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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
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Real Time Clock (RTC)

Function explanation

  • The real-time clock counts the calendar (year shown by double digits, month, day, and day of the week) and clock (time, minute, second).
  • Since the real-time clock uses a low-frequency-wave clock, it operates in low-power-consumption mode (IDLE, STOP, and STOP2) as well.
  • Any interrupt of 1 Hz, 2Hz, 4Hz, 8Hz, or 16Hz can be generated.
  • An interrupt can be generated if the alarm value (at a day, a day of the week, an hour, and a minute) set as an alarm function matches the time.

Real time clock count

Simulates real-time-clock count. If the "Start counting after setting the current day and time" button is clicked, the count value will be shown after setting current day and time for the register of the real-time clock.

RegisterPageBit7Bit6Bit5 Bit4Bit3Bit2Bit1Bit0 SettingContents
RTCSECRPAGE0 Second
RTCMINRPAGE0 Minute
RTCHOURRPAGE0 Hour
RTCDAYRPAGE0 Week day
RTCDATERPAGE0 Day
RTCMONTHRPAGE0 Month
PAGE1 24-hour clock mode
RTCYEARRPAGE0 Year
PAGE1 Leap year
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