BCD TO DECIMAL DECODER
M54HC42 M74HC42
. HIGH SPEED tPD = 13 ns (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION ICC = 4 µA (MAX.) AT TA = 25 °C
. ...
Description
M54HC42 M74HC42
. HIGH SPEED tPD = 13 ns (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION ICC = 4 µA (MAX.) AT TA = 25 °C
. HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.)
. OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS
. SYMMETRICAL OUTPUT IMPEDANCE |IOH| = IOL = 4 mA (MIN.)
. BALANCED PROPAGATION DELAYS tPLH = tPHL
. WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V
. PIN AND FUNCTION COMPATIBLE WITH 54/74LS42
DESCRIPTION
The M54/74HC42 is a high speed CMOS BCD-TODECIMAL DECODER fabricated in silicon gate C2MOS technology. It has the same high speed performance of LSTTL combined with true CMOS low power consumption. A BCD code applied to the four inputs A-D selects one of ten decimal outputs Y0-Y9, which goes low to fifteen gives a high level at all outputs. This device also can be used as a 3-to-8 LINE DECODER, when the D input is assigned as a disable input. This device is useful for code conversion, address decoding, memory selection, demultiplexing, or readout decoding. All inputs are...
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