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2,723 pcs
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2723 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The AB1805-T3 is a real time clock (RTC) IC from Abracon LLC, part of the AB18X5 family. It provides clock/calendar functionality with alarm, leap year, SRAM, trickle-charger, and watchdog timer features. The device supports I2C and 2-wire serial interface with bus frequency up to 400 kHz, and also offers SPI interface up to 2 MHz.
The RTC operates from a supply voltage of 1.5V to 3.6V and maintains timekeeping with a typical current of 0.17 µA to 0.22 µA at 1.8V to 3V. It features ultra-low supply current options: 14 nA with RC oscillator, 22 nA with RC oscillator and autocalibration, and 55 nA with crystal oscillator. The device includes 256 bytes of general purpose SRAM and supports time format HH:MM:SS:hh and date format YY-MM-DD-dd.
The AB1805-T3 is designed for surface mount and is packaged in a 16-VFQFN exposed pad package (16-QFN 3x3 mm). It operates over a temperature range of -40°C to 85°C. The device includes advanced features such as crystal calibration accuracy of ±2 ppm and RC calibration accuracy of ±16 ppm. It also integrates power management features including a trickle charger and automatic switchover to backup battery.
1.5V to 3.6V.
-40°C to 85°C.
16-VFQFN Exposed Pad (16-QFN 3x3 mm).
It is listed as RoHS3 Compliant, but this is unverified.
I2C and 2-wire serial interface, with SPI also available.
256 bytes of SRAM.
0.17 µA to 0.22 µA at 1.8V to 3V.