поискавой системы для электроныых деталей |
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74LVT543 датащи(PDF) 3 Page - NXP Semiconductors |
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74LVT543 датащи(HTML) 3 Page - NXP Semiconductors |
3 / 12 page Philips Semiconductors Product specification 74LVT543 3.3V Octal latched transceiver with dual enable (3-State) 1998 Feb 19 3 LOGIC SYMBOL (IEEE/IEC) 14 11 13 1 23 2 3 22 421 520 619 718 817 10 15 916 1EN3 G1 IC5 ZEN4 (AB) GZ. ZC6 V3 5D 6D 2V SV00028 LOGIC DIAGRAM D LE Q D LE Q DETAIL A 22 B0 21 B1 4 A1 20 B2 5 A2 19 B3 6 A3 18 B4 7 A4 17 B5 8 A5 16 B6 9 A6 15 B7 10 A7 DETAIL A X 7 13 OEAB 11 EAB 14 LEAB 2 OEBA 23 EBA 1 LEBA 3 A0 SV00029 PIN DESCRIPTION PIN NUMBER SYMBOL FUNCTION 14, 1 LEAB / LEBA A to B / B to A Latch Enable input (active-Low) 11, 23 EAB / EBA A to B / B to A Enable input (active-Low) 13, 2 OEAB / OEBA A to B / B to A Output Enable input (active-Low) 3, 4, 5, 6, 7, 8, 9, 10 A0 – A7 Port A, 3-State outputs 22, 21, 20, 19, 18, 17, 16, 15 B0 – B7 Port B, 3-State outputs 12 GND Ground (0V) 24 VCC Positive supply voltage FUNCTION TABLE INPUTS OUTPUTS STATUS OEXX EXX LEXX An or Bn Bn or An STATUS H X X X Z Disabled X H X X Z Disabled L L ↑ ↑ L L h l Z Z Disabled + Latch L L L L ↑ ↑ h l H L Latch + Display L L L L L L H L H L Transparent L L H X NC Hold H = High voltage level h = High voltage level one set-up time prior to the Low-to-High transition of LEXX or EXX (XX = AB or BA) L = Low voltage level l = Low voltage level one set-up time prior to the Low-to-High transition of LEXX or EXX (XX = AB or BA) X = Don’t care ↑ = Low-to-High transition of LEXX or EXX (XX = AB or BA) NC= No change Z = High impedance or “off” state |
Аналогичный номер детали - 74LVT543 |
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Аналогичное описание - 74LVT543 |
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