DS18B20EVSYS1#

Click here for production status of specific part numbers. DS18B20 Evaluation System General Description The DS18B20 evaluation system (EV system) demonstrates the DS18B20 1-wire thermometer. The DS18B20 EV system consists of the DS18B20 evaluation kit (EV kit) and the USB2PMB2 adapter board. Windows XP® and Windows® 7/8/8.1/10 compatible software provides a user-friendly interface that demonstrates the features of the DS18B20. The DS18B20 EV system comes with the 8-pin µSOP DS18B20U+ installed. Features ●● 6-Pin Pmod™-Compatible Connector ●● Proven PCB Layout ●● Fully Assembled and Tested ●● Windows XP, Windows 7/8/8.1/10-Compatible Software DS18B20 EV System Photo Windows and Windows XP are registered trademarks and registered service marks of Microsoft Corporation. Pmod is a trademark of Digilent Inc. 319-100315; Rev 0; 2/19 Evaluates: DS18B20 Quick Start Required Equipment ●● DS18B20 EV System (includes USB cable) ●● Windows PC Note: In the following sections, software-related items are identified by bolding.Text in bold refers to items directly from the EV system software. Text in bold and underlined refers to items from the Windows operating system. Ordering Information appears at end of data sheet. DS18B20 Evaluation System Procedure The EV system is fully assembled and tested. Follow the steps below to verify board operation: 1. Install the DS18B20GUISetup.msi software on your computer. 2. Align the X2 connector (top row) of the USB2PMB2 with the J1 connector of the DS18B20 EV system. 3. Verify that the shunts are in the default position as shown in Table 1. 4. Connect the USB cable from the PC to the USB2PMB2 board. 5. Open the EV system GUI, DS18B20EVKit.exe (Figure 1). 6. Click the Scan Adapters button. Then select the option PMODxxxxxx (where xxxxxx is numeric) and click the Connect button. 7. Select the desired SCL clock frequency and click the Set SCL button. 8. Select an address from the Set Address dropdown list and click the button to the right. 9. Click the Search button and verify appropriate address was found. 10. Start evaluating the DS18B20 by clicking on the Sample Continuously button. General Description of Software The main window of the DS18B20 EV system software contains controls to evaluate the DS18B20 IC. Table 1. Jumper Descriptions JUMPER SHUNT POSITION J2 J3 J4 J5 J6 Not installed Installed* Evaluates: DS18B20 Configuration The configuration dropdown list allows the user to select the conversion resolution. Use the Resolution drop down list to select between 9-, 10-, 11-, and 12-bits resolution. With each resolution, the user can set the desired sampling rate using the options in the Conversion Time dropdown list. Address The DS2482’s I2C slave address is determined by the logic states of the AD_ pins. The GUI allows controlling the states of the A_ pins by selecting the appropriate checkboxes and setting the appropriate bits in the control byte of the I2C command. Make sure the shunts are installed in the 1-3 position of jumpers J5 and J6. All other shunt options on jumpers J5 and J6 would set the logic levels to low or high. ROM Within the ROM Commands groupbox, the controls include Search ROM, read ROM, match ROM, skip ROM, and alarm search. Commands Within the Command groupbox, the controls include temperature readings, write scratchpad, read scratchpad, copy scratchpad, recall E2, and read power supply. The Read Scratchpad button will update the TH (Temperature High), TL (Temperature Low), and Configuration fields. The Copy Scratchpad button will transfer the current data on the scratchpad to the EEPROM. The Recall E2 button recalls the data stored on the EEPROM. Click Read Scratchpad to retrieve EEPROM data and the appropriate fields will update. DESCRIPTION Disconnects J1-4 from SCL of the DS2482. External 1-wire option only. Connects J1-4 to SCL of the DS2482. External I2C option only. 1-2* Connects J1-3 to SDA pin of the DS2482. External I2C option only. 1-3 Connects J1-3 to DQ pin of the DS18B20. External 1-wire option only. Not installed* Installed Disconnects IO pin of the DS2482 from DQ pin of the DS18B20. External 1-wire option only. Connects IO pin of the DS2482 to DQ pin of the DS18B20. External I2C option only. 1-2 Connects AD0 address pin of the DS2482 to VDD. 1-3* Controls AD0 address pin of the DS2482 through GUI. 1-4 Connects AD0 address pin of the DS2482 to GND. 1-2 Connects AD1 address pin of the DS2482 to VDD. 1-3* Controls AD1 address pin of the DS2482 through GUI. 1-4 Connects AD1 address pin of the DS2482 to GND. *Default Position www.maximintegrated.com Maxim Integrated │  2 DS18B20 Evaluation System Temperature The hexadecimal code and the converted temperature are displayed within the Temperature groupbox. General Description of Hardware The DS18B20 EV system demonstrates the DS18B20, high-precision digital thermometer and thermostat. The USB2PMB2 module and the EV system complete the system. The DS2482 acts as the 1-Wire master for the DS18B20 and as an I2C slave for the USB2PMB2. User-Supplied I2C and I/O To evaluate the EV system with a user-supplied I2C bus, the connector J1 is a Pmod-compatible connector. If the master does not have a Pmod-compatible connector, then make connection directly to the SCL, SDA, AD0, and AD1 Evaluates: DS18B20 test points. Make sure the return ground is the same as the DS2482. Please refer to Table 1 for jumper position. User-Supplied 1-Wire To evaluate the EV system with a user-supplied 1-wire bus, the connector J1 is a Pmod-compatible connector. If the master does not have a Pmod-compatible connector, then make connection directly to the DQ test points. Make sure the return ground is the same as the DS18B20. Please refer to Table 1 for jumper position. User-Supplied VDD The DS18B20 and DS2482 are powered through USB by default when a Pmod -compatible master module is connected to the J1 connector of the EV system. If a user-supplied VDD is used, a Pmod master module is not allowed on the J1 connector. In this case, apply a voltage between +2.7V and +5.5V at the VDD test point. Figure 1. DS18B20 EV System Main Window Ordering Information PART TYPE DS18B20EVSYS1# EV System DS18B20EVKIT# USB2PMB2# EV Kit Adapter Board #Denotes RoHS compliant. www.maximintegrated.com Maxim Integrated │  3 DS18B20 Evaluation System Evaluates: DS18B20 DS18B20 EV System Bill of Materials ITEM QTY REF DES MFG PART # MANUFACTURER VALUE 1 5 DQ, AD0, AD1, SCL, SDA 2 2 C1, C2 3 1 GND 4 1 J1 TSW-106-08-S-S-RA SAMTEC TSW-106-08-S-S-RA 5 2 J2, J4 PCC02SAAN SULLINS PCC02SAAN 6 1 J3 PCC03SAAN SULLINS PCC03SAAN 7 2 J5, J6 PEC04SAAN SULLINS ELECTRONICS CORP. PEC04SAAN 8 3 R1-R3 CRCW06034K70FK VISHAY DALE 4.7K 9 5 SU1-SU5 STC02SYAN SULLINS ELECTRONICS CORP. STC02SYAN 10 1 U1 DS18B20U MAXIM DS18B20U 11 1 U2 DS2482S-100+ MAXIM DS2482S-100+ 12 1 VDD 13 1 TOTAL 26 5007 KEYSTONE GCJ188R71H104KA12; GCM188R71H104K; CGA3E2X7R1H104K080AE MURATA; TDK 5006 KEYSTONE 5005 KEYSTONE EPCBDS18B20 MAXDS18B20 PACKOUT (These are purchased parts but not assembled on PCB and will be shipped with PCB) ITEM QTY REF DES MFG PART # MANUFACTURER 1 1 PACKOUT 88-00711-SML N/A N/A 0.1UF N/A N/A MAXIM ? 2 1 PACKOUT 87-02162-00 N/A ? 3 4 5 TOTAL 1 1 1 5 PACKOUT PACKOUT PACKOUT 85-MAXKIT-PNK EVINSERT 85-84003-006 N/A N/A N/A ? ? ? www.maximintegrated.com VALUE DESCRIPTION TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.35IN; BOARD HOLE=0.063IN; WHITE; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH; RECOMMENDED FOR BOARD THICKNESS=0.062IN; NOT FOR COLD TEST CAPACITOR; SMT (0603); CERAMIC CHIP; 0.1UF; 50V; TOL=10%; TG=-55 DEGC TO +125 DEGC; TC=X7R; AUTO TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.35IN; BOARD HOLE=0.063IN; BLACK; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH; RECOMMENDED FOR BOARD THICKNESS=0.062IN; NOT FOR COLD TEST CONNECTOR; MALE; THROUGH HOLE; 0.025 INCH SQUARE POST HEADER; RIGHT ANGLE; 6PINS CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT THROUGH; 2PINS; -65 DEGC TO +125 DEGC CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT THROUGH; 3PINS; -65 DEGC TO +125 DEGC CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT; 4PINS RESISTOR; 0603; 4.7K; 1%; 100PPM; 0.10W; THICK FILM TEST POINT; JUMPER; STR; TOTAL LENGTH=0.256IN; BLACK; INSULATION=PBT CONTACT=PHOSPHOR BRONZE; COPPER PLATED TIN OVERALL IC; DTHM; PROGRAMMABLE RESOLUTION 1-WIRE DIGITAL THERMOMETER; USOP8 IC; INFC; SINGLE-CHANNEL 1-WIRE MASTER; NSOIC8 TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.35IN; BOARD HOLE=0.063IN; RED; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH; RECOMMENDED FOR BOARD THICKNESS=0.062IN PCB DESCRIPTION BOX;SMALL BROWN 9 3/16X7X1 1/4 - PACKOUT ESD BAG;BAG;STATIC SHIELD ZIP 4inX6in;W/ESD LOGO - PACKOUT PINK FOAM;FOAM;ANTI-STATIC PE 12inX12inX5MM - PACKOUT WEB INSTRUCTIONS FOR MAXIM DATA SHEET LABEL(EV KIT BOX) - PACKOUT Maxim Integrated │  4 J2-1 1 6 5 4 3 2 1 J2 2 4.7K R1 VDD J5-3 J6-3 J2-1 J3-2 GND VDD SCL 0.1UF C2 VDD IO J3-2 SCL IO 1 VCC IO GND SCL 1 2 3 4 J4 U2 2 2 6 5 SDA J3 7 AD1 PCTLZ 4.7K R2 VDD 8 AD0 DS2482S-100+ 1 www.maximintegrated.com 3 J1 TSW-106-08-S-S-RA 4.7K R3 VDD DQ SDA AD1 AD0 SDA AD0 DQ 1 4 2 3 1 4 3 VDD 2 0.1UF C1 VDD J6 AD1 8 VDD J5-3 4 DQ VDD GND U1 DS18B20U J5 1 J6-3 DS18B20 Evaluation System Evaluates: DS18B20 DS18B20 EV System Schematic Maxim Integrated │  5 DS18B20 Evaluation System Evaluates: DS18B20 DS18B20 EV System PCB Layout DS18B20 EV System—Top Silkscreen DS18B20 EV System—Top DS18B20 EV System—Bottom DS18B20 EV System—Bottom Silkscreen www.maximintegrated.com Maxim Integrated │  6 DS18B20 Evaluation System Evaluates: DS18B20 Revision History REVISION NUMBER REVISION DATE 0 2/19 DESCRIPTION Initial release PAGES CHANGED — For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2019 Maxim Integrated Products, Inc. │  7