
STMicroelectronics
DESCRIPTION
HCF40182B is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology available in DIP and SOP packages. He is a high speed look-ahead carry generator capable of anticipating a carry across four binary adders or adder groups. HCF40182B is cascadable to perform full look-ahead across n-bit adders. Carry propagate-carry, and generate-carry functions are provided as enumerated in the terminal designation below.
■ GENERATES HIGH-SPEED CARRY ACROSS FOUR ADDERS OR ADDER GROUPS
■ HIGH-SPEED OPERATIONAL: tPHL = tPLH= 100 ns (typ.) AT VDD= 10V
■ CASCADABLE FOR FAST CARRIES OVER N BITS
■ DESIGNED FOR USE WITH HCF40181B ALU
■ STANDARDIZED, SYMMETRICAL OUTPUT CHARACTERISTICS
■ QUIESCENT CURRENT SPECIFIED UP TO 20V
■ INPUT LEAKAGE CURRENT
II= 100nA (MAX) AT VDD= 18V TA= 25°C
■ 100% TESTED FOR QUIESCENT CURRENT
■ MEETS ALL REQUIREMENTS OF JEDEC JESD13B "STANDARD SPECIFICATIONS FOR DESCRIPTION OF B SERIES CMOS DEVICES"