HEF4008B

INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC The IC04 LOCMOS HE4000B Logic Package Outlines/Information HEF, HEC HEF4008B MSI 4-bit binary full adder Product specification File under Integrated Circuits, IC04 January 1995 Philips Semiconductors Product specification 4-bit binary full adder DESCRIPTION The HEF4008B is a 4-bit binary full adder with two 4-bit data inputs (A0 to A3, B0 to B3), a carry input (CIN), four sum outputs (S0 to S3), and a carry output (COUT). The IC uses full look-ahead across 4-bits to generate COUT. This minimizes the necessity for extensive look-ahead and carry-cascading circuits. HEF4008B MSI Fig.2 Pinning diagram. PINNING A0 to A3 B0 to B3 S0 to S3 CIN COUT data inputs data inputs sum outputs carry input carry output TRUTH TABLE (one adder) CIN L L L L H Fig.1 Functional diagram. H H H HEF4008BP(N): HEF4008BD(F): HEF4008BT(D): 16-lead DIL; plastic (SOT38-1) 16-lead DIL; ceramic (cerdip) (SOT74) 16-lead SO; plastic (SOT109-1) ( ): Package Designator North America FAMILY DATA, IDD LIMITS category MSI See Family Specifications A L L H H L L H H B L H L H L H L H COUT L L L H L H H H S L H H L H L L H January 1995 2 Philips Semiconductors Product specification 4-bit binary full adder HEF4008B MSI Fig.3 Logic diagram. January 1995 3 Philips Semiconductors Product specification 4-bit binary full adder AC CHARACTERISTICS VSS = 0 V; Tamb = ...