INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: * The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications * The IC06 74HC/HCT/HCU/HCMOS Logic Package Information * The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines 74HC/HCT157 Quad 2-input multiplexer Product specification File under Integrated Circuits, IC06 December 1990 Philips Semiconductors Product specification Quad 2-input multiplexer 74HC/HCT157 Moving the data from two groups of registers to four common output buses is a common use of the "157". The state of the common data select input (S) determines the particular register from which the data comes. It can also be used as function generator. FEATURES * Non-inverting data path * Output capability: standard * ICC category: MSI The device is useful for implementing highly irregular logic by generating any four of the 16 different functions of two variables with one variable common. GENERAL DESCRIPTION The 74HC/HCT157 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The "157" is the logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to S. The logic equations are: The 74HC/HCT157 are quad 2-input multiplexers which select 4 bits of data from two sources under the control of a common data select input (S). The four outputs present the selected data in the true (non-inverted) form. The enable input (E) is active LOW. When E is HIGH, all of the outputs (1Y to 4Y) are forced LOW regardless of all other input conditions. 1Y = E.(1l1.S + 1l0.S) 2Y = E.(2l1.S + 2l0.S) 3Y = E.(3l1.S + 3l0.S) 4Y = E.(4l1.S + 4l0.S) The "157" is identical to the "158" but has non-inverting (true) outputs. QUICK REFERENCE DATA GND = 0 V; Tamb = 25 C; tr = tf = 6 ns TYPICAL SYMBOL PARAMETER CONDITIONS UNIT HC tPHL/ tPLH propagation delay HCT CL = 15 pF; VCC = 5 V nI0, nI1 to nY 11 13 ns E to nY 11 12 ns S to nY 12 19 ns CI input capacitance 3.5 3.5 pF CPD power dissipation capacitance per multiplexer notes 1 and 2 70 70 pF Notes 1. CPD is used to determine the dynamic power dissipation (PD in W): PD = CPD x VCC2 x fi + (CL x VCC2 x fo) where: fi = input frequency in MHz fo = output frequency in MHz (CL x VCC2 x fo) = sum of outputs CL = output load capacitance in pF VCC = supply voltage in V 2. For HC the condition is VI = GND to VCC For HCT the condition is VI = GND to VCC - 1.5 V ORDERING INFORMATION See "74HC/HCT/HCU/HCMOS Logic Package Information". December 1990 2 Philips Semiconductors Product specification Quad 2-input multiplexer 74HC/HCT157 PIN DESCRIPTION PIN NO. SYMBOL NAME AND FUNCTION 1 S common data select input 2, 5, 11, 14 1I0 to 4I0 data inputs from source 0 3, 6, 10, 13 1I1 to 4I1 data inputs from source 1 4, 7, 9, 12 1Y to 4Y multiplexer outputs 8 GND ground (0 V) 15 E enable input (active LOW) 16 VCC positive supply voltage Fig.1 Pin configuration. December 1990 Fig.2 Logic symbol. 3 Fig.3 IEC logic symbol. Philips Semiconductors Product specification Quad 2-input multiplexer 74HC/HCT157 FUNCTION TABLE INPUTS E S nI0 nI1 nY H X X X L L L L L L L H H L H X X X X L H L H L H Notes 1. H = HIGH voltage level L = LOW voltage level X = don't care Fig.4 Functional diagram. Fig.5 Logic diagram. December 1990 4 OUTPUT Philips Semiconductors Product specification Quad 2-input multiplexer 74HC/HCT157 DC CHARACTERISTICS FOR 74HC For the DC characteristics see "74HC/HCT/HCU/HCMOS Logic Family Specifications". Output capability: standard ICC category: MSI AC CHARACTERISTICS FOR 74HC GND = 0 V; tr = tf = 6 ns; CL = 50 pF Tamb (C) TEST CONDITIONS 74HC SYMBOL PARAMETER -40 to +85 +25 min. typ. max. min. max. -40 to +125 min. UNIT VCC WAVEFORMS (V) max. tPHL/ tPLH propagation delay nI0 to nY; nI1 to nY 36 13 10 125 25 21 155 31 26 190 38 32 ns 2.0 4.5 6.0 Fig.7 tPHL/ tPLH propagation delay E to nY 39 14 11 115 23 20 145 29 25 175 35 30 ns 2.0 4.5 6.0 Fig.6 tPHL/ tPLH propagation delay S to nY 41 15 12 125 25 21 155 31 26 190 38 32 ns 2.0 4.5 6.0 Fig.7 tTHL/ tTLH output transition time 19 7 6 75 15 13 95 19 16 110 22 19 ns 2.0 4.5 6.0 Fig.6 and Fig.7 December 1990 5 Philips Semiconductors Product specification Quad 2-input multiplexer 74HC/HCT157 DC CHARACTERISTICS FOR 74HCT For the DC characteristics see "74HC/HCT/HCU/HCMOS Logic Family Specifications". Output capability: standard ICC category: MSI Note to HCT types The value of additional quiescent supply current (ICC) for a unit load of 1 is given in the family specifications. To determine ICC per input, multiply this value by the unit load coefficient shown in the table below. INPUT UNIT LOAD COEFFICIENT nI0 nI1 E S 1.00 1.00 0.60 1.00 AC CHARACTERISTICS FOR 74HCT GND = 0 V; tr = tf = 6 ns; CL = 50 pF Tamb (C) TEST CONDITIONS 74HCT SYMBOL PARAMETER -40 to +85 +25 min. typ. max. min. max. -40 to +125 min. UNIT VCC WAVEFORMS (V) max. tPHL/ tPLH propagation delay nI0 to nY; nI1 to nY 16 27 34 41 ns 4.5 Fig.7 tPHL/ tPLH propagation delay E to nY 15 26 33 39 ns 4.5 Fig.6 tPHL/ tPLH propagation delay S to nY 22 37 46 56 ns 4.5 Fig.7 tTHL/ tTLH output transition time 7 15 19 22 ns 4.5 Fig.6 and Fig.7 December 1990 6 Philips Semiconductors Product specification Quad 2-input multiplexer 74HC/HCT157 AC WAVEFORMS (1) HC : VM = 50%; VI = GND to VCC. HCT: VM = 1.3 V; VI = GND to 3 V. Fig.6 Waveforms showing the enable input (E) to output (nY) propagation delays and the output transition times. (1) HC : VM = 50%; VI = GND to VCC. HCT: VM = 1.3 V; VI = GND to 3 V. Fig.7 Waveforms showing the data inputs (nIn) and common data select input (S) to output (nY) propagation delays. PACKAGE OUTLINES See "74HC/HCT/HCU/HCMOS Logic Package Outlines". December 1990 7 Philips Semiconductors - PIP - 74HC/HCT157; Quad 2-input multiplexer Submit Query Philips Semiconductors Home ProductBuy MySemiconductors ContactProduct Information catalogonline 74HC/HCT157; Quad 2-input multiplexer Products General description MultiMarket * Semiconductors * Product Selector Catalog by * Function Catalog by * System * Cross-reference * Packages End of Life * information Distributors Go * Here! * Models * SoC solutions Block diagram Products & packages Features Buy online Parametrics Information as of 2003-04-22 My.Semiconductors.COM. Your personal service from Use right mouse button to download datasheet Philips Semiconductors. Please register now ! Download datasheet Stay informed Applications Support & tools Similar products Datasheet Email/translate General description top The 74HC/HCT157 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT157 are quad 2-input multiplexers which select 4 bits of data from two sources under the control of a common data select input (S). The four outputs present the selected data in the true (non-inverted) form. The enable input (E) is active LOW. When E is HIGH, all of the outputs (1Y to 4Y) are forced LOW regardless of all other input conditions. Moving the data from two groups of registers to four common output buses is a common use of the '157'. The state of the common data select input (S) determines the particular register from which the data comes. It can also be used as function generator. The device is useful for implementing highly irregular logic by generating any four of the 16 different functions of two variables with one variable common. The '157' is the logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to S. The logic equations are: 1Y = E.(1l1.S + 1l0.S) 2Y = E.(2l1.S + 2l00.S) 3Y = E.(3l1.S + 3l0.S) 4Y = E.(4l1.S + 4l0.S) The '157' is identical to the '158' but has non-inverting (true) outputs. Features top Non-inverting data path Output capability: standard ICC category: MSI file:///G|/imaging/BITTING/CPL/20030424/04232003_9/PHGL/_HTML04232003/74HC157N.html (1 of 4) [Apr-29-2003 12:07:29 PM] Philips Semiconductors - PIP - 74HC/HCT157; Quad 2-input multiplexer Applications top AN99055_1: TDA8798HL - DUAL 8-BIT A/D CONVERTER WITH DPGA DEMONSTRATION BOARD Download (date 01-Oct-99) PDF File Datasheet top Type number Title Publication release date Datasheet status Page count File size (kB) Datasheet 74HC/HCT157 Quad 2-input multiplexer 12/1/1990 Product specification 7 43 Download Download PDF File Additional datasheet info To complete the device datasheet with package and family information, also download the following PDF files. The "Logic Package Information" document is required to determine in which package(s) this device is available. Document Description 1 Download HCT_FAMILY_SPECIFICATIONS PDF 2 Download File HCT_PACKAGE_INFO PDF 3 Download File HCT_PACKAGE_OUTLINES PDF File HC/T Family Specifications, The IC06 74HC/HCT/HCMOS Logic Family Specifications HC/T Package Info, The IC06 74HC/HCT/HCMOS Logic Package Information HC/T Package Outlines, The IC06 74HC/HCT/HCMOS Logic Package Outlines Parametrics top Type number Package Description Propagation Voltage No. Power Logic Output Delay(ns) of Dissipation Switching Drive Pins Considerations Levels Capability 74HC157D SOT109 (SO16) Quad 2Input 15 Multiplexer 5 Volts 16 + Low Power or Battery Applications CMOS Low 74HC157DB SOT338-1 (SSOP16) Quad 2Input 15 Multiplexer 5 Volts 16 + Low Power or Battery Applications CMOS Low 74HC157N SOT38-1 (DIP16) Quad 2Input 15 Multiplexer 5 Volts 16 + Low Power or Battery Applications CMOS Low 74HC157PW Quad 2SOT403-1 Input 15 (TSSOP16) Multiplexer 5 Volts 16 + Low Power or Battery Applications CMOS Low 74HCT157D Quad 2Input Multiplexer; 15 TTL Enabled 5 Volts 16 + Low Power or Battery Applications TTL Low SOT109 (SO16) file:///G|/imaging/BITTING/CPL/20030424/04232003_9/PHGL/_HTML04232003/74HC157N.html (2 of 4) [Apr-29-2003 12:07:29 PM] Philips Semiconductors - PIP - 74HC/HCT157; Quad 2-input multiplexer Quad 2Input Multiplexer; 15 TTL Enabled 5 Volts 16 + Low Power or Battery Applications TTL Low Quad 2Input Multiplexer; 15 TTL Enabled 5 Volts 16 + Low Power or Battery Applications TTL Low Quad 2Input SOT403-1 74HCT157PW Multiplexer; 15 (TSSOP16) TTL Enabled 5 Volts 16 + Low Power or Battery Applications TTL Low SOT338-1 74HCT157DB (SSOP16) 74HCT157N SOT38-1 (DIP16) Products, packages, availability and ordering top Type number North Ordering code Marking/Packing Package Device status Buy online Discretes American type (12NC) Download packing info number PDF File Standard Marking SOT109 74HC157D 74HC157D 9337 137 40652 * Bulk Pack, Full production order this (SO16) CECC product Standard Marking online SOT109 74HC157D-T 9337 137 40653 * Reel Pack, Full production order this (SO16) SMD, 13", CECC product Standard Marking SOT338-1 74HC157DB 74HC157DB 9351 868 70112 Full production online order this (SSOP16) * Bulk Pack product Standard Marking SOT338-1 74HC157DB9351 868 70118 * Reel Pack, Full production online order this (SSOP16) T SMD, 13" product Standard Marking online SOT38-1 74HC157N 74HC157N 9336 693 40652 * Bulk Pack, Full production order this (DIP16) CECC product SOT403-1 online Standard Marking 74HC157PW 74HC157PW 9351 868 80112 (TSSOP16) Full production order this * Bulk Pack product Standard Marking SOT403-1 online 74HC157PW9351 868 80118 * Reel Pack, (TSSOP16) Full production order this T SMD, 13" product Standard Marking online SOT109 74HCT157D 74HCT157D 9337 137 50652 * Bulk Pack, Full production order this (SO16) CECC product Standard Marking online SOT109 74HCT157D9337 137 50653 * Reel Pack, Full production order this (SO16) T SMD, 13", CECC product Standard Marking SOT338-1 74HCT157DB 74HCT157DB 9351 885 60112 Full production online order this (SSOP16) * Bulk Pack product Standard Marking SOT338-1 74HCT157DB9351 885 60118 * Reel Pack, Full production online order this (SSOP16) T SMD, 13" product online file:///G|/imaging/BITTING/CPL/20030424/04232003_9/PHGL/_HTML04232003/74HC157N.html (3 of 4) [Apr-29-2003 12:07:29 PM] - - - - - - - Philips Semiconductors - PIP - 74HC/HCT157; Quad 2-input multiplexer 74HCT157N 74HCT157N Standard Marking SOT38-1 9336 699 70652 * Bulk Pack, (DIP16) CECC SOT403-1 74HCT157PW 74HCT157PW 9351 885 40112 Standard Marking (TSSOP16) * Bulk Pack Standard Marking SOT403-1 74HCT157PW9351 885 40118 * Reel Pack, (TSSOP16) T SMD, 13" 74HCT157U 9338 249 50029 Uncased die Full production order this product online Full production order this product online Full production order this product Full production online - - - - Products in the above table are all in production. Some variants are discontinued; click here for information on these variants. Similar products top 74HC/HCT157 links to the similar products page containing an overview of products that are similar in Products function similar or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category. to 74HC/HCT157 Support & tools top HC/T Family Specifications, The IC06 74HC/HCT/HCMOS Logic Family Specifications(date 01-Mar-98) Download Download PDF HC/T User Guide(date 01-Nov-97) PDF File File Email/translate this product information top Email this product information. Translate this product information page from English to: French Translate The English language is the official language used at the semiconductors.philips.com website and webpages. All translations on this website are created through the use of Google Language Tools and are provided for convenience purposes only. No rights can be derived from any translation on this website. About this Web Site | Copyright (c) 2003 Koninklijke Philips N.V. All rights reserved. | Privacy Policy | | Koninklijke Philips N.V. | Access to and use of this Web Site is subject to the following Terms of Use. | file:///G|/imaging/BITTING/CPL/20030424/04232003_9/PHGL/_HTML04232003/74HC157N.html (4 of 4) [Apr-29-2003 12:07:29 PM]