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74AHCT273PW Scheda tecnica(PDF) 4 Page - NXP Semiconductors |
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74AHCT273PW Scheda tecnica(HTML) 4 Page - NXP Semiconductors |
4 / 18 page 74AHC_AHCT273_3 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 03 — 13 May 2008 4 of 18 NXP Semiconductors 74AHC273; 74AHCT273 Octal D-type flip-flop with reset; positive-edge trigger 5. Pinning information 5.1 Pinning 5.2 Pin description (1) The die substrate is attached to this pad using conductive die attach material. It can not be used as a supply pin or input. Fig 5. Pin configuration SO20 and TSSOP20 Fig 6. Pin configuration DHVQFN20 74AHC273 74AHCT273 MR VCC Q0 Q7 D0 D7 D1 D6 Q1 Q6 Q2 Q5 D2 D5 D3 D4 Q3 Q4 GND CP 001aai066 1 2 3 4 5 6 7 8 9 10 12 11 14 13 16 15 18 17 20 19 001aai067 74AHC273 74AHCT273 Transparent top view Q4 D3 Q3 D4 D2 D5 Q2 Q5 Q1 Q6 D1 D6 D0 D7 Q0 Q7 9 12 8 13 7 14 6 15 5 16 4 17 3 18 2 19 terminal 1 index area GND(1) Table 2. Pin description Symbol Pin Description MR 1 master reset input (active LOW) Q0 2 flip-flop output D0 3 data input D1 4 data input Q1 5 flip-flop output Q2 6 flip-flop output D2 7 data input D3 8 data input Q3 9 flip-flop output GND 10 ground (0 V) CP 11 clock input (LOW-to-HIGH edge-triggered) Q4 12 flip-flop output D4 13 data input D5 14 data input Q5 15 flip-flop output Q6 16 flip-flop output |
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