5041 series

SEIKO NPC CORPORATION—10

Power-saving Pull-up Resistor

input susceptibility to external noise. However, the pull-up resistance ties the INHN pin HIGH level to prevent

external noise from unexpectedly stopping the output.

Oscillation Detector Function

The 5041 series also feature an oscillation detector circuit. This circuit functions to disable the outputs until the

oscillator circuit starts and oscillation becomes stable. This alleviates the danger of abnormal oscillator output

at oscillator start-up when power is applied or when INHN is switched.