M74HC42B1R;M74HC42RM13TR;M74HC42TTR;中文规格书,Datasheet资料

BCD TO DECIMAL DECODER

s

s

s

s

s

s

s

HIGH SPEED :

tPD = 14ns (TYP.) at VCC = 6VLOW POWER DISSIPATION:ICC =4µA(MAX.) at TA=25°CHIGH NOISE IMMUNITY:

VNIH = VNIL = 28 % VCC (MIN.)

SYMMETRICAL OUTPUT IMPEDANCE:|IOH| = IOL = 4mA (MIN)

BALANCED PROPAGATION DELAYS:tPLH ≅ tPHL

WIDE OPERATING VOLTAGE RANGE:VCC (OPR) = 2V to 6V

PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 42

DIPSOPTSSOPORDER CODES

PACKAGEDIPSOPTSSOP

TUBEM74HC42B1RM74HC42M1R

DESCRIPTION

The M74HC42 is an high speed CMOS BCD TODECIMAL DECODER fabricated with silicon gateC2MOS technology.

A BCD code applied to the four inputs A-D selectsone of ten decimal outputs Y0 - Y9, which goeslow to fifteen gives a high level at all outputs. Thisdevice also can be used as a 3 to LINE

PIN CONNECTION AND IEC LOGIC SYMBOLS

bOelos terP)s(tcudoO -DECODER, when the D input is assigned as a

disable input. This device is useful for codeconversion, address decoding, memory selection,demultiplexing, or readout decoding.

All inputs are equipped with protection circuitsagainst static discharge and transient excessvoltage.

elosbrP tetcudoT & R

)(sM74HC42RM13TR

M74HC42TTR

July 20011/9

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M74HC42

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

PIN No15, 14, 13,

12

1, 2, 3, 4, 5, 6, 7, 8, 9, 10,

11816

SYMBOLA, B, C, DY0 TO Y9GNDVcc

NAME AND FUNCTIONData InputsMultiplexer OutputsGround (0V)

Positive Supply Voltage

FUNCTIONAL TABLE

BCD INPUTS

CODE No

01234567101112131415

DLLLLLLLLHHHHHHHH

CLLLLHHHHLLLLHHHH

BLLHHLLHHLLHHLLHH

ALHLHLHLHLHLHLHLH

Y0LHHHHHHHHHHHHHHH

Y1HLHHHHHHHHHHHHHH

Y2HHLHHHHHHHHHHHHH

DECIMAL OUTPUTSY3HHHLHHHHHHHHHHHH

Y4HHHHLHHHHHHHHHHH

Y5HHHHHLHHHHHHHHHH

Y6HHHHHHLHHHHHHHHH

Y7HHHHHHHLHHHHHHHH

bOelos terP)s(tcudoO -elosbrP teudoctY8H

HHHHHHHLHHHHHHH

)(sHHHHHHHHHLHHHHHH

Y9

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M74HC42

LOGIC DIAGRAM

This logic diagram has not be used to estimate propagation delaysABSOLUTE MAXIMUM RATINGS

SymbolVCCVIVOIIKIOKIO

Supply Voltage

DC Input Voltage

DC Output Voltage

sbOTL

ICC or IGNDDC VCC or Ground Current

PD

Power DissipationStorage TemperatureLead Temperature (10 sec)

Tstg

eloDC Input Diode CurrentDC Output Diode CurrentDC Output Current

terP)s(tcudoParameter

O -elosbrP tetcudo )(sValue-0.5 to +7-0.5 to VCC + 0.5-0.5 to VCC + 0.5

± 20± 20± 25± 50500(*)-65 to +150

300

UnitVVVmAmAmAmAmW°C°C

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied

(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C

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M74HC42

RECOMMENDED OPERATING CONDITIONS

SymbolVCCVIVOToptr, tf

Supply VoltageInput VoltageOutput VoltageOperating TemperatureInput Rise and Fall Time

VCC = 2.0VVCC = 4.5VVCC = 6.0V

Parameter

Value2 to 60 to VCC0 to VCC-55 to 1250 to 10000 to 5000 to 400

UnitVVV°Cnsnsns

DC SPECIFICATIONS

Test Condition

Symbol

Parameter

VCC(V)2.04.56.02.04.56.02.04.56.04.56.0

VOL

Low Level Output Voltage

2.04.56.04.5

IO=-20 µAIO=-20 µAIO=-20 µAIO=-4.0 mAIO=-5.2 mAIO=20 µAIO=20 µAIO=20 µA

TA = 25°CMin.1.53.1.2

Typ.

Max.

Value-40 to 85°CMin.1.53.1.2

Max.

-55 to 125°CMin.1.53.1.2

Max.

VIH

High Level Input Voltage

Low Level Input Voltage

High Level Output Voltage

VIL

0.51.351.8

1.94.45.9

VOH

IIICC

bOAC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)

Test ConditionVCC

(V)2.04.56.02.04.56.0

TA = 25°CMin.

Typ.30871614

Max.7515131302622

Value-40 to 85°CMin.

Max.9519161653328

-55 to 125°CMin.

Max.11022191953933

nsUnit

elosInput Leakage Current

Quiescent Supply Current

terP(tcudo6.06.06.0

O - s)4.185.68

elosb2.04.56.04.315.80.00.00.00.170.18

rP te1.94.45.94.135.63

0.5

1.351.8

tcudo1.94.45.94.105.60

0.10.10.1

)(sVV

Unit

0.51.351.8

V

0.10.10.10.260.26± 0.14

0.10.10.10.400.40± 180

µAµAV

IO=4.0 mAIO=5.2 mA

0.330.33± 140

VI = VCC or GNDVI = VCC or GND

SymbolParameter

tTLH tTHLOutput Transition

TimetPLH tPHLPropagation Delay

Time

ns

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M74HC42

CAPACITIVE CHARACTERISTICS

Test Condition

Symbol

Parameter

VCC(V)5.05.0

TA = 25°CMin.

Typ.560

Max.10

Value-40 to 85°CMin.

Max.10

-55 to 125°CMin.

Max.10

pFpFUnit

CINCPD

Input CapacitancePower Dissipation Capacitance (note 1)

1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC

TEST CIRCUIT

CL = 50pF or equivalent (includes jig and probe capacitance)RT = ZOUT of pulse generator (typically 50Ω)

WAVEFORM : PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle)

bOelos terP)s(tcudoO -elosbrP tetcudo )(s5/9http://oneic.com/

M74HC42Plastic DIP-16 (0.25) MECHANICAL DATAmm.DIM.MIN.a1Bbb1DEee3FILZ3.31.278.52.17.787.15.10.510.770.50.25200.3350.1000.7001.65TYPMAX.MIN.0.0200.0300.0200.0100.7870.065TYP.MAX.inchbOelos terP)s(tcudoO -elosbrP tetcudo )(s0.2800.2010.0500.130P001C6/9http://oneic.com/

M74HC42SO-16 MECHANICAL DATADIM.Aa1a2bb1Cc1DEee3FGLMS3.84.60.59.85.81.278.4.05.31.270.620.1490.181106.20.350.190.5° (typ.)0.3850.2280.0500.3500.1mm.MIN.TYPMAX.1.750.21.650.460.250.0130.0070.0190.003MIN.inchTYP.MAX.0.0680.0070.00.0180.0100.019 8°(max.)bOelos terP)s(tcudoO -elosbrP tetcudo )(s0.2440.1570.2080.0500.0240.393PO13H7/9http://oneic.com/

M74HC42TSSOP16 MECHANICAL DATAmm.DIM.MIN.AA1A2bcDEE1eKL0°0.450.600.050.80.190.094.96.24.356.44.40.65 BSC8°0.751TYPMAX.1.20.151.050.300.205.16..480.0020.0310.0070.0040.1930.2440.1690.1970.2520.0040.039MIN.TYP.MAX.0.0470.0060.0410.0120.00inch0.173AA2A1bOelos terP)s(tcudobeDO -elosbc0°0.018rP te0.0256 BSCtcudo )(s0.2010.2600.1768°0.0300.024KLEE1PIN 1 IDENTIFICATION10080338D8/9http://oneic.com/

M74HC42

bOelos terP)s(tcudoO -elosbrP tetcudo )(sInformation furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for theconsequences of use of such information nor for any infringement of patents or other rights of third parties which may result fromits use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specificationsmentioned in this publication are subject to change without notice. This publication supersedes and replaces all informationpreviously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices orsystems without express written approval of STMicroelectronics.

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M74HC42B1R

M74HC42RM13TR

M74HC42TTR