The MAX7382 is a silicon oscillator that replaces ceramic resonators, crystals, and crystal oscillator modules as the clock source for microcontrollers. It features resistance to vibration and EMI, making it suitable for 3V, 3.3V, and 5V applications. The MAX7382 has a factory-programmed oscillator and a microprocessor power-on-reset supervisor. It has a high-output-drive current and no high-impedance nodes, making it less susceptible to dirty or humid operating conditions. It is a good choice for demanding home appliance and automotive environments.
The MAX7382 silicon oscillator replaces ceramic resonators, crystals, and crystal‑oscillator modules as a clock source for microcontrollers in 3 V, 3.3 V, and 5 V applications. It includes a factory‑programmed oscillator and an integrated power‑on‑reset (POR) supervisor, and is resistant to vibration, EMI, and harsh environmental conditions.
The device is offered in a 5‑pin SOT‑23 package with selectable reset‑output styles (push‑pull active‑high, push‑pull active‑low, or open‑drain). Standard frequencies range from 10 MHz to 32 MHz, and the part operates over –40 °C to +125 °C. Detailed electrical characteristics, pin descriptions, and application notes are provided in the data sheet.
| Operating Supply Voltage | 2.7 V to 5.5 V |
|---|---|
| Frequency Range | 10 MHz to 32 MHz |
| Clock Output Drive Capability | +10 mA |
| Duty Cycle | 50 % |
| Output Rise/Fall Time | 5 ns |
| Jitter (typical at 16 MHz) | 80 ps p‑p |
| Operating Temperature Range | -40 °C to +125 °C |
The MAX7382 operates from 2.7 V up to 5.5 V.
It can source up to +10 mA on the clock output.
The device is offered with push‑pull active‑high, push‑pull active‑low, or open‑drain active‑low reset outputs.
It is specified for –40 °C to +125 °C (extended testing to +135 °C).