| Drivers, Receivers, Transceivers | 2 | Obsolete | |
| Integrated Circuits (ICs) | 1 | Obsolete | |
| Integrated Circuits (ICs) | 3 | Obsolete | |
| Evaluation Boards | 15 | Active | |
DS3232Extremely Accurate I²C RTC with Integrated Crystal and SRAM | Integrated Circuits (ICs) | 9 | Active | The DS3232 is a low-cost temperature-compensated crystal oscillator (TCXO) with a very accurate, temperature-compensated, integrated real-time clock (RTC) and 236 bytes of battery-backed SRAM. Additionally, the DS3232 incorporates a battery input and maintains accurate timekeeping when main power to the device is interrupted. The integration of the crystal resonator enhances the long-term accuracy of the device as well as reduces the piece-part count in a manufacturing line. The DS3232 is available in commercial and industrial temperature ranges, and is offered in an industry-standard 20-pin, 300-mil SO package.The RTC maintains seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with an active-low AM/PM indicator. Two programmable time-of-day alarms and a programmable square-wave output are provided. Address and data are transferred serially through an I²C bidirectional bus.A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCCto detect power failures, to provide a reset output, and to automatically switch to the backup supply when necessary. Additionally, the active-low RST pin is monitored as a pushbutton input for generating a µP reset.ApplicationsGPSServersTelematicsUtility Power Meters |
DS3234Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM | Integrated Circuits (ICs) | 4 | Active | The DS3234 is a low-cost, extremely accurate SPI™ bus real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The DS3234 incorporates a precision, temperature-compensated voltage reference and comparator circuit to monitor VCC. When VCCdrops below the power-fail voltage (VPF), the device asserts the active-low RST output and also disables read and write access to the part when VCCdrops below both VPFand VBAT. The active-low RST pin is monitored as a pushbutton input for generating a µP reset. The device switches to the backup supply input and maintains accurate timekeeping when main power to the device is interrupted. The integration of the crystal resonator enhances the long-term accuracy of the device as well as reduces the piece-part count in a manufacturing line. The DS3234 is available in commercial and industrial temperature ranges, and is offered in an industry-standard 300-mil, 20-pin SO package.The DS3234 also integrates 256 bytes of battery-backed SRAM. In the event of main power loss, the contents of the memory are maintained by the power source connected to the VBATpin. The RTC maintains seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with active-low AM/PM indicator. Two programmable time-of-day alarms and a programmable square-wave output are provided. Address and data are transferred serially by an SPI bidirectional bus.ApplicationsGPSServersTelematicsUtility Power Meters |
| Integrated Circuits (ICs) | 2 | Obsolete | |
| Integrated Circuits (ICs) | 2 | Obsolete | |
| Interface | 1 | Obsolete | |
| Interface | 3 | Obsolete | |
