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1. general description the 74hc157; 74hct157 is a high-speed si-g ate cmos device and is pin compatible with low-power schottky ttl. it is 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 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 register s to four common output buses is a common use of the 74hc/hct157. the state of the co mmon 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 74hc/hct157 is logic implementation of a 4-pole, 2-position switch, where the positio n of the switch is determine by the logic levels applied to s. the logic equations are: 1y = e ?? (1i1 ?? s+1i0 ?? s ) 2y = e ?? (2i1 ?? s+2i0 ?? s ) 3y = e ?? (3i1 ?? s+3i0 ?? s ) 4y = e ?? (4i1 ?? s+4i0 ?? s ) the 74hc/hct157 is identical to the 74hc158 but has non-inverting (true) outputs. 2. features and benefits ? low-power dissipation ? non-inverting data path ? esd protection: ? hbm jesd22-a114f exceeds 2 000 v ? mm jesd22-a115-a exceeds 200 v ? specified from ? 40 ? cto+85 ? c and from ? 40 ? cto+125 ? c 74hc157; 74hct157 quad 2-input multiplexer rev. 3 ? 31 december 2010 product data sheet
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 2 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer 3. ordering information 4. functional diagram table 1. ordering information type number package temperature range name description version 74hc157n ? 40 ? c to +125 ? c dip16 plastic dual in-line package; 16 leads (300 mil) sot38-4 74hct157n 74hc157d ? 40 ? c to +125 ? c so16 plastic small outline package; 16 leads; body width 3.9 mm sot109-1 74hct157d 74HC157DB ? 40 ? c to +125 ? c ssop16 plastic shrink small outline package; 16 leads; body width 5.3 mm sot338-1 74hct157db 74hc157pw ? 40 ? c to +125 ? c tssop16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm sot403-1 74hct157pw 74hc157bq ? 40 ? c to +125 ? c dhvqfn16 plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 16 terminals; body 2.5 ? 3.5 ? 0.85 mm sot763-1 74hct157bq fig 1. logic diagram fig 2. logic symbol 1y 1i1 1i0 2y 2i1 2i0 3y 3i1 3i0 mna484 4y 4i1 4i0 s e mna481 s 1 15 12 9 7 4 131410116532 e 1y 1i11i0 2y 2i12i0 3y 3i13i0 4y 4i14i0
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 3 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer 5. pinning information 5.1 pinning fig 3. logic symbol fig 4. iec logic symbol mna483 multiplexer outputs selector 1y 2y 3y 4y 12 9 7 4 s 13 15 1 14 10 11 6 5 3 2 e 1i0 1i1 2i0 2i1 3i0 3i1 4i0 4i1 mna482 12 9 7 1 g1 15 en 1 mux 1 4 13 14 10 11 6 5 3 2 (1) this is not a supply pin. the substrate is attached to this pad using conductive die attach material. there is no electrical or mechani cal requirement to solder this pad. however, if it is soldered, the solder land should remain floating or be connected to gnd. fig 5. pin configuration dip 16, so16, (t)ssop16 fig 6. pin configuration dhvqfn16 74hc157 74hct157 sv cc 1i0 e 1i1 4i0 1y 4i1 2i0 4y 2i1 3i0 2y 3i1 gnd 3y 001aan353 1 2 3 4 5 6 7 8 10 9 12 11 14 13 16 15 001aan354 2y 3i1 2i1 3i0 2i0 4y gnd (1) 1y 4i1 1i1 4i0 1i0 e gnd 3y s v cc transparent top view 7 10 6 11 5 12 4 13 3 14 2 15 8 9 1 16 terminal 1 index area 74hc157 74hct157
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 4 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer 5.2 pin description 6. functional description [1] h = high voltage level; l = low voltage level; x = don?t care. 7. limiting values [1] p tot derates linearly with 8 mw/k above 70 ? c. [2] p tot derates linearly with 5.5 mw/k above 60 ? c. table 2. pin description symbol pin description s 1 common data select input 1i0 to 4i0 2, 5, 11, 14 data inputs from source 0 1i1 to 4i1 3, 6, 10, 13 data inputs from source 1 1y to 4y 4, 7, 9, 12 multiplexer outputs gnd 8 ground (0 v) e 15 enable input (active low) v cc 16 supply voltage table 3. function table [1] input output e s ni0 ni1 ny hxxxl lllxl llhxh lhxll lhxhh table 4. limiting values in accordance with the absolute maximum rating system (iec 60134). voltages are referenced to gnd (ground = 0 v). symbol parameter conditions min max unit v cc supply voltage ? 0.5 +7 v i ik input clamping current v i < ? 0.5 v or v i >v cc +0.5 v - ? 20 ma i ok output clamping current v o < ? 0.5 v or v o >v cc +0.5v - ? 20 ma i o output current v o = ? 0.5 v to (v cc +0.5v) - ? 25 ma i cc supply current - +50 ma i gnd ground current - ? 50 ma t stg storage temperature ? 65 +150 ?c p tot total power dissipation t amb = ? 40 ? c to +125 ?c so16 package [1] - 500 mw tssop16 package [2] - 500 mw dhvqfn16 package [3] - 500 mw
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 5 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer [3] p tot derates linearly with 4.5 mw/k above 60 ? c. 8. recommended operating conditions 9. static characteristics table 5. recommended operating conditions voltages are referenced to gnd (ground = 0 v) symbol parameter conditions 74hc157 74hct157 unit min typ max min typ max v cc supply voltage 2.0 5.0 6.0 4.5 5.0 5.5 v v i input voltage 0 - v cc 0- v cc v v o output voltage 0 - v cc 0- v cc v t amb ambient temperature ? 40 +25 +125 ? 40 +25 +125 ?c ? t/ ? v input transition rise and fall rate v cc = 2.0 v - - 625 - - - ns/v v cc = 4.5 v - 1.67 139 - 1.67 139 ns/v v cc = 6.0 v--83---ns/v table 6. static characteristics at recommended operating conditions; volt ages are referenced to gnd (ground = 0 v). symbol parameter conditions t amb = 25 ?c t amb = ? 40 ?c to +85 ?c t amb = ? 40 ?c to +125 ?c unit min typ max min max min max 74hc157 v ih high-level input voltage v cc = 2.0 v 1.5 1.2 - 1.5 - 1.5 - v v cc = 4.5 v 3.15 2.4 - 3.15 - 3.15 - v v cc = 6.0 v 4.2 3.2 - 4.2 - 4.2 - v v il low-level input voltage v cc = 2.0 v - 0.8 0.5 - 0.5 - 0.5 v v cc = 4.5 v - 2.1 1.35 - 1.35 - 1.35 v v cc = 6.0 v - 2.8 1.8 - 1.8 - 1.8 v v oh high-level output voltage v i =v ih or v il i o = ? 20 ? a; v cc = 2.0 v 1.9 2.0 - 1.9 - 1.9 - v i o = ? 20 ? a; v cc = 4.5 v 4.4 4.5 - 4.4 - 4.4 - v i o = ? 20 ? a; v cc = 6.0 v 5.9 6.0 - 5.9 - 5.9 - v i o = ? 4.0 ma; v cc = 4.5 v 3.98 4.32 - 3.84 - 3.7 - v i o = ? 5.2 ma; v cc = 6.0 v 5.48 5.81 - 5.34 - 5.2 - v v ol low-level output voltage v i =v ih or v il i o =20 ? a; v cc = 2.0 v - 0 0.1 - 0.1 - 0.1 v i o =20 ? a; v cc = 4.5 v - 0 0.1 - 0.1 - 0.1 v i o =20 ? a; v cc = 6.0 v - 0 0.1 - 0.1 - 0.1 v i o = 4.0 ma; v cc = 4.5 v - 0.15 0.26 - 0.33 - 0.4 v i o = 5.2 ma; v cc = 6.0 v - 0.16 0.26 - 0.33 - 0.4 v i i input leakage current v i =v cc or gnd; v cc =6.0v -- ? 0.1 - ? 1.0 - ? 1.0 ? a
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 6 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer i cc supply current v i =v cc or gnd; i o =0a; v cc =6.0v - - 8.0 - 80 - 160 ? a c i input capacitance -3.5- pf 74hct157 v ih high-level input voltage v cc = 4.5 v to 5.5 v 2.0 1.6 - 2.0 - 2.0 - v v il low-level input voltage v cc = 4.5 v to 5.5 v - 1.2 0.8 - 0.8 - 0.8 v v oh high-level output voltage v i =v ih or v il ; v cc =4.5v i o = ? 20 ? a 4.4 4.5 - 4.4 - 4.4 - v i o = ? 4 ma 3.98 4.32 - 3.84 - 3.7 - v v ol low-level output voltage v i =v ih or v il ; v cc =4.5v i o =20 ? a - 0 0.1 - 0.1 - 0.1 v i o = 4.0 ma - 0.15 0.26 - 0.33 - 0.4 v i i input leakage current v i =v cc or gnd; v cc =5.5v -- ? 0.1 - ? 1.0 - ? 1.0 ? a i cc supply current v i =v cc or gnd; i o =0a; v cc =5.5v - - 8.0 - 80 - 160 ? a ? i cc additional supply current v i =v cc ? 2.1 v; other inputs at v cc or gnd; v cc = 4.5 v to 5.5 v; i o =0a per input pin; nin inputs - 100 360 - 450 - 490 ? a per input pin; e input - 60 216 - 270 - 294 ? a per input pin; s input - 100 360 - 450 - 490 ? a c i input capacitance -3.5- pf table 6. static characteristics ?continued at recommended operating conditions; volt ages are referenced to gnd (ground = 0 v). symbol parameter conditions t amb = 25 ?c t amb = ? 40 ?c to +85 ?c t amb = ? 40 ?c to +125 ?c unit min typ max min max min max
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 7 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer 10. dynamic characteristics table 7. dynamic characteristics voltages are referenced to gnd (ground = 0 v); c l = 50 pf unless otherwise specified; for test circuit see figure 9 . symbol parameter conditions t amb = 25 ?c t amb = ? 40 ?c to +85 ?c t amb = ? 40 ?c to +125 ?c unit min typ max min max min max for type 74hc157 t pd propagation delay ni0, ni1 to ny ; see figure 7 [1] v cc = 2.0 v - 36 125 - 155 - 190 ns v cc = 4.5 v - 13 25 - 31 - 38 ns v cc =5v; c l =15pf - 11 - - - - - ns v cc = 6.0 v - 10 21 - 26 - 32 ns s to ny ; see figure 7 [1] v cc = 2.0 v - 41 125 - 155 - 190 ns v cc = 4.5 v - 15 25 - 31 - 38 ns v cc =5v; c l =15pf - 12 - - - - - ns v cc = 6.0 v - 12 21 - 26 - 32 ns e to ny ; see figure 8 [1] v cc = 2.0 v - 39 115 - 145 - 175 ns v cc = 4.5 v - 14 23 - 29 - 35 ns v cc =5v; c l =15pf - 11 - - - - - ns v cc = 6.0 v - 11 20 - 25 - 30 ns t t transition time ny; see figure 7 [2] v cc = 2.0 v - 19 75 - 95 - 110 ns v cc = 4.5 v - 7 15 - 19 - 22 ns v cc = 6.0 v - 6 13 - 16 - 19 ns c pd power dissipation capacitance c l =50pf;f=1 mhz; v i =gndtov cc [3] -70- - - - -pf for type 74hct157 t pd propagation delay ni0, ni1 to ny ; see figure 7 [1] v cc = 4.5 v - 16 27 - 34 - 41 ns v cc =5v; c l =15pf - 13 - - - - - ns s to ny ; see figure 7 [1] v cc = 4.5 v - 22 37 - 46 - 56 ns v cc =5v; c l =15pf - 19 - - - - - ns e to ny ; see figure 8 [1] v cc = 4.5 v - 15 26 - 33 - 39 ns v cc =5v; c l =15pf - 12 - - - - - ns
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 8 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer [1] t pd is the same as t plh and t phl . [2] t t is the same as t thl and t tlh . [3] c pd is used to determine the dynamic power dissipation (p d in ? w). p d =c pd ? v cc 2 ? f i ? n+ ? (c l ? v cc 2 ? f o ) where: f i = input frequency in mhz; f o = output frequency in mhz; c l = output load capacitance in pf; v cc = supply voltage in v; n = number of inputs switching; ? (c l ? v cc 2 ? f o ) = sum of outputs. 11. waveforms t t transition time ny; see figure 7 [2] v cc = 4.5 v - 7 15 - 19 - 22 ns c pd power dissipation capacitance c l =50pf;f=1 mhz; v i =gndtov cc [3] -70- - - - -pf table 7. dynamic characteristics ?continued voltages are referenced to gnd (ground = 0 v); c l = 50 pf unless otherwise specified; for test circuit see figure 9 . symbol parameter conditions t amb = 25 ?c t amb = ? 40 ?c to +85 ?c t amb = ? 40 ?c to +125 ?c unit min typ max min max min max measurement points are given in table 8 . v ol and v oh are typical voltage output levels that occur with the output load. fig 7. propagation delay input (ni0, ni1, s) to output (nyn) mna486 t phl t plh v m v m ni0, ni1, s input ny output gnd v i v oh v ol
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 9 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer measurement points are given in table 8 . v ol and v oh are typical voltage output levels that occur with the output load. fig 8. propagation delay input (e ) to output (ny) mna485 t phl t plh v m v m e input ny output gnd v cc v oh v ol table 8. measurement points type input output v m v m 74hc157 0.5v cc 0.5v cc 74hct157 1.3 v 1.3 v
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 10 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer test data is given in table 9 . definitions test circuit: r t = termination resistance should be equal to output impedance z o of the pulse generator. c l = load capacitance including jig and probe capacitance. r l = load resistance. s1 = test selection switch. fig 9. test circuit for measuring switching times 001aah768 t w t w t r t r t f v m v i negative pulse gnd v i positive pulse gnd 10 % 90 % 90 % 10 % v m v m v m t f v cc dut r t v i v o c l g table 9. test data type input load test v i t r , t f c l 74hc157 v cc 6.0 ns 15 pf, 50 pf t plh , t phl 74hct157 3.0 v 6.0 ns 15 pf, 50 pf t plh , t phl
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 11 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer 12. package outline fig 10. package outline sot109-1 (so16) x w m a a 1 a 2 b p d h e l p q detail x e z e c l v m a (a ) 3 a 8 9 1 16 y pin 1 index unit a max. a 1 a 2 a 3 b p cd (1) e (1) (1) eh e ll p qz ywv references outline version european projection issue date iec jedec jeita mm inches 1.75 0.25 0.10 1.45 1.25 0.25 0.49 0.36 0.25 0.19 10.0 9.8 4.0 3.8 1.27 6.2 5.8 0.7 0.6 0.7 0.3 8 0 o o 0.25 0.1 dimensions (inch dimensions are derived from the original mm dimensions) note 1. plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. 1.0 0.4 sot109-1 99-12-27 03-02-19 076e07 ms-012 0.069 0.010 0.004 0.057 0.049 0.01 0.019 0.014 0.0100 0.0075 0.39 0.38 0.16 0.15 0.05 1.05 0.041 0.244 0.228 0.028 0.020 0.028 0.012 0.01 0.25 0.01 0.004 0.039 0.016 0 2.5 5 mm scale so16: plastic small outline package; 16 leads; body width 3.9 mm sot109-1
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 12 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer fig 11. package outline sot338-1 (ssop16) unit a 1 a 2 a 3 b p cd (1) e (1) eh e ll p qz ywv references outline version european projection issue date iec jedec jeita mm 0.21 0.05 1.80 1.65 0.25 0.38 0.25 0.20 0.09 6.4 6.0 5.4 5.2 0.65 1.25 7.9 7.6 1.03 0.63 0.9 0.7 1.00 0.55 8 0 o o 0.13 0.2 0.1 dimensions (mm are the original dimensions) note 1. plastic or metal protrusions of 0.25 mm maximum per side are not included. sot338-1 99-12-27 03-02-19 (1) w m b p d h e e z e c v m a x a y 1 8 16 9 a a 1 a 2 l p q detail x l (a ) 3 mo-150 pin 1 index 0 2.5 5 mm scale ssop16: plastic shrink small outline package; 16 leads; body width 5.3 mm sot338-1 a max. 2
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 13 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer fig 12. package outline sot403-1 (tssop16) unit a 1 a 2 a 3 b p cd (1) e (2) (1) eh e ll p qz ywv references outline version european projection issue date iec jedec jeita mm 0.15 0.05 0.95 0.80 0.30 0.19 0.2 0.1 5.1 4.9 4.5 4.3 0.65 6.6 6.2 0.4 0.3 0.40 0.06 8 0 o o 0.13 0.1 0.2 1 dimensions (mm are the original dimensions) notes 1. plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. plastic interlead protrusions of 0.25 mm maximum per side are not included. 0.75 0.50 sot403-1 mo-153 99-12-27 03-02-18 w m b p d z e 0.25 18 16 9 a a 1 a 2 l p q detail x l (a ) 3 h e e c v m a x a y 0 2.5 5 mm scale tssop16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm sot403-1 a max. 1.1 pin 1 index
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 14 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer fig 13. package outline sot763-1 (dhvqfn16) terminal 1 index area 0.5 1 a 1 e h b unit y e 0.2 c references outline version european projection issue date iec jedec jeita mm 3.6 3.4 d h 2.15 1.85 y 1 2.6 2.4 1.15 0.85 e 1 2.5 0.30 0.18 0.05 0.00 0.05 0.1 dimensions (mm are the original dimensions) sot763-1 mo-241 - - - - - - 0.5 0.3 l 0.1 v 0.05 w 0 2.5 5 mm scale sot763-1 dhvqfn16: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 16 terminals; body 2.5 x 3.5 x 0.85 mm a (1) max. a a 1 c detail x y y 1 c e l e h d h e e 1 b 27 15 10 9 8 1 16 x d e c b a terminal 1 index area ac c b v m w m e (1) note 1. plastic or metal protrusions of 0.075 mm maximum per side are not included. d (1) 02-10-17 03-01-27
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 15 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer 13. abbreviations 14. revision history table 10. abbreviations acronym description cmos complementary metal oxide semiconductor dut device under test esd electrostatic discharge hbm human body model mm machine model ttl transistor-transistor logic table 11. revision history document id release date data sheet status change notice supersedes 74hc_hct157 v.3 20101231 product data sheet - 74hc_hct157_cnv v.2 modifications: ? the format of this data sheet has been redesigned to comply with the new identity guidelines of nxp semiconductors. ? legal texts have been adapted to the new company name where appropriate. ? section 3 : dhvqfn16 package added. ? section 7 : derating values added for dhvqfn16 package. ? section 12 : outline drawing added for dhvqfn16 package. 74hc_hct157_cnv v.2 19970827 product specification - -
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 16 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer 15. legal information 15.1 data sheet status [1] please consult the most recently issued document before initiating or completing a design. [2] the term ?short data sheet? is explained in section ?definitions?. [3] the product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple device s. the latest product status information is available on the internet at url http://www.nxp.com . 15.2 definitions draft ? the document is a draft versi on only. the content is still under internal review and subject to formal approval, which may result in modifications or additions. nxp semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall hav e no liability for the consequences of use of such information. short data sheet ? a short data sheet is an extract from a full data sheet with the same product type number(s) and title. a short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. for detailed and full information see the relevant full data sheet, which is available on request vi a the local nxp semiconductors sales office. in case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. product specification ? the information and data provided in a product data sheet shall define the specification of the product as agreed between nxp semiconductors and its customer , unless nxp semiconductors and customer have explicitly agreed otherwis e in writing. in no event however, shall an agreement be valid in which the nxp semiconductors product is deemed to offer functions and qualities beyond those described in the product data sheet. 15.3 disclaimers limited warranty and liability ? information in this document is believed to be accurate and reliable. however, nxp semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. in no event shall nxp semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. notwithstanding any damages that customer might incur for any reason whatsoever, nxp semiconductors? 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stress above one or more limiting values (as defined in the absolute maximum ratings system of iec 60134) will cause permanent damage to the device. limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the recommended operating conditions section (if present) or the characteristics sections of this document is not warranted. constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. terms and conditions of commercial sale ? nxp semiconductors products are sold subject to the gener al terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms , unless otherwise agreed in a valid written individual agreement. in case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. nxp semiconductors hereby expressly objects to applying the customer?s general terms and conditions with regard to the purchase of nxp semiconducto rs products by customer. no offer to sell or license ? nothing in this document may be interpreted or construed as an offer to sell products t hat is open for acceptance or the grant, conveyance or implication of any lic ense under any copyrights, patents or other industrial or intellectual property rights. document status [1] [2] product status [3] definition objective [short] data sheet development this document contains data from the objecti ve specification for product development. preliminary [short] data sheet qualification this document contains data from the preliminary specification. product [short] data sheet production this document contains the product specification.
74hc_hct157 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2010. all rights reserved. product data sheet rev. 3 ? 31 december 2010 17 of 18 nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer export control ? this document as well as the item(s) described herein may be subject to export control regu lations. export might require a prior authorization from national authorities. 15.4 trademarks notice: all referenced brands, produc t names, service names and trademarks are the property of their respective owners. 16. contact information for more information, please visit: http://www.nxp.com for sales office addresses, please send an email to: salesaddresses@nxp.com
nxp semiconductors 74hc157; 74hct157 quad 2-input multiplexer ? nxp b.v. 2010. all rights reserved. for more information, please visit: http://www.nxp.com for sales office addresses, please se nd an email to: salesaddresses@nxp.com date of release: 31 december 2010 document identifier: 74hc_hct157 please be aware that important notices concerning this document and the product(s) described herein, have been included in section ?legal information?. 17. contents 1 general description . . . . . . . . . . . . . . . . . . . . . . 1 2 features and benefits . . . . . . . . . . . . . . . . . . . . 1 3 ordering information . . . . . . . . . . . . . . . . . . . . . 2 4 functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 5 pinning information . . . . . . . . . . . . . . . . . . . . . . 3 5.1 pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 6 functional description . . . . . . . . . . . . . . . . . . . 4 7 limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 4 8 recommended operating conditions. . . . . . . . 5 9 static characteristics. . . . . . . . . . . . . . . . . . . . . 5 10 dynamic characteristics . . . . . . . . . . . . . . . . . . 7 11 waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 12 package outline . . . . . . . . . . . . . . . . . . . . . . . . 11 13 abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 15 14 revision history . . . . . . . . . . . . . . . . . . . . . . . . 15 15 legal information. . . . . . . . . . . . . . . . . . . . . . . 16 15.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . 16 15.2 definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 15.3 disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 15.4 trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 17 16 contact information. . . . . . . . . . . . . . . . . . . . . 17 17 contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

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