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| 74F158A Quad 2-Input Multiplexer April 1988 Revised January 2004 74F158A Quad 2-Input Multiplexer General Description The F158A is a high speed quad 2-input multiplexer. It selects four bits of data from two sources using the common Select and Enable inputs. The four outputs present the selected data in the inverted form. The F158A can also generate any four of the 16 different functions of two variables. Ordering Code: Order Number 74F158ASC (Note 1) 74F158ASJ 74F158APC Package Number M16A M16D N16E Package Description 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Note 1: Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code. Logic Symbols Connection Diagram IEEE/IEC (c) 2004 Fairchild Semiconductor Corporation DS009484 www.fairchildsemi.com 74F158A Unit Loading/Fan Out U.L. Pin Names I0a-I0d I1a-I1d E S Za-Zd Description HIGH/LOW Source 0 Data Inputs Source 1 Data Inputs Enable Input (Active LOW) Select Input Inverted Outputs 1.0/1.0 1.0/1.0 1.0/1.0 1.0/1.0 50/33.3 Input IIH/IIL Output IOH/IOL 20 A/-0.6 mA 20 A/-0.6 mA 20 A/-0.6 mA 20 A/-0.6 mA -1 mA/20 mA Truth Table Inputs E H L L L L S X L L H H I0 X L H X X I1 X X X L H Outputs Z H H L H L Functional Description The F158A quad 2-input multiplexer selects four bits of data from two sources under the control of a common Select input (S) and presents the data in inverted form at the four outputs. The Enable input (E) is active LOW. When E is HIGH, all of the outputs (Z) are forced HIGH regardless of all other inputs. The F158A is the logic implementation of a 4-pole, 2-position switch where the position of the switch is determined by the logic levels supplied to the Select input. A common use of the F158A is the moving of data from two groups of registers to four common output busses. The particular register from which the data comes is determined by the state of the Select input. A less obvious use is as a function generator. The F158A can generate four functions of two variables with one variable common. This is useful for implementing gating functions. H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Zn = E x (I1nS + I 0n S) 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 74F158A Absolute Maximum Ratings(Note 2) Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias VCC Pin Potential to Ground Pin Input Voltage (Note 3) Input Current (Note 3) Voltage Applied to Output in HIGH State (with VCC = 0V) Standard Output 3-STATE Output Current Applied to Output in LOW State (Max) ESD Last Passing Voltage (Min) twice the rated IOL (mA) 4000V -65C to +150C -55C to +125C -55C to +150C -0.5V to +7.0V -0.5V to +7.0V -30 mA to +5.0 mA Recommended Operating Conditions Free Air Ambient Temperature Supply Voltage 0C to +70C +4.5V to +5.5V -0.5V to VCC -0.5V to +5.5V Note 2: 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. Note 3: Either voltage limit or current limit is sufficient to protect inputs. DC Electrical Characteristics Symbol VIH VIL VCD VOH VOL IIH IBVI ICEX VID IOD IIL IOS ICCH ICCL Parameter Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage Output LOW Voltage Input HIGH Current Input HIGH Current Breakdown Test Output HIGH Leakage Current Input Leakage Test Output Leakage Circuit Current Input LOW Current Output Short-Circuit Current Power Supply Current Power Supply Current -60 10 15 4.75 3.75 -0.6 -150 15 25 10% VCC 5% VCC 10% VCC 2.5 2.7 0.5 5.0 7.0 50 Min 2.0 0.8 -1.2 Typ Max Units V V V V V A A A V A mA mA mA mA Min Min Min Max Max Max 0.0 0.0 Max Max Max Max VCC Conditions Recognized as a HIGH Signal Recognized as a LOW Signal IIN = -18 mA IOH = -1 mA IOH = -1 mA IOL = 20 mA VIN = 2.7V VIN = 7.0V VOUT = VCC IID = 1.9 A All Other Pins Grounded VIOD = 150 mV All Other Pins Grounded VIN = 0.5V VOUT = 0V VO = HIGH VO = LOW AC Electrical Characteristics TA = +25C Symbol Parameter Min tPLH tPHL tPLH tPHL tPLH tPHL Propagation Delay S to Zn Propagation Delay E to Zn Propagation Delay In to Zn 3.0 2.5 2.5 2.0 2.5 1.5 VCC = +5.0V CL = 50 pF Typ 5.5 4.5 4.5 4.0 4.0 2.5 Max 8.5 6.5 6.0 6.0 5.9 4.0 TA = -55C to +125C VCC = +5.0V CL = 50 pF Min 3.0 2.5 2.5 2.0 2.5 1.0 Max 10.5 8.0 8.0 7.0 8.5 5.0 TA = 0C to ++70C VCC = +5.0V CL = 50 pF Min 3.0 2.5 2.5 2.0 2.5 1.5 Max 9.5 7.0 7.0 6.5 7.0 4.5 ns ns ns Units 3 www.fairchildsemi.com 74F158A Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Package Number M16A www.fairchildsemi.com 4 74F158A Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M16D 5 www.fairchildsemi.com 74F158A Quad 2-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: 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 6 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. www.fairchildsemi.com This datasheet has been download from: www..com Datasheets for electronics components. |
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