Revised September 2000 74F151A 8-Input Multiplexer General Description The F151A 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 F151A can be used as a universal function generator to generate any logic function of four variables. Both assertion and negation outputs are provided. Ordering Code: Order Number Package Number Package Description 74F151ASC M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow 74F151ASJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74F151APC N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbols Connection Diagram IEEE/IEC Unit Loading/Fan Out U.L. Pin Names Description Input IIH/IIL HIGH/LOW Output IOH/IOL I0–I7 Data Inputs 1.0/1.0 20 µA/−0.6 mA S0–S2 Select Inputs 1.0/1.0 20 µA/−0.6 mA E Enable Input (Active LOW) 1.0/1.0 20 µA/−0.6 mA Z Data Output 50/33.3 −1 mA/20 mA Z Inverted Data Output 50/33.3 −1 mA/20 mA © 2000 Fairchild Semiconductor Corporation DS009481 www.fairchildsemi.com 74F151A 8-Input Multiplexer April 1988 74F151A Functional Description Truth Table The F151A is a logic implementation of a single pole, 8position 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: Inputs Z = E • (I0 S2 S1 S0 + I1 S2 S1 S0 + I2 S2 S1 S0 + I3 S2 S1 S0 + I4 S2 S1 S0 + I5 S2 S1 S0 + Outputs E S2 S1 S0 Z H X X X H L L L L L I0 I0 L L L H I1 I1 L L H L I2 I2 L L H H I3 I3 L H L L I4 I4 L H L H I5 I5 L H H L I6 I6 L H H H I7 I7 Z I6 S2 S1 S0 + I7 S2 S1 S0) The F151A provides the ability, in one package, to select from eight sources of data or control information. By proper manipulation of the inputs, the F151A can provide any logic function of four variables and its negation. H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. www.fairchildsemi.com 2 Recommended Operating Conditions Storage Temperature −65°C to +150°C Ambient Temperature under Bias −55°C to +125°C Free Air Ambient Temperature Junction Temperature under Bias −55°C to +150°C Supply Voltage 0°C to +70°C +4.5V to +5.5V VCC Pin Potential to −0.5V to +7.0V Ground Pin Input Voltage (Note 2) −0.5V to +7.0V Input Current (Note 2) −30 mA to +5.0 mA Voltage Applied to Output in HIGH State (with VCC = 0V) Standard Output −0.5V to VCC 3-STATE Output −0.5V to +5.5V Note 1: Absolute maximum ratings are values beyond which the device may be damaged or have its useful life impaired. Functional operation under these conditions is not implied. Current Applied to Output in LOW State (Max) twice the rated IOL (mA) Note 2: Either voltage limit or current limit is sufficient to protect inputs. DC Electrical Characteristics Symbol Min Parameter Typ Max 2.0 Units VIH Input HIGH Voltage VIL Input LOW Voltage 0.8 V VCD Input Clamp Diode Voltage −1.2 V VOH Output HIGH 10% VCC 2.5 Voltage 5% VCC 2.7 VOL Output LOW Voltage 10% VCC IIH Input HIGH Current IBVI Input HIGH Current Breakdown Test ICEX Output HIGH Leakage Current VID Input Leakage Test IOD Circuit Current Input LOW Current IOS Output Short-Circuit Current ICC Power Supply Current −60 13.5 3 Conditions Recognized as a HIGH Signal Recognized as a LOW Signal Min IIN = −18 mA IOH = −1 mA V Min 0.5 V Min IOL = 20 mA 5.0 µA Max VIN = 2.7V 7.0 µA Max VIN = 7.0V 50 µA Max VOUT = VCC V 0.0 3.75 µA 0.0 −0.6 mA Max VIN = 0.5V −150 mA Max VOUT = 0V 21.0 mA Max VO = HIGH 4.75 Output Leakage IIL VCC V IOH = −1 mA IID = 1.9 µA All Other Pins Grounded VIOD = 150 mV All Other Pins Grounded www.fairchildsemi.com 74F151A Absolute Maximum Ratings(Note 1) 74F151A AC Electrical Characteristics Symbol Parameter TA = +25°C TA = 0°C to +70°C VCC = +5.0V CL = 50 pF CL = 50 pF Min Typ Max Min Max tPLH Propagation Delay 4.0 6.2 9.0 3.5 9.5 tPHL Sn to Z 3.2 5.2 7.5 3.2 7.5 tPLH Propagation Delay 4.5 7.5 10.5 4.5 12.0 tPHL Sn to Z 4.0 6.2 9.0 4.0 9.0 tPLH Propagation Delay 3.0 4.7 6.1 3.0 7.0 tPHL E to Z 3.0 4.4 6.0 2.5 6.0 tPLH Propagation Delay 5.0 7.0 9.5 4.0 10.5 tPHL E to Z 3.5 5.3 7.0 3.0 7.5 tPLH Propagation Delay 3.0 4.8 6.5 3.0 7.0 tPHL In to Z 1.5 2.5 4.0 1.5 5.0 tPLH Propagation Delay 3.0 4.8 6.5 2.5 7.5 tPHL In to Z 3.7 5.5 7.0 3.7 7.5 www.fairchildsemi.com 4 Units ns ns ns ns ns ns 74F151A Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow Package Number M16A 5 www.fairchildsemi.com 74F151A Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M16D www.fairchildsemi.com 6 74F151A 8-Input Multiplexer Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Package Number N16E Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. www.fairchildsemi.com 7 www.fairchildsemi.com