SN74LS151 8-Input Multiplexer The TTL/MSI SN74LS151 is a high speed 8-input Digital Multiplexer. It provides, in one package, the ability to select one bit of data from up to eight sources. The LS151 can be used as a universal function generator to generate any logic function of four variables. Both assertion and negation outputs are provided. * * * * * http://onsemi.com Schottky Process for High Speed Multifunction Capability On-Chip Select Logic Decoding Fully Buffered Complementary Outputs Input Clamp Diodes Limit High Speed Termination Effects LOW POWER SCHOTTKY GUARANTEED OPERATING RANGES Symbol VCC Parameter Supply Voltage Min Typ Max Unit 4.75 5.0 5.25 V 0 25 70 C TA Operating Ambient Temperature Range IOH Output Current - High -0.4 mA IOL Output Current - Low 8.0 mA 16 1 PLASTIC N SUFFIX CASE 648 16 1 SOIC D SUFFIX CASE 751B 16 1 SOEIAJ M SUFFIX CASE 966 ORDERING INFORMATION Device Package Shipping SN74LS151N 16 Pin DIP 2000 Units/Box SN74LS151D SOIC-16 38 Units/Rail SN74LS151DR2 SOIC-16 2500/Tape & Reel SN74LS151M SOEIAJ-16 See Note 1 SN74LS151MEL SOEIAJ-16 See Note 1 1. For ordering information on the EIAJ version of the SOIC package, please contact your local ON Semiconductor representative. Semiconductor Components Industries, LLC, 2001 October, 2001 - Rev. 7 1 Publication Order Number: SN74LS151/D SN74LS151 CONNECTION DIAGRAM DIP (TOP VIEW) VCC 16 I4 15 I5 14 I6 13 I7 12 S0 11 S1 10 S2 9 1 I3 2 I2 3 I1 4 I0 5 Z 6 Z 7 E 8 GND LOADING (Note a) PIN NAMES S0 - S2 E I0 - I7 Z Z Select Inputs Enable (Active LOW) Input Multiplexer Inputs Multiplexer Output Complementary Multiplexer Output HIGH LOW 0.5 U.L. 0.5 U.L. 0.5 U.L. 10 U.L. 10 U.L. 0.25 U.L. 0.25 U.L. 0.25 U.L. 5 U.L. 5 U.L. NOTES: a) 1 TTL Unit Load (U.L.) = 40 A HIGH/1.6 mA LOW. b) The Output LOW drive factor is 5 U.L. for Commercial (74) Temperature Ranges. LOGIC SYMBOL 7 4 3 2 1 15 14 13 12 11 10 9 E I0 I1 I2 I3 I4 I5 I6 I7 S0 S1 S2 Z Z 6 5 VCC = PIN 16 GND = PIN 8 http://onsemi.com 2 SN74LS151 LOGIC DIAGRAM I0 S2 S1 S0 E I1 4 9 I2 3 I3 2 I4 1 I5 15 I6 14 I7 13 12 10 11 7 VCC = PIN 16 GND = PIN 8 = PIN NUMBERS 5 6 Z Z FUNCTIONAL DESCRIPTION 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). The LS151 is a logical implementation of a single pole, 8-position switch with the switch position controlled by the state of three Select inputs, S0, S1, S2. Both assertion and negation outputs are provided. The Enable input (E) is active LOW. When it is not activated, the negation output is HIGH and the assertion output is LOW regardless of all other inputs. The logic function provided at the output is: The LS151 provides the ability, in one package, to select from eight sources of data or control information. By proper manipulation of the inputs, the LS151 can provide any logic function of four variables and its negation. TRUTH TABLE E S2 S1 S0 I0 I1 I2 I3 I4 I5 I6 I7 Z Z H L L L L L L L L L L L L L L L L X L L L L L L L L H H H H H H H H X L L L L H H H H L L L L H H H H X L L H H L L H H L L H H L L H H X L H X X X X X X X X X X X X X X X X X L H X X X X X X X X X X X X X X X X X L H X X X X X X X X X X X X X X X X X L H X X X X X X X X X X X X X X X X X L H X X X X X X X X X X X X X X X X X L H X X X X X X X X X X X X X X X X X L H X X X X X X X X X X X X X X X X X L H H H L H L H L H L H L H L H L H L L L H L H L H L H L H L H L H L H H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care http://onsemi.com 3 SN74LS151 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Min Parameter VIH Input HIGH Voltage VIL Input LOW Voltage VIK VOH Input Clamp Diode Voltage VOL Output LOW Voltage IIH Input HIGH Current IIL IOS Input LOW Current Typ Max Unit 2.0 0.8 -0.65 Output HIGH Voltage 2.7 Short Circuit Current (Note 2) -1.5 V V Guaranteed Input LOW Voltage for All Inputs V 3.5 Test Conditions Guaranteed Input HIGH Voltage for All Inputs V VCC = MIN, IIN = -18 mA VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table VCC = VCC MIN, VIN = VIL or VIH per Truth Table 0.25 0.4 V IOL = 4.0 mA 0.35 0.5 V IOL = 8.0 mA 20 A VCC = MAX, VIN = 2.7 V VCC = MAX, VIN = 7.0 V -20 0.1 mA -0.4 mA -100 mA ICC Power Supply Current 10 mA 2. Not more than one output should be shorted at a time, nor for more than 1 second. VCC = MAX, VIN = 0.4 V VCC = MAX VCC = MAX AC CHARACTERISTICS (TA = 25C) Limits Typ Max Unit tPLH tPHL Propagation Delay Select to Output Z 27 18 43 30 ns tPLH tPHL Propagation Delay Select to Output Z 14 20 23 32 ns tPLH tPHL Propagation Delay Enable to Output Z 26 20 42 32 ns tPLH tPHL Propagation Delay Enable to Output Z 15 18 24 30 ns tPLH tPHL Propagation Delay Data to Output Z 20 16 32 26 ns tPLH tPHL Propagation Delay Data to Output Z 13 12 21 20 ns Symbol Min Parameter Test Conditions VCC = 5.0 V CL = 15 pF AC WAVEFORMS VIN VOUT 1.3 V 1.3 V VIN tPHL tPLH 1.3 V 1.3 V tPHL VOUT Figure 1. 1.3 V 1.3 V tPLH 1.3 V Figure 2. http://onsemi.com 4 1.3 V SN74LS151 PACKAGE DIMENSIONS N SUFFIX PLASTIC PACKAGE CASE 648-08 ISSUE R NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. -A- 16 9 1 8 B F C L S -T- SEATING PLANE K H G D M J 16 PL 0.25 (0.010) M T A M http://onsemi.com 5 DIM A B C D F G H J K L M S INCHES MIN MAX 0.740 0.770 0.250 0.270 0.145 0.175 0.015 0.021 0.040 0.70 0.100 BSC 0.050 BSC 0.008 0.015 0.110 0.130 0.295 0.305 0 10 0.020 0.040 MILLIMETERS MIN MAX 18.80 19.55 6.35 6.85 3.69 4.44 0.39 0.53 1.02 1.77 2.54 BSC 1.27 BSC 0.21 0.38 2.80 3.30 7.50 7.74 0 10 0.51 1.01 SN74LS151 PACKAGE DIMENSIONS D SUFFIX PLASTIC SOIC PACKAGE CASE 751B-05 ISSUE J -A- 16 9 1 8 -B- P NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. 8 PL 0.25 (0.010) M B S G R K F X 45 C -T- SEATING PLANE J M D 16 PL 0.25 (0.010) M T B S A S http://onsemi.com 6 DIM A B C D F G J K M P R MILLIMETERS MIN MAX 9.80 10.00 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0 7 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.386 0.393 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0 7 0.229 0.244 0.010 0.019 SN74LS151 PACKAGE DIMENSIONS M SUFFIX SOEIAJ PACKAGE CASE 966-01 ISSUE O 16 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS AND ARE MEASURED AT THE PARTING LINE. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 5. THE LEAD WIDTH DIMENSION (b) DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE LEAD WIDTH DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE BETWEEN PROTRUSIONS AND ADJACENT LEAD TO BE 0.46 ( 0.018). LE 9 Q1 M E HE 1 8 L DETAIL P Z D e VIEW P A A1 b 0.13 (0.005) c M 0.10 (0.004) http://onsemi.com 7 DIM A A1 b c D E e HE L LE M Q1 Z MILLIMETERS MIN MAX --2.05 0.05 0.20 0.35 0.50 0.18 0.27 9.90 10.50 5.10 5.45 1.27 BSC 7.40 8.20 0.50 0.85 1.10 1.50 10 0 0.70 0.90 --0.78 INCHES MIN MAX --0.081 0.002 0.008 0.014 0.020 0.007 0.011 0.390 0.413 0.201 0.215 0.050 BSC 0.291 0.323 0.020 0.033 0.043 0.059 10 0 0.028 0.035 --0.031 SN74LS151 ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. 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