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74LVCH244APW 数据表(PDF) 3 Page - NXP Semiconductors |
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74LVCH244APW 数据表(HTML) 3 Page - NXP Semiconductors |
3 / 10 page Philips Semiconductors Product specification 74LVC244A 74LVCH244A Octal buffer/line driver with 5-volt tolerant inputs/outputs (3-State) 1998 May 20 3 PIN DESCRIPTION PIN NUMBER SYMBOL FUNCTION 1 1OE Output enable input (active LOW) 2, 4, 6, 8 1A0 to 1A‘3 Data inputs 3, 5, 7, 9 2Y0 to 2Y3 Bus outputs 10 GND Ground (0V) 17, 15, 13, 11 2A0 to 2A3 Bus inputs 18, 16, 14, 12 1Y0 to 1Y3 Bus outputs 19 2OE Output enable input (active-LOW) 20 VCC Positive supply voltage PIN CONFIGURATION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1OE 1A0 2Y0 1A1 2Y1 1A2 2Y2 1A3 2Y3 1Y3 GND 2A2 1Y2 2A1 1Y1 2A0 1Y0 2OE VCC 2A3 SV00212 LOGIC SYMBOL (IEEE/IEC) 1 2 18 4 16 6 14 8 12 19 11 9 13 7 15 5 17 3 EN EN SV00209 FUNCTION TABLE INPUTS OUTPUT nOE nAn nYn L L L L H H H X Z H = HIGH voltage level L = LOW voltage level X = Don’t care Z = High impedance OFF-state LOGIC SYMBOL 2 4 6 8 1 18 16 14 12 1A0 1A1 1A2 1A3 1OE 1Y0 1Y1 1Y2 1Y3 17 15 13 11 19 3 5 7 9 2A0 2A1 2A2 2A3 2OE 2Yo 2Y1 2Y2 2Y3 SV00210 FUNCTIONAL DIAGRAM 2 4 6 8 1 18 16 14 12 1A0 1A1 1A2 1A3 1OE 1Y0 1Y1 1Y2 1Y3 17 15 13 11 19 3 5 7 9 2A0 2A1 2A2 2A3 2OE 2Yo 2Y1 2Y2 2Y3 SV00211 |
类似零件编号 - 74LVCH244APW |
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类似说明 - 74LVCH244APW |
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