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74F243 데이터시트(PDF) 2 Page - NXP Semiconductors |
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74F243 데이터시트(HTML) 2 Page - NXP Semiconductors |
2 / 10 page Philips Semiconductors Product specification 74F242/74F243 Transceivers 74F242 Quad Transceiver, Inverting (3-State) 74F243 Quad Transceiver (3-State) 2 1990 Aug 30 853–0356 00285 PIN CONFIGURATION 14 13 12 11 10 9 8 7 6 5 4 3 2 1 GND VCC B1 B2 B3 B0 OEB NC OEA NC A3 A0 A1 A2 SF00765 TYPE TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL) 74F242 4.3ns 31.2mA 74F243 4.0ns 66mA ORDERING INFORMATION DESCRIPTION COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C PKG DWG # 14-pin plastic DIP N74F242N, N74F243N SOT27-1 14-pin plastic SO N74F242D, N74F243D SOT108-1 INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS DESCRIPTION 74F (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW An, Bn Data inputs (74F242) 3.5/1.67 70 µA/1.0mA An, Bn Data inputs (74F243) 3.5/2.67 70 µA/1.6mA OEA Output enable input (active Low) 1.0/1.67 20 µA/1.0mA OEB Output enable input 1.0/1.67 20 µA/1.0mA An, Bn Data outputs 750/106.7 15mA/64mA NOTE: One (1.0) FAST unit load is defined as: 20 µA in the High state and 0.6mA in the Low state. LOGIC SYMBOLS B0 B1 B2 B3 11 10 98 VCC = Pin 14 GND = Pin 7 1 13 A1 A2 56 SF00767 A3 A0 34 OEA OEB 74F242 B0 B1 B2 B3 11 10 98 VCC = Pin 14 GND = Pin 7 1 13 A1 A2 56 SF00768 A3 A0 34 OEA OEB 74F243 |
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