DS1702K

DS1702K Datasheet

• Full-Featured Evaluation Kit for the DS1702K includes testing software for the DS1621, DS1721, DS1624, DS1629, DS75, and DS1775 devices. The DS1702K is comprised of five separate and unique software kits the DS1721K.exe works for both the DS1621 and DS1721 , DS1624K.exe, DS1629K.exe, and the DS75K.exe. Each software package works through the same 2-wire DS1702K board included in the DS1702K kit with jumper selections. The DS75K is completely software compatible with the DS1775 device requirements. However, the SOT23-5-pin socket is not provided.

Part	Datasheet
DS1702K	DS1702K (pdf)

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FEATURES: • Full-Featured Evaluation Kit for the DS1702K includes testing software for the DS1621, DS1721, DS1624, DS1629, DS75, and DS1775 devices. The DS1702K is comprised of five separate and unique software kits the DS1721K.exe works for both the DS1621 and DS1721 , DS1624K.exe, DS1629K.exe, and the DS75K.exe. Each software package works through the same 2-wire DS1702K board included in the DS1702K kit with jumper selections. The DS75K is completely software compatible with the DS1775 device requirements. However, the SOT23-5-pin socket is not provided. • Compatible with WindowsTM 95, Windows 98, and Windows NT Operating Systems. • Complete read/write access to all registers within the DS1621, DS1721, DS1624, DS1629, and DS75 devices. • Measures temperatures from the full range of the devices -55°C to +125°C. Fahrenheit equivalent is -67°F to +257°F. • Celsius and Fahrenheit temperature reading and charting is provided for the DS75, DS1621, and DS1721 devices. KIT CONTENTS: Separate Programming Software on the CDROM containing the DS1721K.exe, DS1624K.exe, DS1629K.exe and the DS75K.exe “Setup.exe” Installers. 87-1702K-000, 2-Wire Demo board. Demo Kit Documentation Provided on CDROM for each software program. DS9123 Universal Brick serial port device and cable. To use the kit, you will also need: An available Serial Port to connect the DS9123 Universal Brick modular data cable. Finally, you will need to provide a +2.7V to +5V regulated power supply with banana-jack leads. Windows is a trademark of Microsoft. DS1702K 2-Wire Thermal Device Evaluation Kit Kit Instructions and Operating Procedures HARDWARE: The 2-wire board as shown in Figure allows the user to test the functional capabilities of each device. The circuitry allows the user to read the temperature, and to read and write the appropriate registers of the socketed device. Figure 2-Wire Board Block Diagram COM PORT SELECTIONS The serial port selection can be changed by the user at any time by changing the “Comm Port” number on the “Select Preferences” form see Figure The “Select Preferences” form resides under the “Preferences” menu. The baud rate selection also resides on the “Select Preferences” form. Figure COM Port Preferences 1 of 16 USING THE DS1621/1721K EVALUATION KIT Once the 2-wire cable is connected to the serial port, you may then turn on the +3V to +5V regulated power supply to power the board. Next, run the DS1721K.exe executable to view the screen shown in Figure Figure DS1621/1721K Start-Up Splash Screen software is designed to initialize the DS1721 device upon start up and to look for the device at address The user may change the address by clicking the appropriate address at the top of the tab. Corresponding jumpers JP1, JP2, and JP3 or JP5, JP6, and JP7 should be in place. When the DS1721 150mil SO is used, the device will be placed in the OTS socket. Jumpers JP11 and JP12 will be removed when this socket is populated with any part other than the DS1629. JP9, JP10, and JP13 will be added for addresses other than Figure The Temperature Sensor Screen The splash screen will appear if the DS9123 module is connected to the serial port. The evaluation board does not need to be present to run the software. However, upon loading the software some registers are initialized therefore, it is recommended that the evaluation board be present and powered upon software startup. Power for the DS9123 module is obtained via the serial port. If the DS9123 module is not present, the software will not load. The only way to escape this mode is to reboot or Ctrl-Alt-Del to End Task. If problems occur during the program start-up, check the DS9123 to make sure it is properly connected. Remove and reconnect if necessary. Figure DS1621 Device Access THE TEMPERATURE SENSOR TAB Upon successful loading of the software, the Temp. Sensor screen as shown in Figure should appear. The Temperature Sensor screen is a tabbed user interface. All functions of the device may be accessed through this screen. The user may choose to populate the board with either the DS1621 device or the DS1721 device. The user may simply click the “On” button to begin immediately reading the device temperature in both Celsius and Fahrenheit. As the evaluation board is designed to test no more than two devices at a time, the user must choose which device will be socketed. If testing the DS1621, the user may click on the “->1621” tree-view to obtain access to all of the DS1621 internal registers or by simply clicking on the “1621” radio button. Figure illustrates the tree-view when the user clicks on the “1621” radio button. All of the DS1621 device registers are displayed. By clicking on each of the commands in the tree-view, the user may execute a command such as “Start Conversions” or read and write to specific registers. The TEMPERATURE SENSOR ALARMS The Temperature High and Temperature Low Flags are set and monitored in the Configuration Register. By writing to A1h and A2h the user may set the Temp. High and Temp. Low registers, respectively. When either alarm flag is set in the Configuration Register, the alarm is detected by software and the appropriate led s is are set from blue to red accordingly to indicate an alarm condition. The user may click the blue Temp. High and Temp. Low arrows on the user interface to set the limits in the appropriate registers see Figure Any click on these arrows automatically writes to the corresponding register. 2 of 16 Note The DS1621 alarm status flags THF and TLF are retained in nonvolatile memory in the Configuration Register. When these bits have been set by an alarm condition, they can only be cleared by writing 0 to these bits i.e., by writing “A” to the Configuration Register . Figure Temperature Sensor Alarms Figure DS1621/1721K Temperature Charting TEMPERATURE CHARTING

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FEATURES:
• Full-Featured Evaluation Kit for the DS1702K includes testing software for the DS1621, DS1721, DS1624, DS1629, DS75, and DS1775 devices. The DS1702K is comprised of five separate and unique software kits the DS1721K.exe works for both the DS1621 and DS1721 , DS1624K.exe, DS1629K.exe, and the DS75K.exe. Each software package works through the same 2-wire DS1702K board included in the DS1702K kit with jumper selections. The DS75K is completely software compatible with the DS1775 device requirements. However, the SOT23-5-pin socket is not provided.
• Compatible with WindowsTM 95, Windows 98, and Windows NT Operating Systems.
• Complete read/write access to all registers within the DS1621, DS1721, DS1624, DS1629, and DS75 devices.
• Measures temperatures from the full range of the devices -55°C to +125°C. Fahrenheit equivalent is -67°F to +257°F.
• Celsius and Fahrenheit temperature reading and charting is provided for the DS75, DS1621, and DS1721 devices.

KIT CONTENTS:

Separate Programming Software on the CDROM containing the DS1721K.exe, DS1624K.exe, DS1629K.exe and the DS75K.exe “Setup.exe” Installers.
87-1702K-000, 2-Wire Demo board.

Demo Kit Documentation Provided on CDROM for each software program.

DS9123 Universal Brick serial port device and cable.

To use the kit, you will also need:

An available Serial Port to connect the DS9123 Universal Brick modular data cable.

Finally, you will need to provide a +2.7V to +5V regulated power supply with banana-jack leads.

Windows is a trademark of Microsoft.

DS1702K 2-Wire Thermal Device Evaluation Kit

Kit Instructions and Operating Procedures

HARDWARE:

The 2-wire board as shown in Figure allows the user to test the functional capabilities of each device. The circuitry allows the user to read the temperature, and to read and write the appropriate registers of the socketed device. Figure 2-Wire Board Block Diagram

COM PORT SELECTIONS

The serial port selection can be changed by the user at any time by changing the “Comm Port” number on the “Select Preferences” form see Figure The “Select Preferences” form resides under the “Preferences” menu. The baud rate selection also resides on the “Select Preferences” form. Figure COM Port Preferences
1 of 16

USING THE DS1621/1721K EVALUATION KIT

Once the 2-wire cable is connected to the serial port, you may then turn on the +3V to +5V regulated power supply to power the board. Next, run the DS1721K.exe executable to view the screen shown in Figure

Figure DS1621/1721K Start-Up Splash Screen
software is designed to initialize the DS1721 device upon start up and to look for the device at address The user may change the address by clicking the appropriate address at the top of the tab. Corresponding jumpers JP1, JP2, and JP3 or JP5, JP6, and JP7 should be in place. When the DS1721 150mil SO is used, the device will be placed in the OTS socket. Jumpers JP11 and JP12 will be removed when this socket is populated with any part other than the DS1629. JP9, JP10, and JP13 will be added for addresses other than

Figure The Temperature Sensor Screen

The splash screen will appear if the DS9123 module is connected to the serial port. The evaluation board does not need to be present to run the software.

However, upon loading the software some registers are initialized therefore, it is recommended that the evaluation board be present and powered upon software startup. Power for the DS9123 module is obtained via the serial port. If the DS9123 module is not present, the software will not load. The only way to escape this mode is to reboot or Ctrl-Alt-Del to End Task. If problems occur during the program start-up, check the DS9123 to make sure it is properly connected. Remove and reconnect if necessary.

Figure DS1621 Device Access

THE TEMPERATURE SENSOR TAB

Upon successful loading of the software, the Temp. Sensor screen as shown in Figure should appear. The Temperature Sensor screen is a tabbed user interface. All functions of the device may be accessed through this screen. The user may choose to populate the board with either the DS1621 device or the DS1721 device. The user may simply click the “On” button to begin immediately reading the device temperature in both Celsius and Fahrenheit.

As the evaluation board is designed to test no more than two devices at a time, the user must choose which device will be socketed. If testing the DS1621, the user may click on the “->1621” tree-view to obtain access to all of the DS1621 internal registers or by simply clicking on the “1621” radio button.

Figure illustrates the tree-view when the user clicks on the “1621” radio button. All of the DS1621 device registers are displayed. By clicking on each of the commands in the tree-view, the user may execute a command such as “Start Conversions” or read and write to specific registers. The

TEMPERATURE SENSOR ALARMS

The Temperature High and Temperature Low Flags are set and monitored in the Configuration Register. By writing to A1h and A2h the user may set the Temp. High and Temp. Low registers, respectively. When either alarm flag is set in the Configuration Register, the alarm is detected by software and the appropriate led s is are set from blue to red accordingly to indicate an alarm condition. The user may click the blue Temp. High and Temp. Low arrows on the user interface to set the limits in the appropriate registers see Figure Any click on these arrows automatically writes to the corresponding register.
2 of 16

Note The DS1621 alarm status flags THF and TLF are retained in nonvolatile memory in the Configuration Register. When these bits have been set by an alarm condition, they can only be cleared by writing 0 to these bits i.e., by writing “A” to the Configuration Register .

Figure Temperature Sensor Alarms

Figure DS1621/1721K Temperature Charting

TEMPERATURE CHARTING

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived DS1702K Datasheet file may be downloaded here without warranties.

Datasheet ID: DS1702K 508389