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| 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: 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) CONNECTION DIAGRAM DIP (TOP VIEW) VCC 16 I4 15 I5 14 I6 13 I7 12 S0 11 S1 10 S2 9 16 1 8-INPUT MULTIPLEXER FASTTM SHOTTKY TTL J SUFFIX CERAMIC CASE 620-09 16 1 N SUFFIX PLASTIC CASE 648-08 1 I3 2 I2 3 I1 4 I0 5 Z 6 Z 7 E 8 GND D SUFFIX SOIC CASE 751B-03 LOGIC DIAGRAM I0 S2 S1 S0 E I1 I2 I3 I4 I5 I6 I7 16 1 ORDERING INFORMATION MC54FXXXJ MC74FXXXN MC74FXXXD Ceramic Plastic SOIC LOGIC SYMBOL ZZ 12 13 14 15 1 2 3 4 7 I7 I6 I5 Z I4 I3 I2 I1 Z I0 ES S S 012 11 10 9 VCC = PIN 16 GND = PIN 8 FUNCTION TABLE Inputs E H L L L L L L L L S2 X L L L L H H H H 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 Outputs Z L I0 I1 I2 I3 I4 I5 I6 I7 5 6 H = HIGH Voltage Level; L = LOW Voltage Level; X = Don't Care FAST AND LS TTL DATA 4-62 MC54/74F151 GUARANTEED OPERATING RANGES Symbol VCC TA Supply Voltage Operating Ambient Temperature Range Parameter 54, 74 54 74 IOH IOL Output Current -- High Output Current -- Low 54, 74 54, 74 Min 4.5 -55 0 Typ 5.0 25 25 Max 5.5 125 70 -1.0 20 mA mA Unit V C DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol VIH VIL VIK VOH Parameter Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage 54, 74 74 VOL IIH Output LOW Voltage Input HIGH Current 2.5 2.7 3.4 3.4 0.35 0.5 20 100 IIL IOS ICC Input LOW Current Output Short Circuit Current (Note 2) Power Supply Current -60 13.5 -0.6 -150 21 Min 2.0 0.8 -1.2 Typ Max Unit V V V V V V A A mA mA mA Test Conditions Guaranteed Input HIGH Voltage Guaranteed Input LOW Voltage IIN = -18 mA IOH = -1.0 mA IOH = -1.0 mA IOL = 20 mA VCC = MIN VCC = 4.50 V VCC = 4.75 V VCC = MIN VCC = MAX, VIN = 2.7 V VCC = MAX, VIN = 7.0 V VCC = MAX, VIN = 0.5 V VCC = MAX, VOUT = 0 V VCC = MAX, VIN = 4.5 V 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 54/74F TA = +25C VCC = +5.0 V CL = 50 pF Symbol tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL Parameter Propagation Delay Sn to Z Propagation Delay Sn to Z Propagation Delay E to Z Propagation Delay E to Z Propagation Delay In to Z Propagation Delay In to Z Min 4.0 3.2 4.5 4.5 3.0 3.0 5.0 3.5 2.5 1.5 3.0 3.0 Max 8.0 6.1 13 9.0 6.1 8.5 9.5 7.0 5.7 4.0 9.5 6.5 54F TA = -55C to +125C VCC = 5.0 V 10% CL = 50 pF Min 3.5 3.0 3.0 4.0 2.5 2.5 3.0 3.0 2.5 1.5 2.5 3.0 Max 10 8.0 17.5 11.5 7.5 10.5 14.5 9.5 7.5 6.0 11.5 8.0 74F TA = 0C to 70C VCC = 5.0 V 10% CL = 50 pF Min 3.5 3.2 4.0 4.0 2.5 2.5 4.0 3.5 2.5 1.5 2.5 3.0 Max 9.0 ns 7.0 14 ns 10.5 7.0 ns 10 11 ns 8.0 6.5 ns 5.0 11 7.5 ns Unit FAST AND LS TTL DATA 4-63 |
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