HCF40108B Datasheet (STMicroelectronics) - 4 x 4 MULTIPORT REGISTER

HCF40108B, 4 x 4 MULTIPORT REGISTER

OF B SERIES CMOS DEVICES” no new data is netered.

In either case, the contents of any word may be accessed via the read address lines independent of the state of the CLOCK input.

EY (Plastic Package) F (Ceramic Package) M1 (Micro Package) C1 (Chip Carrier) ORDER CODES : HCC40108BF HCF40108BM1

HCC40108B HCF40108B 4 x 4 MULTIPORT REGISTER .

FOUR 4-BIT REGISTERS ONE INPUT AND TWO OUTPUT BUSES UNLIMITED EXPANSION IN BIT AND WORD DIRECTION DATA LINES HAVE LATCHED INPUTS 3-STATE OUTPUTS SEPARATE CONTROL OF EACH BUS, ALLOWING SIMULTANEOUS INDEPENDET READING AND ANY OF FOUR REGISTERS ON BUS A AND BUS B AND INDEPENDENT WRITING INTO ANY ANY OF THE FOUR REGISTERS 40108B IS PIN COMPATIBLE WITH INDUSTRY TYPE MC14580 STANDARDIZED, SYMMETRICAL OUTPUT CHARACTERISTICS QUIESC