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au9254 a21 usb hub controller technical reference manual revision 1.1 ? 1997-2003 alcor micro corp. all rights reserved
copyright notice copyright 1997 - 2003 alcor micro corp. all rights reserved. trademark acknowledgements the company and product names mentioned in this document may be the trademarks or registered trademarks of their manufacturers. disclaimer alcor micro corp. reserves the right to change this product without notice. alcor micro corp. makes no warranty for the use of its products and bears no responsibility for any errors that appear in this document. specifications are subject to change without notice. contact information: web site: http://www.alcormicro.com/ taiwan alcor micro corp. 4f-1, no 200, kang chien rd., nei hu, taipei, taiwan, r.o.c. phone: 886-2-8751-1984 fax: 886-2-2659-7723 san clara office los angeles office 2901 tasman drive, suite 206 9400 seventh st., bldg. a2 santa clara, ca 95054 rancho cucamonga, ca 91730 phone: (408) 845-9300 phone: (909) 989-3060 fax: (408) 845-9086 fax: (909) 944-0464
table of contents i table of contents 1.0 introduction ...................................................................................................... 1 1.1. description............................................................................................................. 1 1.2. features ................................................................................................................. 1 2.0 application block diagram ............................................................................. 3 3.0 pin assignment................................................................................................ 5 4.0 system architecture and reference design................................................. 10 4.1. au9254 block diagram......................................................................................... 10 4.2. sample schematics11............................................................................................. 11 5.0 electrical characteristics ................................................................................ 15 5.1. absolute maximum ratings................................................................................... 15 5.2. recommended operating conditions .................................................................... 15 5.3. general dc characteristics.................................................................................... 15 5.4. dc electrical characteristics for 5 volts operation................................................ 16 5.5. dc electrical characteristics for 3.3 volts operation............................................. 16 5.6. crystal oscillator circuit setup for characterization............................................. 17 5.7. usb transceiver characteristics ........................................................................... 17 5.8. esd test results ................................................................................................... 22 5.9. latch-up test results............................................................................................ 23 6.0 mechanical information................................................................................... 25 6.1 normal size package (body size 209 mil)???????????????..25 6.2 small size package (body size 150 mil)????????????????27
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introduction 1 1.0 introduction 1.1. description the AU9254A21 is an integrated single chip usb hub controller designed for the emerging industry-standard universal serial bus (usb). the AU9254A21 supports four usb downstream ports. each downstream port has power switch control, and over-current sensing. single chip integration makes the AU9254A21 the most cost effective stand-alone usb hub solution available in the market. downstream ports can be used to connect various usb peripheral devices, such as usb printers, modems, scanners, cameras, mice, or joysticks to the system without adding external glue logic. 1.2. features ? fully compliant with the universal serial bus specification, version 1.1. ? usb hub design is compliant with universal serial bus hub specification, revision 1.1. ? single chip integrated usb hub controller with embedded proprietary processor. ? supports four bus-powered/self-powered downstream ports. ? built-in 3.3v voltage regulator allows single +5v operating voltage, resulting in reduced overall system cost. ? runs at 12mhz frequency. ? 28-pin ssop package, both normal size (body size 209 mil) and smaller size (body size 150 mil) are available.
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application block diagram 3 2.0 application block diagram the AU9254A21 is a single chip 4-port usb hub controller. the upstream port is connected to the usb system. the downstream ports can be used for a mouse, joystick, scanner, printer or other device. usb host system printer usb downstream ports alcor micro au9254 scanner keyboard mouse usb downstream ports
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application block diagram 5 3.0 pin assignment the AU9254A21 is packaged as a 28-pin shrink small outline plastic package (ssop). the figure on the following page shows the signal names for each of the pins on the chip. accompanying the figure is the table that describes each of the pin signals. alcor micro au9254 a21 usb hub controller 28 - pin ssop 27 26 28 25 24 23 22 21 20 19 18 17 16 15 usb1_dp usb1_dm usb_dp usb_dm dp3_ovrcur dp4_ovrcur dp3_pwrup xtal2 xtal1 agnd/gndo nc dp2_ovrcur suspend dp1_ovrcur 2 3 1 4 5 6 7 8 9 10 11 12 13 14 usb2_dm usb2_dp usb3_dm usb3_dp usb4_dm usb4_dp dp4_pwrup dp2_pwrup bus_pwred vcc5o/vcc5ik gnd5o/gnd5ik vcc3v dp1_pwrup gangpower
system architecture and reference design 6 table 3-1. pin descriptions of AU9254A21, 28-pin ssop pin no pin name input/output description 1 usb_dm input/output usb d- for downstream port 2; add 15k ? pull-down to ground. 2 usb2_dp input/output usb d+ for downstream port 2; add 15k ? pull- down to ground. 3 usb3_dm input/output usb d- for downstream port 3; add 15k ? pull-down to ground. 4 usb3_dp input/output usb d+ for downstream port 3; add 15k ? pull- down to ground. 5 usb4_dm input/output usb d- for downstream port 4; add 15k ? pull-down to ground. 6 usb4_dp input/output usb d+ for downstream port 4; add 15k ? pull- down to ground. 7 dp4_pwrup output downstream port 4 power switch control. active low. 8 dp2_pwrup output downstream port 2 power switch control. active low. 9 bus_pwred input bus power. low indicates bus-powered. 10 vcc5o/vcc5ik power +5 v power supply. 11 gnd5o/gnd5ik power ground. 12 vcc3v power 3.3v output for upstream d+ pull-up. 13 dp1_pwrup output downstream port 1 power switch control. active low. 14 gangpower input ganged or individual port power selection. add a 10k pull down for ganged power. 10k pull up for individual power. 15 dp1_ovrcur input downstream port 1 over-current indicator. active low.
system architecture and reference design 7 16 suspend output device is in suspended state: active high. 17 dp2_ovrcur input downstream port 2 over-current indicator. active low. 18 nc 19 agnd/gndo power +5 v power supply. 20 xtal_1 input crystal in. 21 xtal_2 output crystal out. 22 dp3_pwrup output downstream port 3 power switch control. active low. 23 dp4_ovrcur input downstream port 4 over-current indicator. active low. 24 dp3_ovrcur input downstream port 3 over-current indicator. active low. 25 usb_dm input/output usb d- for upstream. 26 usb_dp input/output usb d+ for upstream port. need external 1.5k ? pull-up to 3.3v. 27 usb1_dm input/output usb d- for downstream port 1; add 15k ? pull-down to ground. 28 usb1_dp input/output usb d+ for downstream port 1; add 15k ? pull- down to ground.
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system architecture and reference design 9 4.0 system architecture and reference design 4.1. AU9254A21 block diagram root port 3.3v desc. rom suspend, resume and frame timer port control xcvr port 4 port control xcvr port 1 command processor usb sie hub repeater xcvr 4x pll 12 mhz 3.3v voltage regulator ..... .....
system architecture and reference design 10 4.2 sample schematics a lcor micro a u9254 demo boa rd a alcor micro AU9254A21 usb 4 port hub reference design a 12 wednesday , december 20, 2000 tit le size document number rev date: sheet of vcc3 vcc vcc vcc vcc vcc vcc vcc xtal1 xtal2 xtal1 xtal2 r1 1.5k c1 0.1uf c3 10uf c4 0.1uf r9 39 r7 39 c2 1uf r12 1k r5 39 r3 39 r4 39 r2 39 r6 39 r8 39 r10 39 r11 39 c6 150uf c7 150uf c8 150uf c9 150uf f1 mi n smd c 110 f2 minsmdc110 f4 minsmdc110 y1 12mhz f3 mi n smd c 110 r16 39 r15 1m c11 39pf con1 usb-b pw 1 data- 2 data+ 3 gnd 4 fgnd1 5 fgnd2 6 r13 10k u1 AU9254A21 usb2_dm 1 usb2_dp 2 usb3_dm 3 usb3_dp 4 usb4_dm 5 usb4_dp 6 dp4_pwrup 7 dp2_pwrup 8 bus_pwred 9 vcc50/vcc5ik 10 gnd5o/gnd5i 11 vcc3v 12 dp1_pwrup 13 gangpower 14 dp1_ovrcur 15 suspend 16 dp2_ovrcur 17 empty pin 18 agnd/gnd0 19 xtal 1 20 xtal 2 21 dp3_pwrup 22 dp4_ovrcur 23 dp3_ovrcur 24 usb_dm 25 usb_dp 26 usb1_dm 27 usb1_dp 28 c10 39pf r14 39 dm1 dm2 dp1 dp2 dp3 dm3 suspend dm4 dp4 vcc3 usb_vcc1 usb_vcc2 usb_vcc4 usb_vcc3 disclaimer: this schematic is for reference only. alcor micro corp. bears no responsibility for any error that appear in this document. s p ecifications are sub j ect to chan g e without notice.
system architecture and reference design 11 a lcor micro a u9254 demo boa rd a alcor micro AU9254A21 usb 4 port hub reference design a 22 wednesday , december 20, 2000 tit le size document number rev date: sheet of usb_vcc2 suspend usb_vcc1 suspend usb_vcc4 suspend usb_vcc3 suspend dp2 dp1 dm2 dm1 down usb_vcc4 dm4 dp4 usb_gnd3 dm3 usb_vcc3 usb_gnd4 up up usb_gnd1 dm2 usb_vcc1 dp2 dm1 down usb_gnd2 dp1 usb_vcc2 dp3 dp4 dp3 dm4 dm3 r19 10k q1 1n9012 1 3 2 d1 led r17 680 r20 10k q2 1n9012 1 3 2 d2 led r18 680 r24 10k q4 1n9012 1 3 2 d4 led r22 680 r23 10k q3 1n9012 1 3 2 d3 led r21 680 con3 pwr-2usb con2 pwr-2usb r25 15k r26 15k r27 15k r28 15k r29 15k r31 15k r32 15k r30 15k dm1 dp1 dp2 dm2 dm3 dp3 dp4 dm4 disclaimer: this schematic is for reference only. alcor micro corp. bears no responsibility for any error that appear in this document. s p ecifications are sub j ect to chan g e without notice.
system architecture and reference design 12 suspend u1 AU9254A21 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 usb2_dm usb2_dp usb3_dm usb3_dp usb4_dm usb4_dp dp4_pwrup dp2_pwrup bus_pwred vcc50/vcc5ik gnd5o/gnd5i vcc3v dp1_pwrup gangpower dp1_ovrcur suspend dp2_ovrcur empty pin agnd/gnd0 xta l 1 xta l 2 dp3_pwrup dp4_ovrcur dp3_ovrcur usb_dm usb_dp usb1_dm usb1_dp dp4_ovrcur r24 680 r2 39 d p1_pw r xtal2 r9 39 r12 1k suspend d3 led r16 33 vcc3 c9 39pf r22 10k r20 680 u2 1 2 3 4 5 en in g out adj d2 1n4148 dp3_pwr vcc_up r4 39 r23 10k vc c3 dp2_pwr suspend r29 10k usb_vcc3 r8 39 c3 1uf r14 33 suspend AU9254A21 usb hub buspower and self power changed a alcor micro AU9254A21 usb 4 port hub ref erence design a4 12 thursday , september 13, 2001 title size document number rev date: sheet of vcc r11 39 dm3 c13 10uf vcc q5 1n9012 1 3 2 y1 12mhz xtal1 q3 1n9012 1 3 2 d6 led r7 1.5k r28 10k c4 0.1uf d8 led q4 1n9012 1 3 2 suspend q1 1n9012 1 3 2 r15 1m r10 39 k1 relay spdt d4 led q2 1n9012 1 3 2 dp2 d1 1n4001 dp3_ovrcur disclaimer: this schematic is for reference only. alcor micro corp. makes no warranty for the use of its products and bears no responsibility for any error that appear in this document. specifications are subject to change without notice. c12 0.1uf dp4_pwr c8 0.1uf dp1_ovrcur con1 usb-b 1 2 3 4 5 6 pw data- data+ gnd fgnd1 fgnd2 c11 100uf r5 39 dp1 suspend r1 39 xtal2 d5 led dm1 c5 0.1uf j1 power jack 1 3 2 r21 18k r19 680 dm4 xtal1 r17 1k r3 39 c7 10uf vcc_up dp2_ovrcur c10 39pf r13 10k r25 680 usb_vcc1 f1 fb c2 47p usb_vcc2 usb_vcc4 dm2 r26 680 r6 39 r27 10k dp3 dp4 vcc_up d7 led c1 47p r18 56k
system architecture and reference design 13 dp4 r34 15k disclaimer: this schematic is for reference only. alcor micro corp. makes no warranty for the use of its products and bears no responsibility for any error that appear in this document. specifications are subject to change without notice. r37 15k usb_vcc3 dp1 c20 0.1uf d p 2_o v r c u r con5 usb-a 1 2 3 4 5 6 vcc data- data+ gnd fgnd1 fgnd2 dp1_pwr r38 15k dp1 c26 47p r33 1k r39 15k con2 usb-a 1 2 3 4 5 6 vcc data- data+ gnd fgnd1 fgnd2 usb_vcc2 dp2_pwr r41 15k dp3 c30 120uf dm4 con4 usb-a 1 2 3 4 5 6 vcc data- data+ gnd fgnd1 fgnd2 dp3_pwr dp2 vcc c14 47p c28 120uf dm2 dm2 dm1 c25 47p usb_vcc4 usb_vcc3 c21 0.1uf dp2 dp1 r35 15k r30 1k d p 3_o v r c u r dm1 c29 120uf dm4 r40 15k usb_vcc1 c22 47p dp2 r31 1k dp4 dm3 c24 47p c17 0.1uf dm3 r32 1k c18 0.1uf d p 1_o v r c u r c19 0.1uf r36 15k usb_vcc2 AU9254A21 usb hub buspower self power changed a alcor micro AU9254A21 usb 4 port hub ref erence design a4 22 thursday , september 13, 2001 title size document number rev date: sheet of dp3 c23 47p c27 47p dm4 dm1 usb_vcc1 dp4_pwr dm3 dp3 c15 47p usb_vcc1 vcc usb_vcc4 c31 120uf usb_vcc3 usb_vcc4 dp4 usb_vcc2 d p 4_o v r c u r c16 0.1uf con3 usb-a 1 2 3 4 5 6 vcc data- data+ gnd fgnd1 fgnd2 u3 2527 or compatible 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 flga# ena# outa gnd in_cd outc enc# flgc# flgd# end# outd gnd1 in_ab outb enb# flgb# dm2
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electrical characteristics 15 5.0 electrical characteristics 5.1. absolute maximum ratings symbol parameter rating units v cc power supply -0.3 to 6.0 v v in input voltage -0.3 to vcc+0.3 v v out output voltage -0.3 to vcc+0.3 v t stg storage temperature -40 to 125 ? c 5.2. recommended operating conditions symbol parameter min typ max units v cc power supply 4.5 5.0 5.5 v v in input voltage 0 v cc v t opr operating temperature -5 85 o c 5.3. general dc characteristics symbol parameter conditions min typ max units i il input low current no pull-up or pull-down -1 1 a i ih input high current no pull-up or pull-down -1 1 a i oz tri-state leakage current -10 10 a c in input capacitance 4 f c out output capacitance 4 f c bid bi-directional buffer capacitance 4 f
electrical characteristics 16 5.4. dc electrical characteristics for 5 volts operation ( under recommended operating conditions and v cc =4.5v ~ 5.5v , tj= -40 o c to + 85 o c ) symbol parameter conditions min typ max units v il input low voltage ttl 0.8 v v il input low voltage cmos 0.3*v cc v v il schmitt input low voltage ttl 1.10 v v il schmitt input low v oltage cmos 1.84 v v ih input high voltage ttl 2.2 v v ih input hight voltage cmos 0.7*v cc v v ih schmitt input high voltage ttl 1.87 v v ih schmitt input high voltage cmos 3.22 v v ol output low voltage i ol =2, 4, 8, 12, 16, 24 ma 0.4 v v oh output high voltage i oh =2, 4, 8, 12, 16, 24 ma 3.5 v r i input pull-up/down resistance vil=0 v or vih=v cc 50 k ? 5.5. dc electrical characteristics for 3.3 volts operation ( under recommended operating conditions and v cc =3.0v ~ 3.6v , tj = -40 o c to +85 o c ) symbol parameter conditions min typ max units v il input low voltage cmos 0.3*v cc v v il schmitt input low voltage cmos 1.22 v v ih input hight voltage cmos 0.7*v cc v v ih schmitt input high voltage cmos 2.08 v v ol output low voltage i ol =2, 4, 8, 12, 16, 24 ma 0.4 v v oh output high voltage i oh =2, 4, 8, 12, 16, 24 ma 2.3 v r i input pull-up/down resistance vil=0 v or vih=v cc 75 k ?
electrical characteristics 17 5.6. crystal oscillator circuit setup for characterization the following setup was used to measure the open loop voltage gain for crystal oscillator circuits. the feedback resistor serves to bias the circuit at its quiescent operating point and the ac coupling capacitor, cs, is much larger than c1 and c2. 5.7. usb transceiver characteristics recommended operating conditions limits symbol parameter conditions min max unit v cc dc supply voltage 3.0 3.6 v v i dc input voltage range 0 5.5 v v i/o dc input range for i/os 0 v cc v v o dc output voltage range 0 v cc v t amb operating ambient temperature range in free air see dc and ac characteristics for individual device 0 70 ? c
electrical characteristics 18 absolute maximum ratings (notes 1 and 2) in accordance with the absolute maximum rating system, voltages are referenced to gnd (ground=0v) limits symbol parameter conditions min max unit v cc dc supply voltage -0.5 +6.5 v i ik dc input diode current vi<0 -50 ma v i dc input voltage note 3 -0.5 +5.5 v v i / o dc input voltage range for i/os -0.5 vcc +0.5 v i ok dc output diode current vo> vcc or vo<0 +/-50 ma v o dc output voltage note 3 -0.5 vcc +0.5 v i o dc output source sink current for vp/vm and rcv pins vo=0 to vcc +/-15 ma i o dc output source or sink current for d+/d- pins vo= 0 to vcc +/-50 ma i cc , i gnd dc vcc or gnd current +/-100 ma t sto storage temperature range -60 +150 ? c p tot power dissipation per package mw notes: 1. stresses beyond those listed may cause permanent damage to the device. these are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. exposure to absolute maximum rated conditions for extended periods may affect device reliability. 2. the performance capability of a high performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. the maximum junction temperature of this integrated circuit should not exceed 150 ? c. 3. the input and output voltage ratings may be exceeded if the input and output clamp current ratings are observed.
system architecture and reference design 19 dc electrical characteristics over recommended operating conditions. voltages are referenced to gnd (ground=0v). limits -40 0 ? c to +85 0 ? c symbol parameter test conditions min typ max unit vhys hysteresis on inputs vcc=3.0v to 3.6v (note 3) 0.3 0.4 0.5 v vih high level input vcc=3.0v to 3.6v (note 3) 1.5 2.0 v vil low level input vcc=3.0v to 3.6v (note 3) 0.8 1.1 v roh output impedance (high state) note 2 28 34 43 ohm rol output impedance (low state) note 2 28 35 43 ohm voh high level output (note 3) vcc=3.0v io=6ma vcc=3.0v io=4ma vcc=3.0v io=100a 2.2 2.4 2.8 2.7 v vol low level output (note 3) vcc=3.0v io=6ma vcc=3.0v io=4ma vcc=3.0v io=100a 0.3 0.7 0.4 0.2 v iq quiescent supply current vcc=3.6v vi=vcc or gnd io=0 330 600 a isup supply current in suspend vcc=3.6v vi=vcc or gnd io=0 70 a ifs active supply current (full speed) vcc=3.3v 9 14 ma ils active supply current (low speed) vcc=3.3v 2 ma ileak imput leakage current vcc=3.6v vi=5.5v or gnd, not for i/o pins +/- 0.1 +/- 0.5 a ioff 3-state output off-state current vi=vih or vi l ; vo=vcc or gnd +/-10 a notes: 1. all typical values are at vcc=3.3v and tamb=25 ? c. 2. this value includes an external resistor of 24 ohm +/-1%. see "load d+ and d-" diagram for testing details. 3. all signals except d+ and d-.
system architecture and reference design 20 ac electrical characteristics gnd=0v, t r = t f =3.0 ns; c l =50 pf; rl=500 ohms limits (t amb ) 0 0 ? c to +25 0 ? c 0 0 ? c to +70 0 ? c symbol parameter waveform min typ max min max unit tplh tphl vmo/vpo to d+/d- full speed 1 0 0 12 12 0 0 14 14 ns trise tfall rise and fall times full speed 2 4 4 9 9 20 20 4 4 20 20 ns trfm rise and fall time matching full speed 90 110 90 110 % tplh tphl vmo/vpo to d+/d- low speed 1 120 120 300 300 300 300 ns trise tfall rise and fall times low speed 2 75 75 300 200 75 75 300 200 ns trfm rise and fall time matching low speed 70 130 70 130 % tplh tphl d+/d- to rcv 3 9 9 16 16 16 16 ns tplh tphl d+/d- to vp/vm 1 4 4 8 8 8 8 ns tphz tpzh tplz tpzl oe# to d+/d- rl = 500ohm 4 12 12 10 10 12 12 10 10 ns tsu setup for speed 5 0 ns vcr crossover point 1 3 1.3 2.0 1.3 2.0 v notes: 1. the crossover point is in the range of 1.3v to 2.5v for the low speed mode with a 50 pf capacitance.
system architecture and reference design 21
electrical characteristics 22 5.8. esd test results test description : esd testing was performed on a zapmaster system using the human- body-model (hbm) and machine-model (mm), according to mil-std 883 and eiaj ic- 121 respectively. ? human-body-model stresses devices by sudden application of a high voltage supplied by a 100pf capacitor thro ugh 1.5k-ohm resistance. ? machine-model stresses devices by sudden application of a high voltage supplied by a 200pf capacitor thro ugh very low (0 ohm) resistance. test circuit & condition - zap interval: 1 second - number of zaps: 3 positive and 3 negative at room temperature - criteria: i-v curve tracing esd data model mode s/s target results hbm vdd, vss, i/c 15 6000v pass mm vdd, vss, i/c 15 200v pass
electrical characteristics 23 5.9. latch-up test results test description : latch-up testing was performed at room ambient using an imcs-4600 system which applies a stepped voltage to one pin per device with all other pins open except vdd and vss which were biased to 5volts and ground respectively. testing was started at 5.0v (positive) or 0v (negative), and the dut was biased for 0.5 seconds. if neither the put current supply nor the device current supply reached the predefined limit (dut=00ma, icc=100ma), then the voltage was increased by 0.1volts and the pin was tested again. this procedure was recommended by the jedec jc-40.2 cmos logic standardization committee. notes: 1. dut: the device under test. 2. put: the pin under test. test circuit: positive input/output overvoltage/overcurrent
electrical characteristics 25 test circuit: negative input/output overvoltage/overcurrent supply overvoltage test latch-up data mode voltage (v)/cuitent(ma) s/s results + voltage - 11.0 11.0 5 5 pass pass + current - 200 200 5 5 pass pass vdd - vxx 9.0 5 pass
mechanical information 25 6.0 mechanical information 6.1. normal size package (body size 209 mil) following diagrams show the dimensions of the normal size 28-pin ssop package. measurements are in inches. dimensions do not include mold flash and dambar protrusion; allowable mold flash is 0.010 inch.
mechanical information 26 common dimension common dimension millimeters inch symbol min. nom. max. min. nom. max. a 2.00 0.079 a1 0.05 0.002 a2 1.65 1.75 1.85 0.065 0.069 0.073 b 0.22 0.38 0.009 0.015 b1 0.22 0.30 0.33 0.009 0.012 0.013 c 0.09 0.25 0.004 0.010 c1 0.09 0.15 0.21 0.004 0.006 0.008 d 9.9 10.2 10.5 0.390 0.402 0.413 e 7.40 7.80 8.20 0.291 0.307 0.323 e1 5.00 5.30 5.60 0.197 0.209 0.220 e 0.65 bsc 0.0256 bsc l 0.55 0.75 0.95 0.021 0.030 0.037 l1 0.25 ref. 0.050 ref. r1 0.09 0.004 0 0 4 0 8 0 0 0 4 0 8 0
mechanical information 27 6.2. small size package (body size 150 mil) following diagrams show the dimensions of the small size 28-pin ssop package. measurements are in inches. dimensions do not include mold flash and dambar protrusion; allowable mold flash is 0.010 inch.
mechanical information 28 common dimension common dimension millimeters inch symbol min. nom. max. min. nom. max. a 1.35 1.63 1.75 0.053 0.064 0.069 a1 0.10 0.15 0.25 0.004 0.006 0.010 a2 1.50 0.059 b 0.20 0.30 0.008 0.012 b1 0.20 0.25 0.27 0.008 0.010 0.011 c 0.18 0.25 0.007 0.010 d 9.8 9.91 10.01 0.386 0.390 0.394 e 5.79 5.99 6.20 0.0228 0.236 0.244 e1 3.81 3.91 3.99 0.150 0.154 0.157 e 0.635 bsc 0.025 bsc l 0.41 0.635 1.27 0.016 0.025 0.050 l1 0.838 ref. 0.033 ref. r1 0.20 0.008 0 0 8 0 0 0 8 0

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