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DS1342 - (DS1341 / DS1342) Low-Current I2C RTCs

Download the DS1342 datasheet PDF. This datasheet also covers the DS1341 variant, as both devices belong to the same (ds1341 / ds1342) low-current i2c rtcs family and are provided as variant models within a single manufacturer datasheet.

General Description

The DS1341/DS1342 low-current real-time clocks (RTCs) are timekeeping devices that provide an extremely low standby current, which permits longer life from a power supply.

The DS1341/DS1342 support high-ESR crystals, which broaden the pool of usable crystals for the devices.

Key Features

  • include two time-of-day alarms, two interrupt outputs, a programmable squarewave output, and a serial bus timeout mechanism. The clock/calendar provides 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 24hr or 12hr format with an AM/PM indicator. The DS1341/DS1342 also include an input for synchronization. When a referenc.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (DS1341_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
DS1340 I2C RTC
DS1341 (DS1341 / DS1342) Low-Current I2C RTCs
DS1343 (DS1343 / DS1344) Low-Current SPI/3-Wire RTCs
DS1344 (DS1343 / DS1344) Low-Current SPI/3-Wire RTCs
DS1345AB 1024k Nonvolatile SRAM

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
19-4998; Rev 0; 10/09 Low-Current I2C RTCs for High-ESR Crystals General Description The DS1341/DS1342 low-current real-time clocks (RTCs) are timekeeping devices that provide an extremely low standby current, which permits longer life from a power supply. The DS1341/DS1342 support high-ESR crystals, which broaden the pool of usable crystals for the devices. The DS1341 uses a 6pF crystal, while the DS1342 uses a 12.5pF crystal. These devices are accessed through an I2C serial interface. Other features include two time-of-day alarms, two interrupt outputs, a programmable squarewave output, and a serial bus timeout mechanism. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information.