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74HCT541N 데이터시트(PDF) 5 Page - NXP Semiconductors |
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74HCT541N 데이터시트(HTML) 5 Page - NXP Semiconductors |
5 / 19 page 74HC_HCT541 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved. Product data sheet Rev. 3 — 15 April 2014 5 of 19 NXP Semiconductors 74HC541; 74HTC541 Octal buffer/line driver; 3-state 5. Pinning information 5.1 Pinning 5.2 Pin description 6. Functional description [1] H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state. Fig 5. Pin configuration DIP20, SO20 and (T)SSOP20 Table 2. Pin description Symbol Pin Description OE1 1 output enable input (active LOW) A0 to A7 2, 3, 4, 5, 6, 7, 8, 9 data input GND 10 ground (0 V) Y0 to Y7 18, 17, 16, 15, 14, 13, 12, 11 data output OE2 19 output enable input (active LOW) VCC 20 supply voltage Table 3. Functional table[1] Control Input Output OE1 OE2 An Yn LL L L LL H H XH X Z HX X Z |
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