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data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 1 general description the ap389x is a low-cost high-resolution single chip solution for apa capacitive touch screen. it is an 8-bit single cycle 8051 microcontroller with i 2 c interface. the chip includes 8-bit successive approximation analog-to-digital converters with an i 2 c interface and multiplexer- switcher circuits for flexible measurement of analog signal from apa panel. an accurate switched-capacitor integrator is built-in and it can auto calibrate the pixel parameters for a wide range of capacitance on the touch screen (0.1pf to 4pf). on-c hip capacitor can replace external component. this touch screen controller (tsc) with cmos integration circuit provides an ideal choice for apa touch panel. the ap389x is specified over the temper ature range of -40c to 95c. the ap389x is availabl e in qfn-77-56 (for ap3890) and qfn-88-68 (for ap3891 and ap3892) packages. features ? mutual capacitive touch sensing ? dual power supply: 2.8v to 3.6v operation voltage; 1.6v to 2.0v operation voltage ? up to 30/38/36 drive lines and 17/22/23 sense lines ? dedicated internal two-wire serial control bus i 2 c and uart between ap389x and host ? single-end integrator with programmable gain control and offset control ? multiplexed analog digitization with two 8-bit resolution odd/even scan sar adcs and its dedicated 2x to 8x accumulator xsram buffers features (continued) ? single cycle 8051 cpu core, maximum opera- ting clock up to 24mhz from iosc (zero wait state); 48mhz from iosc(with wait state) 4mhz to 48mhz internal oscillator (iosc) 64k-byte flash rom 256-byte internal sram and 12032-byte xsram extra xsrams for afe: ? 89612-bit2 xsram for 8-bit sar adc ? 8968-bit xsram for 8-bit parasitical capacitor compensator two 16-bit timers t0/t1 and one 16-bit ect timer t2 one i 2 c slave controller and one i 2 c master controller shared with the same port ? with asynchronous i 2 c slave address detection logic design 4 general purpose gpio pins one external interrupt pin one uart data transfer output pin ? isp/iap via i2c port ? operation temperature range: -40c to 95c ? package types: qfn-77-56 and qfn-88-68 ? rohs compliance ? operating mode: mode description power-down no scan with power-down mode standard higher scan rate when fingers are on panel, iosc can up to 4mhz to 48mhz applications ? mobile phones ? personal digital assistants ? smart hand-held or gaming devices figure 1. package types of ap389x qfn-77-56 qfn-88-68
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 2 pin configuration fn package (qfn-77-56) ep pin 1 mark 15 56 1 16 14 13 12 11 10 9 8 7 6 5 3 2 4 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 figure 2. pin configurat ion of ap3890 (top view)
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 3 pin configuration (continued) fn package (qfn-88-68) p1.3/scl testen p1.7/ txd1 /pint0.1/extclkin p1.2/sda rstn p3.6/rxd1(gpio18) /t0 d38 d37 d36 d35 d34 d33 d30 d29 d28 d26 d24 d23 d22 d21 d20 d18 d17 d16 d15 d14 d13 d12 d6 d11 d5 d4 d3 d2 d1 vdd18 vdd33 d7 s1 s3 s4 s7 s8 s9 s10 s11 s12 s13 s14 s15 s17 s18 s19 s20 s21 69 vss ep 1 2 3 4 5 6 7 pin 1 mark 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 d32 d31 d27 d25 d19 d10 d9 d8 s2 s5 s6 s16 s22 figure 3. pin configurat ion of ap3891 (top view)
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 4 pin configuration (continued) fn package (qfn-88-68) d9 d24 d23 d22 d21 d20 d18 d17 d16 d15 d14 d13 d12 d11 s7 s8 s9 s10 s11 s12 s13 s14 s15 s17 s18 s19 s20 s21 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 d8 d19 d10 s23 s16 s22 figure 3. pin configurat ion of ap3892 (top view)
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 5 pin description pin number pin name pin type pin function qfn-56 ap3890 qfn-68 ap3891 ap3892 1 1 1 p1.7/ txd1/ pint0.1/ extclkin/ t0 i/o port 1.7 gpio 8051 p1.7 gpio txd1 this pin also can be configured as txd of uart 1 pint0.1 this pin also can be configured as the expanded int0 interrupt external clock input external clock input source. t0 timer 0 input this pin also can be configured as timer 0 input 2 2 2 testen i test mode enable high active this pin has an internal weakly pull low resistor connected. if it is connected high, the chip enters into test mode condition 3 3 3 p1.2/sda (open-drain) i/o port 1.2 gpio 8051 p1.2 gpio sda this pin also can be configured as the sda signal of the i2c master or i2c slave controller. in this operation mode, this pin should also be configured as bi-directional i/o with open-drain output 4 4 4 p1.3/scl (open-drain) i/o port 1.3 gpio 8051 p1.3 gpio scl this pin also can be configured as the scl signal of the i 2 c master or i 2 c slave controller. in i 2 c master mode, this pin should be configured as open-drain output. in i 2 c slave, this pin should be configured as input only 5 5 5 rstn i reset low active typically connect a resistor to vdd18 and a capacitor to vss low asserted and threshold at 0.5v dd18 . when forced low, the chip enters into reset condition this pin should not be connected to any level above v dd18
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 6 pin description (continued) pin number pin name pin type pin function qfn-56 ap3890 qfn-68 ap3891 ap3892 - 6, 7 - d38, d37 o, a d38, d37 driving line 38 to line 37 - 8 to 13 6 to 11 d36 to d31 o, a d36, d35, d34, d33, d32, d31 driving line 36 to line 31 6 to 35 14 to 43 12 to 41 d30 to d1 o, a d30, d29, d28, d27, d26, d25, d24, d23, d22, d21, d20, d19, d18, d17, d16, d15, d14, d13, d12, d11, d10, d9, d8, d7, d6, d5, d4, d3, d2, d1 driving line 30 to line 1 36 44 42 p3.6/ rxd1 (open- drain) i/o port 3.6 gpio 8051 p3.6 gpio this pin should be configured as open-drain output and the input range can be 1.8v to 3.3v rxd1 this pin also can be configured as rxd of uart 1 37 69 43 vss power ground voltage. 0v 38 45 44 vdd18 power internal regulator output. 1.6v to 2.0v typical decoupling capacitors of 0.1 ? ? supply voltage. 2.8v to 3.6v a good decoupling capacitor between vdd33 and vss is critical for good performance 40 to 56 47 to 63 46 to 62 s1 to s17 i, a s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15, s16, s17 sensing line 1to line 17 - 64 to 68 63 to 67 s18 to s22 i, a s18, s19, s20, s21, s22 sensing line 18 to line 22 - - 68 s23 i, a s23 sensing line 23
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 7 functional block diagram figure 4. main afe i/o pin assignment and whole chip?s functional block diagram mode control register table sda analog signals s[23:1] scl rstn d[38:1] mux 64k flash 12k sram i2c m/s sfr mcu 4~48m osc clk mdu int testen por18 por33 lvd stage 23 / stage 9 stage 8 stage 7 stage 6 stage 5 stage 4 stage 3 stage 2 stage 1 stage 0 dai s/h switch matrix sar 8-bit adc vdd18 vdd33 p3.6 s11 s10 s9 s8 s7 s6 s1 s3 s4 s5 s2 d1 d4 d6 d7 d8 d12 d11 d10 d2 d3 d9 d5 d13 d14 d15 d16 d17 d18 d19 d20 d21 p1.7 sar 8-bit adc vss d23 d24 d25 d29 d28 d27 d26 d22 d30 d31 d32 d33 d34 d35 d36 d37 d38 s12 s23 s22 s21 s20 s19 s18 s13 s15 s16 s17 s14 fifo 896 [ 12-bit sram (baseline) 896 [ 8-bit sram (cmod_buffer) 896 [ 12-bit sram (scan_buffer) + -
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 8 g1: green blank: tray tr: tape & reel ordering information ap389 - circuit type package temperature range part number marking id packing type qfn-7x7-56 -40 to 95c ap3890fn-g1 ap3890fn-g1 tray ap3890fntr-g1 ap3890fn-g1 tape & reel qfn-8x8-68 ap3891fn-g1 ap3891fn-g1 tray ap3891fntr-g1 ap3891fn-g1 tape & reel qfn-8x8-68 ap3892fn-g1 ap3892fn-g1 tray AP3892FNTR-G1 ap3892fn-g1 tape & reel bcd semiconductor's pb-free products, as designated wi th "g1" in the part number, are rohs compliant and green. package fn: qfn-77-56 /qfn-88-68 0: ap3890 1: ap3891 2: ap3892
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 9 ap389x support 7? to 13? touch panel, listed below: pn tx/ rx multi - touch package panel size ap3890 30/17 10 point 100hz qfn-7x7-56 7? to 10? ap3891 38/22 10 point 100hz qfn-8x8-68 8? to 13? ap3892 36/23 10 point 100hz qfn-8x8-68 8? to 13? absolute maximum ratings (note 1) parameter symbol value unit supply voltage 1 v dd 2.8 to 3.6 v supply voltage 2 v dd18 1.6 to 2.0 v analog input voltage (other pins) v dda -0.3 to v dd +0.3 v logic input voltage v ddd -0.3 to v dd +0.3 v power dissipation p d 250 mw maximum junction temperature t j 100 c operating temperature t op -40 to 95 c storage temperature t stg -65 to 150 c note 1: stresses greater than those listed under ?absolute maximum ratings? may cause permanent damage to the device. these are stress ratings only, and functional op eration of the device at these or any other conditions beyond those indicated under ?recommended operating co nditions? is not implied. exposure to ?absolute maximum ratings? for extended periods may affect device reliability.
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 10 electrical characteristics da/ac characteristics for afe t a =?40c to 95c, v dd =3.3v, i 2 c bus frequency=400khz, unless otherwise noted. parameter symbol test condition min typ max unit adc dc accuracy resolution 8 bits no missing codes standard/fast 6 8 bits integral linearity error inl standard/fast 2 lsb differential linearity error offset error gain error dnl external v ref 1 2 1 lsb lsb lsb analog input full-scale input span absolute input range 0 -0.2 v dd v dd +0.2 v v adc sampling dynamics throughput rate 500 ksps reference input input voltage range 1.8 v dd v switched-capacitor integrator output voltage range 0.3 v dd -0.3 v integrator capacitor c int 12 pf digital input/output logic family cmos input high voltage v ih 0.7v dd v dd +0.3 v input low voltage v il -0.3 0.3v dd v output high voltage v oh 0.8v dd v output low voltage v ol 0.4 v input high voltage for p3.6 (gpio18) v ih18 0.7v dd18 v dd18 +0.3 v input low voltage for p3.6 (gpio18) v il18 -0.3 0.3v dd18 v output high voltage for p3.6 (gpio18) v oh18 0.8v dd18 v output low voltage for p3.6 (gpio18) v ol18 0.2v dd18 v power supply supply voltage v dd operating voltage 2.8 3.6 v quiescent current standard mode: iosc=4mhz to 48mhz tbd ma power-down mode 10 ? a temperature range specified performance -40 95 c
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 11 electrical characteristics (continued) da/ac characteristics for afe t a =?40c to 95c, v dd =3.3v, i 2 c bus frequency=400khz, unless otherwise noted. parameter symbol test condition min typ max unit 3.3v-to-1.8v ldo internal 1.8v regulator output v dd18 , 15ma 1.6 1.8 2.0 v output voltage trimming level -2/4/6 0 2/4/6 % internal osc ? frequency 4 48 mhz operating current operating frequency=12mhz 50 ? a frequency trimming level -10/20/30 0 10/20/30 %
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 12 electrical characteristics (continued) da/ac characteristics for 8051 cpu core, digital gpio pins, digital peripherals, and iosc t a =?40c to 95c, v dd =2.8v to 3.6v, unless otherwise noted. parameter symbol mi n typ max unit note power supply current normal mode supply current using iosc up to 48mhz i dd , normal iosc1 25 ma 2 normal mode supply current using iosc=4mhz i dd , normal iosc2 2.9 ma 2 pmm mode supply current using iosc up to 48mhz i dd , pmm iosc1 6 ma 2 pmm mode supply current using iosc=4mhz i dd , pmm iosc2 1.5 ma 2 idle mode supply current using iosc up to 48mhz i dd , idle iosc1 3 ma 2 stop mode supply current using iosc keeps low i dd , stop 3 ? a 2 digital gpio characteristics input high voltage v ih 2 3.6 v 3 input low voltage v il -0.3 0.8 v 3 output high voltage v oh 2.4 v 3 output low voltage v ol 0.4 v 3 high level output current @v oh (min) i oh (2ma) 3.0 7.87 12.9 ma i oh (4ma) 7.7 15.6 25.8 ma low level output current @v ol (max) i ol (2ma) 3.4 5.4 7.4 ma i ol (4ma) 6.7 10.7 14.7 ma input pull up resistance r pu 34 74 k ?? 3 input pull down resistance r pd 29 86 k ? 3 input low to high level, rstn v ih , rstn 0.85 0.93 v 4 input high to low level, rstn v il , rstn 0.63 0.71 v 4 output rise time t rise 5 ns 7 output fall time t fall 5 ns 7 internal 3.3v-to-1.8v ldo from afe internal 1.8v regulator output v dd18 , 15ma 1.6 1.8 2.0 v 5 power on/off reset level v dd18 , reset 80 85 90 % 6 note 2: does not include load current and test ed under nop loop and all peripheral disabled. note 3: for digital i/o only. note 4: for rstn pin only. note 5: supply to internal digital and analog circuit only. note 6: this is measured as the pe rcentage of steady state value of v dd18 . note 7: this is measured with 20pf load and 20% to 80% output level.
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 13 typical application figure 5. typical application schematic of ap3890 (for qfn-77-56 package) figure 6. typical application schematic of ap3891 (for qfn-88-68 package) ap3890 ap3891
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 14 typical application (continued) figure 7. typical application schematic of ap3892 (for qfn-88-68 package) ap3892
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 15 mechanical dimensions qfn-77-56 unit: mm(inch)
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 16 mechanical dimensions (continued) qfn-88-68 unit: mm(inch) 7.900(0.311) 8.100(0.319) 7.900(0.311) 8.100(0.319) pin 1 mark 1 2 pin 1 options detail a 3 68 67 66 4 65 1 2 3 68 67 66 4 65 1 2 3 68 67 66 4 65 # 1 identification see detail a pin . symbol d e min(mm) max(mm) max(mm) min(mm) min(inch) min(inch) max(inch) max(inch) option1 option2 4.300 5.400 4.500 5.600 0.169 0.177 0.213 0.220 4.500 5.600 4.300 5.400 0.169 0.213 0.177 0.220 0.400(0.016) bsc 0.150(0.006) 0.250(0.010) n18 n1 d n68 0.300(0.012) 0.500(0.020) e n52 n35 0.700(0.028) 0.800(0.031) 0.000(0.000) 0.050(0.002) 0.203(0.008) ref . option3 6.100 6.300 0.240 0.248 6.300 6.100 0.240 0.248
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 17 mounting pad layout qfn-77-56 x y y2 e e x2 x1 y1 y3 x3 dimensions x=y (mm)/(inch) x1=y1 (mm)/(inch) x2=y2 (mm)/(inch) x3=y3 (mm)/(inch) e (mm)/(inch) value 7.400/0.291 5.400/0.213 0.250/0.010 0.700/0.028 0.400/0.016
data sheet enhanced multi-touch capacitive touch screen controller ap389x apr. 2013 rev. 1. 0 bcd semiconductor manuf acturing limited 18 mounting pad layout (continued) qfn-88-68 dimensions x=y (mm)/(inch) x1=y1 (mm)/(inch) x2=y2 (mm)/(inch) e (mm)/(inch) x3=y3 (mm)/(inch) option1 8.400/0.331 4.700/0.185 0.250/0.010 0.400/0.016 0.700/0.028 option2 8.400/0.331 5.800/0.228 0.250/0.010 0.400/0.016 0.700/0.028 option3 8.400/0.331 6.500/0.256 0.250/0.010 0.400/0.016 0.700/0.028
important notice bcd semiconductor manufacturing limited reserves the right to make changes without further not ice to any products or specifi- cations herein. bcd semiconductor manufacturing limited does not as sume any responsibility for us e of any its products for any particular purpose, nor does bcd semiconductor manufacturi ng limited assume any liability aris ing out of the application or use of any its products or circui ts. bcd semiconductor manufacturing limited does not convey any license under its patent rights or other rights nor the rights of others. - wafer fab shanghai sim-bcd semiconductor manufacturing co., ltd. 800 yishan road, shanghai 200233, china tel: +021-6485-1491, fa x: +86-021-5450-0008 main site regional sales office shenzhen office shanghai sim-bcd semiconductor manu facturing co., ltd., shenzhen office unit a room 1203,skyworth bldg., gaoxin ave.1.s., nanshan district shenzhen 518057, china tel: +86-0755-8660-4900, fax: +86-0755-8660-4958 taiwan office (taipei) bcd semiconductor (taiwan) company limited 3f, no.17, lane 171, sec. 2, jiu-zong rd., ne i-hu dist., taipei(114), taiwan, r.o.c tel: +886-2-2656 2808 fax: +886-2-2656-2806/26562950 taiwan office (hsinchu) bcd semiconductor (taiwan) company limited 8f, no.176, sec. 2, gong-dao 5th road, east district hsinchu city 300, taiwan, r.o.c tel: +886-3-5160181, fax: +886-3-5160181 - headquarters bcd (shanghai) micro-electronics limited no. 1600, zi xing road, shanghai zizhu scie nce-based industrial park, 200241, p. r.c. tel: +86-021-2416-2266, fax: +86-021-2416-2277 usa office bcd semiconductor corp. 48460 kato road, fremont, ca 94538, usa tel: +1-510-668-1950 fax: +1-510-668-1990 korea office bcd semiconductor limited korea office. room 101-1112, digital-empire ii, 486 sin-dong, yeongtong-gu, suwon-city, gyeonggi-do, korea tel: +82-31-695-8430 important notice bcd semiconductor manufacturing limited reserves the right to make changes without further not ice to any products or specifi- cations herein. bcd semiconductor manufacturing limited does not as sume any responsibility for us e of any its products for any particular purpose, nor does bcd semiconductor manufacturi ng limited assume any liability aris ing out of the application or use of any its products or circui ts. bcd semiconductor manufacturing limited does not convey any license under its patent rights or other rights nor the rights of others. - wafer fab shanghai sim-bcd semiconductor manufacturing limited 800, yi shan road, shanghai 200233, china tel: +86-21-6485 1491, fax: +86-21-5450 0008 bcd semiconductor manufacturing limited main site regional sales office shenzhen office shanghai sim-bcd semiconductor manuf acturing co., ltd. shenzhen office advanced analog circuits (shanghai) corporation shenzhen office room e, 5f, noble center, no.1006, 3rd fuzhong road, futian district, shenzhen 518026, china tel: +86-755-8826 7951 fax: +86-755-8826 7865 taiwan office bcd semiconductor (taiwan) company limited 4f, 298-1, rui guang road, nei-hu district, taipei, taiwan tel: +886-2-2656 2808 fax: +886-2-2656 2806 usa office bcd semiconductor corporation 30920 huntwood ave. hayward, ca 94544, u.s.a tel : +1-510-324-2988 fax: +1-510-324-2788 - ic design group advanced analog circuits (shanghai) corporation 8f, zone b, 900, yi shan road, shanghai 200233, china tel: +86-21-6495 9539, fax: +86-21-6485 9673 bcd semiconductor manufacturing limited http://www.bcdsemi.com bcd semiconductor manufacturing limited important notice bcd semiconductor manufacturing limited reserves the right to make changes without further not ice to any products or specifi- cations herein. bcd semiconductor manufacturing limited does not as sume any responsibility for us e of any its products for any particular purpose, nor does bcd semiconductor manufacturi ng limited assume any liability aris ing out of the application or use of any its products or circui ts. bcd semiconductor manufacturing limited does not convey any license under its patent rights or other rights nor the rights of others. - wafer fab shanghai sim-bcd semiconductor manufacturing co., ltd. 800 yi shan road, shanghai 200233, china tel: +86-21-6485 1491, fax: +86-21-5450 0008 main site regional sales office shenzhen office shanghai sim-bcd semiconductor manuf acturing co., ltd., shenzhen office unit a room 1203, skyworth bldg., gaoxin ave.1.s., nanshan district, shenzhen, china tel: +86-755-8826 7951 fax: +86-755-8826 7865 taiwan office bcd semiconductor (taiwan) company limited 4f, 298-1, rui guang road, nei-hu district, taipei, taiwan tel: +886-2-2656 2808 fax: +886-2-2656 2806 usa office bcd semiconductor corp. 30920 huntwood ave. hayward, ca 94544, usa tel : +1-510-324-2988 fax: +1-510-324-2788 - headquarters bcd semiconductor manufacturing limited no. 1600, zi xing road, shanghai zizhu sc ience-based industrial park, 200241, china tel: +86-21-24162266, fax: +86-21-24162277 important notice bcd semiconductor manufacturing limited reserves the right to make changes without further not ice to any products or specifi- cations herein. bcd semiconductor manufacturing limited does not as sume any responsibility for us e of any its products for any particular purpose, nor does bcd semiconductor manufacturi ng limited assume any liability aris ing out of the application or use of any its products or circui ts. bcd semiconductor manufacturing limited does not convey any license under its patent rights or other rights nor the rights of others. - wafer fab shanghai sim-bcd semiconductor manufacturing limited 800, yi shan road, shanghai 200233, china tel: +86-21-6485 1491, fax: +86-21-5450 0008 bcd semiconductor manufacturing limited main site regional sales office shenzhen office shanghai sim-bcd semiconductor manuf acturing co., ltd. shenzhen office advanced analog circuits (shanghai) corporation shenzhen office room e, 5f, noble center, no.1006, 3rd fuzhong road, futian district, shenzhen 518026, china tel: +86-755-8826 7951 fax: +86-755-8826 7865 taiwan office bcd semiconductor (taiwan) company limited 4f, 298-1, rui guang road, nei-hu district, taipei, taiwan tel: +886-2-2656 2808 fax: +886-2-2656 2806 usa office bcd semiconductor corporation 30920 huntwood ave. hayward, ca 94544, u.s.a tel : +1-510-324-2988 fax: +1-510-324-2788 - ic design group advanced analog circuits (shanghai) corporation 8f, zone b, 900, yi shan road, shanghai 200233, china tel: +86-21-6495 9539, fax: +86-21-6485 9673 bcd semiconductor manufacturing limited http://www.bcdsemi.com bcd semiconductor manufacturing limited

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