Silicon Oscillator with Low-Power Frequency Select and Enable
DescriptionThe MAX7383 dual-speed silicon oscillator replaces ceramic resonators, crystals, and crystal-oscillator modules as the primary and secondary clock source for microcontrollers in 3V, 3.3V, and 5V applications. The MAX7383 features a factory-programmed high-speed oscillator, a 32.768kHz oscillator, a clock enable input, and a clock-selector input. The clock output can be switched at any time between the high-speed clock and the 32.768kHz clock for low-power operation. Switchover is synchronized internally to provide glitch-free clock switching.
Unlike typical crystal and ceramic-resonator oscillator circuits, the MAX7383 is resistant to vibration and EMI. The high-output-drive current and absence of high-impedance nodes makes the oscillator less susceptible to dirty or humid operating conditions. With a wide operating temperature range, the MAX7383 is a good choice for demanding home appliance and automotive environments.
The MAX7383 is available with factory-programmed frequencies ranging from 10MHz to 16MHz. See the full data sheet for standard frequencies and contact the factory for custom frequencies and UVLO thresholds.
The MAX7383 is available in a 5-pin SOT23 package. The MAX7383 operating temperature range is -40°C to +125°C.
- 2.7V to 5.5V Operation
- High-Speed Oscillator from 10MHz to 16MHz
- Low-Speed 32.768kHz Oscillator
- Glitch-Free Clock-Speed Switching
- ±10mA Clock-Output Drive Capability
- 2.5% Initial Accuracy
- ±50ppm/°C (typ) Frequency Drift
- 50% Duty Cycle
- 5ns Output Rise and Fall Time
- Clock Enable Input
- 4mA Operating Current at 16MHz
- 13µA Operating Current at 32.768kHz
- Typical 0.5µA Shutdown Supply Current
- -40°C to +125°C Temperature Range
- Small 5-Pin SOT23 Package
- Appliances and Controls
- Consumer Products
- Handheld Products
- Microcontroller Systems
- Portable Equipment
- White Goods
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C||Material Composition|