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M54HC4028

Part Number	M54HC4028
Manufacturer	ST Microelectronics
Description	BCD TO DECIMAL DECODER
Published	Apr 23, 2005
Detailed Description	M54HC4028 M74HC4028 BCD TO DECIMAL DECODER . . . . . . . . HIGH SPEED tPD = 18 ns (TYP.) AT VCC = 5 V LOW POWER DISSIP...
Datasheet	M54HC4028 PDF File

Overview

M54HC4028 M74HC4028 BCD TO DECIMAL DECODER .
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HIGH SPEED tPD = 18 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 4028B B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HC4028F1R M74HC4028M1R M74HC4028B1R M74HC4028C1R PIN CONNECTIONS (top view) DESCRIPTION The M54/74HC4028 is a high speed CMOS BCDTO-DECIMAL DECODER fabricated in silicon gate 2 C MOS 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 to D) provides a high level at the selected one of the decimal decoded outputs.
An illegal BCD code such as eleven to fifteen gives a low level at all outputs.
The device also can be used as 3-TO8-LINE DECODER, when D input is assigned as a disable input.
The device is useful for code conversion, address decoding, memory selection, demultiplexing, or read out decoding.
All inputs are equipped with protection circuits against static discharge and transient excess voltage.
October 1992 NC = No Internal Connection 1/10 M54/M74HC4028 TRUTH TABLE INPUTS D L L L L L L L L H H H H C L L L L H H H H L L X H B L L H H L L H H L L H X A L H L H L H L H L H X X Y0 H L L L L L L L L L L L Y1 L H L L L L L L L L L L Y2 L L H L L L L L L L L L Y3 L L L H L L L L L L L L OUTPUTS Y4 L L L L H L L L L L L L Y5 L L L L L H L L L L L L Y6 L L L L L L H L L L L L Y7 L L L L L L L H L L L L Y8 L L L L L L L L H L L L Y9 L L L L L L L L L H L L SELECTED OUTPUTT Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 NOTE NOTE X: DON’T CARE LOGIC DIAGRAM 2/10 M54/ M74HC4028 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1, 2, 3, 4, 5, 6, 7, ...

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