MM54C157/MM74C157 Quad 2-Input Multiplexers General Description Features These multiplexers are monolithic complementary MOS (CMOS) integrated circuits constructed with N- and P-channel enhancement transistors. They consist of four 2-input multiplexers with common select and enable inputs. When the enable input is at logical ‘‘0’’ the four outputs assume the values as selected from the inputs. When the enable input is at logical ‘‘1’’, the outputs assume logical ‘‘0’’. Select decoding is done internally resulting in a single select input only. Y Y Y Y Supply voltage range High noise immunity Low power Tenth power TTL compatible 3V to 15V 0.45 VCC (typ.) 50 nW (typ.) Drive 2 LPTTL loads Logic & Connection Diagrams Dual-In-Line Package TL/F/5894 – 2 Top View Order Number MM54C157 or MM74C157 TL/F/5894 – 1 Truth Table Guaranteed Noise Margin as a Function of VCC Enable Select A B Output Y 1 0 0 0 0 X 0 0 1 1 X 0 1 X X X X X 0 1 0 0 1 0 1 74L Compatibility TL/F/5894 – 4 TL/F/5894 – 3 C1995 National Semiconductor Corporation TL/F/5894 RRD-B30M105/Printed in U. S. A. MM54C157/MM74C157 Quad 2-Input Multiplexers February 1988 Absolute Maximum Ratings (Note 1) Voltage at Any Pin 18V Power Dissipation (PD) Dual-In-Line Small Outline Operating VCC Range b 0.3V to VCC a 0.3V Operating Temperature Range MM54C157 MM74C157 b 65§ C to a 150§ C Storage Temperature Range Maximum VCC Voltage If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. b 55§ C to a 125§ C b 40§ C to a 85§ C 700 mW 500 mW 3V to 15V 260§ C Lead Temperature (Soldering, 10 sec.) DC Electrical Characteristics Min/Max limits apply across temperature range unless otherwise noted Symbol Parameter Conditions Min Typ Max Units CMOS TO CMOS VIN(1) Logical ‘‘1’’ Input Voltage VCC e 5V VCC e 10V VIN(0) Logical ‘‘0’’ Input Voltage VCC e 5V VCC e 10V VOUT(1) Logical ‘‘1’’ Output Voltage VCC e 5V VCC e 10V VOUT(0) Logical ‘‘0’’ Output Voltage VCC e 5V VCC e 10V IIN(1) Logical ‘‘1’’ Input Current VCC e 15V IIN(0) Logical ‘‘0’’ Input Current VCC e 15V ICC Supply Current VCC e 15V 3.5 8.0 V V 1.5 2.0 4.5 9.0 V V 0.005 b 1.0 V V 0.5 1.0 V V 1.0 mA b 0.005 0.05 mA 60 mA CMOS TO TENTH POWER 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 VCC b 1.5 VCC b 1.5 V V 0.8 0.8 2.4 2.4 V V V V 0.4 0.4 V V OUTPUT DRIVE (See 54C/74C Family Characteristics Data Sheet) (Short Circuit Current) ISOURCE Output Source Current VCC e 5V, VIN(0) e 0V TA e 25§ C, VOUT e 0V b 1.75 mA ISOURCE Output Source Current VCC e 10V, VIN(0) e 0V TA e 25§ C, VOUT e 0V b 8.0 mA ISINK Output Sink Current VCC e 5V, VIN(1) e 5V TA e 25§ C, VOUT e VCC 1.75 mA ISINK Output Sink Current VCC e 10V, VIN(1) e 10V TA e 25§ C, VOUT e VCC 8.0 mA 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* TA e 25§ C, CL e 50 pF, unless otherwise specified Symbol Parameter Conditions Typ Max Units tpd0, tpd1 Propagation Delay from Data to Output VCC e 5.0V VCC e 10V Min 150 70 250 110 ns ns tpd0, tpd1 Propagation Delay from Select to Output VCC e 5V VCC e 10V 180 80 300 130 ns ns tpd0, tpd1 Propagation Delay from Enable to Output VCC e 5V VCC e 10V 180 80 300 130 ns ns CIN Input Capacitance (Note 2) CPD Power Dissipation Capacitance (Note 3) 5 pF 20 pF *AC Parameters are guaranteed by DC correlated testing. 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. 3 MM54C157/MM74C157 Quad 2-Input Multiplexers Physical Dimensions inches (millimeters) Ceramic Dual-In-Line Package (J) Order Number MM54C157J or MM74C157J NS Package Number J16A Molded Dual-In-Line Package (N) Order Number MM54C157N or MM74C157N NS Package Number N16E LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 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