This fixed-frequency 32.768 kHz MEMS oscillator is designed as an XTAL replacement for low-power timekeeping applications. It operates from 1.2 V to 3.63 V, supports direct connection to XTAL inputs, and eliminates external load capacitors and the usual Vdd bypass capacitor through internal filtering. The device is factory trimmed for 10 ppm frequency tolerance at 25°C and provides up to 100 ppm stability across -40°C to +85°C when operated from 1.5 V to 3.63 V. Its 1.5 x 0.8 mm chip-scale package and NanoDrive programmable output swing help reduce board area and power consumption.
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Sitime SiT1532AC-J5-AA3-32.768 technical specifications.
| Output Frequency | 32.768kHz |
| Frequency Tolerance | 10ppm |
| Frequency Stability | 100 max over -40°C to +85°C at 1.5 V to 3.63 Vppm |
| Operating Supply Voltage | 1.2 to 3.63V |
| Core Operating Current | 0.90 typ at 25°C, 1.8 V, no loadµA |
| Output Stage Operating Current | 0.065 typ, 0.125 maxµA/Vpp |
| Startup Time | 180 typ, 300 maxms |
| Operating Temperature Range | -40 to 85°C |
| Package Size | 1.5 x 0.8mm |
| Rise/Fall Time | 100 typ, 200 max at 15 pF loadns |
| Duty Cycle | 48 to 52% |
| Output Swing | 0.20 to 0.80 AC-coupled programmableV |
| Period Jitter | 35ns RMS |
| Aging | ±1 first yearppm |
| HBM ESD Protection | 3000V |
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