This device is a 32.768 kHz MEMS temperature-compensated oscillator optimized for battery-powered timekeeping applications. It operates from a 1.5 V to 3.63 V supply and draws 0.99 µA typical core current at 1.8 V with no load. Frequency stability options are available to ±5 ppm, ±10 ppm, or ±20 ppm over temperature, and the device supports commercial and industrial temperature ranges up to -40°C to +85°C. The oscillator is housed in a 1.5 x 0.8 mm chip-scale package and integrates internal supply filtering so an external Vdd bypass capacitor is not required. Start-up time is 180 ms typical and 300 ms maximum through +60°C, with LVCMOS or programmable reduced-swing output configurations.
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Sitime SiT1552AI-JE-D74-32.768 technical specifications.
| Output Frequency | 32.768kHz |
| Frequency Stability Options | ±5, ±10, ±20ppm |
| Operating Supply Voltage | 1.5 to 3.63V |
| Core Supply Current | 0.99 typµA |
| Operating Temperature Range | 0 to 70 / -40 to 85°C |
| Start-up Time | 180 typ, 300 maxms |
| Long Term Jitter | 2.5 maxµspp |
| Period Jitter | 35 typns RMS |
| Output Clock Duty Cycle | 48 to 52% |
| LVCMOS Rise/Fall Time | 100 typ, 200 maxns |
| Package Size | 1.5 x 0.8mm |
| HBM ESD Protection | 3000V |
| Pb-free | Yes |
| RoHS | Compliant |
| REACH | Compliant |
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