Product Information

MAX31342SHLD#

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Datasheet
Clock & Timer Development Tools Low Current Real Time Clock with IC Interface
Manufacturer: Maxim



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Manufacturer
Maxim
Product Category
Clock & Timer Development Tools
RoHS - XON
E Icon ROHS
Product
Evaluation Boards
Type
Rtc
Tool Is For Evaluation Of
Max31342
Frequency
32.768 Khz
Operating Supply Voltage
1.6 v to 3.6 V
Series
Max31342
Brand
Maxim
Interface Type
I2c
Product Type
Clock & Timer Development Tools
Factory Pack Quantity :
1
Subcategory
Development Tools
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PRELIMINARY Click here for production status of specific part numbers. Evaluates: MAX31342 MAX31342 SHIELD General Description Quick Start The MAX31342 shield is a fully assembled and tested Required Equipment PCB to evaluate the MAX31342, low-current, real-time ? One Pico Ammeter for measuring the current 2 clock (RTC) with I C interface. The shield operates ? One oscilloscope with probe from a single supply, either from USB or external power supply, and the onboard crystal provides a 32.768kHz ? One PC with Microsoft Windows 7, or later 2 clock signal. This device is accessed through an I C ? One USB A male to micro B USB cable serial interface. ? One assembled and programmed MAX32625PICO The MAX31342 shield provides the hardware and software board graphical user interface (GUI) necessary to evaluate the ? One MAX31342 Shield MAX31342. The shield includes a MAX31342EWA+T installed. The shield connects to the PC through a MAX32625PICO Board and a micro-USB cable. Shield Board Features ? Easy Evaluation of the MAX31342 ? +1.6V to 3.6V Single-Supply Operation ? Proven PCB Layout ? Mbed/Arduino Platform Compatible ? Fully Assembled and Tested Shield Contents ? Assembled MAX32625PICO controller board ? Micro-USB cable ? Assembled circuit board includes the MAX31342EWA+T Ordering Information appears at end of data sheet. MAX32625PICO Board 319-100305; Rev 0; 2/19PRELIMINARY Click here for production status of specific part numbers. Evaluates: MAX31342 MAX31342 SHIELD General Description Quick Start The MAX31342 shield is a fully assembled and tested Required Equipment PCB to evaluate the MAX31342, low-current, real-time ? One Pico Ammeter for measuring the current 2 clock (RTC) with I C interface. The shield operates ? One oscilloscope with probe from a single supply, either from USB or external power supply, and the onboard crystal provides a 32.768kHz ? One PC with Microsoft Windows 7, or later 2 clock signal. This device is accessed through an I C ? One USB A male to micro B USB cable serial interface. ? One assembled and programmed MAX32625PICO The MAX31342 shield provides the hardware and software board graphical user interface (GUI) necessary to evaluate the ? One MAX31342 Shield MAX31342. The shield includes a MAX31342EWA+T installed. The shield connects to the PC through a MAX32625PICO Board and a micro-USB cable. Shield Board Features ? Easy Evaluation of the MAX31342 ? +1.6V to 3.6V Single-Supply Operation ? Proven PCB Layout ? Mbed/Arduino Platform Compatible ? Fully Assembled and Tested Shield Contents ? Assembled MAX32625PICO controller board ? Micro-USB cable ? Assembled circuit board includes the MAX31342EWA+T Ordering Information appears at end of data sheet. MAX32625PICO Board 319-100305; Rev 0; 2/19PRELIMINARY Evaluates: MAX31342 MAX31342 SHIELD Procedure The shield is fully assembled and tested. Follow the steps below to verify board operation. 1) Place the MAX31342 shield on a nonconductive sur- face to ensure that nothing on the PCB gets shorted to the workspace. 2) Set the jumpers of JU4, JU6, and JU7 to their default positions. Leave the jumper JU1 open. 3) Connect the MAX32625PICO Board to the shield as shown in Figure 1. 4) Connect the USB A male to micro B male cable between the MAX32625PICO board and PC/laptop. 5) Go to the MAX31342 Shield product page to download and install the latest version of the MAX31342 RTC Shield software. 6) Open the MAX31342 RTC Shield software. Figure 1. Connection and Setup Configuration and Time tab will be shown Figure 2. Figure 2. MAX31342 RTC Shield Software-Configuration andTime Tab Maxim Integrated ? 2 www.maximintegrated.comPRELIMINARY Click here for production status of specific part numbers. Evaluates: MAX31342 MAX31342 SHIELD General Description Quick Start The MAX31342 shield is a fully assembled and tested Required Equipment PCB to evaluate the MAX31342, low-current, real-time ? One Pico Ammeter for measuring the current 2 clock (RTC) with I C interface. The shield operates ? One oscilloscope with probe from a single supply, either from USB or external power supply, and the onboard crystal provides a 32.768kHz ? One PC with Microsoft Windows 7, or later 2 clock signal. This device is accessed through an I C ? One USB A male to micro B USB cable serial interface. ? One assembled and programmed MAX32625PICO The MAX31342 shield provides the hardware and software board graphical user interface (GUI) necessary to evaluate the ? One MAX31342 Shield MAX31342. The shield includes a MAX31342EWA+T installed. The shield connects to the PC through a MAX32625PICO Board and a micro-USB cable. Shield Board Features ? Easy Evaluation of the MAX31342 ? +1.6V to 3.6V Single-Supply Operation ? Proven PCB Layout ? Mbed/Arduino Platform Compatible ? Fully Assembled and Tested Shield Contents ? Assembled MAX32625PICO controller board ? Micro-USB cable ? Assembled circuit board includes the MAX31342EWA+T Ordering Information appears at end of data sheet. MAX32625PICO Board 319-100305; Rev 0; 2/19PRELIMINARY Click here for production status of specific part numbers. Evaluates: MAX31342 MAX31342 SHIELD General Description Quick Start The MAX31342 shield is a fully assembled and tested Required Equipment PCB to evaluate the MAX31342, low-current, real-time ? One Pico Ammeter for measuring the current 2 clock (RTC) with I C interface. The shield operates ? One oscilloscope with probe from a single supply, either from USB or external power supply, and the onboard crystal provides a 32.768kHz ? One PC with Microsoft Windows 7, or later 2 clock signal. This device is accessed through an I C ? One USB A male to micro B USB cable serial interface. ? One assembled and programmed MAX32625PICO The MAX31342 shield provides the hardware and software board graphical user interface (GUI) necessary to evaluate the ? One MAX31342 Shield MAX31342. The shield includes a MAX31342EWA+T installed. The shield connects to the PC through a MAX32625PICO Board and a micro-USB cable. Shield Board Features ? Easy Evaluation of the MAX31342 ? +1.6V to 3.6V Single-Supply Operation ? Proven PCB Layout ? Mbed/Arduino Platform Compatible ? Fully Assembled and Tested Shield Contents ? Assembled MAX32625PICO controller board ? Micro-USB cable ? Assembled circuit board includes the MAX31342EWA+T Ordering Information appears at end of data sheet. MAX32625PICO Board 319-100305; Rev 0; 2/19PRELIMINARY Evaluates: MAX31342 MAX31342 SHIELD Procedure The shield is fully assembled and tested. Follow the steps below to verify board operation. 1) Place the MAX31342 shield on a nonconductive sur- face to ensure that nothing on the PCB gets shorted to the workspace. 2) Set the jumpers of JU4, JU6, and JU7 to their default positions. Leave the jumper JU1 open. 3) Connect the MAX32625PICO Board to the shield as shown in Figure 1. 4) Connect the USB A male to micro B male cable between the MAX32625PICO board and PC/laptop. 5) Go to the MAX31342 Shield product page to download and install the latest version of the MAX31342 RTC Shield software. 6) Open the MAX31342 RTC Shield software. Figure 1. Connection and Setup Configuration and Time tab will be shown Figure 2. Figure 2. MAX31342 RTC Shield Software-Configuration andTime Tab Maxim Integrated ? 2 www.maximintegrated.comPRELIMINARY Evaluates: MAX31342 MAX31342 SHIELD CLKOUT Frequency Detailed Description In Configuration and Time tab of the software, under The MAX31342 shield is a fully assembled and tested PCB RTC Configuration group box, select CLKOUT and the to evaluate the MAX31342, low-current, real-time clock 2 desired CLKOUT Frequency. The clock output can be (RTC) with I C interface. The shield operates from a single monitored using an oscilloscope connected to the INTB/ supply, either from USB or external power supply, and the CLKOUT test point. A frequency counter can also be used onboard crystal provides a 32.768kHz clock signal. This 2 to measure the clock frequency accurately. device is accessed through an I C serial interface. The MAX31342 shield provides the hardware and software Alarm Configuration graphical user interface (GUI) necessary to evaluate the On the MAX31342 shield board, set jumper JU1 to 1-2 MAX31342. The shield includes a MAX31342EWA+T and jumper JU6 to 1-4. installed. The shield connects to the PC through a In Alarms and Timer tab of the software, under Alarm 1 MAX32625PICO board and a micro-USB cable. Configuration group box, select the Repetition Rate to set the alarm, and make selections for all other relevant Functional Test Procedure fields (such as Min, Sec, etc.). In Interrupts and Flags Real-Time Monitoring group box, enable alarm 1 by checking the Alarm 1 To monitor the time and date, on Configuration and Time Interrupt check box. When the Real-Time clock reaches tab, in RTC Configuration group box, enable Oscillator the alarm1 match condition, INTA/CLKIN will go from high Enable, and under Real Time Monitoring group box, to low. Under Flags group box, press Read button to press Read button for one-time reading or check the Auto read the status and clear the alarm flag bit if it has been Update checkbox for continuous reading. previously set. The time and date values can be updated by selecting the Repeat the same steps for Alarm 2 but measure the alarm required values in the Date/Time Configuration group interrupt output at INTB/CLKOUT test point. box and clicking the Set button. Note: When testing alarm interrupts, CLKIN and CLKOUT need to be disabled under RTC Configuration group box in The time stops counting when enabling Data Retention Configuration and Time tab of the software. in RTC Configuration group box and restarts when For more detail on using the software, refer to the disabling Data Retention and toggling Oscillator Enable. MAX31342 shield software user?s guide. The time resets to 00:00:00 by enabling Soft Reset in RTC Configuration group box and it restarts by disabling Soft Reset. Current Draw at Time-Keeping Mode To measure the current draw under normal Real-Time Clock condition, without any interrupt or clock input/output: 1) Remove the jumper from JU7 on the shield. 2) With the output set to the desired DC voltage (1.6V to 3.6V) and disabled, connect the positive terminal of the DC supply, through the pico ammeter, to pin 1 of JU7 and negative terminal to the ground of the shield. 3) In Configuration and Time tab of the software, under RTC Configuration group box, press Read button, disable the CLKIN and CLKOUT, and select 1Hz for CLKIN Frequency and CLKOUT Frequency. Under Real Time Monitoring, uncheck Auto Update. 4) The reading on the pico ammeter is the current drawn by MAX31342 only. Note: All instruments need to be disconnected from the I/O ports of the IC, since any loading would increase current con- sumption. Maxim Integrated ? 3 www.maximintegrated.comPRELIMINARY Click here for production status of specific part numbers. Evaluates: MAX31342 MAX31342 SHIELD General Description Quick Start The MAX31342 shield is a fully assembled and tested Required Equipment PCB to evaluate the MAX31342, low-current, real-time ? One Pico Ammeter for measuring the current 2 clock (RTC) with I C interface. The shield operates ? One oscilloscope with probe from a single supply, either from USB or external power supply, and the onboard crystal provides a 32.768kHz ? One PC with Microsoft Windows 7, or later 2 clock signal. This device is accessed through an I C ? One USB A male to micro B USB cable serial interface. ? One assembled and programmed MAX32625PICO The MAX31342 shield provides the hardware and software board graphical user interface (GUI) necessary to evaluate the ? One MAX31342 Shield MAX31342. The shield includes a MAX31342EWA+T installed. The shield connects to the PC through a MAX32625PICO Board and a micro-USB cable. Shield Board Features ? Easy Evaluation of the MAX31342 ? +1.6V to 3.6V Single-Supply Operation ? Proven PCB Layout ? Mbed/Arduino Platform Compatible ? Fully Assembled and Tested Shield Contents ? Assembled MAX32625PICO controller board ? Micro-USB cable ? Assembled circuit board includes the MAX31342EWA+T Ordering Information appears at end of data sheet. MAX32625PICO Board 319-100305; Rev 0; 2/19PRELIMINARY Click here for production status of specific part numbers. Evaluates: MAX31342 MAX31342 SHIELD General Description Quick Start The MAX31342 shield is a fully assembled and tested Required Equipment PCB to evaluate the MAX31342, low-current, real-time ? One Pico Ammeter for measuring the current 2 clock (RTC) with I C interface. The shield operates ? One oscilloscope with probe from a single supply, either from USB or external power supply, and the onboard crystal provides a 32.768kHz ? One PC with Microsoft Windows 7, or later 2 clock signal. This device is accessed through an I C ? One USB A male to micro B USB cable serial interface. ? One assembled and programmed MAX32625PICO The MAX31342 shield provides the hardware and software board graphical user interface (GUI) necessary to evaluate the ? One MAX31342 Shield MAX31342. The shield includes a MAX31342EWA+T installed. The shield connects to the PC through a MAX32625PICO Board and a micro-USB cable. Shield Board Features ? Easy Evaluation of the MAX31342 ? +1.6V to 3.6V Single-Supply Operation ? Proven PCB Layout ? Mbed/Arduino Platform Compatible ? Fully Assembled and Tested Shield Contents ? Assembled MAX32625PICO controller board ? Micro-USB cable ? Assembled circuit board includes the MAX31342EWA+T Ordering Information appears at end of data sheet. MAX32625PICO Board 319-100305; Rev 0; 2/19PRELIMINARY Evaluates: MAX31342 MAX31342 SHIELD Procedure The shield is fully assembled and tested. Follow the steps below to verify board operation. 1) Place the MAX31342 shield on a nonconductive sur- face to ensure that nothing on the PCB gets shorted to the workspace. 2) Set the jumpers of JU4, JU6, and JU7 to their default positions. Leave the jumper JU1 open. 3) Connect the MAX32625PICO Board to the shield as shown in Figure 1. 4) Connect the USB A male to micro B male cable between the MAX32625PICO board and PC/laptop. 5) Go to the MAX31342 Shield product page to download and install the latest version of the MAX31342 RTC Shield software. 6) Open the MAX31342 RTC Shield software. Figure 1. Connection and Setup Configuration and Time tab will be shown Figure 2. Figure 2. MAX31342 RTC Shield Software-Configuration andTime Tab Maxim Integrated ? 2 www.maximintegrated.comPRELIMINARY Click here for production status of specific part numbers. Evaluates: MAX31342 MAX31342 SHIELD General Description Quick Start The MAX31342 shield is a fully assembled and tested Required Equipment PCB to evaluate the MAX31342, low-current, real-time ? One Pico Ammeter for measuring the current 2 clock (RTC) with I C interface. The shield operates ? One oscilloscope with probe from a single supply, either from USB or external power supply, and the onboard crystal provides a 32.768kHz ? One PC with Microsoft Windows 7, or later 2 clock signal. This device is accessed through an I C ? One USB A male to micro B USB cable serial interface. ? One assembled and programmed MAX32625PICO The MAX31342 shield provides the hardware and software board graphical user interface (GUI) necessary to evaluate the ? One MAX31342 Shield MAX31342. The shield includes a MAX31342EWA+T installed. The shield connects to the PC through a MAX32625PICO Board and a micro-USB cable. Shield Board Features ? Easy Evaluation of the MAX31342 ? +1.6V to 3.6V Single-Supply Operation ? Proven PCB Layout ? Mbed/Arduino Platform Compatible ? Fully Assembled and Tested Shield Contents ? Assembled MAX32625PICO controller board ? Micro-USB cable ? Assembled circuit board includes the MAX31342EWA+T Ordering Information appears at end of data sheet. MAX32625PICO Board 319-100305; Rev 0; 2/19PRELIMINARY Click here for production status of specific part numbers. Evaluates: MAX31342 MAX31342 SHIELD General Description Quick Start The MAX31342 shield is a fully assembled and tested Required Equipment PCB to evaluate the MAX31342, low-current, real-time ? One Pico Ammeter for measuring the current 2 clock (RTC) with I C interface. The shield operates ? One oscilloscope with probe from a single supply, either from USB or external power supply, and the onboard crystal provides a 32.768kHz ? One PC with Microsoft Windows 7, or later 2 clock signal. This device is accessed through an I C ? One USB A male to micro B USB cable serial interface. ? One assembled and programmed MAX32625PICO The MAX31342 shield provides the hardware and software board graphical user interface (GUI) necessary to evaluate the ? One MAX31342 Shield MAX31342. The shield includes a MAX31342EWA+T installed. The shield connects to the PC through a MAX32625PICO Board and a micro-USB cable. Shield Board Features ? Easy Evaluation of the MAX31342 ? +1.6V to 3.6V Single-Supply Operation ? Proven PCB Layout ? Mbed/Arduino Platform Compatible ? Fully Assembled and Tested Shield Contents ? Assembled MAX32625PICO controller board ? Micro-USB cable ? Assembled circuit board includes the MAX31342EWA+T Ordering Information appears at end of data sheet. MAX32625PICO Board 319-100305; Rev 0; 2/19PRELIMINARY Evaluates: MAX31342 MAX31342 SHIELD Procedure The shield is fully assembled and tested. Follow the steps below to verify board operation. 1) Place the MAX31342 shield on a nonconductive sur- face to ensure that nothing on the PCB gets shorted to the workspace. 2) Set the jumpers of JU4, JU6, and JU7 to their default positions. Leave the jumper JU1 open. 3) Connect the MAX32625PICO Board to the shield as shown in Figure 1. 4) Connect the USB A male to micro B male cable between the MAX32625PICO board and PC/laptop. 5) Go to the MAX31342 Shield product page to download and install the latest version of the MAX31342 RTC Shield software. 6) Open the MAX31342 RTC Shield software. Figure 1. Connection and Setup Configuration and Time tab will be shown Figure 2. Figure 2. MAX31342 RTC Shield Software-Configuration andTime Tab Maxim Integrated ? 2 www.maximintegrated.comPRELIMINARY Evaluates: MAX31342 MAX31342 SHIELD CLKOUT Frequency Detailed Description In Configuration and Time tab of the software, under The MAX31342 shield is a fully assembled and tested PCB RTC Configuration group box, select CLKOUT and the to evaluate the MAX31342, low-current, real-time clock 2 desired CLKOUT Frequency. The clock output can be (RTC) with I C interface. The shield operates from a single monitored using an oscilloscope connected to the INTB/ supply, either from USB or external power supply, and the CLKOUT test point. A frequency counter can also be used onboard crystal provides a 32.768kHz clock signal. This 2 to measure the clock frequency accurately. device is accessed through an I C serial interface. The MAX31342 shield provides the hardware and software Alarm Configuration graphical user interface (GUI) necessary to evaluate the On the MAX31342 shield board, set jumper JU1 to 1-2 MAX31342. The shield includes a MAX31342EWA+T and jumper JU6 to 1-4. installed. The shield connects to the PC through a In Alarms and Timer tab of the software, under Alarm 1 MAX32625PICO board and a micro-USB cable. Configuration group box, select the Repetition Rate to set the alarm, and make selections for all other relevant Functional Test Procedure fields (such as Min, Sec, etc.). In Interrupts and Flags Real-Time Monitoring group box, enable alarm 1 by checking the Alarm 1 To monitor the time and date, on Configuration and Time Interrupt check box. When the Real-Time clock reaches tab, in RTC Configuration group box, enable Oscillator the alarm1 match condition, INTA/CLKIN will go from high Enable, and under Real Time Monitoring group box, to low. Under Flags group box, press Read button to press Read button for one-time reading or check the Auto read the status and clear the alarm flag bit if it has been Update checkbox for continuous reading. previously set. The time and date values can be updated by selecting the Repeat the same steps for Alarm 2 but measure the alarm required values in the Date/Time Configuration group interrupt output at INTB/CLKOUT test point. box and clicking the Set button. Note: When testing alarm interrupts, CLKIN and CLKOUT need to be disabled under RTC Configuration group box in The time stops counting when enabling Data Retention Configuration and Time tab of the software. in RTC Configuration group box and restarts when For more detail on using the software, refer to the disabling Data Retention and toggling Oscillator Enable. MAX31342 shield software user?s guide. The time resets to 00:00:00 by enabling Soft Reset in RTC Configuration group box and it restarts by disabling Soft Reset. Current Draw at Time-Keeping Mode To measure the current draw under normal Real-Time Clock condition, without any interrupt or clock input/output: 1) Remove the jumper from JU7 on the shield. 2) With the output set to the desired DC voltage (1.6V to 3.6V) and disabled, connect the positive terminal of the DC supply, through the pico ammeter, to pin 1 of JU7 and negative terminal to the ground of the shield. 3) In Configuration and Time tab of the software, under RTC Configuration group box, press Read button, disable the CLKIN and CLKOUT, and select 1Hz for CLKIN Frequency and CLKOUT Frequency. Under Real Time Monitoring, uncheck Auto Update. 4) The reading on the pico ammeter is the current drawn by MAX31342 only. Note: All instruments need to be disconnected from the I/O ports of the IC, since any loading would increase current con- sumption. Maxim Integrated ? 3 www.maximintegrated.com

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