upto 4Kp60 decode), H.264 (upto 1080p60 decode, 1080p30 encode)
• OpenGL ES 3.0 graphics
• Options for 1GB, 2GB,4GB or 8GB LPDDR4-3200 SDRAM with ECC (see Appendix B)
• Options for 0GB (CM4Lite), 8GB, 16GB, or 32GB eMMC Flash memory (see
Appendix B)
◦ Peak eMMC bandwidth 100MBytes/s (four times faster than previous Compute Modules)
• Option (see Appendix B) for certified radio module with:
◦ 2.4 GHz, 5.0 GHz IEEE 802.11 b/g/n/ac wireless
◦ Blue-tooth 5.0, BLE
◦ On board electronic switch to select between PCB trace or external antenna
• Gigabit Ethernet PHY supporting IEEE 1588
• 1 × PCIe 1-lane Host, Gen 2 ( 5Gbps )
•1 × USB 2.0 port ( highspeed )
• 28 × GPIO supporting either 1.8v or 3.3v signalling and peripheral options:
◦ Up to 5 × UART
◦ Up to 5 × I2C ◦ Up to 5 × SPI
◦ 1 × SDIO interface
◦ 1 × DPI (Parallel RGB Display)
◦ 1 × PCM
◦ Up to 2× PWM channels
◦ Up to 3× GPCLK outputs
• 2 × HDMI 2.0 ports (up to 4Kp60 supported)
• MIPI DSI:
◦ 1 × 2-lane MIPI DSI display port
◦ 1 × 4-lane MIPI DSI display port
• MIPI CSI-2:
◦ 1 × 2-lane MIPI CSI camera port
◦ 1 × 4-lane MIPI CSI camera port
• 1 × SDIO 2.0 (CM4Lite)
• Single+5v PSU input.