DECIMAL DECODER HIGH SPEED (TYP.) POWER DISSIPATION (MAX.) HIGH N
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M54HC42 M74HC42
DECIMAL DECODER
HIGH SPEED (TYP.) POWER DISSIPATION (MAX.) HIGH NOISE IMMUNITY VNIH VNIL (MIN.) OUTPUT DRIVE CAPABILITY LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE |IOH| (MIN.) BALANCED PROPAGATION DELAYS tPLH tPHL WIDE OPERATING VOLTAGE RANGE (OPR) FUNCTION COMPATIBLE WITH 54/74LS42
(Plastic Package)
(Ceramic Package)
(Micro Package)
(Chip Carrier)
ORDER CODES M54HC42F1R M74HC42M1R M74HC42B1R M74HC42C1R
DESCRIPTION M54/74HC42 high speed CMOS BCD-TODECIMAL DECODER fabricated silicon gate C2MOS technology. same high speed performance LSTTL combined with true CMOS power consumption. code applied four inputs selects decimal outputs Y0-Y9, which goes fifteen gives high level outputs. This device also used 3-to-8 LINE DECODER, when input assigned disable input. This device useful code conversion, address decoding, memory selection, demultiplexing, readout decoding. inputs equipped with protection circuits against static discharge transient excess voltage. INPUT OUTPUT EQUIVALENT CIRCUIT
CONNECTIONS (top view)
Internal Connection
December 1992
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M54/M74HC42
DESCRIPTION
SYMBOL NAME FUNCTION Data Inputs Multiplexer Outputs
LOGIC SYMBOL
Ground (0V) Positive Supply Voltage
LOGIC DIAGRAM
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M54/M74HC42
FUNCTIONAL TABLE
CODE INPUTS DECIMAL OUTPUTS
ABSOLUTE MAXIMUM RATINGS
Symbol IGND Tstg Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Source Sink Current Output Ground Current Power Dissipation Storage Temperature Lead Temperature sec) Parameter Value -0.5 -0.5 -0.5 +150 Unit
Absolute Maximum Ratings those values beyond which damage device occur. Functional operation under these condition isnotimplied. derate 10mW/oC:
RECOMMENDED OPERATING CONDITIONS
Symbol Supply Voltage Input Voltage Output Voltage Operating Temperature: M54HC Series M74HC Series Input Rise Fall Time Parameter Value +125 1000 Unit
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M54/M74HC42
SPECIFICATIONS
Test Conditions Symbol Parameter High Level Output Voltage Level Output Voltage Input Leakage Current Quiescent Supply Current IO=-20 IO=-4.0 IO=-5.2 4.18 5.68 4.31 0.17 0.18 0.26 0.26 ±0.1 54HC 74HC Min. Typ. Max. 3.15 1.35 4.13 5.63 0.33 0.33
Value 74HC 54HC Min. Max. Min. Max. 3.15 1.35 4.10 5.60 0.40 0.40 3.15 1.35 Unit
High Level Input Voltage Level Input Voltage
ELECTRICAL CHARACTERISTICS Input
Test Conditions Symbol Parameter 54HC 74HC Min. Typ. Max. Value 74HC 54HC Min. Max. Min. Max. Unit
tTLH tTHL tPLH tPHL
Output Transition Time Propagation Delay Time Input Capacitance Power Dissipation Capacitance
defined value IC's internal equivalent capacitance which calculated from operating current consumption without load. (Refer Test Circuit). Average operting current obtained following equation. ICC(opr)
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M54/M74HC42
SWITCHING CHARACTERISTICS TEST WAVEFORM
TEST CIRCUIT (Opr.)
INPUT WAVEFORM SAME THAT CASE SWITCHING CHARACTERISTIC TEST
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M54/M74HC42
Plastic DIP16 (0.25) MECHANICAL DATA
MIN. 1.27 2.54 17.78 0.130 0.050 0.51 0.77 0.25 0.335 0.100 0.700 0.280 0.201 1.65 TYP. MAX. MIN. 0.020 0.030 0.020 0.010 0.787 0.065 inch TYP. MAX.
DIM.
P001C
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M54/M74HC42
Ceramic DIP16/1 MECHANICAL DATA
MIN. 2.29 1.17 0.22 0.51 0.38 17.78 2.79 0.55 1.52 0.31 1.27 10.3 8.05 5.08 0.307 0.090 0.016 0.046 0.009 0.020 0.015 0.700 0.110 0.022 0.060 0.012 0.050 0.406 0.317 0.200 TYP. MAX. 0.130 MIN. inch TYP. MAX. 0.787 0.276
DIM.
P053D
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M54/M74HC42
SO16 (Narrow) MECHANICAL DATA
DIM. MIN. 1.27 8.89 1.27 0.62 (max.) 0.149 0.181 0.019 0.35 0.19 (typ.) 0.385 0.228 0.050 0.350 0.157 0.208 0.050 0.024 0.393 0.244 TYP. MAX. 1.75 1.65 0.46 0.25 0.013 0.007 0.019 0.004 MIN. inch TYP. MAX. 0.068 0.007 0.064 0.018 0.010
P013H
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M54/M74HC42
PLCC20 MECHANICAL DATA
MIN. 1.27 1.14 7.37 1.27 5.08 0.38 0.101 0.050 0.045 9.78 8.89 2.54 0.56 8.38 0.290 0.050 0.200 0.015 0.004 TYP. MAX. 10.03 9.04 4.57 MIN. 0.385 0.350 0.165 0.100 0.022 0.330 inch TYP. MAX. 0.395 0.356 0.180
DIM.
P027A
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M54/M74HC42
Information furnished believed accurate reliable. However, SGS-THOMSON Microelectronics assumes responsability consequences such information infringement patents other rights third parties which results from use. license granted implication otherwise under patent patent rights SGS-THOMSON Microelectronics. Specifications mentioned this publication subject change without notice. This publication supersedes replaces information previously supplied. SGS-THOMSON Microelectronics products authorized ascritical components life support devices systems without express written approval SGS-THOMSON Microelectonics. 1994 SGS-THOMSON Microelectronics Rights Reserved SGS-THOMSON Microelectronics GROUP COMPANIES Australia Brazil France Germany Hong Kong Italy Japan Korea Malaysia Malta Morocco Netherlands Singapore Spain Sweden Switzerland Taiwan Thailand United Kingdom U.S.A
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