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74ABT544N 数据表(PDF) 4 Page - NXP Semiconductors |
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74ABT544N 数据表(HTML) 4 Page - NXP Semiconductors |
4 / 8 page 9397 750 14756 © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Product data sheet Rev. 03 — 20 April 2005 4 of 19 Philips Semiconductors 74ABT544 Octal latched transceiver with dual enable; inverting; 3-state 6. Pinning information 6.1 Pinning 6.2 Pin description Fig 4. Pin configuration 544 VCC OEBA EBA A0 B0 A1 B1 A2 B2 A3 B3 A4 B4 A5 B5 A6 B6 A7 B7 EAB LEAB GND OEAB 001aac755 1 2 3 4 5 6 7 8 9 10 11 12 14 13 16 15 18 17 20 19 22 21 24 23 LEBA Table 3: Pin description Symbol Pin Description LEBA 1 B-to-A latch enable input (active LOW) OEBA 2 B-to-A output enable input (active LOW) A0 3 port A, 3-state output 0 A1 4 port A, 3-state output 1 A2 5 port A, 3-state output 2 A3 6 port A, 3-state output 3 A4 7 port A, 3-state output 4 A5 8 port A, 3-state output 5 A6 9 port A, 3-state output 6 A7 10 port A, 3-state output 7 EAB 11 A-to-B enable input (active LOW) GND 12 ground (0 V) OEAB 13 A-to-B output enable input (active LOW) LEAB 14 A-to-B latch enable input (active LOW) B7 15 port B, 3-state output 7 B6 16 port B, 3-state output 6 B5 17 port B, 3-state output 5 B4 18 port B, 3-state output 4 |
类似零件编号 - 74ABT544N |
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类似说明 - 74ABT544N |
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