1 SN54/74LS151 . 8-INPUT MULTIPLEXER . The TTL / MSI SN54 / 74LS151 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. 8-INPUT MULTIPLEXER . Schottky Process for High Speed LOW POWER SCHOTTKY. Multifunction Capability On-Chip Select Logic Decoding Fully Buffered Complementary Outputs input Clamp Diodes Limit High Speed Termination Effects J SUFFIX. CERAMIC. CASE 620-09. CONNECTION DIAGRAM DIP (TOP VIEW) 16. 1.. N SUFFIX. PLASTIC. 16 CASE 648-08. 1.. D SUFFIX. SOIC. 16. 1 CASE 751B-03. ORDERING INFORMATION. SN54 LSXXXJ Ceramic SN74 LSXXXN Plastic PIN NAMES LOADING (Note a) SN74 LSXXXD SOIC. HIGH LOW. S0 S2 Select Inputs E Enable (Active LOW) input LOGIC SYMBOL. I0 I7 MULTIPLEXER Inputs Z MULTIPLEXER Output (Note b) 10 5 ( ) Z Complementary MULTIPLEXER Output 10 5 ( ).
2 (Note b). NOTES: a) 1 TTL Unit Load ( ) = 40 A mA LOW.. b) The Output LOW drive factor is for Military (54) and 5 for Commercial (74) . Temperature Ranges.. FAST AND LS TTL DATA. 5-252. SN54/74LS151 . LOGIC DIAGRAM.. FUNCTIONAL DESCRIPTION. The LS151 is a logical implementation of a single pole, Z = E (I0 S0 S1 S2 + I1 S0 S1 S2 + I2 S0 S1 S2. 8-position switch with the switch position controlled by the + I3 S0 S1 S2 + I4 S0 S1 S2 + I5 S0 S1 S2 + I6 S0. state of three Select inputs, S0, S 1, S2. Both assertion and S1 S2 + I7 S0 S1 S2). negation outputs are provided. The Enable input (E) is active The LS151 provides the ability, in one package, to select LOW. When it is not activated, the negation output is HIGH from eight sources of data or control information. By proper and the assertion output is LOW regardless of all other inputs. manipulation of the inputs, the LS151 can provide any logic The logic function provided at the output is: function of four variables and its negation. TRUTH TABLE.
3 E S2 S1 S0 I0 I1 I2 I3 I4 I5 I6 I7 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 FAST AND LS TTL DATA. 5-253. SN54/74LS151 . GUARANTEED OPERATING RANGES. Symbol Parameter Min Typ Max Unit VCC Supply Voltage 54 V. 74 TA Operating Ambient Temperature Range 54 55 25 125 C. 74 0 25 70. IOH Output Current High 54, 74 mA. IOL Output Current Low 54 mA. 74 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified). Limits Symbol Parameter Min Typ Max Unit Test Conditions Guaranteed input HIGH Voltage for VIH input HIGH Voltage V.
4 All Inputs 54 Guaranteed input LOW Voltage for VIL input LOW Voltage V. 74 All Inputs VIK input Clamp Diode Voltage V VCC = MIN, IIN = 18 mA. 54 V VCC = MIN, IOH = MAX, VIN = VIH. VOH Output HIGH Voltage 74 V or VIL per Truth Table 54, 74 V IOL = mA VCC = VCC MIN, VOL Output LOW Voltage VIN = VIL or VIH. 74 V IOL = mA per Truth Table 20 A VCC = MAX, VIN = V. IIH input HIGH Current mA VCC = MAX, VIN = V. IIL input LOW Current mA VCC = MAX, VIN = V. IOS Short Circuit Current (Note 1) 20 100 mA VCC = MAX. ICC Power Supply Current 10 mA VCC = MAX. Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS (TA = 25 C). Limits Symbol Parameter Min Typ Max Unit Test Conditions tPLH Propagation Delay 27 43. ns tPHL Select to Output Z 18 30. tPLH Propagation Delay 14 23. ns tPHL Select to Output Z 20 32. tPLH Propagation Delay 26 42. ns tPHL Enable to Output Z 20 32 VCC = V. tPLH Propagation Delay 15 24 CL = 15 pF. ns tPHL Enable to Output Z 18 30.
5 TPLH Propagation Delay 20 32. ns tPHL Data to Output Z 16 26. tPLH Propagation Delay 13 21. ns tPHL Data to Output Z 12 20. AC WAVEFORMS.. Figure 1 Figure 2. FAST AND LS TTL DATA. 5-254. Case 751B-03 D Suffix " ! . 16-Pin Plastic ! " ! . SO-16 & . -A- " ! " . ! " # . " #! . % # " #! . 16 9 ! . ) ! ! " $ !" . ) .. -B- P .. 1 . 8 .. R X 45 .. G C .. ! ! . -T- . J . D M F.. K . ( . ( . ( . (.. " ! ! . Case 648-08 N Suffix " ! . 16-Pin Plastic ! " ! . & . -A- " ! . ! ' " " ! $ .. 16 9 ! ' ! " # . ! . B # ! " . 1 8 ) " # ) ! " $ !" . ) .. F . C L.. S .. -T- .. ! ! . H K J M ! ! .. G .. D .. " .. Case 620-09 J Suffix -A- 16-Pin Ceramic Dual In-Line " ! . ! " ! . & . 16 9 " ! . ! " " $ . -B- . & $ " . $ . 1 8 " " ! " & . ) " # ) ! " $ !" . C L ) .. -T- * * K.. ! ! .. E N M ! ! .. F G J * * . D ! . ! . " ! . " ! .. FAST AND LS TTL DATA. 5-255. Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages.
6 Typical parameters can and do vary in different applications. All operating parameters, including Typicals must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
7 Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. Literature Distribution Centers: USA: Motorola Literature Distribution; Box 20912; Phoenix, Arizona 85036. EUROPE: Motorola Ltd.; European Literature Centre; 88 Tanners Drive, Blakelands, Milton Keynes, MK14 5BP, England. JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan. ASIA PACIFIC: Motorola Semiconductors Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate, Tai Po, , Hong Kong. FAST AND LS TTL DATA. 5-256. This datasheet has been download from: Datasheets for electronics components.