max7383 is a clock oscillator produced by dinghao electronic technology co., LTD., which has a high-speed oscillator and a 32.768khz oscillator. The clock output can be switched at any time between the high-speed clock and the 32.768khz clock for low-power operation. The high-output-drive current and the absence of high-impedance nodes make the oscillator less susceptible to dirty or humid operating conditions. With a wide operating temperature range as standard, the MAX7383 is a good choice for demanding home appli- ance and automotive environments.
The MAX7383 dual‑speed silicon oscillator replaces ceramic resonators, crystals, and crystal‑oscillator modules as the primary and secondary clock source for microcontrollers in 3 V, 3.3 V, and 5 V applications. It provides a factory‑programmed high‑speed oscillator (10 MHz‑32 MHz) and a fixed 32.768 kHz low‑speed oscillator, with glitch‑free clock‑speed switching and a +10 mA push‑pull output drive.
The device is supplied in a 5‑pin SOT‑23 package, operates from 2.7 V to 5.5 V, and is rated for –40 °C to +125 °C (extended to +135 °C). It features low jitter (80 ps p‑p at 16 MHz), 50 % duty cycle, and low supply current (4 mA at 16 MHz, 13 pA at 32 kHz).
| Frequency Range | 10 MHz to 32 MHz (high‑speed) and 32.768 kHz (low‑speed) |
|---|---|
| Clock‑Output Drive Capability | +10 mA |
| Operating Temperature Range | -40 °C to +125 °C |
| Package | 5‑pin SOT‑23 |
| Jitter (at 16 MHz) | 80 ps p‑p |
| Duty Cycle | 50 % |
| Output Rise/Fall Time | 5 ns |
The device is rated for –40 °C to +125 °C.
The clock output can source up to +10 mA.
Factory‑programmed frequencies are available from 10 MHz to 32 MHz.