SM7831

The SM7831 is a CMOS-LSI arithmetic processor developed for decimal long-word arithmetic.It functions as the arithmetic co-processor and dramatically improves the cost performance of a microcomputer.

Features of the SM7831 are:(1)high-speed execution of decimal arithmetic operations,such as addition, subtraction, multiplication, division and square root extraction;(2)easy connection with the CPU;(3)the number of arithmetic digits can be selected by the program from 16 digits,14 digits and 12 digits;(4)convenient register control commands;(5)low power consumption 10mA typ;(6)CMOS single 5V power supply;(7)22-pin ceramic DIP.

The absolute maximum ratings of the SM7831 can be summarized as:(1)supply voltage:-0.3V to +6.5V;(2)input voltage:VSS-0.3 to VDD+0.3 V;(3)output voltage:VSS-0.3 to VDD+0.3 V;(4)allowable dissipation:250mW;(5)storage temperature:-40 to +125;(6)operating temperature:-20 to +70;(7)soldering temperature:260±5;(8)soldering time:10sec.

If you want to know more information such as the electrical characteristics about the SM7831, please download the datasheet in www.seekic.com or www.chinaicmart.com .