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74ALS20 데이터시트(PDF) 2 Page - NXP Semiconductors |
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74ALS20 데이터시트(HTML) 2 Page - NXP Semiconductors |
2 / 7 page Philips Semiconductors Product specification 74ALS20A Dual 4-input NAND gate 2 1996 Jul 01 853–0859 01670 TYPE TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL) 74ALS20A 4.5ns 0.65mA ORDERING INFORMATION ORDER CODE DESCRIPTION COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C DRAWING NUMBER 14-pin plastic DIP 74ALS20AN SOT27-1 14-pin plastic SO 74ALS20AD SOT108-1 PIN CONFIGURATION 14 13 12 11 10 9 8 7 6 5 4 3 2 1 1A 1B NC 1C 1D 1Y GND 2Y 2A 2B NC 2C 2D VCC SC00024 INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS DESCRIPTION 74ALS (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW nA, nB, nC, nD Data inputs 1.0/1.0 20 µA/0.1mA nY Data outputs 20/80 0.4mA/8mA NOTE: One (1.0) ALS unit load is defined as: 20 µA in the High state and 0.1mA in the Low state. LOGIC SYMBOL VCC = Pin 14 GND = Pin 7 1245 9 10 12 13 1A 1B 1C 1D 2A 2B 2C 2D 1Y 2Y 68 SC00025 IEC/IEEE SYMBOL SF00068 & 6 8 1 2 4 5 9 10 12 13 LOGIC DIAGRAM VCC = Pin 14 GND = Pin 7 1A 1B 1Y 6 1 2 SC00026 1C 4 1D 5 2A 2B 2Y 8 9 10 2C 12 2D 13 FUNCTION TABLE INPUTS OUTPUT nA nB nC nD nY H H H H L L X X X H X L X X H X X L X H X X X L H H = High voltage level L = Low voltage level X = Don’t care |
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