Highly Integrated Silicon Oscillators Provide Maximum Value Over Ceramic Resonators for High-Reliability Systems
SUNNYVALE, CA-February 17, 2006-Maxim Integrated
Products (NASDAQ: MXIM) introduces the MAX7387-MAX7391 family of silicon oscillators that offers all the popular supervisory functions of medium-accuracy silicon oscillators in a single, surface-mount µMAX® package. These tiny devices switch frequencies and range from 32kHz for low-power modes, to 16MHz in high-speed mode. The MAX7387-MAX7391 are ideal for high-reliability systems, as they do not utilize external high-impedance nodes commonly found in ceramic resonator circuits. This makes them less susceptible to dirt, humidity, and high-EMI/ESD conditions. Also, because the oscillators do not rely on mechanical methods, they are less sensitive to environmental concerns such as vibration and shock.
Integrated into this oscillator family is a reset
output to interface with a microcontroller,
power-fail detection to alert the system of an
impending power failure, and a watchdog to
monitor the health of the system. These devices
eliminate the need for virtually all external
supervisors.
The MAX7387-MAX7391 family is guaranteed for
operation over the -55 degrees Celsius to +135
degrees Celsius temperature range and is
specified over the -40 degrees Celsius to +125
degrees Celsius automotive temperature range.
Total accuracy is ±4% over -40 degrees Celsius to
+125 degrees Celsius, and ±2.75% over 0 degrees
Celsius to +85 degrees Celsius. At a supply
voltage of 3.3V, the supply current is just 2.9mA
for the 16MHz device. Prices start at $0.65
(10,000-up, FOB USA).
µMAX is a registered trademark of Maxim Integrated Products, Inc.
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