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this is information on a product in full production. march 2014 docid026023 rev 1 1/23 AS21P2THB low voltage high bandwidth dual single-pole double-throw analog switch datasheet - production data features ? ultra low power dissipation: ?i cc = 1 ? a (max.) at t a = 85 c ? low ?on? resistance: ?r on = 4.8 ? (t a = 25 c) at v cc = 4.3 v ?r on = 5.9 ? (t a = 25 c) at v cc = 3.0 v ? wide operating voltage range: ?v cc (opr.) = 1.65 v to 4.3 v ? 4.3 v tolerant and 1.8 v compatible threshold on digital control input at v cc = 2.3 v to 3.0 v ? typical bandwidth (-3 db) at 800 mhz on all channels ? usb (2.0) high speed (480 mbps) signal switching compliant ? integrated fail safe function ? interrupt function to indicate to the processor that the device is in dedicated port charging mode ? latch-up performance exceeds 500 ma per jesd 78, class ii ? esd performance exceeds jesd22: ? dn pins: 4000-v human body model (a114- a) ? all other pins: 2000-v human body model (a114-a) applications ? wearable ? sport and fitness ? portable equipment description the AS21P2THB is a high-speed cmos low voltage dual analog spdt (single pole double throw) switch or 2:1 mu ltiplexer/de multiplexer switch fabricated in silicon gate c2mos technology. it is designed to operate from 1.65 v to 4.3 v, thus making this device the ideal selection for portab le applications. the sel input is provided to control the switch. the switch ns1 is on (connected to common ports dn) when the sel in put is held high and off (high impedance state exists between the two ports) when sel is held low, the switch ns2 is on (it is connected to common port dn) when the sel input is held low and off (high impedance state exists between the two ports) when sel is held high. AS21P2THB has an integrated fail safe function to withstand over-voltage condition when the device is powered off. the AS21P2THB also has an interrupt pin which sends a signal to the processor when the device is in dedicated port charging mode. additional key features are fast switching speed, break-before- make-delay time and ultralow power consumption. all inputs and outputs are equipped with protection circuits ag ainst static discharge, giving them esd immunity and transient excess voltage. qfn10 (1.8 x 1.4 mm) table 1. device summary order code package packaging AS21P2THB qfn10 (1.8 x 1.4 mm) tape and reel www.st.com
contents AS21P2THB 2/23 docid026023 rev 1 contents 1 pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 dedicated port charging detecti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4.1 recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 8 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
docid026023 rev 1 3/23 AS21P2THB pin settings 23 1 pin settings figure 1. pin connecti on (top through view) table 2. pin description pin number symbol name and function 1 int interrupt 2 vcc positive supply voltage 3 sel control 4 2s1 independent channel for switch 2 5 2s2 independent channel for switch 2 6 d2 common channel for switch 2 7 gnd ground (0 v) 8 d1 common channel for switch 1 9 1s2 independent channel for switch 1 10 1s1 independent channel for switch 1 ,1 7 9&& 6(/ ' *1' ' 6 6 6 6
logic diagram AS21P2THB 4/23 docid026023 rev 1 2 logic diagram figure 2. logic block diagram figure 3. logic equivalent circuit table 3. truth table sel switch ns1 switch ns2 honoff (1) 1. high impedance. loff (1) on ' ' 6 6 6 6 6(/ 'q 6(/ q6 q6 $09
docid026023 rev 1 5/23 AS21P2THB dedicated port charging detection 23 3 dedicated port charging detection the AS21P2THB has a built-in dedicated port charging detection circuit to detect the condition when the usb d+/d- lines are both in high state. when this occurs, the device sends an interrupt signal to the processor to indicate that the connected usb device is in dedicated port charging mode. figure 4. interrupt function logic representation d1 d2 1s1 1s2 2s1 2s2 sel int
maximum rating AS21P2THB 6/23 docid026023 rev 1 4 maximum rating stressing the device above the rating listed in the ?absolute maximum ratings? table may cause permanent damage to the device. these are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affe ct device reliability. 1. derate above 70 c by 18.5 mw/c. 4.1 recommended operating conditions table 4. absolute maximum ratings symbol parameter value unit v cc supply voltage -0.5 to 5.5 v v i dc input voltage -0.5 to v cc + 0.5 v v ic dc control input voltage -0.5 to 5.5 v v o dc output voltage -0.5 to v cc + 0.5 v i ikc dc input diode current on control pin (v sel < 0v) -50 ma i ik dc input diode current (v sel < 0v) 50 ma i ok dc output diode current 20 ma i o dc output current 128 ma i op dc output current peak (pulse at 1ms, 10% duty cycle) 300 ma i cc or i gnd dc v cc or ground current 100 ma p d power dissipation at t a = 70 c (1) 1120 mw t stg storage temperature -65 to +150 c t l lead temperature (10 sec) 300 c table 5. recommended operating conditions symbol parameter value unit v cc supply voltage 1.65 to 4.3 v v i input voltage 0 to v cc v v ic control input voltage 0 to 4.3 v v o output voltage 0 to v cc v t op operating temperature -40 to 85 c dt/dv input rise and fall time control input v l = 1.65 v to 2.7 v 0 to 20 ns/v v l = 3.0 to 4.3 v 0 to 10
docid026023 rev 1 7/23 AS21P2THB electrical characteristics 23 5 electrical characteristics table 6. dc specifications symbol parameter v cc (v) test condition value unit t a =25c -40 to 85c min typ max min max v ih high level input voltage 1.65 ? 1.95 ? 0.65 v cc ? ? 0.65v cc ? v 2.3 ? 2.5 1.2 ? ? 1.2 ? 2.7 ? 3.0 1.3 ? ? 1.3 ? 3.3 ? 3.6 1.4 ? ? 1.4 ? 4.3 1.6 ? ? 1.6 ? v il low level input voltage 1.65 ? 1.95 ? ? ? 0.25 ? 0.25 v 2.3 ? 2.5 ? ? 0.25 ? 0.25 2.7 ? 3.0 ? ? 0.25 ? 0.25 3.3 ? 3.6 ? ? 0.30 ? 0.30 4.3 ? ? 0.40 ? 0.40 v ih-int high level input voltage for int 4.3 ? 2.4 ? ? 2.4 ? v v il-int low level input voltage for int 4.3 ? ? ? 0.9 ? 0.9 v v ol-int low level output voltage for int 4.3 i o = 4 ma ? ? 0.40 ? 0.50 v r peak switch on peak resistance 1.8 v s = 0 v to v cc i s = 8 ma ? 15.1 17.8 ? ? ? 2.7 ? 6.4 8.0 ? ? 3.0 ? 5.9 7.5 ? ? 3.7 ? 5.0 6.5 ? ? 4.3 ? 4.8 6.1 ? ? r on switch on resistance 3.0 v s = 3 v i s = 8 ma ?4.25.4 ? ? ? 3.0 v s = 0.4 v i s = 8 ma ?5.77.0 ? ?
electrical characteristics AS21P2THB 8/23 docid026023 rev 1 ? r on on resistance match between channels (1) 1.8 v s at r on max i s = 8 ma ??? ? ? ? 2.7 ? ? ? ? ? 3.0 ? 0.1 ? ? ? 3.7 ? ? ? ? ? 4.3 ? ? ? ? ? r flat on resistance flatness (2) 1.8 v s = 0 v to 0.4 v i s = 8 ma ?4.5? ? ? ? 1.8 v s = 0 v to v cc i s = 8 ma ?9.0? ? ? 2.7 ? 2.2 ? ? ? 3.0 ? 1.8 ? ? ? 3.7 ? 1.6 ? ? ? 4.3 ? 1.6 ? ? ? i off off state leakage current (sn), (d) 4.3 v s = 0.3 or 4 v -20 ? 20 -100 100 na i in input leakage current 0 to 4.3 v sel = 0 to 4.3 v -0.2 ? 0.2 -1.0 1.0 a i cc quiescent supply current 1.65 to 4.3 v sel = vcc or gnd -0.2 0.2 -1.0 1.0 a i cclv quiescent supply current for low voltage driving 4.3 v sel = 1.65 v ? 37 50 ? 100 a v sel = 1.80 v ? 33 40 ? 50 v sel = 2.60 v ? 11 20 ? 30 1. ? r on = max |msn-nsn|, where m = 1, 2 and n = 1, 2, n = 1, 2 2. flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges. table 6. dc specifications (continued) symbol parameter v cc (v) test condition value unit t a =25c -40 to 85c min typ max min max
docid026023 rev 1 9/23 AS21P2THB electrical characteristics 23 table 7. ac characteristics (c l = 35 pf, r l : 50 ? , t r = t f ? 5 ns) symbol parameter v cc (v) test conditions value unit t a = 25 c -40 to 85 c min typ max min max t plh, t phl propagation delay 1.65 - 1.95 ? ?0.21? ?? ns 2.3 - 2.7 ? 0.15 ? ? ? 3.0 - 3.3 ? 0.14 ? ? ? 3.6 - 4.3 ? 0.13 ? ? ? t on turn on time 1.65 - 1.95 v s = 0.8 v ? 34 ? ? ? ns 2.3 - 2.7 v s = 1.5 v ?2023?26 3.0 - 3.3 ? 15 17 ? 20 3.6 - 4.3 ? 13 15 ? 17 t off turn off time 1.65 - 1.95 v s = 0.8 v ? 27 ? ? ? ns 2.3 - 2.7 v s = 1.5 v ?1922?25 3.0 - 3.3 ? 14 16 ? 18 3.6 - 4.3 ? 11 13 ? 14 t d break-before- make time delay 1.65 - 1.95 c l = 35 pf r l = 50 ? v s = 1.5 v ?10??? ns 2.3 - 2.7 ? 6 ? ? ? 3.0 - 3.3 ? 4 ? ? ? 3.6 - 4.3 ? 3 ? ? ?
electrical characteristics AS21P2THB 10/23 docid026023 rev 1 table 8. ac electrical characteristics (c l = 5 pf, r l = 50 ? , t a = 25 c) symbol parameter v cc (v) test conditions value unit t a = 25 c -40 to 85 c min typ max min max q charge injection 1.65 c l = 100 pf v gen = 0 v r gen = 0 ? ?3.9? ? ? pc 2.3 ? 4.8 ? ? ? 3.0 ? 5.2 ? ? ? 4.3 ? 6.4 ? ? ? oirr off isolation (1) 1.65 ? 4.3 v s = 1v rms , f = 1 mhz signal = 0 dbm ?-78? ? ? db v s = 1 v rms , f = 10 mhz signal = 0 dbm ?-57? ? ? xtalk crosstalk 1.65 ? 4.3 v s = 1 v rms , f = 1 mhz signal = 0 dbm ?-78? ? ? db v s = 1v rms , f = 10 mhz signal = 0 dbm ?-58? ? ? bw -3db bandwidth 3.0 ? 4.3 r l = 50 ? signal = 0 dbm ?800? ? ?mhz c in control pin input capacitance v cc = 0v ?2??? pf c on sn port capacitance when switch is enabled 3.3 f = 240 mhz ? 6 ? ? ? c off sn port capacitance when switch is disabled 3.3 f = 240 mhz ? 2 ? ? ? 1. off isolation = 20 log10 (v d /v s ), v d = output, v s = input to off switch.
docid026023 rev 1 11/23 AS21P2THB electrical characteristics 23 table 9. usb related ac electrical characteristics symbol parameter v cc (v) test conditions value unit t a = 25 c -40 to 85 c min typ max min max t sk(0) channel-to- channel skew 3.0 - 3.6 c l = 10 pf ? 26 ? ? ? ps t sk(p) skew of opposite transition of the same output 3.0 - 3.6 c l = 10 pf ? 60 ? ? ? ps t j total jitter 3.0 - 3.6 r l = 50 ? c l = 10 pf t r = t f = 750 ps at 480 mbps ?130? ? ? ps
test circuit AS21P2THB 12/23 docid026023 rev 1 6 test circuit figure 5. on resistance i ds v cs14071 v cc s1 s2 in gnd gnd d vs
docid026023 rev 1 13/23 AS21P2THB test circuit 23 figure 6. off leakage figure 7. off isolation v ss v cc in s2 a cs14081 d v d a v cc gnd s(off) i d(off) i gnd in s2 s1 v cc v out 50 gnd v s cs00381
test circuit AS21P2THB 14/23 docid026023 rev 1 figure 8. bandwidth figure 9. channel-to-channel crosstalk cs00371 v cc v cc s1 s2 in gnd d v out cs14091
docid026023 rev 1 15/23 AS21P2THB test circuit 23 figure 10. test circuit 1. c l = 5/35 pf or equivalent (inc ludes jig and probe capacitance) 2. r l =50 ? or equivalent 3. r t =z out of pulse generator (typically 50 ? )
test circuit AS21P2THB 16/23 docid026023 rev 1 figure 11. break-before-make time delay figure 12. switching time and charge injection (v gen = 0 v, r gen = 0 ? , r l = 1 m ? , c l = 100 pf) figure 13. turn on, turn off delay time
docid026023 rev 1 17/23 AS21P2THB package mechanical data 23 7 package mechanical data in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions a nd product status are available at: www.st.com . ecopack ? is an st trademark. figure 14. package outline for qfn10 (1.8 x 1.4 x 0.5 mm) - 0.4 mm pitch 7936408 rev.d
package mechanical data AS21P2THB 18/23 docid026023 rev 1 table 10. qfn10 (1.8 x 1.4 x 0.5 mm) - 0.4 mm pitch symbol millimeters min. typ. max. a 0.45 0.50 0.55 a1 0 0.02 0.05 a3 0.127 b 0.15 0.20 0.25 d 1.75 1.80 1.85 e 1.35 1.40 1.45 e 0.40 l 0.35 0.40 0.45 figure 15. footprint recommendations for qfn1 0 (1.8 x 1.4 x 0.5 mm) - 0.4 mm pitch
docid026023 rev 1 19/23 AS21P2THB package mechanical data 23 figure 16. carrier tape for qfn10 (1.8 x 1.4 x 0.5 mm) - 0.4 mm pitch
package mechanical data AS21P2THB 20/23 docid026023 rev 1 figure 17. reel information (front side) fo r qfn10 (1.8 x 1.4 x 0.5 mm) - 0.4 mm pitch
docid026023 rev 1 21/23 AS21P2THB package mechanical data 23 figure 18. reel information (back view) for qfn10 (1.8 x 1.4 x 0.5 mm) - 0.4 mm pitch
revision history AS21P2THB 22/23 docid026023 rev 1 8 revision history table 11. document revision history date revision changes 07-mar-2014 1 initial release.
docid026023 rev 1 23/23 AS21P2THB 23 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. st products are not designed or authorized for use in: (a) safety critical applications such as life supporting, active implanted devices or systems wi th product functional safety requirements; (b) aeronautic applications; (c) automotive applications or environments, and/or (d) aerospace applications or environments. where st products are not designed for such use, the purchaser shall use products at purchaser?s sole risk, even if st has been informed in writing of such usage, unless a product is expressly designated by st as being intended for ?automotive, automotive safety or medical? industry domains according to st product design specifications. products formally escc, qml or jan qualified are deemed suitable for use in aerospace by the corresponding governmental agency. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2014 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

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