HCF4008B - STMicroelectronics

HCF4008B 4-BIT FULL ADDER WITH PARALLEL CARRY OUTPUT

OF ”B” SERIES CMOS DEVICES” EY (Plastic Package) F (Ceramic Frit Seal Package) M1 (Micro Package) C1 (Plastic Chip Carrier) ORDER CODES : HCC4008BF HCF4008BM1 HCF4008BEY HCF4008BC1 PIN CONNECTIONS DESCRIPTION The HCC4008B (extended temperature range) and HCF4008B (intermediate temperature range) are monolithic integrated circuits, available in 16-lead.

Features

st look ahead carry provision from stage to stage. Circuitry is included to provide a fast ”parallel-carry-out” to permit high-speed operation in arithmetic sections using several HCC/HCF 4008B’s. HCC/HCF4008B inputs include the four sets of bits to be added, A1 to A4 and B1 to B4, in addition to the ”Carry In” bit from a previous section. HCC/HCF4008B outputs include the four sum bits, S1 to S4. In addition to the high speed ”parallel-carryout” which may be utilized at a succeeding HCC/HCF4008B section. June 1989 1/13 HCC/HCF4008B ABSOLUTE MAXIMUM RATINGS Symbol V DD
* Vi II Pto t Parameter .