This programmable MEMS oscillator provides a factory-set 32.768 kHz output within a family that supports frequencies from 1 Hz to 32.768 kHz in powers of two. It operates from a 1.2 V to 3.63 V supply and is designed for ultra-low power operation, with 0.9 µA typical core current at 1.8 V and 25°C. The device supports NanoDrive reduced-swing output options, starts in 300 ms typical plus one clock period, and is specified for operation in compact 2.0 x 1.2 mm and 1.5 x 0.8 mm package families. It is intended for RTC reference clock, pulse-per-second, and battery-backed timekeeping applications and is specified as Pb-free, RoHS, and REACH compliant.
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Sitime SiT1534AC-H5-D14-32.768 technical specifications.
| Output Frequency | 32.768kHz |
| Programmable Frequency Range | 1 to 32768Hz |
| Frequency Tolerance | 20ppm |
| Frequency Stability | 75 to 250ppm |
| Supply Voltage | 1.2 to 3.63V |
| Core Operating Current | 0.9 typµA |
| Output Stage Operating Current | 0.065 typ, 0.125 maxµA/Vpp |
| Start-up Time | 300 typ + 1 period; 500 max + 1 periodms |
| Duty Cycle | 48 to 52% |
| Rise/Fall Time | 100 to 200ns |
| Period Jitter | 35 typns RMS |
| Operating Temperature Range | -10 to 70, -40 to 85, or -55 to 85°C |
| RoHS | Compliant |
| REACH | Compliant |
| Pb-free | Yes |
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