MM54C42 MM74C42 BCD-to-Decimal Decoder
March 1988
MM54C42 MM74C42 BCD-to-Decimal Decoder
General Description
The MM54C42 MM74C42 one-of-ten decoder is a monolithic complementary MOS (CMOS) integrated circuit constructed with N- and P-channel enhancement transistors This decoder produces a logical ‘‘0’’ at the output corresponding to a four bit binary input from zero to nine and a logical ‘‘1’’ at the other outputs For binary inputs from ten to fifteen all outputs are logical ‘‘1’’
Y Y Y
High noise immunity Low power Medium speed operation
0 45 VCC (typ ) 50 nW (typ ) 10 MHz (typ ) with 10V VCC
Applications
Y Y Y
Features
Y Y
Supply voltage range Tenth power TTL compatible
3V to 15V drive 2 LPTTL loads
Y
Automotive Data terminals Instrumentation Medical electronics
Y Y Y Y
Alarm systems Industrial electronics Remote metering Computers
Schematic Diagram
TL F 5882 – 1
Truth Table
Inputs D 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
C1995 National Semiconductor Corporation
Outputs A 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 3 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 5 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 6 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 7 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 8 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 9 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1
RRD-B30M105 Printed in U S A
C 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
B 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
TL F 5882
Absolute Maximum Ratings (Note 1)
If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Voltage at Any Pin (Note 1) Operating Temperature Range MM54C42 MM74C42
b 0 3V to VCC a 0 3V b 55 C to a 125 C b 40 C to a 85 C
Storage Temperature Range Power Dissipation (PD) Dual-In-Line Small Outline Operating VCC Range Absolute Maximum VCC Lead Temperature (Soldering 10 seconds)
b 65 C to a 150 C
700 mW 500 mW 3 0V to 15V 18V 260 C
DC Electrical Characteristics
Min Max limits apply across temperature range unless otherwise noted Symbol CMOS TO CMOS VIN(1) Logical ‘‘1’’ Input Voltage VCC e 5 0V VCC e 10V VIN(0) Logical ‘‘0’’ Input Voltage VCC e 5 0V VCC e 10V VOUT(1) Logical ‘‘1’’ Output Voltage VCC e 5 0V IO e b10 mA VCC e 10V IO e b10 mA VOUT(0) Logical ‘‘0’’ Output Voltage VCC e 5 0V IO e 10 mA VCC e 10V IO e 10 mA IIN(1) IIN(0) ICC Logical ‘‘1’’ Input Current Logical ‘‘0’’ Input Current Supply Current VCC e 15V VIN e 15V VCC e 15V VIN e 0V VCC e 15V
b1 0
Parameter
Conditions
Min
Typ
Max
Units
35 80 15 20 45 90 05 10 10
V V V V V V V V mA mA 0 05 300 mA
CMOS LPTTL INTERFACE VIN(1) Logical ‘‘1’’ Input Voltage 54C VCC e 4 5V 74C VCC e 4 75V VIN(0) Logical ‘‘0’’ Input Voltage 54C VCC e 4 5V 74C VCC e 4 75V VOUT(1) Logical ‘‘1’’ Output Voltage 54C VCC e 4 5V IO e b360 mA 74C VCC e 4 75V IO e b360 mA VOUT(0) Logical ‘‘0’’ Output Voltage 54C VCC e 4 5V IO e 360 mA 74C VCC e 4 75V IO e 360 mA OUTPUT DRIVE (see 54C 74C Family Characteristics Data Sheet) TA e 25 C (short circuit current) ISOURCE ISOURCE ISINK ISINK Output Source Current Output Source Current Output Sink Current Output Sink Current VCC e 5 0V VIN(0) e 0V VOUT e 0V VCC e 10V VIN(0) e 0V VOUT e 0V VCC e 5 0V VIN(1) e 5 0V VOUT e VCC VCC e 10V VIN(1) e 10V VOUT e VCC
b 1 75 b8 0
VCC b 1 5 VCC b 1 5 08 08 24 24 04 04
V V V V V V V V
mA mA mA mA
1 75 80
Note 1 ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed Except for ‘‘Operating Temperature Range’’ they are not meant to imply that the devices should be operated at these limits The table of ‘‘Electrical Characteristics’’ provides conditions for actual device operation
2
AC Electrical Characteristics
Symbol tpd CIN CPD Parameter Propagation Delay Time to Logical ‘‘0’’ or ‘‘1’’ Input Capacitance Power Dissipation Capacitance
TA e 25 C CL e 50 pF unless otherwise specified Conditions VCC e 5 0V VCC e 10V (Note 2) (Note 3) Min Typ 200 90 5 50 Max 300 140 Units ns ns pF pF
AC Parameters are guaranteed by DC correlated testing Note 1 ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed Except for ‘‘Operating Temperature Range’’ they are not meant to imply that the devices should be operated at these limits The table of ‘‘Electrical Characteristics’’ provides conditions for actual device operation Note 2 Capacitance is guaranteed by periodic testing Note 3 CPD determines the no load AC power consumption of any CMOS device For complete explanation see 54C 74C Family Characteristics Application Note AN-90
Connection Diagram
Dual-In-Line Package
Order Number MM54C42 or MM74C42
TL F 5882 – 2
Top View
Physical Dimensions inches (millimeters)
Ceramic Dual-In-Line Package (J) Order Number MM54C42J or MM74C42J NS Package Number J16A
3
MM54C42 MM74C42 BCD-to-Decimal Decoder
Physical Dimensions inches (millimeters) (Continued)
Molded Dual-In-Line Package (N) Order Number MM54C42N or MM74C42N NS Package Number N16E
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National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications
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