UM8259A

The UM8259A is a programmable interrupt controller.It is cascadable for up to 64 voctored priority interrupts without additional circuitly.It is designed to minimize the software and real time overhead in handing multi-level priority interrupts.It has several modes,permitting optimization for a variety requirements.

Features of the UM8259A are:(1)eight-level priority controller;(2)expandable to 64 levels;(3)programmable interrupt modes;(4)individual request mask capability;(5)single +5V supply(no clocks);(6)28-pin dual-in-line package.

The absolute maximum ratings of the UM8259A can be summarized as:(1)ambient temperature under bias:0 to 70;(2)storage temperature:-65 to +150;(3)voltage on any pin with respect to ground:-0.5V to +7V;(4)power dissipation:1W.

If you want to know more information such as the electrical characteristics about the UM8259A, please download the datasheet in www.seekic.com or www.chinaicmart.com .