74F181

Philips Semiconductors FAST Products Product specification Arithmetic logic unit 74F181 FEATURES Provides 16 arithmetic operation: add, subtract, compare, and double; plus 12 other arithmetic operations PIN CONFIGURATION B0 1 A0 S3 S2 S1 S0 Cn M 2 3 4 5 6 7 8 9 24 VCC 23 A1 22 B1 21 A2 20 B2 19 A3 18 B3 17 G 16 C n+4 15 P 14 A=B 13 F3 Provides all 16 logic operations of two variables: Exclusive-OR, Compare, AND, NAND, NOR, OR, plus 10 other logic operations Full look-ahead carry for high speed arithmetic operation on long words 40% faster than ’S181 with only 30% ’S181 power consumption Available in 300mil-wide Slim 24-pin Dual In-Line package DESCRIPTION The 74F181 is a 4-bit high-speed parallel Arithmetic Logic Unit (ALU). Controlled by the four Function Select inputs (S0–S3) and the Mode Control input (M), it can perform all the 16 possible logic operations or 16 different arithmetic operations on active-High or active-Low operands. The Function Table lists these operations. F0 F1 10 F2 11 GND 12 SF00193 TYPE 74F181 TYPICAL PROPAGATION DELAY 7.0ns TYPICAL SUPPLY CURRENT (TOTAL) 43mA ORDERING INFORMATION DESCRIPTION 24-Pin Plastic Slim DIP (300 mil) 24-Pin Plastic SOL COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C N74F181N N74F181D INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS A0–A3 B0–B3 M S0–S3 Cn Cn+4 P G A=B F0–F3 NOTE: DESCRIPTION A operand inputs B operand inputs Mode control input Function select input Carry input Carry output Carry ...