74F382

74F382 4-Bit Arithmetic Logic Unit May 1988 Revised August 1999 74F382 4-Bit Arithmetic Logic Unit General Description The 74F382 performs three arithmetic and three logic operations on two 4-bit words, A and B. Two additional Select input codes force the Function outputs LOW or HIGH. An Overflow output is provided for convenience in twos complement arithmetic. A Carry output is provided for ripple expansion. For high-speed expansion using a Carry Lookahead Generator, refer to the 74F381 data sheet. Features s Performs six arithmetic and logic functions s Selectable LOW (clear) and HIGH (preset) functions s LOW input loading minimizes drive requirements s Carry output for ripple expansion s Overflow output for twos complement arithmetic Ordering Code: Order Number 74F382SC 74F382SJ 74F382PC Package Number M20B M20D N20A Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-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 IEEE/IEC © 1999 Fairchild Semiconductor Corporation DS009529 www.fairchildsemi.com 74F382 Unit Loading/Fan Out Pin Names A0–A3 B0–B3 S0–S2 Cn Cn + 4 OVR F0–F3 Description A Operand Inputs B Operand Inputs Function Select Inputs Carry Input Carry Output Overflow Output Function Outputs U.L....