4-LINE TO 10-LINE DECODERS
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...
Description
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-mA 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
6
7
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)
VCC
NC
A
0
1
2
3 2 1 20 19
4
18
B
35
17 C
NC 6
16 NC
47
15 D
58
14 9
9 10 11 12 13
8
NC
GND
NC − 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
TA
PACKAGE†
ORDERABLE PART NUMBER
TOP-SIDE MARKING
PDIP − N
Tube of 25
SN74HC42N
SN74HC42N
Tube of 40
SN74HC42D
−40°C to 85°C SOIC − D
Reel of 2500 Reel of 250
SN74HC42DR SN74HC42DT
HC42
SOP − NS
Reel of 2000 SN74HC42NSR
HC42
CDIP − J
Tube of 25
SNJ54HC42J
SNJ54HC42J
−55°C to 125°C CFP − W
Tube of 150
SNJ54HC42W
SNJ54HC42W
LCCC − FK
Tube of 55
SNJ54H...
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