This ultra-small 32.768 kHz oscillator is designed as a quartz XTAL replacement for battery-powered and mobile applications. It operates from 1.2 V to 3.63 V and supports industrial operation from -40°C to +85°C. Typical core current is 0.90 µA at 1.8 V with no load, and the device provides a factory-programmable NanoDrive output to reduce swing and power consumption. The 2.0 x 1.2 mm package is pin-compatible with 2012 XTAL footprints when used with the recommended solder-pad layout. Frequency tolerance is 20 ppm at 25°C, and frequency stability is specified to 100 ppm over the full -40°C to +85°C range.
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Sitime SiT1533A-H4-0002 technical specifications.
| Oscillator type | 32 kHz XO |
| Output frequency | 32.768kHz |
| Frequency tolerance | 20ppm |
| Frequency stability (-40°C to +85°C) | 100ppm |
| Frequency stability (-10°C to +70°C) | 75ppm |
| Aging, first year | ±1ppm |
| Supply voltage range | 1.2 to 3.63V |
| Core operating current, typical | 0.90µA |
| Start-up time, typical | 180ms |
| Operating temperature range | -40 to +85°C |
| Duty cycle | 48 to 52% |
| Period jitter | 35ns RMS |
| Package size | 2.0 x 1.2mm |
| ESD protection, HBM | 3000V |
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