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2.5 Block diagram
Trusted Secure
2x I/O Expander
Element
RJ-45
RS-232
Connector
microSD Slot
RS-232
Connector
Debug UART
M.2 Key E Slot
Buzzer
Touch Screen
CAN
RS485 Ext
Dual 4-wire
UART Conn.
SBC-D23
SBC-D23 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B. - Reviewed by P.Z. - Copyright © 2021 SECO S.p.A.
Ultra Low
EEPROM
Power RTC
I2C1
RMII
ETH PHY
RS-232
Transceiver
UART 0
RS-232
Transceiver
SDIO0/UART4
UART2
UART1
SDIO
PWM2
I2C2
eMMC
CAN
Transceiver
RS-485
Transceiver
Dual 2-wire
Dual I2C
SPI Connector
UART Conn.
Connector
Coin Cell
Battery Holder
Memory
I2C0
I2S
RGB
I2C1
MIPI-CSI
ROCKCHIP
USB_HOST
PX30
eMMC
SPI0
I2C2
PWM1
Enable
LVDS
STM32F302VCT6
I2C1
8-Channel
16 GPI
16 GPO
Timer
Connector
Connector
Speaker Out
Opt. Class-D
Amplif. Stereo
Audio Amplifier
Speaker Out
Headphone
PMIC – Audio
TRRS
Mic In
Codec
RGB to HDMI
HDMI
bridge
Camera
Connector
miniPCI-e Slot
microSIM Slot
USB Type-A
Connector
USB
Dual USB 2.0
Type-A
USB Hub
T/S connector
LVDS
LED Driver
VLED Connector
USB_OTG
USB recovery
connector
USB Client
Header
21
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