MM5309

The MM5309 is designed as one kind of monolithic MOS integrated circuits utilizing P-channel low-threshold, enchancement mode and ion omplanted, depletion mode devices. This device provides all the logic required to built several types of clocks. Two display modes (4 or 6-digits) facilitate end-product designs of varied sophistication. It can be used in desk clocks, automobile clocks, industrial clocks and interval times.

Features of the MM5309 are:(1)50 or 60 Hz operation;(2)12 or 24 hours display format;(3)leading-zero blanking (12-hour format);(4)7-segment outputs;(5)single power supply;(6)fast and slow set controls;(7)internal multiplex oscillator;(8)for features of individual clocks.

The absolute maximum ratings of the MM5309 can be summarized as:(1)voltage at any pin: Vss+0.3 to Vss-20 V;(2)operating temperature: -25 to +70 ;(3)storage temperature: -65 to +150 ;(4)lead temperatures (soldering, 10 seconds): 300 . If you want to know more information such as the electrical characteristics about the MM5309, please download the datasheet in www.seekic.com or www.chinaicmart.com .