05. neqto: Bridge IO Board

Introduction

The neqto: Bridge IO Board is an evaluation expansion board for easily connecting peripheral devices to the peripheral interface of the neqto: Bridge Module, such as UART, I2C, and GPIO.
Hereinafter, "neqto: Bridge IO Board" is called "IO board" and "neqto: Bridge Module" is called "module".
By identifying the connected IO board, the module automatically enables the function unique to the IO board.
neqto.js' nqEx Object is used to control each interface. All interfaces are disabled by default, so enable them as needed.


Main Specifications

ItemSpecsNotes
Digital I/OUART x 1 ch, I2C for Module x 1 ch, I2C for Long cable x 1 ch, I2C for Short cable x 1 ch, GPIO x 2 ch
Photo coupler input1 ch12 VDC, 4 mA
MOS Relay Output1 ch- Relay contact: 1a
- Control capacity: 24 VDC, 0.5 A
Analog Input1 ch
OPA365 is used as a non-inverting buffer for ADC		Common-mode voltage range：min 0.1 V, max 3.2V@3.3 V
Reset SW1 ch
User SW1 ch
USBUSB 2.0 Full Speed compatible
4.75 V - 5.25 V		- 2 A@5 V recommended
- USB Type-C™ compliant connector
3.3V Output1 chCurrent Limit: 0.5A
Operating Temperature Conditions0 ℃ - 50 ℃1
Storage Temperature Conditions0 ℃ - 50 ℃
Size66.5 mm x 72.5 mm x 17.2 mm


External Dimensions


Interfaces


I2C for Module

Pin No.Signal nameNotes
1+3.3V
2GNDGround
3NODE1_I2C_SDA
4NODE1_I2C_SCL
5NODE1_I2C_INT_Module
6ReservedNot connect

Block diagram


I2C for Long cable

Pin No.Signal nameNotes
1+5V
2NODE1_I2C_SDA
3GNDGround
4NODE1_I2C_SCL
5GNDGround
6NODE1_I2C_INT_Long
7GNDGround
8ReservedNot connect

Block diagram


I2C for Short cable

Pin No.Signal nameNotes
1+3.3VI2C for short cable
2GNDGround
3NODE1_I2C_SDA
4NODE1_I2C_SCL
5NODE1_I2C_INT_Short
6ReservedNot connect

Block diagram


Interrupt

The each NODE1_I2C_INT signal output to I2C Expander must be active low and open drain output.
The interrupt signal output signal of I2C Expander (NODE1_IO0) is active low and open drain output.


MOS Relay

Pin No.Signal nameNotes
1NODE1_RELAY_OUT1
2NODE1_RELAY_OUT2

Block diagram


Photo coupler

Pin No.Signal nameNotes
1NODE1_PhotoMOS_IN1
2NODE1_PhotoMOS_IN2

Block diagram


UART

Pin No.Signal nameNotes
1+3.3VFor UART
2GNDGround
3NODE1_UART_TXneqto: output
4NODE1_UART_RXneqto: input
5NODE1_UART_RTSneqto: output
6NODE1_UART_CTSneqto: input
7ReservedNot connect
8ReservedNot connect

Block diagram


ADC

Pin No.Signal nameNotes
1ReservedNot connect
2GNDGround
3ANALOG_Input1ADC input
4GNDGround

Block diagram


GPIO

Pin No.Signal nameNotes
1NODE1_IO5
2GNDGround
3NODE1_IO6
4GNDGround

Block diagram


Dry Battery

Pin No.Signal nameNote
1+ Voltage for Dry BatteryInput voltage : 3.0V - 5.0V
2- Voltage for Dry Battery


3.3V output

Pin No.Signal nameNotes
1+3.3V
2GNDGround


Interface specifications

ItemSpecNotes
Low Level Input Voltage 1Max 0.3 V@VDDSEL = 3.3 V(Note 1)UART / GPIO
Low Level Input Voltage 2Max 0.9 V@VDDSEL = 3.3 V(Note 1)I2C for Module
Low Level Input Voltage 3Max 2 V@VDDSEL = 5.0 V(Note 1)I2C for Long cable
Low Level Input Voltage 4Max 0.15 V@VDDSEL = 3.3 V(Note 1)I2C for Short cable
High Level Input Voltage 1Min 0.7 V@VDDSEL = 3.3 V(Note 1)UART / GPIO
High Level Input Voltage 2Min 2.4 V@VDDSEL = 3.3 V(Note 1)I2C for Module
High Level Input Voltage 3Min 2.8 V@VDDSEL = 5.0 V(Note 1)I2C for Long cable
High Level Input Voltage 4Min 2.9 V@VDDSEL = 3.3 V(Note 1)I2C for Short cable
Low Level Output Voltage 1Max 0.4 V@IOL = 20 μA
VDDSEL = 3.3 V(Note 1)		UART / GPIO
Low Level Output Voltage 2Max 0.5 V@IOL = 4 mA
VDDSEL = 3.3 V(Note 1)		I2C for Module
Low Level Output Voltage 3Max 0.4 V@IOL = 1 mA
VDDSEL = 3.3 V(Note 1)		I2C for Short cable
High Level Output Voltage 1Min 2.9 V@IOH = 20 μA
VDDSEL = 3.3 V(Note 1)		UART / GPIO
High Level Output Voltage 2Min 2.8 V@IOH = 4 mA
VDDSEL = 3.3 V(Note 1)		I2C for Module
High Level Output Voltage 3Min 2.2 V@IOH = 20 μA
VDDSEL = 3.3 V(Note 1)		I2C for Short cable
Output Voltageopen-collector
Max 5 V 330 Ω pull-up		I2C for Long cable

Note 1) VDDSEL When 3.3V is selected: It is supplied from RP601Z330A.
The output deviation of RP601Z330A in the PWM / VFM automatic switching method is 3.3 V -2% + 4%.

When 5V is selected: Supplied by VBUS.
The output deviation is 5.0 V ± 5%.


Connector list

FunctionNumberPartsNumberMakerSocketCrimp terminalMaker
UARTCN7DF11-8DP-20DSHirose ElectricDF11-8DS-2CDF11-2428SCAHirose Electric
I2C for ModuleCN3FSS-41035-06Hirosugi-KeikiPSS-410153-06-Hirosugi keiki
I2C for Long cableCN5DF50A-8P-1HHirose ElectricDF50A-8S-1CDF50-2830SCFAHirose Electric
I2C for Short cableCN4DF11-6DP-20DSHirose ElectricDF11-6DS-2CDF11-2328SCAHirose Electric
GPIOCN81770908Phoenix Contact
Photo coupler inputCN121770885Phoenix Contact
MOS Relay outputCN111770885Phoenix Contact
Analog inputCN91770908Phoenix Contact
3.3 V outputCN131770885Phoenix Contact
Dry BatteryCN381814498Phoenix Contact
BatteryCN411814508Phoenix Contact
neqto: Bridge ModuleCN1, CN2FSS-22043-13Hirosugi-Keiki
USBCN44CX90B1-24PHirose Electric
Updated: 2020/7/31
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