(PDF) HD74HC42 Datasheet - BCD-to-Decimal Decoder

Número de pieza	HD74HC42
Descripción	BCD-to-Decimal Decoder
Fabricantes	Hitachi Semiconductor
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No Preview Available ! HD74HC42 BCD-to-Decimal Decoder Description Data on the four input pins select one of the 10 outputs corresponding to the value of the BCD number on the inputs. An output will go low when selected, otherwise it remains high. If the input data is not a valid BCD number all outputs will remain high. Features • High Speed Operation: tpd = 13 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 (Ta = 25°C) 1 page HD74HC42 AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns) Ta = 25°C Ta = –40 to +85°C Item Symbol Propagation delay tPLH time VCC (V) 2.0 4.5 Min Typ Max Min — — 150 — — 13 30 — Max Unit 190 ns 38 6.0 — — 26 — 33 tPHL 2.0 — — 150 — 190 ns 4.5 — 13 30 — 38 6.0 — — 26 — 33 Output rise/fall time t TLH t THL 2.0 — — 75 — 95 ns 4.5 — 5 15 — 19 6.0 — — 13 — 16 Input capacitance Cin — — 5 10 — 10 pF Test Conditions 5 5 Page

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PDF HD74HC42 Data sheet ( Hoja de datos )