The TTL/MSI SN74LS5 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 LS5 can be used as a universal function generator to generate any logic function of four variables. Both assertion and negation outputs are provided. 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 Parameter Min Typ Max Unit V CC Supply Voltage 4.75 5.0 5.25 V T A Operating Ambient Temperature Range 0 25 70 C I OH Output Current High 0.4 ma I OL Output Current Low 8.0 ma PLASTIC N SUFFIX CASE 648 SOIC D SUFFIX CASE 75B ORDERING INFORMATION Device Package Shipping SN74LS5N Pin DIP 00 Units/Box SN74LS5D Pin 2500/Tape & Reel
CONNECTION DIAGRAM DIP (TOP VIEW) V CC I 4 I 5 I 6 I 7 S 0 S S 2 5 4 3 2 0 9 2 3 4 5 6 7 8 I 3 I 2 I I 0 Z Z E GND LOADING (Note a) PIN NAMES HIGH LOW S 0 S 2 E I 0 I 7 Z Z Select Inputs Enable (Active LOW) Input Multiplexer Inputs Multiplexer Output Complementary Multiplexer Output 0.5 U.L. 0.5 U.L. 0.5 U.L. 0 U.L. 0 U.L. 0.25 U.L. 0.25 U.L. 0.25 U.L. 5 U.L. 5 U.L. NOTES: a) TTL Unit Load (U.L.) = 40 A HIGH/.6 ma LOW. b) The Output LOW drive factor is 5 U.L. for Commercial (74) Temperature Ranges. LOGIC SYMBOL 7 4 3 2 5 4 3 2 0 9 E I 0 S 0 I I 2 I 3 I 4 I 5 I 6 I 7 S S 2 Z Z 6 5 V CC = PIN GND = PIN 8 2
LOGIC DIAGRAM I 0 I I 2 I 3 I 4 I 5 I 6 I 7 S 2 S S 0 E 9 0 7 4 3 2 5 4 3 2 V CC = PIN GND = PIN 8 = PIN NUMBERS 6 5 Z Z FUNCTIONAL DESCRIPTION The LS5 is a logical implementation of a single pole, 8-position switch with the switch position controlled by the state of three Select inputs, S 0, S, S 2. 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: Z = E (I 0 S 0 S S 2 + I S 0 S S 2 + I 2 S 0 S S 2 + I 3 S 0 S S 2 + I 4 S 0 S S 2 + I 5 S 0 S S 2 + I 6 S 0 S S 2 + I 7 S 0 S S 2 ). The LS5 provides the ability, in one package, to select from eight sources of data or control information. By proper manipulation of the inputs, the LS5 can provide any logic function of four variables and its negation. TRUTH TABLE E S 2 S S 0 I 0 I I 2 I 3 I 4 I 5 I 6 I 7 Z Z H X X X X X X X X X X X H L L L L L L X X X X X X X H L L L L L H X X X X X X X L H L L L H X L X X X X X X H L L L L H X H X X X X X X L H L L H L X X L X X X X X H L L L H L X X H X X X X X L H L L H H X X X L X X X X H L L L H H X X X H X X X X L H L H L L X X X X L X X X H L L H L L X X X X H X X X L H L H L H X X X X X L X X H L L H L H X X X X X H X X L H L H H L X X X X X X L X H L L H H L X X X X X X H X L H L H H H X X X X X X X L H L L H H H X X X X X X X H L H H = HIGH Voltage Level L = LOW Voltage Level X = Don t Care 3
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Parameter Min Typ Max Unit Test Conditio V IH Input HIGH Voltage 2.0 V V IL Input LOW Voltage 0.8 V Guaranteed Input HIGH Voltage for All Inputs Guaranteed Input LOW Voltage for All Inputs V IK Input Clamp Diode Voltage 0.65.5 V V CC = MIN, I IN = 8 ma V OH Output HIGH Voltage 2.7 3.5 V V CC = MIN, I OH = MAX, V IN = V IH or V IL per Truth Table V OL I IH Output LOW Voltage Input HIGH Current 0.25 0.4 V I OL = 4.0 ma V CC = V CC MIN, V IN = V IL or V IH 0.35 0.5 V I OL = 8.0 ma per Truth Table µa V CC = MAX, V IN = 2.7 V 0. ma V CC = MAX, V IN = 7.0 V I IL Input LOW Current 0.4 ma V CC = MAX, V IN = 0.4 V I OS Short Circuit Current (Note ) 00 ma V CC = MAX I CC Power Supply Current 0 ma V CC = MAX Note : Not more than one output should be shorted at a time, nor for more than second. AC CHARACTERISTICS (T A = 25 C) Limits Symbol Parameter Min Typ Max Unit Test Conditio Select to Output Z Select to Output Z Enable to Output Z Enable to Output Z Data to Output Z Data to Output Z 27 8 4 26 5 8 3 2 43 30 23 32 42 32 24 30 32 26 2 V CC = 5.0 V C L = 5 pf AC WAVEFORMS V IN V IN V OUT V OUT Figure. Figure 2. 4
PACKAGE DIMENSIONS N SUFFIX PLASTIC PACKAGE CASE 648 08 ISSUE R A 8 H G F 9 D PL B S C K 0.25 (0.00) M T SEATING T PLANE A M J L M NOTES:. DIMENSIONING AND TOLERANCING PER ANSI Y4.5M, 982. 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. INCHES MILLIMETERS DIM MIN MAX MIN MAX A 0.740 0.770 8.80 9.55 B 0.250 0.270 6.35 6.85 C 0.45 0.75 3.69 4.44 D 0.05 0.02 0.39 0.53 F 0.040 0.70.02.77 G 0.00 BSC 2.54 BSC H 0.050 BSC.27 BSC J 0.008 0.05 0.2 0.38 K 0.0 0.30 2.80 3.30 L 0.295 0.305 7.50 7.74 M 0 0 0 0 S 0.0 0.040 0.5.0 5
PACKAGE DIMENSIONS D SUFFIX PLASTIC SOIC PACKAGE CASE 75B 05 ISSUE J T SEATING PLANE 9 8 G A K B D PL 0.25 (0.00) M T B S A S P 8 PL 0.25 (0.00) M B S C M R X 45 J F NOTES:. DIMENSIONING AND TOLERANCING PER ANSI Y4.5M, 982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.5 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.27 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 9.80 0.00 0.386 0.393 B 3.80 4.00 0.50 0.57 C.35.75 0.054 0.068 D 0.35 0.49 0.04 0.09 F 0.40.25 0.0 0.049 G.27 BSC 0.050 BSC J 0.9 0.25 0.008 0.009 K 0.0 0.25 0.004 0.009 M 0 7 0 7 P 5.80 6. 0.229 0.244 R 0.25 0.50 0.00 0.09 6