Renesas RSSKRX23E-A User Manual
All information contained in these materials, including products and product specifications,
website (http://www.renesas.com).
RSSKRX23E-A
User’s Manual
Rev.1.10 Mar 2020
32
User’ s Manual
www.renesas.com
represents information on the product at the time of publication and is subject to change by
Renesas Electronics Corp. without notice. Please review the latest information published by
Renesas Electronics Corp. through various means, including the Renesas Electronics Corp.
Corporate Headquarters
Contact information
Trademarks
Notice
1. Descriptions of circuits, software and other related information in this document are provided only to illustrate the operation of semiconductor products
and application examples. You are fully responsible for the incorporation or any other use of the circuits, softw are, and information in the design of your
product or system. Renesas Electronics disclaims any and all liability for any losses and damages incurred by you or third parties arising from the use of
these circuits, software, or information.
2. Renesas Electronics hereby expressly disclaims any warranties against and liability for infringement or any other claims involving patents, copyrights, or
other intellectual property rights of third parties, by or arising from the use of Renesas Electronics products or technical information described in this
document, including but not limited to, the product data, drawings, charts, programs, algorithms, and applicati on examples.
3. No license, express, implied or otherwise, is granted hereby under any patents, copyrights or other intellectual property rights of Renesas Electronics or
others.
4. You shall not alter, modify, copy, or reverse engineer any Renesas Electronics product, whether in whole or in part. Renesas Electronics disclaims any
and all liability for any losses or dam ages incurred by you or third parties arising from such alteration, modification, copying or reverse engineering.
5. Renesas Electronics products are classified according to the following two quality grades: “Standard” and “High Quality”. The intended applications for
each Renesas Electronics product depends on the product’s quality grade, as indicated below.
"Standard": Computers; office equipment; communications equipment; test and measurement equipment; audio and visual equipment; home
"High Quality": Transportation equipment (automobiles, trains, ships, etc.); traffic control (traffic lights); large-scale communication equipment; key
Unless expressly designated as a high reliability product or a product for harsh environments in a Renesas Electronics data sheet or other Renesas
Electronics document, Renesas Electronics products are not intended or authorized for use in products or systems that may pose a direct threat to
human life or bodily injury (artificial life support devices or systems; surgical implantations; etc.), or may cause serious property damage (space system;
undersea repeaters; nuclear power control systems; aircraft control systems; key plant systems; military equipment; etc.). Renesas Electronics disclaims
any and all liability for any damages or losses incurred by you or any third parties arising from the use of any Renesas Electronics product that is
inconsistent with any Renesas Electronics data sheet, user’s manual or other Renesas Electronics document.
6. When using Renesas Electronics products, refer to the latest product information (data sheets, user’s manuals, application notes, “General Notes for
Handling and Using Semiconductor Devices” in the reliability handbook, etc.), and ensure that usage conditions are within the ranges specified by
Renesas Electronics with respect to maximum ratings, operating power supply voltage range, heat dissipation characteristics, installation, etc. Renesas
Electronics disclaims any and all liability for any malfunctions, failure or accident arising out of the use of Renesas Electronics products outside of such
specified ranges.
7. Although Renesas Electronics endeavors to improve the quality and reliability of Renesas Electronics products, semiconductor products have specific
characteristics, such as the occurrence of failure at a certain rate and malfunctions under certain use conditions. Unless designated as a high reliability
product or a product for harsh environments in a Renesas Electronics data sheet or other Renesas Electronics document, Renesas Electronics products
are not subject to radiation resistance design. You are responsible for implementing safety measures to guard against the possibility of bodily injury,
injury or damage caused by fire, and/or danger to the public in the event of a failure or malfunction of Renesas Electronics products, such as safety
design for hardware and software, including but not limited to redundancy, fire control and malfunction prevention, appropriate treatment for aging
degradation or any other appropriate measures. Because the evaluation of microcomputer software alone is very difficult and impractical, you are
responsible for evaluating the safety of the final products or systems manufactured by you.
8. Please contact a Renesas Electronics sales office for details as to environmental matters such as the environmental compatibility of each Renesas
Electronics product. You are responsible for carefully and sufficiently investigating applicable laws and regulations that regulate the inclusion or use of
controlled substances, including without limitation, the EU RoHS Directive, and using Renesas Electronics products in compliance with all these
applicable laws and regulations. Renesas Electronics disclaims any and all liability for damages or losses occurring as a result of your noncompliance
with applicable law s and regulations.
9. Renesas Electronics products and technologies shall not be used for or incorporated into any products or systems whose manufacture, use, or sale is
prohibited under any applicable domestic or foreign laws or regulations. You shall comply with any applicable export control laws and regulations
promulgated and administered by the governments of any countries asserting jurisdiction over the parties or transactions.
10. It is the responsibility of the buyer or distributor of Renesas Electronics products, or any other party who distributes, disposes of, or otherwise sells or
transfers the product to a third party, to notify such third party in advance of the contents and conditions set forth in this document.
11. This document shall not be reprinted, reproduced or duplicated in any form, in whole or in part, without prior written consent of Renesas Electronics.
12. Please contact a Renesas Electronics sales office if you have any questions regarding the information contained in this document or Renesas
Electronics products.
(Note1) “Renesas Electronics” as used in this document means Renesas Electronics Corporation and also includes its directly or indirectly controlled
(Note2) “Renesas Electronics product(s)” means any product developed or manufactured by or for Renesas Electronics.
subsidiaries.
electronic appliances; machine tools; personal electronic equipment; industrial robots; etc.
financial terminal systems; safety control equipment; etc.
(Rev.4.0-1 November 2017)
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www.renesas.com
Renesas and the Renesas logo are trademarks of Renesas
Electronics Corporation. All trademarks and registered trademarks
are the property of their respective owners.
For further information on a product, technology, the most up-to-date
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.
© 2020 Renesas Electronics Corporation. All rights reserved.
General Precautions in the Handling of Microprocessing Unit and Microcontroller Unit Products
The following usage notes are applicable to all Microprocessing unit and Microcontroller unit products from Renesas. For detailed usage notes on the products
covered by this document, refer to the relevant sections of the document as well as any technical updates that have been issued for the products.
1. Precaution against Electrostatic Discharge (ESD)
A strong electrical field, when exposed to a CMOS device, can cause destruction of the gate oxide and ultimately degrade the device operation. Steps
must be taken to stop the generation of static electricity as much as possible, and quickly dissipate it when it occurs. Environmental control must be
adequate. When it is dry, a humidifier should be used. This is recommended to avoid using insulators that can easily build up static electricity.
Semiconductor devi ces must be stored and transported in an anti-static contai ner, static shielding bag or conductive material. All test and measurement
tools including work benches and floors must be grounded. The operator must also be grounded using a wrist strap. Semiconductor devices must not be
touched with bare hands. Similar precautions must be taken for printed circuit boards with mounted semiconductor devices.
2. Processing at power-on
The state of the product is undefined at the time when power is supplied. The states of internal circuits in the LSI are indeterminate and the states of
register settings and pins are undefined at the time when power is supplied. In a finished product where the reset signal is applied to the external reset
pin, the states of pins are not guaranteed from the time when power is supplied until the reset process is completed. In a similar way, the states of pins in
a product that is reset by an on-chip power-on reset function are not guaranteed from the time when power is supplied until the power reaches the level
at which resetting is specified.
3. Input of signal during power-off state
Do not input signals or an I/O pull-up power supply while the device is powered off. The current injection that results from input of such a signal or I/O
pull-up power supply may cause malfunction and the abnormal current that passes in the device at this time may cause degradation of internal elements.
Follow the guideline for input signal during power-off state as described in your product documentation.
4. Handling of unused pins
Handle unused pins in accordance with the directions given under handling of unused pins in the manual. The input pins of CMOS products are
generally in the high-impedance state. In operation with an unused pin in the open-circuit state, extra electromagnetic noise is induced in the vicinity of
the LSI, an associated shoot-through current flows internally, and malfunctions occur due to the false recognition of the pin state as an input signal
become possible.
5. Clock signals
After applying a reset, only release the reset line after the operating clock signal becomes stable. When switching the clock signal during program
execution, wait until the target clock signal is stabilized. When the clock signal is generated with an external resonator or from an external oscillator
during a reset, ensure that the reset line is only released after full stabilization of the clock signal. Additionally, when switching to a clock signal produced
with an external resonator or by an external oscillator while program execution is in progress, wait until the target clock signal is stable.
6. Voltage application waveform at input pin
Waveform distortion due to input noise or a reflected wave may cause malfunction. If the input of the CMOS device stays in the area between V
and V
(Min.) due to noise, for example, the device may malfunction. Take care to prevent chattering noise from entering the device when the input level
IH
is fixed, and also in the transition period when the input level passes through the area between V
7. Prohibition of access to reserved addresses
Access to reserved addresses is prohibited. The reserved addresses are provided for possible future expansion of functions. Do not access these
addresses as the correct operation of the LSI is not guaranteed.
8. Differences between products
Before changing from one product to another, for example to a product with a different part number, confirm that the change will not lead to problems.
The characteristics of a microprocessing unit or microcontroller unit products in the same group but having a different part number might differ in terms of
internal memory capacity, layout pattern, and other factors, which can affect the ranges of electrical characteristics, such as characteristic values,
operating margins, immunity to noise, and amount of radiated noise. When changing to a product with a different part number, implement a system-
evaluation test for the given product.
(Max.) and VIH (Min.).
IL
(Max.)
IL
CAUTION
This is a ‘Class A’ (CISPR11:2009+A1:2010) equipment. This equipment can
cause radio frequency noise when used in the residential area. In such cases,
the user/operator of the equipment may be required to take appropriate
countermeasures under his responsibility.
CAUTION
This equipment should be handled like a CMOS semiconductor device. The
user must take all precautions to avoid build-up of static electricity while working
with this equipment. All test and measurement tool including the workbench
must be grounded. The user/operator must be grounded using the wrist strap.
The connectors and/or device pins should not be touched with bare hands.
European Union Regulatory Notices:
The WEEE (Waste Electrical and Electronic Equipment)
regulations put responsibilities on producers for the collection
and recycling or disposal of electrical and electronic waste.
Return of WEEE under these regulations is applicable in the
European Union only. This equipment (including all
accessories) is not intended for household use. After use the
equipment cannot be disposed of as household waste, and the
WEEE must be treated, recycled and disposed of in an
environmentally sound manner. Renesas Electronics Europe
GmbH can take back end of life equipment, register for this
service at http://www.renesas.eu/weee
Disclaimer
By using this Renesas Solution Starter Kit (RSSK), the user accepts the following terms:
The RSSK is not guaranteed to be error free, and the entire risk as to the results and performance of the RSSK is
assumed by the User. The RSSK is provided by Renesas on an “as is” basis without warranty of any kind whether
express or implied, including but not limited to the implied warranties of satisfactory quality, fitness for a particular
purpose, title and non-infringement of intellectual property rights with regard to the RSSK. Renesas expressly
disclaims all such warranties. Renesas or its affiliates shall in no event be liable for any loss of profit, loss of data,
loss of contract, loss of business, damage to reputation or goodwill, any economic loss, any reprogramming or
recall costs (whether the foregoing losses are direct or indirect) nor shall Renesas or its affiliates be liable for any
other direct or indirect special, incidental or consequential damages arising out of or in relation to the use of this
RSSK, even if Renesas or its affiliates have been advised of the possibility of such damages.
Precautions
The following precautions should be observed when operating this RSSK:
This RSSK is only intended for use in a laboratory environment under ambient temperature and humidity
conditions. A safe separation distance should be used between this and any sensitive equipment. Its use outside
the laboratory, classroom, study area or similar such area invalidates conformity with the protection requirements of
the Electromagnetic Compatibility Directive and could lead to prosecution.
The product generates, uses, and can radiate radio frequency energy and may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular installation. If this
equipment causes harmful interference to radio or television reception, which can be determined by turning the
equipment off or on, you are encouraged to try to correct the interference by one or more of the following measures;
• ensure attached cables do not lie across the equipment
• reorient the receiving antenna
• increase the distance between the equipment and the receiver
• connect the equipment into an outlet on a circuit different from that which the receiver is connected
• power down the equipment when not in use
• consult the dealer or an experienced radio/TV technician for help NOTE: It is recommended that wherever
possible shielded interface cables are used.
The product is potentially susceptible to certain EMC phenomena. To mitigate against them it is recommended that
the following measures be undertaken;
• The user is advised to use the cable that is less than 3m in length to be connected to the product
• The user is advised that mobile phones should not be used within 10m of the product when in use.
• The user is advised to take ESD precautions when handling the equipment.
The RSSK does not represent an ideal reference design for an end product and does not fulfil the regulatory
standards for an end product.
How to Use This Manual
within the body of the text, at the end of each section, and in the Usage Notes section.
the manual for details.
User's Manual
Explanation of the RSSKRX23E-A
RSSKRX23E-A
Quick Start Guide
Provides simple instructions to setup
RSSKRX23E-A
R20QS0007EJ0100
User's Manual: Hardware
Explanation of RX23E-A hardware
RX23E-A Group User's
R01UH0801EJ0100
1. Purpose and Target Readers
This manual is provided to help the users understand the outline and electrical characteristics of the board of
Renesas Solution Starter Kit for RX23E-A (called “RSSKRX23E-A board” or “the board” below)
Although this manual contains an overview of the RSSKRX23E-A board functions, it is not written as a built-in
programming or hardware design guide.
Particular attention should be paid to the precautionary notes when using RSSKRX23E-A board. These notes occur
The revision history summarizes the locations of revisions and additions. It does not list all revisions. Refer to the text of
or Renesas Solution Starter Kit for RX23E-A the following documents are available. The newest versions of
F
the documents listed may be obtained from the Renesas Electronics Web site.
Document Type Description Document Title Document No.
R20UT4542EJ0110
board hardware specifications
the RSSKRX23E-A board and run PC
tool program
PC Tool Program Explanation of PC tool program that
communicates with the RSSKRX23E-A
board,
sets the AFE/DSAD of RX23E-A, and
obtains A/D conversion values
or specifications of RX23E-A: R5F523E6ADFL mounted on the board, the following documents are
F
User's Manual
Quick Start Guide
RSSKRX23E-A
PC Tool Program
Operation Manual
(this document)
R20AN0540EJ0110
available. The newest versions of the documents listed may be obtained from the Renesas Electronics Web
site.
specifications (pin layout, memory map,
peripheral function specifications,
electrical characteristics, and timing)
and operation
* For details on how to use peripheral
functions, refer to "Application Notes".
Manual: Hardware
2. For Your Safety
Do not fail to read this manual before using the board
• Follow the indications in this manual when using the board
• Keep this manual near the board so you can refer to it whenever necessary.
• Transfer or sale of the board to third parties is prohibited without written approval.
• The purchaser or importer of the board is responsible for ensuring compliance with local regulations.
In addition, the customer is responsible for ensuring that the board is handled correctly and safely, in
accordance with the laws of the customer’s country (region).
• The manual for the board, and specification (the documents) are the tool that was developed for
the function and performance evaluation of Renesas Electronics semiconductor device (Renesas Electronics
device) mounted on the board, and not guarantee the same quality, function and performance.
• By purchasing the board or downloading the documents from Renesas Electronics website, the support
services provided from Renesas Electronics is not guaranteed.
• All information contained in this manual represents information on products at the time of publication
of this manual. Please note that the product data, specification, sales offices, contents of website, address,
etc., are subject to change by Renesas Electronics Corporation without notice due to product improvements
or other reasons. Please confirm the latest information on Renesas Electronics website.
Meaning of Notations
is not specified.
static electricity
In this manual, items related to the safe use of the product are indicated as described below.
The degree of injury to persons or damage to property that could result if the designated content in this
manual is not followed is indicated as follows.
Warning
Caution
Note 1. Injury refers to conditions for which treatment would necessitate hospitalization or regular hospital
visits.
Note 2. Physical damage refers to damage affecting the wider surroundings, such as the user’s home or
property.
Requirements related to the handling of the product are classified into the following categories.
• Marks indicating that an action is prohibited.
General Prohibition
The indicated action is prohibited.
• Marks indicating that an action is alerted
General Caution
Indicates a general need for caution that
Indicates content that, if not followed, could result in death or serious injury to
the user.
Indicates content that, if not followed, could result in injury*1 to persons or
physical damage.*2
Example: Caution - Static Electricity!
Indicates the possibility of injury due to
• Marks directing that the specified action is required.
General Instruction
The specified action is required.
Example:
Turn Off (Disconnect) Power Supply!
Instructs the user to turn off (disconnect)
the power supply to the product.
Warnings Regarding Use of the Product
Always insert plugs, connectors, and cables securely, and confirm that they are fully
• Incomplete connections could cause fire, burns, electric shock, or injury.
•
Disconnect the power supply and unplug all cables when the system will not be used for a
•
• This will protect the system against damage due to lightning.
Use a mechanism (switch, outlet, etc.) located within reach to turn off (disconnect) the power
• In case of emergency, it may be necessary to cut off the power supply quickly.
•
shock.
•
•
• The product may not perform as expected if used for other than its intended purpose.
Incorrect modification or retrofitting may cause heat generation and device failures.
• Failure to do so could cause overheating or malfunction.
• Failure to do so could cause device failures or malfunction by external noise.
•
Danger Items
Warning
inserted.
Use the power supply apparatus specified in the manual.
Failure to do so could cause fire, burns, electric shock, injury, or malfunction.
period of time or when moving the system.
Failure to do so could cause fire, burns, electric shock, or malfunction.
supply.
Turn off the power supply immediately if you notice abnormal odor, smoke, abnormal sound,
or overheating.
Continuing to use the system in an abnormal condition could cause fire, burns, or electric
Do not integrate the product or any part of it into other equipment.
Do not insert or remove cables or connectors when the product is powered on.
The product has no safety case.
Failure to observe the above could cause fire, electric shock, burns, or malfunction.
Caution Items
Before modifying any part of this product, carefully check the manual.
•
Follow the procedure specified in the manual when powering the system on or off.
Use the cable that is less than 3m in length to be connected to the product.
Caution
Caution – Static Electricity
Use the antistatic band. Failure to do so could cause malfunction or unstable motion.
3.List of Abbreviations and Acronyms
Abbreviation
Full Form / Description
ADC
Analog to Digital Converter
AFE
Analog Front End
AMUX
Analog Multiplexer
BUF
Buffer Amplifier
CAN
Controller Area Network
CPU
Central Processing Unit
DSAD
Delta-Sigma Analog-to-Digital Converter
E2 Lite
Renesas On-chip Debugging Emulator
FW
Firmware
GUI
Graphical User Interface
I2C (IIC)
Philips™ Inter-Integrated Circuit Connection Bus
I/F
Interface
LDO
Low Dropout regulator
LED
Light Emitting Diode
LSW
Low Side Switch
MCU
Micro Controller Unit
NM
Not Mounted
PC
Personal Computer
PGA
Programmable Gain Amplifier
PROFIBUS DP
PROFIBUS Decentralized Peripherals
PWM
Pulse Width Modulation
RAM
Random Access Memory
ROM
Read Only Memory
RS-485
Recommended Standard 485
RTD
Resistance Temperature Detector
SARADC
Successive-Approximation-Register Analog-to-Digital Converter
SCI
Serial Communications Interface
SPI
Serial Peripheral Interface
UART
Universal Asynchronous Receiver/Transmitter
UM
User’s Manual
USB
Universal Serial Bus
All trademarks and registered trademarks are the property of their respective owners.
Table of Contents
1.
Overview ........................................................................................................................................................ 1
1.1 Purpose ............................................................................................................................................................. 1
1.2 Mounted MCU ................................................................................................................................................... 1
1.3 Functions and Features .................................................................................................................................. 2
1.4 Specifications .................................................................................................................................................... 3
1.5 System Block Diagram .................................................................................................................................... 4
1.6 Overview and Layout ....................................................................................................................................... 5
2. Using the RSSKRX23E-A Board ................................................................................................................... 6
2.1 Operating Conditions ....................................................................................................................................... 6
2.2 Selecting Power Supplies ............................................................................................................................... 7
2.3 Connecting a PC to the Board ....................................................................................................................... 8
2.4 Using the Analog Input Circuit ........................................................................................................................ 9
2.4.1 Overview of the Analog Input Circuit .................................................................................................... 9
2.4.2 DSAD Measurement Circuit ................................................................................................................ 11
2.4.3 Thermocouple Measurement Circuit .................................................................................................. 12
2.4.4 Reference Junction Compensation Circuit Using the On-Board RTD .......................................... 13
2.4.5 Four-Wire RTD Measurement Circuit................................................................................................. 14
2.4.6 Three-Wire RTD Measurement Circuit .............................................................................................. 15
2.4.7 Strain Gage Measurement Circuit ...................................................................................................... 16
2.4.8 Handling Unused Pins in the Analog Input Circuit ........................................................................... 18
3. Microcontroller Peripheral Circuits .............................................................................................................. 19
3.1 USB Serial Communication Circuit .............................................................................................................. 19
3.2 Emulator Peripheral Circuit ........................................................................................................................... 20
3.3 RS-485 Communication Circuit .................................................................................................................... 21
3.4 CAN Communication Circuit ......................................................................................................................... 21
3.5 LED Circuit ...................................................................................................................................................... 22
3.6 Switch Input Circuit ........................................................................................................................................ 22
3.7 External Clock Input Circuit .......................................................................................................................... 23
4. Board Information ........................................................................................................................................ 24
4.1 Using Terminal Blocks ................................................................................................................................... 24
4.2 Connectors ...................................................................................................................................................... 25
4.3 Pin Headers for Communication Interfaces ............................................................................................... 29
4.4 Jumper Pins .................................................................................................................................................... 30
4.5 Universal Through-Holes .............................................................................................................................. 33
4.6 Through-Hole Taps ........................................................................................................................................ 36
4.7 Test Points ...................................................................................................................................................... 36
4.8 Short Pads....................................................................................................................................................... 37
4.9 Initial Settings of MCU Pins .......................................................................................................................... 38
Appendix ................................................................................................................................................................ i
Appendix 1. Board Diagrams ........................................................................................................................................ i
Appendix 2. Circuit Diagram ........................................................................................................................................ iv
Appendix 3. Parts List ................................................................................................................................................... vi
RSSKRX23E-A
MCU model name
R5F523E6ADFL
Number of bits
32
ROM
256 KB
Operating temperature range
-40 to +85°C
Renesas Solution Starter Kit for RX23E-A
1. Overview
1.1 Purpose
The board of Renesas Solution Starter Kit for RX23E-A (called “RSSKRX23E-A board” or “the board” below)
is an evaluation tool for the Renesas microcontroller RX23E-A. This manual describes the hardware aspect of
the RSSKRX23E-A board in detail. The manual also describes how to connect the board to a PC and sensors
for evaluation.
1.2 Mounted MCU
Table 1-1 lists the specifications of the MCU mounted on the board. The RX23E-A MCU mounted on the
board contains two low-noise 24-bit ∆-Σ A/D converters (DSADs). A DSAD contains a programmable gain
instrumentation amplifier (PGA). The gain can be selected from x1, x2, x4, x8, x16, x32, x64, and x128. It also
contains an analog front-end (AFE) circuit suitable for measuring sensors such as a thermocouple, RTD, and
strain gage. Up to 6 channels of measurement can be performed by switching the analog multiplexer (AMUX)
in the AFE.
For details on the MCU operating conditions, and DSAD and AFE settings, refer to “RX23E-A Group User's
Manual: Hardware”.
Table 1-1 Mounted MCU
Product group RX23E-A
Maximum CPU operating frequency 32 MHz
Package/number of pins LFQFP/48
RAM 32 KB
Storage temperature range -55 to +125°C
R20UT4542EJ0110 Rev.1.10 Page 1 of 39
Mar.30.20
RSSKRX23E-A 1. Overview
1.3 Functions and Features
The board has the following functions and features.
(1) Functions and features for hardware and system design engineers
• A/D converter evaluation circuit
• Thermocouple measurement circuit
• Resistance temperature detector (RTD) measurement circuit
• Strain gage measurement circuit
• Power supply selection circuit
• FW controlling DSAD and AFE operation
• Transmission of measurement results and reception of AFE settings using USB communication
(2) Functions and features for software design engineers
• RX23E-A programming and debugging
• Switches, LEDs, and other user interfaces
The board has all circuits required for microcontroller operation.
R20UT4542EJ0110 Rev.1.10 Page 2 of 39
Mar.30.20
RSSKRX23E-A 1. Overview
1.4 Specifications
Table 1-2 Specifications of the RSSKRX23E-A Board
Item Specification
Board model name RTK0ESXB10C00001BJ
MCU input clock 8-MHz external crystal oscillator
Applicable emulator E1, E2, and E2 Lite
Power input terminal block
Signal input terminal block CN2: Signal input terminal block (13-pin)
Analog power output terminal block CN1: Analog power output terminal block (2-pin)
Thermocouple connector CN3: Miniature thermocouple socket (2-pin) Material: copper-copper
Emulator connector CN7: 14-pin interface connector
On-board RTD Pt100 Class F0.3 (Class B) Model: PTS060301B100RP100
Connector CN6: USB serial communication connector USB mini-B
Driver U3: FT232RL
Connector J6: Pin header (3-pin 2.54mm pitch)
Driver U5: R2A25416SP
Connector J7: Pin header (3-pin 2.54mm pitch)
Driver ISL3159EFUZ
Communication
interfaces
On-board LDO
USB
CAN
RS-485
Model ISL80410IBEZ
Device specifications
CN4: System power input terminal block (2-pin)
CN5: Analog power input terminal block (2-pin)
Operating voltage range: 6 to 40 V (Note)
Output setting: 5 V (2.5 to 12 V variable output)
User interfaces
LEDs
Switches SW1: User switch SW2: External MCU reset switch
Universal through-holes
Board outline 120mm x 92mm
Operating temperature Room temperature
Operating humidity No condensation allowed
Note When the on-board LDO is used, the operating voltage range of this product is 6.5 to 12 V due to limitations of
peripheral components.
LED2: Power LED (VCC) Color: Green
LED1: User LED (PH2) Color: Red
2.54-mm pitch
J1: 4-pin through holes
J2: 12-pin through holes
J3, J4: 10-pin through holes
R20UT4542EJ0110 Rev.1.10 Page 3 of 39
Mar.30.20
RSSKRX23E-A 1. Overview
RX23E-A
USB
mini B
Terminal
Bloc ks
USB
Se ri al
Conv erter
Crystal
Oscill ator
RX23E-A RSSK
The rmo coupl e
Connector
Em ula tor
Con nect or
User ’s
Swi tch
RESET
Swi tch
Passive
Filters
and
Sens or
Selection
Circuit s
Analog Plane Dig ital P la ne
Terminal
Bloc ks
User ’s
LED
Terminal
Bloc ks
Pin
Head ers
USB S erial
Comm unica tion
Analo g Power
Suppl y
Va
5V
LDO
AVCC0
VCC
CAN
Driv er
VLD O
Vd Vbus
UART Commun ication
Terminal
Bloc ks
VCC
E1, E2, E2 Lite
RS-485
Driv er
CAN C ommun icatio n
JP1 4
TXD1 R XD1 #RTS 1
Th ro ugh
Hole s
Th ro ugh
Hole s
Powe r
LED
MD/FI NED #RE S
Si gnals
Pin
Head ers
TXD1 RXD1
CTXD0 CRXD0
CTXD CRXD
Terminal
AV SS0
AVCC0
LSW
Analo g
Si gnals
Analo g
Si gnals
Analo g
Si gnals
Exciting Voltage
Out put
Sens ors
Ther moco uple
Vd
Sy st e m Po w er
Suppl y
Vbus
JP1 5
RS-485
Comm unica tion
Shiel d wire
Analo g Signal
Refe rence Voltage
AVCC0
Va
Univ ersa l
Th ro ugh
Hole s
CN1
CN2
CN3
CN5 CN4
U2
J1
J5
TH1
U1
Y1
J2, J3, J4
SW1
SW2
CN7
U4
U5
U3
J6
J7
CN6
1.5 System Block Diagram
Figure 1-1 RSSKRX23E-A Board System Block Diagram
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RSSKRX23E-A 1. Overview
1.6 Overview and Layout
Figure 1-2 Overview of the RSSKRX23E-A Board (Front Side)
Figure 1-3 Overview of the RSSKRX23E-A Board (Back Side)
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RSSKRX23E-A 2. Using the RSSKRX23E-A Board
When analog and digital power
CN2
CN2
2. Using the RSSKRX23E-A Board
2.1 Operating Conditions
Table 2-1 lists the recommended operating conditions of the board.
Observe the recommended operating conditions when using the board. The use of the board without
observing any recommended operating condition may cause unpredictable operation. The use of the
board without observing any maximum rating may cause a failure or damage to the board.
Table 2-1 Recommended Operating Conditions
Condition: VSS = AVSS0 = 0 V
Recommended
Item Symbol Input pin
Vd
System
power
supply
Analog
power
supply
Digital pin VIN See Section 4.5. -0.3 to VCC + 0.3 Absolute maximum rating
Analog pin V
LSW pin I
Note 1. Operation of USB serial communication, CAN communication, and RS-485 communication are guaranteed
Note 2. Although the operating voltage of the LDO (ISL80410) is 6 to 40 V, the recommended LDO operating range
Note 3. Supply the power to VCC and AVCC0 simultaneously or sequentially in this order.
Note 4. The R0N pin is connected to the LSW pin when pins 3 and 4 of JP7 are connected.
Note 5. When pins 1 and 2 are connected, Vd is directly connected to VCC.
(VCC)
CN4
Vd
AVCC0 CN5
AIN
LSW
only in condition of inside recommended operating range (4.5~5.25V). RX23E-A can operate at 1.8 to 5.5 V.
on the board is 6.5 to 12 V, considering the capacitor rated voltage, power line voltage drop, and heat
generation of the LDO.
When pins 5 and 6 are connected, VBUS (USB power supply) is connected to VCC.
(R0P, R0N, 0~9)
CN3
(AN10, AN11)
(LSW, R0N (Note 4))
operating
range
4.5 to 5.25 V
(Note 1)
6.5 to 12 V
(Note 2)
2.7 to 5.5 V
(Note 3)
-0.3 to AVCC0 + 0.3 Absolute maximum rating
－ 30 mA When the LSW is switched ON
Maximum
rating
6.0 V
20 V
6.5 V
Condition
When the LDO is not used
(when pins 1-2 or 5-6 of JP14
are connected) (Note 5)
When the LDO is used (when
pins 5-6 of JP14 are connected)
supplies are separated (when
pins 1-2 of JP14 are connected)
and VCC > 2.7 V
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