The AB1803-T3 is a real-time clock (RTC) from Quarktwin Technology Ltd. designed for ultra-low power applications, featuring a supply current as low as 14 nA with an RC oscillator. It operates within a voltage range of 1.5 to 3.6 V and supports an operating temperature range of -40 to 85 ¬8C. The device includes a 32.768 kHz crystal oscillator, programmable counters for timekeeping, alarm capabilities, and a countdown timer. The AB1803-T3 also offers advanced features such as automatic calibration of the RC oscillator to the crystal oscillator, a watchdog timer, and up to 64 bytes of general-purpose RAM. Power management capabilities include an integrated power switch, a system sleep manager, and programmable low battery detection. Communication is facilitated through I2C (up to 400 kHz) or SPI (up to 2 MHz) interfaces. The product is packaged in a compact 3x3 mm QFN-16 format, making it suitable for various applications including smart cards, wireless sensors, medical electronics, and consumer devices.
RoHS/RoHS II Compliant
Real Time Clock (RTC) IC Clock/Calendar 64B I²C, 2-Wire Serial 16-VFQFN Exposed Pad
Real Time Clock (RTC) IC Clock/Calendar 64B I²C, 2-Wire Serial 16-VFQFN Exposed Pad
IC RTC CLK/CALENDAR I2C 16QFN
IC RTC CLK/CALENDAR I2C 16-QFN
| Abracon, LLC | DigiKey | Quarktwin Technology Ltd. | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic Limited | |
|---|---|---|---|---|---|
| Product Category | IC Clocks | IC Clocks | IC Clocks | IC Clocks | IC Clocks |
| Product Number | AB1803-T3 | 535-11931-2-ND | AB1803-T3 | AB1803-T3 | AB1803-T3 |
| Product Name | ABx8x5 Clock/Calendar | Real Time Clocks | Real Time Clocks | Integrated Circuits (ICs) - Clock-Timing - Real Time Clocks | Clock/Timing - Real Time Clocks |
| Device Type | Real Time Clock | Real Time Clock | Real Time Clock | Clock/Calendar; Real Time Clock | Real Time Clock |
| Bus Interface | I2C | I2C; I²C, 2-Wire Serial | |||
| Package Type | QFN; 16-VFQFN Exposed Pad | Surface Mount; 16-VFQFN Exposed Pad | Surface Mount; 16-VFQFN Exposed Pad | Surface Mount; Surface Mount |
