DS3232MZ/V+

DS3232MZ/V+ is a low-cost, extremely accurate, I²C real-time clock (RTC) with 236 bytes of battery-backed SRAM. This device incorporates a battery input and maintains accurate timekeeping when the main power to the device is interrupted. The integration of the microelectromechanical systems (MEMS) resonator enhances the long-term accuracy of the device and reduces the piece part count in a manufacturing line. 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 the leap year. The clock operates in either the 24-hour or 12-hour format with an AM/PM indicator. Two programmable time-of-day alarms and a 1Hz output are provided. Address and data are transferred serially through an I²C bidirectional bus. It is used in applications such as power meters, and industrial applications.

• Battery backup for continuous timekeeping, low power consumption
• Reset output and pushbutton input with debounce
• Supply voltage range from +2.3V to +4.5V
• 1Hz frequency tolerance is ±5ppm maximum at (TA = +25°C)
• Active supply current (I²C active) is 125µA typical at (VCC = +2.3V to +4.5V)
• SCL clock frequency is 400KHz maximum at (VCC or VBAT = +2.3V to +4.5V)
• Temperature conversion time is 10ms typical at (VCC = +2.3V to +4.5V, TA = -40°C to +85°C)
• 32KHz frequency tolerance is ±2.5% maximum at (VCC or VBAT = +3.3V, TA = -40°C to +85°C)
• Operating temperature range from -40°C to +85°C
• 8-pin SO package

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