74VHC157N

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This literature is subject to all applicable copyright laws and is not for resale in any manner. 74VHC157 Quad 2-Input Multiplexer tm Features General Description ■ High Speed: tPD = 4.1ns (Typ.) at VCC = 5V ■ Low power dissipation: ICC = 4µA (Max.) at TA = 25°C The VHC157 is an advanced high speed CMOS Quad 2-Channel Multiplexer fabricated with silicon gate CMOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. ■ High noise immunity: VNIH = VNIL = 28% VCC (Min.) ■ Power down protection is provided on all inputs ■ Low noise: VOLP = 0.8V (Max.) ■ Pin and function compatible with 74HC157 It consists of four 2-input digital multiplexers with common select and enable inputs. When the ENABLE input is held “H” level, selection of data is inhibited and all the outputs become “L” level. The SELECT decoding determines whether the I0x or I1x inputs get routed to their corresponding outputs. An Input protection circuit ensures that 0V to 7V can be applied to the input pins without regard to the supply voltage. This device can be used to interface 5V to 3V systems and on two supply systems such as battery back up. This circuit prevents device destruction due to mismatched supply and input voltages. Ordering Information Order Number Package Number Package Description 74VHC157M M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow 74VHC157SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74VHC157MTC MTC16 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering number. Connection Diagram Pin Description Pin Names ©1992 Fairchild Semiconductor Corporation 74VHC157 Rev. 1.2 Description I0a–I0d Source 0 Data Inputs I1a–I1d Source 1 Data Inputs E Enable Input S Select Input Za–Zd Outputs www.fairchildsemi.com 74VHC157 Quad 2-Input Multiplexer May 2007 Functional Description The VHC157 is a quad 2-input multiplexer. It selects four bits of data from two sources under the control of a common Select input (S). The Enable input (E) is activeLOW. When E is HIGH, all of the outputs (Z) are forced LOW regardless of all other inputs. The VHC157 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. The logic equations for the outputs are shown below: Za = E • (I1a • S + I0a • S) Zb = E • (I1b • S + I0b • S) IEEE/IEC Zc = E • (I1c • S + I0c • S) Zd = E • (I1d • S + I0d • S) A common use of the VHC157 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 VHC157 can generate any four of the sixteen different functions of two variables with one variable common. This is useful for implementing gating functions. Truth Table Inputs Outputs E S I0 I1 Z H X X X L L H X L L L H X H H L L L X L L L H X H H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial ©1992 Fairchild Semiconductor Corporation 74VHC157 Rev. 1.2 www.fairchildsemi.com 2 74VHC157 Quad 2-Input Multiplexer Logic Symbols 74VHC157 Quad 2-Input Multiplexer 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. ©1992 Fairchild Semiconductor Corporation 74VHC157 Rev. 1.2 www.fairchildsemi.com 3 Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol Parameter Rating VCC Supply Voltage –0.5V to +7.0V VIN DC Input Voltage –0.5V to +7.0V VOUT DC Output Voltage –0.5V to VCC + 0.5V IIK Input Diode Current –20mA IOK Output Diode Current ±20mA IOUT DC Output Current ±25mA ICC DC VCC / GND Current TSTG TL ±50mA Storage Temperature –65°C to +150°C Lead Temperature (Soldering, 10 seconds) 260°C Recommended Operating Conditions(1) The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings. Symbol Parameter VCC Supply Voltage VIN Input Voltage VOUT Output Voltage TOPR Operating Temperature tr , tf Rating 2.0V to +5.5V 0V to +5.5V 0V to VCC –40°C to +85°C Input Rise and Fall Time, VCC = 3.3V ± 0.3V 0ns/V ∼ 100ns/V VCC = 5.0V ± 0.5V 0ns/V ∼ 20ns/V Note: 1. Unused inputs must be held HIGH or LOW. They may not float. ©1992 Fairchild Semiconductor Corporation 74VHC157 Rev. 1.2 www.fairchildsemi.com 4 74VHC157 Quad 2-Input Multiplexer Absolute Maximum Ratings TA = –40°C to +85°C TA = 25°C Symbol Parameter VCC (V) VIH HIGH Level Input Voltage 2.0 Conditions Min. 1.50 3.0–5.5 0.7 x VCC VIL LOW Level Input Voltage VOH HIGH Level Output Voltage 3.0 LOW Level Output Voltage Min. IOH = –50µA 2.0 1.9 2.9 3.0 2.9 4.4 4.5 4.4 IOH = –4mA 2.58 2.48 IOH = –8mA 3.94 3.80 VIN = VIH or VIL IOL = 50µA 4.5 0.1 0.1 0.0 0.1 0.1 0.0 IOL = 8mA 4.5 V 0.0 IOL = 4mA 3.0 V 0.3 x VCC 1.9 4.5 3.0 V 0.50 0.3 x VCC VIN = VIH or VIL Units 0.7 x VCC 3.0 2.0 Max. 0.50 3.0–5.5 2.0 Max. 1.50 2.0 4.5 VOL Typ. 0.1 0.1 0.36 0.44 V 0.36 0.44 IIN Input Leakage Current 0–5.5 VIN = 5.5V or GND ±0.1 ±1.0 µA ICC Quiescent Supply Current 5.5 VIN = VCC or GND 4.0 40.0 µA Noise Characteristics TA = 25°C Symbol Typ. Limits Units VOLP(3) Quiet Output Maximum Dynamic VOL Parameter VCC (V) 5.0 CL = 50pF Conditions 0.3 0.8 V VOLV(3) Quiet Output Minimum Dynamic VOL 5.0 CL = 50pF –0.3 –0.8 V VIHD(3) Minimum HIGH Level Dynamic Input Voltage 5.0 CL = 50pF 3.5 V VILD(3) Maximum LOW Level Dynamic Input Voltage 5.0 CL = 50pF 1.5 V Note: 2. Parameter guaranteed by design. ©1992 Fairchild Semiconductor Corporation 74VHC157 Rev. 1.2 www.fairchildsemi.com 5 74VHC157 Quad 2-Input Multiplexer DC Electrical Characteristics Symbol tPLH, tPHL Parameter Propagation Delay, In to Zn VCC (V) 3.3 ± 0.3 5.0 ± 0.5 tPLH, tPHL Propagation Delay, S to Zn 3.3 ± 0.3 5.0 ± 0.5 tPLH, tPHL Propagation Delay, E to Zn 3.3 ± 0.3 5.0 ± 0.5 CIN Input Capacitance CPD Power Dissipation Capacitance TA = –40°C to +85°C TA = 25°C Conditions Min. Typ. Max. Min. Max. Units CL = 15pF 6.2 9.7 1.0 11.5 ns CL = 50pF 8.7 13.2 1.0 15.0 CL = 15pF 4.1 6.4 1.0 7.5 CL = 50pF 5.6 8.4 1.0 9.5 CL = 15pF 8.4 13.2 1.0 15.5 CL = 50pF 10.9 16.7 1.0 19.0 CL = 15pF 5.3 8.1 1.0 9.5 CL = 50pF 6.8 10.1 1.0 11.5 CL = 15pF 8.7 13.6 1.0 16.0 CL = 50pF 11.2 17.1 1.0 19.5 CL = 15pF 5.6 8.6 1.0 10.0 CL = 50pF 7.1 10.6 1.0 12.0 4 10 VCC (3) = Open 10 20 ns ns ns ns ns pF pF Note: 3. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC (opr.) = CPD • VCC • fIN + ICC ©1992 Fairchild Semiconductor Corporation 74VHC157 Rev. 1.2 www.fairchildsemi.com 6 74VHC157 Quad 2-Input Multiplexer AC Electrical Characteristics 74VHC157 Quad 2-Input Multiplexer Physical Dimensions Dimensions are in millimeters unless otherwise noted. Figure 1. 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Package Number M16A ©1992 Fairchild Semiconductor Corporation 74VHC157 Rev. 1.2 www.fairchildsemi.com 7 74VHC157 Quad 2-Input Multiplexer Physical Dimensions (Continued) Dimensions are in millimeters unless otherwise noted. Figure 2. 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M16D ©1992 Fairchild Semiconductor Corporation 74VHC157 Rev. 1.2 www.fairchildsemi.com 8 5.00±0.10 4.55 5.90 4.45 7.35 0.65 4.4±0.1 1.45 5.00 0.11 12° MTC16rev4 Figure 3. 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC16 ©1992 Fairchild Semiconductor Corporation 74VHC157 Rev. 1.2 www.fairchildsemi.com 9 74VHC157 Quad 2-Input Multiplexer Physical Dimensions (Continued) Dimensions are in millimeters unless otherwise noted. ® ACEx Across the board. Around the world.™ ActiveArray™ Bottomless™ Build it Now™ CoolFET™ CROSSVOLT™ CTL™ Current Transfer Logic™ DOME™ 2 E CMOS™ ® EcoSPARK EnSigna™ FACT Quiet Series™ ® FACT ® FAST FASTr™ FPS™ ® FRFET GlobalOptoisolator™ GTO™ HiSeC™ i-Lo™ ImpliedDisconnect™ IntelliMAX™ ISOPLANAR™ MICROCOUPLER™ MicroPak™ MICROWIRE™ Motion-SPM™ MSX™ MSXPro™ OCX™ OCXPro™ ® OPTOLOGIC ® OPTOPLANAR PACMAN™ PDP-SPM™ POP™ ® Power220 ® Power247 PowerEdge™ PowerSaver™ Power-SPM™ ® PowerTrench Programmable Active Droop™ ® QFET QS™ QT Optoelectronics™ Quiet Series™ RapidConfigure™ RapidConnect™ ScalarPump™ SMART START™ ® SPM STEALTH™ SuperFET™ SuperSOT™-3 SuperSOT™-6 SuperSOT™-8 SyncFET™ TCM™ ® The Power Franchise TinyBoost™ TinyBuck™ ® TinyLogic TINYOPTO™ TinyPower™ TinyWire™ TruTranslation™ µSerDes™ ® UHC UniFET™ VCX™ Wire™ ™ DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS. 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 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 of the user. 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. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Product Status Advance Information Formative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. Definition Preliminary First Production This datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild Semiconductor. The datasheet is printed for reference information only. Rev. I26 ©1992 Fairchild Semiconductor Corporation 74VHC157 Rev. 1.2 www.fairchildsemi.com 10 74VHC157 Quad 2-Input Multiplexer TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor 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 special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor 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 ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. 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