CF5019 series

SEIKO NPC CORPORATION —9

FUNCTIONAL DESCRIPTION

Standby Function

When INHN goes LOW, the oscillator stops and the oscillator output on Q becomes high impedance.

Power-saving Pull-up Resistor

The INHN pull-up resistance changes in response to the input level (HIGH or LOW). When INHN goes LOW

(standby state), the pull-up resistance becomes large to reduce the current consumption during standby.

INHN

Q

Oscillator

HIGH (or open)

Normal operation

LOW

High impedance

Stopped