74F182

74F182 Carry Lookahead Generator April 1988 Revised July 1999 74F182 Carry Lookahead Generator General Description The 74F182 is a high-speed carry lookahead generator. It is generally used with the 74F181 or 74F381 4-bit arithmetic logic units to provide high-speed lookahead over word lengths of more than four bits. Features s Provides lookahead carries across a group of four ALUs s Multi-level lookahead high-speed arithmetic operation over long word lengths Ordering Code: Order Number 74F182SJ 74F182PC Package Number M16D N16E Package Description 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbols Connection Diagram © 1999 Fairchild Semiconductor Corporation DS009492 www.fairchildsemi.com 74F182 Unit Loading/Fan Out Pin Names Cn G0, G2 G1 G3 P0, P1 P2 P3 Cn+x − Cn+z G P Carry Input Carry Generate Inputs (Active LOW) Carry Generate Input (Active LOW) Carry Generate Input (Active LOW) Carry Propagate Inputs (Active LOW) Carry Propagate Input (Active LOW) Carry Propagate Input (Active LOW) Carry Outputs Carry Generate Output (Active LOW) Carry Propagate Output (Active LOW) Description U.L. HIGH/LOW 1.0/2.0 1.0/14.0 1.0/16.0 1.0/8.0 1.0/8.0 1.0/6.0 1.0/4.0 50/33.3 50/33.3 50/33.3 Input IIH/IIL Output IOH/IOL 20 µA/−1.2 mA 20 µA/−8.4 mA 20 µA/−9.6 mA 20 µA/−4.8 mA 20 µA/...