HCC40208B

HCC/HCF40208B 4 x 4 MULTIPORT REGISTER . . . . . . . . . . . . . FOUR 4-BIT REGISTERS ONE INPUT AND TWO OUTPUT BUSES UNLIMITED EXPANSION IN BIT AND WORD DIRECTIONS DATA LINES HAVE LATCHED INPUTS 3-STATE OUTPUTS SEPARATE CONTROL OF EACH BUS, ALLOWING SIMULTANEOUS INDEPENDENT READING OF ANY OF FOUR REGISTERS ON BUS A AND BUS B AND INDEPENDENT WRITING INTO ANY OF THE FOUR REGISTERS 40108B IS PIN-COMPATIBLE WITH INDUSTRY TYPE MC14580 STANDARDIZED, SYMMETRICAL OUTPUT CHARACTERISTICS QUIESCENT CURRENT SPECIFIED AT 20V FOR HCC DEVICE 5V, 10V, AND 15V PARAMETRIC RATINGS INPUT CURRENT OF 100nA AT 18V AND 25°C FOR HCC DEVICE 100% TESTED FOR QUIESCENT CURRENT MEETS ALL REQUIREMENTS OF JEDEC TENTATIVE STANDARD N° 13A, ”STANDARD SPECIFICATIONS FOR DESCRIPTION OF ”B” SERIES CMOS DEVICES” BEY (Plastic Package) BF (Ceramic Frit Seal Package) BM1 (Micro Package) ORDER CODES : HCC40208BF HCF40208BEY HCF40208BM1 PIN CONNECTIONS DESCRIPTION The HCC40208B (extended temperature range) and HCF40208B (intermediate temperature range) are monolithic integrated circuits, available in 24-lead dual in-line plastic or ceramic package and plastic micro package. The HCC/HCF40208B is a 4 x 4 multiport register containing four 4-bit registers, write address decoder, two separate read address decoders, and two 3-state output buses. When the ENABLE input is low, the corresponding output bus is switched, independently of the clock to a high-impedance state. The high-impedance third state provides the outp...