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HD74HC42 Datasheet

Part Number HD74HC42
Manufacturers Hitachi Semiconductor
Logo Hitachi Semiconductor
Description BCD-to-Decimal Decoder
Datasheet HD74HC42 DatasheetHD74HC42 Datasheet (PDF)

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 Su.

  HD74HC42   HD74HC42






Part Number HD74HC42
Manufacturers Renesas
Logo Renesas
Description BCD-to-Decimal Decoder
Datasheet HD74HC42 DatasheetHD74HC42 Datasheet (PDF)

HD74HC42 BCD-to-Decimal Decoder REJ03D0546-0200 (Previous ADE-205-418) Rev.2.00 Oct 06, 2005 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: V.

  HD74HC42   HD74HC42







BCD-to-Decimal Decoder

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) HD74HC42 Function Table BCD Inputs No. 0 1 2 3 4 5 6 7 8 9 D L L L L L L L L H H C L L L L H H H H L L L L H H H H B L L H H L L H H L L H H L L H H A L H L H L H L H L H L H L H L H Decimal Outputs 0 L H H H H H H H H H H H H H H H 1 H L H H H H H H H H H H H H H H 2 H H L H H H H H H H H H H H H H 3 H H H L H H H H H H H H H H H H 4 H H H H L H H H H H H H H H H H 5 H H H H H L H H H H H H H H H H 6 H H H H H H L H H H H H H H H H 7 H H H H H H H L H H H H H H H H 8 H H H H H H H H L H H H H H H H 9 H H H H H H H H H L H H H H H H INVALID H H H H H H Pin Arrangement 0Y 1 0 1Y 2 2Y 3 Outputs 3Y 4 4Y 5 5Y 6 6Y 7 GND 8 (Top view) 1 2 3 4 5 6 7 8 9 D C B A 16 VCC 15 A 14 B 13 C 12 D 11 9Y 10 8Y 9 7Y Outputs 2 Inputs HD74HC42 Logic Diagram 0Y 1Y A 2Y 3Y B 4Y 5Y C 6Y 7Y D 8Y 9Y 3 HD74HC42 DC Characteristics Ta = 25°C Item Input voltage Symbol VIH Ta = –40 to +85°C Max — — — 0.5 1.35 1.8 — — — — — 0.1 0.1 0.1 0.33 0.33 ±1.0 40 µA µ.


2005-03-23 : 2N2857CSM    2N2880    2N2891    2N2894    2N2894    2N2894    2N2894A    2N2894ACSM    2N2894CSM    2N2894DCSM   


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