The part has been published 2011 times. Mounting it with Surface Mount is recommended. A minimum working temperature of 0°C must be maintained for this device. Circuits application is recommended that the operating temperature be less than 70°C.
ICS9LRS4123AKLF Features
ICS9LRS4123AKLF Applications
There are a lot of Integrated Device Technology (IDT) ICS9LRS4123AKLF application specific timer applications.