MC54/74F151 8-INPUT MULTIPLEXER The MC54/74F151 is a high-speed 8-input digital multiplexer. It provides in one package, the ability to select one line of data from up to eight sources. The F151 can be used as a universal function generator to generate any logic function of four variables. Both asserted and negated outputs are provided. The F151 is a logic implementation of a single pole, 8-position switch with the switch position controlled by the state of three Select inputs, S0, S1, S2. The Enable input (E) is active LOW. The logic function provided at the output is: 8-INPUT MULTIPLEXER FAST SHOTTKY TTL Z = E • (I0 • S0 • S1 • S2 + I1 • S0 • S1 • S2 + I2 • S0 • S1 • S2 + I3 • S0 • S1 • S2 + I4 • S0 • S1 • S2 + I5 • S0 • S1 • S2 + I6 • S0 • S1 • S2 + I7 • S0 • S1 • S2) J SUFFIX CERAMIC CASE 620-09 CONNECTION DIAGRAM DIP (TOP VIEW) VCC I4 I5 I6 I7 S0 S1 S2 16 15 14 13 12 11 10 9 16 1 N SUFFIX PLASTIC CASE 648-08 16 1 1 2 3 4 5 6 7 8 I3 I2 I1 I0 Z Z E GND LOGIC DIAGRAM I0 I1 I2 I3 D SUFFIX SOIC CASE 751B-03 16 I4 I5 I6 I7 S2 S1 1 ORDERING INFORMATION MC54FXXXJ MC74FXXXN MC74FXXXD S0 E Ceramic Plastic SOIC LOGIC SYMBOL Z Z 12 13 14 15 1 2 3 4 7 FUNCTION TABLE Inputs E H L L L L L L L L S2 X L L L L H H H H Outputs S1 X L L H H L L H H S0 X L H L H L H L H Z H I0 I1 I2 I3 I4 I5 I6 I7 Z L I0 I1 I2 I3 I4 I5 I6 I7 I7 I6 I5 Z I4 I3 I2 I1 Z I0 ES S S 0 1 2 11 10 9 VCC = PIN 16 GND = PIN 8 H = HIGH Voltage Level; L = LOW Voltage Level; X = Don’t Care FAST AND LS TTL DATA 4-62 5 6 MC54/74F151 GUARANTEED OPERATING RANGES Symbol Parameter Min Typ Max Unit 54, 74 4.5 5.0 5.5 V 54 –55 25 125 °C 74 0 25 VCC Supply Voltage TA Operating Ambient Temperature Range IOH Output Current — High 54, 74 –1.0 mA IOL Output Current — Low 54, 74 20 mA 70 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Parameter VIH Input HIGH Voltage VIL Input LOW Voltage VIK Input Clamp Diode Voltage VOH Output HIGH Voltage VOL IIH Min Typ Max Unit 2.0 Test Conditions V Guaranteed Input HIGH Voltage 0.8 V Guaranteed Input LOW Voltage –1.2 V IIN = –18 mA VCC = MIN 54, 74 2.5 3.4 V IOH = –1.0 mA VCC = 4.50 V 74 2.7 3.4 V IOH = –1.0 mA VCC = 4.75 V 0.5 V IOL = 20 mA VCC = MIN 20 µA VCC = MAX, VIN = 2.7 V 100 µA VCC = MAX, VIN = 7.0 V –0.6 mA VCC = MAX, VIN = 0.5 V –150 mA VCC = MAX, VOUT = 0 V 21 mA VCC = MAX, VIN = 4.5 V Output LOW Voltage 0.35 Input HIGH Current IIL Input LOW Current IOS Output Short Circuit Current (Note 2) ICC Power Supply Current –60 13.5 NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value specified under guaranteed operating ranges. 2. Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS Symbol Parameter 54/74F 54F 74F TA = +25°C VCC = +5.0 V CL = 50 pF TA = –55°C to +125°C VCC = 5.0 V ±10% CL = 50 pF TA = 0°C to 70°C VCC = 5.0 V ±10% CL = 50 pF Min Max Min Max Min Max tPLH Propagation Delay 4.0 8.0 3.5 10 3.5 9.0 tPHL Sn to Z 3.2 6.1 3.0 8.0 3.2 7.0 tPLH Propagation Delay 4.5 13 3.0 17.5 4.0 14 tPHL Sn to Z 4.5 9.0 4.0 11.5 4.0 10.5 tPLH Propagation Delay 3.0 6.1 2.5 7.5 2.5 7.0 tPHL E to Z 3.0 8.5 2.5 10.5 2.5 10 tPLH Propagation Delay 5.0 9.5 3.0 14.5 4.0 11 tPHL E to Z 3.5 7.0 3.0 9.5 3.5 8.0 tPLH Propagation Delay 2.5 5.7 2.5 7.5 2.5 6.5 tPHL In to Z 1.5 4.0 1.5 6.0 1.5 5.0 tPLH Propagation Delay 3.0 9.5 2.5 11.5 2.5 11 tPHL In to Z 3.0 6.5 3.0 8.0 3.0 7.5 Unit ns ns ns ns ns FAST AND LS TTL DATA 4-63 ns