HC42
HC42 is 4-LINE TO 10-LINE DECODERS manufactured by Texas Instruments.
D Wide Operating Voltage Range of 2 V to 6 V
D Outputs Can Drive Up To 10 LSTTL Loads
D Low Power Consumption, 80-µA Max ICC D Typical tpd = 14 ns D ±4-m A Output Drive at 5 V
SN54HC42 . . . J OR W PACKAGE SN74HC42 . . . D, N, OR NS PACKAGE
(TOP VIEW)
01 12 23 34 45 56 67 GND 8
16 VCC 15 A 14 B 13 C 12 D 11 9 10 8 97
SN54HC42, SN74HC42 4ĆLINE TO 10ĆLINE DECODERS (1 of 10)
SCLS091D
- DECEMBER 1982
- REVISED SEPTEMBER 2003
D Low Input Current of 1 µA Max D Full Decoding of Input Logic D All Outputs Are High for Invalid BCD
Conditions
D Also for Applications as 3-Line to 8-Line
Decoders
SN54HC42 . . . FK PACKAGE (TOP VIEW)
3 2 1 20 19
17 C
NC 6
16 NC
15 D
14 9
9 10 11 12 13
- No internal connection description/ordering information
These decimal decoders consist of eight inverters and ten 4-input NAND gates. The inverters are connected in pairs to make BCD input data available for decoding by the NAND gates. Full decoding of valid input logic ensures that all inputs remain off for all invalid input conditions.
ORDERING INFORMATION
PACKAGE†
ORDERABLE PART NUMBER
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