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74F181 データシート(PDF) 1 Page - NXP Semiconductors |
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74F181 データシート(HTML) 1 Page - NXP Semiconductors |
1 / 9 page Philips Semiconductors FAST Products Product specification 74F181 Arithmetic logic unit 1 March 3, 1989 853–0351 95947 FEATURES • Provides 16 arithmetic operation: add, subtract, compare, and double; plus 12 other arithmetic operations • 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. PIN CONFIGURATION SF00193 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 B0 A0 S3 S2 S1 S0 Cn M F0 F1 F2 VCC A1 B1 A2 B2 A3 B3 Cn+4 G P A=B F3 GND TYPE TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL) 74F181 7.0ns 43mA ORDERING INFORMATION DESCRIPTION COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C 24-Pin Plastic Slim DIP (300 mil) N74F181N 24-Pin Plastic SOL N74F181D INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS DESCRIPTION 74F (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW A0–A3 A operand inputs 1.0/3.0 20 µA/1.8mA B0–B3 B operand inputs 1.0/3.0 20 µA/1.8mA M Mode control input 1.0/1.0 20 µA/0.6mA S0–S3 Function select input 1.0/4.0 20 µA/2.4mA Cn Carry input 1.0/5.0 20 µA/3.0mA Cn+4 Carry output 50/33 1.0mA/20mA P Carry Propagate output 50/33 1.0mA/20mA G Carry Generate output 50/33 1.0mA/20mA A=B Compare output OC/33 OC/20mA F0–F3 Outputs 50/33 1.0mA/20mA NOTE: One (1.0) FAST unit load is defined as: 20 µA in the High state and 0.6mA in the Low state. OC = Open Collector |
同様の部品番号 - 74F181 |
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同様の説明 - 74F181 |
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