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74LS42/54LS42 pdf datasheet
消耗积分:3 |
格式:rar |
大小:133 |
2008-08-06
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54LS42/DM54LS42/DM74LS42 BCD/Decimal Decoders
General Description
These BCD-to-decimal decoders consist of eight inverters
and ten, four-input NAND gates. The inverters are connected
in pairs to make BCD input data available for decoding
by the NAND gates. Full decoding of input logic ensures
that all outputs remain off for all invalid (10±15) input conditions.
Features
Y Diode clamped inputs
Y Also for applications as 4-line-to-16-line decoders; 3-
line-to-8-line decoders
Y All outputs are high for invalid input conditions
Y Alternate Military/Aerospace device (54LS42) is available.
Contact a National Semiconductor Sales Office/
Distributor for specifications.
General Description
These BCD-to-decimal decoders consist of eight inverters
and ten, four-input NAND gates. The inverters are connected
in pairs to make BCD input data available for decoding
by the NAND gates. Full decoding of input logic ensures
that all outputs remain off for all invalid (10±15) input conditions.
Features
Y Diode clamped inputs
Y Also for applications as 4-line-to-16-line decoders; 3-
line-to-8-line decoders
Y All outputs are high for invalid input conditions
Y Alternate Military/Aerospace device (54LS42) is available.
Contact a National Semiconductor Sales Office/
Distributor for specifications.
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