to learn more about on semiconductor, please visit our website at www.onsemi.com please note: as part of the fairchild semiconductor integration, some of the fairchild orderable part numbers will need to change in order to meet on semiconductors system requirements. since the on semiconductor product management systems do not have the ability to manage part nomenclature that utilizes an underscore (_), the underscore (_) in the fairchild part numbers will be changed to a dash (-). this document may contain device numbers with an underscore (_). please check the on semiconductor website to verify the updated device numbers. the most current and up-to-date ordering information can be found at www.onsemi.com . please email any questions regarding the system integration to fairchild_questions@onsemi.com . is now part of on semiconductor and the on semiconductor logo are trademarks of semico nductor components industries, llc dba on semiconductor or its subsid iaries in the united states and/or other countries. on semiconductor ow ns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellec tual property. a listing of on semiconductor?s product/patent cover age 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 semicon ductor makes no warranty, representation or guarantee regarding the s uitability of its products for any particular purpose, nor does on semico nductor assume any liability arising out of the application or use of any product or circuit, and speci?ca lly disclaims any and all liability, including without limitation spe cial, consequential or incidental damages. buyer is responsible for i ts products and applications using on semiconductor products, including compliance with all laws, regul ations and safety requirements or standards, regardless of any suppor t or applications information provided by on semiconductor. ?typica l? parameters which may be provided in on semiconductor data sheets and/or speci?cations can and do vary in diffe rent applications and actual performance may vary over time. all operat ing parameters, including ?typicals? must be validated for each custo mer application by customer?s technical experts. on semiconductor does not convey any license und er its patent rights nor the rights of others. on semiconductor products a re not designed, intended, or authorized for use as a critical compone nt in life support systems or any fda class 3 medical devices or medical devices with a same or similar classi?ca tion in a foreign jurisdiction or any devices intended for implantation i n the human body. should buyer purchase or use on semiconductor products fo r any such unintended or unauthorized application, buyer shall indemnify and hold on semico nductor and its of?cers, employees, subsidiaries, af?liates, and di stributors harmless against all claims, costs, damages, and expense s, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associa ted with such unintended or unauthorized use, even if such claim alleges th at on semiconductor was negligent regarding the design or manufacture o f the part. on semiconductor is an equal opportunity/af?rmative action employer. this literatu re is subject to all applicable copyright laws and is not for resale in any manne r.
? 2002 fairchild semiconductor corporation ds500037 www.fairchildsemi.com july 1997 revised july 2002 fst16211 24-bit bus switch fst16211 24-bit bus switch general description the fairchild switch fst16211 provides 24-bits of high- speed cmos ttl-compatible bus switching. the low on resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. the device is organized as a 12-bit or 24-bit bus switch. when oe 1 is low, the switch is on and port 1a is con- nected to port 1b. when oe 2 is low, port 2a is connected to port 2b. when oe 1/2 is high, a high impedance state exists between the a and b ports. features 4 switch connection between two ports minimal propagation delay through the switch low l cc zero bounce in flow-through mode control inputs compatible with ttl level also packaged in plastic fine-pitch ball grid array (fbga) ordering code: note 1: ordering code g indicates trays. note 2: devices also available in tape and reel. specify by appending the suffix letter x to the ordering code. logic diagram order number package number package description fst16211g (note 1)(note 2) bga54a 54-ball fine-pitch ball grid array (fbga), jedec mo-205, 5.5mm wide FST16211MEA (note 2) ms56a 56-lead shrink small outline package (ssop), jedec mo-118, 0.300" wide fst16211mtd (note 2) mtd56 56-lead thin shrink small outline package (tssop), jedec mo-153, 6.1mm wide
www.fairchildsemi.com 2 fst16211 connection diagrams pin assignment for ssop and tssop pin assignment for fbga (top thru view) pin descriptions fbga pin assignments truth table pin name description oe 1 , oe 2 bus switch enables 1a, 2a bus a 1b, 2b bus b 123456 a 1a 2 1a 1 nc oe 2 1b 1 1b 2 b 1a 4 1a 3 1a 7 oe 1 1b 3 1b 4 c 1a 6 1a 5 gnd 1b 7 1b 5 1b 6 d 1a 10 1a 9 1a 8 1b 8 1b 9 1b 10 e 1a 12 1a 11 2a 1 2b 1 1b 11 1b 12 f 2a 4 2a 3 2a 2 2b 2 2b 3 2b 4 g 2a 6 2a 5 v cc gnd 2b 5 2b 6 h 2a 8 2a 7 2a 9 2b 9 2b 7 2b 8 j 2a 12 2a 11 2a 10 2b 10 2b 11 2b 12 inputs inputs/outputs oe 1 oe 2 1a, 1b 2a, 2b ll1 a = 1b 2a = 2b lh1 a = 1b z hlz2 a = 2b hhz z
3 www.fairchildsemi.com fst16211 absolute maximum ratings (note 3) recommended operating conditions (note 6) note 3: the absolute maximum ratings are those values beyond which the safety of the device cannot be guaranteed. the device should not be operated at these limits. the parametric values defined in the electrical characteristics tables are not guaranteed at the absolute maximum rating. the recommended operating conditions table will define the conditions for actual device operation. note 4: v s is the voltage observed/applied at either a or b ports across the switch. note 5: the input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. note 6: unused control inputs must be held high or low. they may not float. dc electrical characteristics note 7: typical values are at v cc = 5.0v and t a = + 25 c note 8: measured by the voltage drop between a and b pins at the indicated current through the switch . on resistance is determined by t he lower of the voltages on the two (a or b) pins. supply voltage (v cc ) ? 0.5v to + 7.0v dc switch voltage (v s ) (note 4) ? 0.5v to + 7.0v dc input voltage (v in ) (note 5) ? 0.5v to + 7.0v dc input diode current (l ik ) v in < 0v ? 50 ma dc output (i out ) sink current 128 ma dc v cc /gnd current (i cc /i gnd ) + / ? 100 ma storage temperature range (t stg ) ? 65 c to + 150 c power supply operating (v cc) 4.0v to 5.5v input voltage (v in ) 0v to 5.5v output voltage (v out ) 0v to 5.5v input rise and fall time (t r , t f ) switch control input 0 ns/v to 5 ns/v switch i/o 0 ns/v to dc free air operating temperature (t a )- 4 0 c to + 85 c symbol parameter v cc (v) t a = ? 40 c to + 85 c units conditions min typ (note 7) max v ik clamp diode voltage 4.5 ? 1.2 v i in = ? 18 ma v ih high level input voltage 4.0 C 5.5 2.0 v v il low level input voltage 4.0 C 5.5 0.8 v i i input leakage current 5.5 1.0 a0 v in 5.5v 01 0 av in = 5.5v i oz off-state leakage current 5.5 1.0 a0 a, b v cc r on switch on resistance 4.5 4 7 v in = 0v, i in = 64 ma (note 8) 4.5 4 7 v in = 0v, i in = 30 ma 4.5 8 12 v in = 2.4v, i in = 15 ma 4.0 11 20 v in = 2.4v, i in = 15 ma i cc quiescent supply current 5.5 3 av in = v cc or gnd, i out = 0 ? i cc increase in i cc per input 5.5 2.5 ma one input at 3.4v other inputs at v cc or gnd
www.fairchildsemi.com 4 fst16211 ac electrical characteristics note 9: this parameter is guaranteed by design but is not tested. the bus switc h contributes no propagation delay other than the rc del ay of the typical on resistance of the switch and the 50pf load capacitance, when driven by an idea l voltage source (zero output impedance). capacitance (note 10) note 10: t a = + 25 c, f = 1 mhz, capacitance is characterized but not tested. ac loading and waveforms note: input driven by 50 source terminated in 50 note: c l includes load and stray capacitance note: input prr = 1.0 mhz, t w = 500 ns figure 1. ac test circuit figure 2. ac waveforms symbol parameter t a = ? 40 c to + 85 c, units conditions figure number c l = 50pf, r u = r d = 500 v cc = 4.5 C 5.5v v cc = 4.0v min max min max t phl , t plh propagation delay bus to bus (note 9) 0.25 0.25 ns v i = open figures 1, 2 t pzh , t pzl output enable time 1.5 6.0 6.5 ns v i = 7v for t pzl figures 1, 2 v i = open for t pzh t phz , t plz output disable time 1.5 7.0 7.2 ns v i = 7v for t plz figures 1, 2 v i = open for t phz symbol parameter typ max units conditions c in control pin input capacitance 3 pf v cc = 5.0v c i/o input/output capacitance 6 pf v cc , oe = 5.0v
5 www.fairchildsemi.com fst16211 54-ball fine-pitch ball grid array (fbga), jedec mo-205, 5.5mm wide package number bga54a
www.fairchildsemi.com 6 fst16211 56-lead shrink small outline package (ssop), jedec mo-118, 0.300" wide package number ms56a
7 www.fairchildsemi.com fst16211 24-bit bus switch 56-lead thin shrink small outline package (tssop), jedec mo-153, 6.1mm wide package number mtd56 technology description the fairchild switch family derives from and embodies fairchild s proven switch technology used for several years in its 74lvx3l384 (fst3384) bus switch product. fairchild does not assume any responsibility for use of any circuitry described, no circ uit 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 rea- sonably expected to result in a significant injury to the user. 2. a critical component in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com
www. onsemi.com 1 on semiconductor and are trademarks of semiconductor components industries, llc dba on semiconductor or its subsidiaries i n 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 semiconductors 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 wi thout limitation special, consequential or incidental damages. buyer is responsible for its products and applications using on semiconductor products, including compliance with all laws, reg ulations 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 dif ferent applications and actual performance may vary over time. all operating parameters, including typic als must be validated for each customer application by customers technical experts. on semiconductor does not convey any license under its patent rights nor the right s 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 semicondu ctor products for any such unintended or unauthorized application, buyer shall indemnify and hold on semiconductor and its officers, employees, subsidiaries, affiliates, and distrib utors 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. publication ordering information n. american technical support : 800 ? 282 ? 9855 toll free usa/canada europe, middle east and africa technical support: phone: 421 33 790 2910 japan customer focus center phone: 81 ? 3 ? 5817 ? 1050 www.onsemi.com literature fulfillment : literature distribution center for on semiconductor 19521 e. 32nd pkwy, aurora, colorado 80011 usa phone : 303 ? 675 ? 2175 or 800 ? 344 ? 3860 toll free usa/canada fax : 303 ? 675 ? 2176 or 800 ? 344 ? 3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your localsales representative ? semiconductor components industries, llc
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