(PDF) 74HC298 Datasheet - Quad. 2-input Multiplexers (with storage)

Número de pieza	74HC298
Descripción	Quad. 2-input Multiplexers (with storage)
Fabricantes	Hitachi
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No Preview Available ! HD74HC298 Quad. 2-input Multiplexers (with storage) Description This circuit is controlled by the signals word select and clock. When the word select input is taken low word 1 (A1, B1, C1 and D1) is presented to the inputs of the flip-flops, and when word select is high word 2 (A2, B2, C2 and D2) is presented to the inputs of the flip-flops. The selected word is clocked to the output terminals on the negative edge of the clock pulse. Features • High Speed Operation: tpd (Clock to Q) = 19 ns typ (CL = 50 pF) • High Output Current: Fanout of 10 LSTTL Loads • Wide Operating Voltage: VCC = 2 to 6 V • Low Input Current: 1 µA max • Low Quiescent Supply Current: ICC (static) = 4 µA max Function Table Inputs Outputs Word Select Clock QA QB QC QD L a1 b1 c1 d1 H a2 b2 c2 d2 XH QA0 QB0 QC0 QD0 1 page 19.20 20.00 Max 16 9 1 1.3 1.11 Max 8 Unit: mm 7.62 2.54 ± 0.25 0.48 ± 0.10 0.25 + – 0.13 0.05 0° – 15° Hitachi Code JEDEC EIAJ Weight (reference value) DP-16 Conforms Conforms 1.07 g 5 Page

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PDF 74HC298 Data sheet ( Hoja de datos )