|
If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
Datasheet File OCR Text: |
PAC7312 PAC7312 VGA PC Camera Single-Chip with Audio General Description The PAC7312 is a single chip with an embedded VGA CMOS image sensor and USB 1.1 interface. It has JPEG image compression and image processing. The generic application is a PC camera. JPEG decoder and auto exposure are performed by software in PC side. And the optical size is 1/4" which can easily be embedded in LCD monitors, notebooks or PDA. It also provides high quality audio sampling function for sound recording. The audio function complies with USB audio device class 1.0. There are 4 IO-trapping pins with internal pull-low resistors. It is flexible for customers to set PID. It supports the interface to a serial-EEPROM. When the EEPROM function is enabled, the internal control registers can be power-up loaded from external EEPROM. This allows customization of VID, PID, product string. Features VGA resolution, ~1/4"Lens Frame rate up to 30fps at following resolution format VGA format (640x480) with JPEG compression CIF format (352x288) with JPEG compression QVGA format (320x240) with JPEG compression QCIF format (176x144) without compression QQVGA format (160x120) without compression RGB Bayer's pattern raw data Up to 3fps @VGA format (640x480) Up to 12fps @CIF format (352x288) Up to 12fps @QVGA format (320x240) Up to 30fps @QCIF format (176x144) Up to 30fps @QQVGA format (160x120) Standard JPEG compression engine comply to ISO/IEC 10918-1(JPEG) AEC/AGC/AWB automatic 4 IO-trapping pins to set USB PID Support USB suspend mode Support video data transfer through USB isochronous transfer Snapshot control through USB interrupt pipe USB Vendor ID, Product ID, device release number and the string descriptor index via a serial EEPROM (93C46) or by metal mask Complete Universal Serial Bus(R) spec V1.1 compatibility Built in 8bits mono audio ADC for audio recording through microphone, 16KHZ sampling rate, 8/16bits PCM format USB audio device class 1.0 compatibility Key Specification Supply Voltage Resolution Array Diagonal Optical format Pixel Size Frame Rate System Clock Color Filter Scan mode Sensitivity PGA gain S/N ratio Power consumption Package 5.0V 10% 640 (H) x 480 (V) 4.48mm 1/4" 5.6um x 5.6um Up to 30fps 12MHz RGB Bayer Pattern Progressive 3.06 V/lux*sec 23.52dB (Max.) >45dB 65mA 48-pin PLCC / 37-pin CSP Ordering Information Order number PAC7312PE PAC7312CS Package Type 48-pin PLCC 37-pin CSP Package Size(mm) 11.43 x 11.43 5.06 x 5.55 All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 1 PixArt Imaging Inc. E-mail: fae_service@PixArt.com.tw V1.5 Oct. 2005 PixArt Imaging Inc. PAC7312 VGA PC Camera Single-Chip with Audio 1. Pin Assignment 1.1 PLCC Package Pin# 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 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Name NC MIC NC VRB VCM NC NC VRT VDDA VDDAY EPR_DO VSSQ VDDQ EPR_CS/TR2 EPR_CK/TR3 EPR_DI/TR1 VSSAY NC NC GPO/TR0 LED NC TEST2 EPR_EN IOTRAP# KEY# NC VSSQ VDDD PWR_5V NC VDDQ GPIO TEST1 NC RESET# VSSQ XOUT XIN DP DN NC VDDQ VDDP VDDAD VDDAV VSSA PWR_5V Type IN BYPASS BYPASS BYPASS BYPASS BYPASS IN GND BYPASS OUT OUT OUT GND OUT OUT IN IN IN IN GND BYPASS PWR BYPASS IO IN IN GND OUT IN I/O I/O BYPASS BYPASS BYPASS BYPASS GND PWR Description No Connection Microphone input No Connection Analog voltage reference Analog voltage reference No Connection No Connection Analog voltage reference Analog power for AD/DA/PGA, 2.5V Sensor reset power reference Data output of EEPROM Ground for I/O and PHY Power for I/O and PHY Chip Select of EEPROM; (IO trap pin for PID2, internal pull-down 100Kohm) Serial clock of EEPROM; (IO trap pin for PID3, internal pull-down 100Kohm) Data input of EEPROM; (IO trap pin for PID1, internal pull-down 100Kohm) Sensor ground No Connection No Connection General purpose output; (IO trap pin for PID0, internal pull-down 100Kohm) LED driver No Connection Test pin, internal pull-up 100Kohm Enable signal of EEPROM (1: enable, 0: disable), internal pull-down 100Kohm I/O trap enable signal (0: enable, 1: disable, internal pull-down 100Kohm) Snapshot control signal (Active Low, internal pull-up 100Kohm) No Connection Ground for I/O and PHY Logic power for mixed-mode circuit, 2.5V Main power, USB bus power No Connection Power for I/O and PHY, 3.3V General purpose input/output, internal pull-down 100Kohm Test pin. Connect to GND in normal operation mode No Connection Chip power up reset Ground for I/O and PHY Crystal output Crystal input DP for USB1.1 PHY DN for USB1.1 PHY No Connection Power for I/O and PHY Analog power for PLL Analog voltage reference power for core logic, 2.5V Analog voltage reference Analog ground Main power, USB bus power 2 All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: fae_service@PixArt.com.tw V1.5 Oct. 2005 PixArt Imaging Inc. PAC7312 VGA PC Camera Single-Chip with Audio 1.2 CSP Package Pin# 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 29 30 31 32 33 34 35 36 37 Name MIC VRB VCM VRT VDDA VDDAY EPR_DO VSSQ VDDQ EPR_CS/TR2 EPR_CK/TR3 EPR_DI/TR1 VSSAY GPI/TR0 LED EPR_EN IOTRAP# KEY# NC VSSQ VDDD PWR_5V VDDQ GPIO TEST1 RESET# VSSQ XOUT XIN DP DN VDDQ VDDP VDDAD VDDAV VSSA PWR_5V Type IN BYPASS BYPASS BYPASS BYPASS BYPASS IN GND BYPASS OUT OUT OUT GND OUT OUT IN IN IN GND BYPASS PWR BYPASS IO IN IN GND OUT IN I/O I/O BYPASS BYPASS BYPASS BYPASS GND PWR Description Microphone input Analog voltage reference Analog voltage reference Analog voltage reference Analog power for AD/DA/PGA, 2.5V Sensor reset power reference Data output of EEPROM Ground for I/O and PHY Power for I/O and PHY Chip Select of EEPROM; (IO trap pin for PID2, internal pull-down 100Kohm) Serial clock of EEPROM; (IO trap pin for PID3, internal pull-down 100Kohm) Data input of EEPROM; (IO trap pin for PID1, internal pull-down 100Kohm) Sensor ground General purpose output; (IO trap pin for PID0, internal pull-down 100Kohm) LED driver Enable signal of EEPROM (1: enable, 0: disable), internal pull-down 100Kohm I/O trap enable signal (0: enable, 1: disable, internal pull-down 100Kohm) Snapshot control signal (Active Low, internal pull-up 100Kohm) No Connection Ground for I/O and PHY Logic power for mixed-mode circuit, 2.5V Main power, USB bus power Power for I/O and PHY General purpose input/output, internal pull-down 100Kohm Test pin. Connect to GND in normal operation mode Chip power up reset Ground for I/O and PHY Crystal output Crystal input DP for USB1.1 PHY DN for USB1.1 PHY Power for I/O and PHY, 3.3V Analog power for PLL Analog voltage reference power for core logic, 2.5V Analog voltage reference Analog ground Main power, USB bus power All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 3 PixArt Imaging Inc. E-mail: fae_service@PixArt.com.tw V1.5 Oct. 2005 PixArt Imaging Inc. PAC7312 VGA PC Camera Single-Chip with Audio 2. Block Diagram Audio Analog Circuits Audio Control Interface VGA Sensor Image Processing Engine JPEG Compression Engine Rate Control USB Controller PLL ASIC Register Bank Sensor Register Bank Regulator EEPROM Controller PAC7312 is a single-chip USB camera. It includes a VGA sensor based on PixArt VGA sensor with enhanced image quality and sensitivity, a 48MHz PLL, internal regulators, JPEG image compression, image processing schemed, control registers, on-chip SRAM for image data buffer and USB controller. All register parameters are set by USB interface. And the JPEG compressed image data is transmitted by USB 1.1 isochronous pipe. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 4 PixArt Imaging Inc. E-mail: fae_service@PixArt.com.tw V1.5 Oct. 2005 PixArt Imaging Inc. PAC7312 3. Function Description VGA PC Camera Single-Chip with Audio 3.1 Analog Data Path The PixArt VGA sensor is a 1/4inch CMOS imaging sensor with 644x488 physical pixels. The active region of sensor array is 644x484. The sensor array is cover with Bayer pattern color filters and micro lens. After a programmable exposure time, the image is sampled first with CDS (Correlated Double Sampling) block to improve S/N ration and reduce fixed pattern noise. Three analog gain stages are implemented before signal transferred by the 10bit ADC. The front gain stage (FG) can be programmed to fit the saturation level of sensor to the full-range input of ADC. The programmable color gain stage (CG) is used to balance the luminance response difference between B/G/R. The global gain stage (GG) is programmed to adapt the gain to the image luminance. The fine gained signal will be digitized by the on-chip 10bit ADC. After the image data has been digitized, further alteration to the signal can be applied before the data is output. The gain stage can be set by digital register, please refer to the following equation to get the mapping gain. Front Gain = 2 + (n/4), n = 0, 1, 2, ...7 Color Gain = 1 + (m/16), m= 0, 1, 2, ...15 Global Gain = 1 + (q/16), q = 0, 1, 2, ...15 All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 5 PixArt Imaging Inc. E-mail: fae_service@PixArt.com.tw V1.5 Oct. 2005 PixArt Imaging Inc. PAC7312 VGA PC Camera Single-Chip with Audio 4. Specifications Absolute Maximum Ratings Exposure to absolute maximum rating may affect device reliability. Symbol VDD VIN VOUT TSTG Parameter DC supply voltage DC input voltage DC output voltage Storage temperature Min -0.5 0.5 -0.5 0 Max 5.5 3.8 3.8 70 Unit V V V Notes Recommend Operating Condition Symbol TA VDD FCLK Parameter Operating Temperature Power supply voltage System clock frequency Min 0 4.25 Typ. 5.0 12 Max 40 5.5 Unit C V MHz Notes DC Electrical Characteristics (Typical values at 25C, VDD =5.0 V) Symbol Type: PWR IDD Operating Current 65 mA @30 frame/sec Parameter Min. Typ. Max. Unit Notes Type: IN & I/O, Reset VIH VIL CIN ILKG Input voltage HIGH Input voltage LOW Input capacitor Input leakage current 2.0 0 VDDQ 0.8 10 1.0 V V pF uA Type: OUT & I/O VOH VOL Output voltage HIGH Output voltage LOW VDDQ-0.2 0.2 V V CL= 10pf, RL=1.2k CL= 10pf, RL=1.2k Sensor Characteristics (Light source: 3200K halogen lamp; 8bit resolutions) Symbol PRNU VSAT VDARK DSNU R G B Parameter Photo response non-uniformity Saturation output voltage Dark output voltage Dark signal non-uniformity Sensitivity (Red channel) Sensitivity (Green channel) Sensitivity (Blue channel) Min. Typ. 1.3 0.832 0.055 0.001 4.590 3.060 2.448 Max. Unit % V V/sec V V/Lux*sec V/Lux*sec V/Lux*sec Notes All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 6 PixArt Imaging Inc. E-mail: fae_service@PixArt.com.tw V1.5 Oct. 2005 PixArt Imaging Inc. PAC7312 VGA PC Camera Single-Chip with Audio 5. Package Information 5.1 PLCC Pin Assignment and Optical Center Information Note: Sensor Array Center = Package Center --TOP VIEW-- All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 7 PixArt Imaging Inc. E-mail: fae_service@PixArt.com.tw V1.5 Oct. 2005 PixArt Imaging Inc. PAC7312 VGA PC Camera Single-Chip with Audio 5.2 PLCC Package Outline Dimension 18 7 19 6 1 48 30 43 31 42 -- TOP VIEW -- All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 8 PixArt Imaging Inc. E-mail: fae_service@PixArt.com.tw V1.5 Oct. 2005 PixArt Imaging Inc. PAC7312 VGA PC Camera Single-Chip with Audio 5.3 CSP Pin Assignment Pad Extension Formation EPR_CS/TR2 Leads & BGA Formation EPR_CS/TR2 EPR_CK/TR3 EPR_CK/TR3 EPR_DI/TR1 EPR_DI/TR1 EPR_DO VDDAY EPR_DO VSSAY VDDAY GPO/TR0 LED VCM VRB VSSAY VDDQ VDDA VSSQ VDDQ VDDA VSSQ VRT VRT VCM VRB GPO/TR0 LED MIC EPR_EN IOTRAP# KEY# NC VSSQ VDDD PWR_5V MIC EPR_EN Sensor Area PWR_5V VSSA VDDAV VDDAD VDDP VDDQ PWR_5V VSSA VDDAV VDDAD VDDP VDDQ IOTRAP# NNN NNN KEY# NC VSSQ VDDD PWR_5V TEST1 RESET# VDDQ GPIO VSSQ XIN XOUT DN DP RESET# XIN TEST1 DN GPIO Top view (Bumps down) Step Size5061 x 5551 um Die Size4841 x 5331 um Ball Pitch650 um Ball Diameter300 um Scribe Line360 um Buttom view (Bumps up) Package Size4966 x 5456 um Marking CodeNNNNNN - Datecode 5.4 Recommend PCB Layout VDDQ XOUT VSSQ DP All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 9 PixArt Imaging Inc. E-mail: fae_service@PixArt.com.tw V1.5 Oct. 2005 PixArt Imaging Inc. PAC7312 VGA PC Camera Single-Chip with Audio 5.5 CSP Package Dimensions and Ball Matrix Table 1 2 3 4 5 6 A VSSAY(PIN 13) EPR_DI/TR(PIN 12) EPR _CS/TR2(PIN 10) VSSQ(PIN 8) VDDAY(PIN 6) VRT(PIN 4) B LED(PIN 15) GPO/TR0(PIN 14) VDDQ(PIN 9) EPR _D0(PIN 7) VCM(PIN 3) VRB(PIN 2) C VSSQ/EPR_EN(PIN 16) EPR _CK/TR3(PIN 11) VDDA(PIN 5) MIC(PIN 1) PWR_5V(PIN 37) D IOTRAP# (PIN 17) KEY# (PIN 18) VDDAV(PIN 35) VSSA(PIN 36) E NC(PIN 19) VSSQ(PIN 20) VDDP(PIN 33) VDDAD(PIN 34) F VDDD(PIN 21) PWR_5V(PIN 22) RESET# (PIN 26) XOUT(PIN 28) DP(PIN 30) VDDQ(PIN 32) G VDDQ(PIN 23) GPIO(PIN 24) TEST1(PIN 25) VSSQ(PIN 27) XIN(PIN 29) DN(PIN 31) A E 1 2 3 4 5 6 S1 6 J1 5 4 3 2 1 F A B C D E F G 886.095 S2 A J2 B C D E F G B 158.28 NNN NNN Center of sensor Center of BGA= Center of package C3 Top view (Bumps down) Bottom view (Bumps up) Marking CodeNNNNNN - Datecode C C2 C1 Side view Symbol Package Body Dimension X Package Body Dimension Y Package Height Ball Height Package Body Thickness Thickness of Glass surface to wafer Ball Diameter Total Pin Count Pin Count X axis Pin Count Y axis Pins Pitch X axis Pins Pitch Y axis Edge to Pin Center Distance analog X Edge to Pin Center Distance analog Y Edge to Optical Center Distance analog X Edge to Optical Center Distance analog Y A B C C1 C2 C3 D N N1 N2 J1 J2 S1 S2 E F Nominal 4966 5456 800 160 640 415 300 37 6 7 650 650 858 778 2325 1842 Min. m 4941 5431 740 130 605 395 270 Max. 4991 5481 860 190 675 435 330 828 748 2300 1817 888 808 2350 1867 All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 10 PixArt Imaging Inc. E-mail: fae_service@PixArt.com.tw V1.5 Oct. 2005 PixArt Imaging Inc. PAC7312 VGA PC Camera Single-Chip with Audio 6. Reference Application Circuit 6.1 PLCC Package (PAC7312PE) VSSAY EPR_CK/TR3 EPR_CS/TR2 EPR_DI/TR1 VSSQ VDDQ R1 VDDAY VDDQ R2 VDDA VRT R3 10k 10k 10k EPR_CK/TR3 EPR_CS/TR2 EPR_DI/TR1 10k LED LED C1 1uF 18 17 16 15 14 13 12 11 10 9 8 7 U1 R4 R5 1K D1 VSSQ EPR_DO VSSAY VDDQ VDDAY EPR_CK/TR3 EPR_CS/TR2 EPR_DI/TR1 VDDA NC 19 GPO/TR0 20 LED 21 22 23 24 25 KEY 26 27 VSSQ VDDD VDD5V 28 29 30 VRT NC NC GPO/TR0 LED NC TEST2 EPR_EN IOTRAP# KEY # NC VSSQ VDDD NC VCM VRB NC MIC 6 5 4 3 2 1 48 47 46 45 44 43 VDDAV VDDAD VDDP VDDQ VDD5V VSSA MIC VCM VRB KEY R6 51k RST# S1 C2 C3 1uF 1uF KEY VDDD VDDP XOUT R7 1M XIN PAC7312PE NC PWR_5V VSSA VDDAV VDDAD VDDP C4 X1 12MHz C5 47pF 47pF VSSQ RESET# TEST1 PWR_5V VDDQ GPIO NC VDDQ XOUT VSSQ XIN DN NC DP VDDA VDDAV VDDAD VRT VRB VCM C6 C7 C8 C9 C11 C12 1uF 1uF 1uF 1uF 1uF 1uF 31 32 33 34 35 NC 36 37 38 39 40 41 DN XOUT RST# XIN DP 42 C10 1uF VDDQ VSSQ VSSQ VDD5V R8 2k C14 + 10uF R9 1K C13 1uF MIC VDDAY C15 L1 3.3uH 0.1uF VSSA R10 22K R11 4.7K + C16 100pF VSSAY VSSA Q1 2N3904 4.7uF R12 4.7K R13 1K 22K C21 4.7uF + R16 27K C18 + 22uF R18 47 C19 0.001uF VSSQ VDD5V + X2 MICROPHONE C17 L2 Open/3.3uH VSSA C20 + 10uF Q2 2N3904 R14 100k R17 10k C23 C24 C25 + VSSA VDDQ R19 DP DN R20 27 ohm L3 Short / 3.3uH 1.5K VSSQ + R21 27 ohm L4 Short / 3.3uH C31 20pF C32 20pF VDD5V HC1 HC2 5 4 3 2 1 GND2 NC + +5V HC4 HC3 9 8 C27 C28 C29 C34 + + C33 0.1uF C30 + 10uF R22 10M 6 7 VSSQ C35 4.7nF USBGND C36 + All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: fae_service@PixArt.com.tw - GPO/TR0 R15 VSSAY C22 10uF 0.1uF 10uF 0.1uF 10uF 0.1uF 10uF 0.1uF 10uF 0.1uF VSSQ CON1 MINI USB 5P VDDQ C26 11 V1.5 Oct. 2005 PixArt Imaging Inc. PAC7312 VGA PC Camera Single-Chip with Audio 6.2 CSP Package (PAC7312CS) VDDQ VDDQ VSSAY EPR_DI/TR1 EPR_CK/TR3 EPR_CS/TR2 VSSQ R1 R2 R3 10k 10k 10k EPR_CK/TR3 EPR_CS/TR2 EPR_DI/TR1 10k LED D1 R6 51k U1 KEY 3 2 1 37 36 35 34 33 32 VCM VRB MIC VDDAV VDDAD VDDP VDD5V VSSA VDDD VDDP XOUT VDDQ R7 1M XIN S1 C2 C3 1uF 1uF C4 X1 12MHz C5 47pF VSSQ 47pF KEY RST# LED C1 1uF VSSQ VDD5V GPO/TR0 14 LED 15 16 17 KEY 18 19 20 VDDD 21 22 VSSAY EPR_DI/TR1 EPR_SK/TR3 EPR_CS/TR2 VDDQ VSSQ EPR_DO VDDAY VDDA VRT 13 12 11 10 9 8 7 6 5 4 VDDAY VDDA VRT R4 R5 1K GPO/TR0 LED EPR_EN IOTRAP# KEY # NC VSSQ VDDD PWR_5V PAC7312CS VDDQ GPIO TEST1 RESET# VSSQ XOUT XIN DP DN VCM VRB MIC PWR_5V VSSA VDDAV VDDAD VDDP VDDQ 23 24 25 RST# 26 27 XOUT 28 XIN 29 DP 30 DN 31 VDDA VDDAV VDDAD C6 C7 C8 C9 C11 C12 1uF 1uF 1uF 1uF 1uF 1uF VDDQ VSSQ VRT VRB MIC VCM C16 100pF VDDAY Q1 2N3904 4.7uF R12 4.7K R13 1K 22K C21 4.7uF + R16 27K C18 + 22uF R18 47 C19 0.001uF VSSQ VDD5V C22 C23 C24 C25 CON1 MINI USB 5P VSSQ 5 4 3 2 1 GND2 NC + +5V VDDQ 9 8 C26 C27 C28 C29 C34 C35 4.7nF C36 10uF 0.1uF 10uF 0.1uF 10uF 0.1uF VSSQ + 10uF 0.1uF 10uF 0.1uF + L2 Open/3.3uH L1 C15 3.3uH 0.1uF VSSA C10 1uF VDD5V R8 2k C14 + 10uF R9 1K C13 1uF R10 22K R11 4.7K + C20 + 10uF Q2 2N3904 VSSA DP DN R20 27 ohm L3 R21 27 ohm L4 - VSSA + X2 MICROPHONE C17 VSSAY GPO/TR0 R14 100k R17 10k R15 VSSA VSSAY VDDQ R19 Short / 3.3uH 1.5K Short / 3.3uH C31 20pF C32 20pF VDD5V HC1 HC2 HC4 HC3 C33 0.1uF C30 + 10uF R22 10M 6 7 VSSQ USBGND + + + All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 12 PixArt Imaging Inc. E-mail: fae_service@PixArt.com.tw V1.5 Oct. 2005 PixArt Imaging Inc. PAC7312 VGA PC Camera Single-Chip with Audio 7. Update History Version V1.0 V1.1 V1.2 V1.3 V1.4 Update Creation, Preliminary 1st version 4. Specifications 5. Package information 4. Specifications 5. Package information 4. Specifications 5. Package information 6. Reference Application Circuit 5. Package information 6. Reference Application Circuit General Description 5. Package information 6. Reference Application Circuit (Change list: C4, C5, C13, C14, C17, C19, C20, C21, R8, R9, R10, R11, R12, R15, R18, L2) Date 10/27/2004 10/29/2004 11/04/2004 06/28/2005 07/01/2005 V1.5 10/07/2005 All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 13 PixArt Imaging Inc. E-mail: fae_service@PixArt.com.tw V1.5 Oct. 2005 |
Price & Availability of PAC7312 |
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
[Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |