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22

Coyote (BL2500)

3.3.2  Digital Outputs

The Coyote has eight digital outputs, OUT0–OUT7, each of which can sink up to 200 mA. 
Figure 12 shows a wiring diagram for using the digital outputs in a sinking configuration.

Figure 12.  Coyote Digital Outputs

+K is an externally supplied voltage of 3.3–40 V DC, and should be capable of delivering 
all the load currents. Although a connection to a +K supply is not absolutely 

required

 with 

sinking outputs, it is 

highly recommended

 to protect against current spikes when driving 

inductive loads such as relays and solenoids.

Connect the poK supply to pin 1 of friction-lock connector terminal J10 and the 
negative side of the supply to pin 2 of friction-lock connector terminal J10. A friction-lock 
connector is recommended to connect this supply because the +K inputs are 

not

 protected 

against reverse polarity, and serious damage to the Coyote may result if you connect this 
supply backwards.

+K

SINKING OUTPUTS

Current

Flow

Содержание Coyote BL2500

Страница 1: ...Coyote BL2500 C Programmable Single Board Computer with Ethernet User s Manual 019 0120_M...

Страница 2: ...d Digi International reserves the right to make changes and improvements to its products without providing notice Trademarks Rabbit and Dynamic C are registered trademarks of Digi International Inc Ra...

Страница 3: ...3 2 4 Starting Dynamic C 14 2 5 PONG C 15 2 6 Where Do I Go From Here 15 2 7 Using the Coyote In High Vibration Environments 16 Chapter 3 Subsystems 17 3 1 Coyote Pinouts 18 3 1 1 Headers 19 3 2 Indic...

Страница 4: ...5 1 TCP IP Connections 59 5 2 TCP IP Sample Programs 61 5 2 1 How to Set IP Addresses in the Sample Programs 61 5 2 2 How to Set Up your Computer s IP Address for a Direct Connection 62 5 2 3 Run the...

Страница 5: ...85 D 1 General RabbitNet Description 85 D 1 1 RabbitNet Connections 85 D 1 2 RabbitNet Peripheral Cards 86 D 2 Physical Implementation 87 D 2 1 Control and Routing 87 D 3 Function Calls 88 D 3 1 Stat...

Страница 6: ...Coyote BL2500...

Страница 7: ...ified configurations Pin compatible RabbitCore modules allow multiple configurations of the Coyote with Ethernet and memory options 1 1 Features Rabbit 3000 microprocessor operating at 29 4 MHz option...

Страница 8: ...liminated fewer digital inputs only 16 digital I O with 8 protected and filtered digital inputs and 8 digital outputs sinking up to 200 mA at up to 36 V DC no header J12 no backup battery no RabbitNet...

Страница 9: ...used to power the BL2500 An AC adapter is supplied with develop ment kits sold in the North American market If you are using your own power supply it must provide 8 to 40 V DC Demonstration Board with...

Страница 10: ...at www rabbit com for further information and complete documentation or contact your Rabbit sales representative or authorized distributor 1 2 3 Connectivity Tools Rabbit also has available additiona...

Страница 11: ...7 8 R 8 1 R 8 0 JC U 8 GN D C3 0 R5 0 R5 1 R5 2 R3 1 R4 0 R4 1 R1 7 C1 8 C 16 R2 8 R8 2 R2 6 C1 5 C1 4 C1 3 R2 4 R2 5 U 6 C 28 C 27 R5 6 R7 7 C 35 C 36 C 34 C33 U 9 U 1 0 R 76 U 5 D S1 D S2 D S3 D S4...

Страница 12: ...ch can support one peripheral card Distances between a master processor unit and peripheral cards can be up to 10 m or 33 ft The following low cost peripheral cards are currently available Digital I O...

Страница 13: ...the BL2500 that do not have the CE mark are not CE compliant Immunity The BL2500 series of single board computers meets the following EN55024 1998 immu nity standards EN61000 4 3 Radiated Immunity EN...

Страница 14: ...00 it is the responsibility of the end user to use proper ESD precautions to prevent ESD damage to the BL2500 Safety All inputs and outputs to and from the BL2500 series of single board computers must...

Страница 15: ...gainst scratches or short circuits while you are working with the BL2500 G N D J4 J5 GND J6 JA R2 U1 R5 R8 C3 C4 R11 R14 R16 R3 R1 R15 R 13 R12 R9 R10 C 5 R 6 R 7 R4 C2 J1 C1 D1 J2 J7 J8 C8 D3 J10 J 1...

Страница 16: ...8 D3 J10 J11 J12 GND RS485 TERMINATION RESISTORS R21 R20 R19 R79 C12 R78 R81 R80 JC U8 GND C30 R50 R51 R52 R31 R40 R41 R17 C18 C16 R28 R82 R26 C15 C14 C13 R24 R25 U6 C28 C27 R56 R77 C35 C36 C34 C33 U9...

Страница 17: ...C16 R28 R82 R26 C15 C14 C13 R24 R25 U6 C28 C27 R56 R77 C35 C36 C34 C33 U9 U10 R76 U5 DS1 DS2 DS3 DS4 R27 R71 R70 R66 R67 R58 R55 R49 R48 R47 R46 R43 R42 R44 R45 R35 R34 R33 R32 C21 C20 C19 D9 R29 R30...

Страница 18: ...ons to the headers This will protect your BL2500 from inadvertent shorts or power spikes 2 2 1 Hardware Reset A hardware reset is done by unplugging the AC adapter then plugging it back in or by short...

Страница 19: ...entation is installed along with Dynamic C and an icon for the docu mentation menu is placed on the workstation s desktop Double click this icon to reach the menu If the icon is missing create a new d...

Страница 20: ...hin Dynamic C From the Options menu select Communications Select another COM port from the list then click OK Press Ctrl Y to force Dynamic C to recompile the BIOS If Dynamic C still reports it is una...

Страница 21: ...NOTE If you purchased your BL2500 through a distributor or Rabbit partner contact the distributor or partner first for technical support If there are any problems at this point Use the Dynamic C Help...

Страница 22: ...1 R59 R63 R64 R68 R74 C32 J 9 R75 R73 R72 R69 R65 R62 R60 R57 R53 Q5 Q1 D6D4 Q2 Q4 D7 Q3 Q6 Q7 D8 D5 U 2 C 1 1 C 7 D2 U3 TVS1 L1 C6 JB RCM1 U 4 J 3 R 3 9 R 3 8 R 3 7 R 3 6 C 1 7 C 2 6 C 2 4 C 2 2 C 2...

Страница 23: ...RabbitCore modules take care not to swap the RabbitCore modules since they contain system ID block information and cali bration constants that are unique to the board they were originally installed on...

Страница 24: ...19 R15 R17 R22 R27 C14 R9 RP2 C46 C47 R46 R47 RP1 C1 R1 OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 K Digital Outputs Digital Inputs Power Supply K RS 485 Analog Input Analog Ground Analog Outputs J7 J3 J...

Страница 25: ...n 0 156 friction lock connector terminals at J7 and J8 are installed to supply power DCIN and 5 V to the peripheral cards currently being developed for use with the RabbitNet Two 2 pin 0 156 friction...

Страница 26: ...ore module has two LEDs next to the RJ 45 Ethernet jack one to indicate an Ethernet link LNK and one to indicate Ethernet activity ACT User programmable LEDs driven by the Rabbit 3000 DS1 PB6 yellow D...

Страница 27: ...pacitor Figure 10 Coyote Digital Inputs Pulled Up Factory Default Coyote series boards can be made to order in volume with the digital inputs pulled up to K or pulled down to 0 V Contact your authoriz...

Страница 28: ...a K supply is not absolutely required with sinking outputs it is highly recommended to protect against current spikes when driving inductive loads such as relays and solenoids Connect the positive K s...

Страница 29: ...ately 8 bits Since the D A converter is able to change the DA0 out put in 3 22 mV steps there are 930 steps over the range from 0 1 V to 3 1 V This repre sents a resolution of more than 9 bits For exa...

Страница 30: ...0 ms with a 29 4 MHz Coyote 3 4 2 D A Converters Two D A converter outputs DA0 and DA1 are supplied on the Coyote These are shown in Figure 14 Figure 14 Schematic Diagram of D A Converters The D A con...

Страница 31: ...ion of the DA0 or DA1 output depends on the smallest increment of time to change the on off time the time between 3 3 V and 0 V The Coyote uses the Rabbit 3000 s Port F control registers to clock out...

Страница 32: ...om the D A converter and RC is the time constant 2 5 ms The settling will be within 99 326 or within about 22 mV for a 3 3 V change in voltage after five time constants or 12 5 ms Six time constants 1...

Страница 33: ...S 422 SPI ports can also be oper ated in the clocked serial mode In this mode a clock line synchronously clocks the data in or out Either of the two communicating devices can supply the clock for the...

Страница 34: ...232 port is initiated in software using the serXflowcontrolOn function call from RS232 LIB where X is the serial port E or F The locations of the flow control lines are specified using a set of five m...

Страница 35: ...erDclose define ser485wrFlush serDwrFlush define ser485rdFlush serDrdFlush define ser485putc serDputc define ser485getc serDgetc define DINBUFSIZE 15 define DOUTBUFSIZE 15 ifndef _485BAUD define _485B...

Страница 36: ...R52 R31 R40 R41 R17 C18 C16 R28 R82 R26 C15 C14 C13 R24 R25 U6 C28 C27 R56 R77 C35 C36 C34 C33 U9 U10 R76 U5 DS1 DS2 DS3 DS4 R27 R71 R70 R66 R67 R58 R55 R49 R48 R47 R46 R43 R42 R44 R45 R35 R34 R33 R32...

Страница 37: ...AG connector on the programming cable In addition to Serial Port A the Rabbit 3000 startup mode SMODE0 SMODE1 status and reset pins are available on the programming port The two startup mode pins dete...

Страница 38: ...ck one to indicate an Ethernet link LNK and one to indicate Ethernet activity ACT The transformer connector assembly ground is connected to the RabbitCore module printed circuit board digital ground v...

Страница 39: ...20 C19 D9 R29 R30 C29 D10 R54 R61 R59 R63 R64 R68 R74 C32 J9 R75 R73 R72 R69 R65 R62 R60 R57 R53 Q5 Q1 D6D4 Q2 Q4 D7 Q3 Q6 Q7 D8 D5 U2 C11 C7 D2 U3 TVS1 L1 C6 JB RCM1 U4 J3 R39 R38 R37 R36 C17C26 C24...

Страница 40: ...sor s internal clock doubler will reduce power consumption and further reduce radiated emissions The clock doubler is disabled with a simple config uration macro as shown below NOTE Disabling the cloc...

Страница 41: ...ect the Defines tab from the Dynamic C Options Project Options menu 2 Normal spreading is the default and usually no entry is needed If you need to specify normal spreading add the line ENABLE_SPREADE...

Страница 42: ...iscouraged Instead use a portion of the user block area to store persistent data The functions writeUserBlock and readUserBlock are provided for this Refer to the Rabbit 3000 Microprocessor Designer s...

Страница 43: ...e disadvantage is that the code and data might not both fit in RAM NOTE An application can be developed in RAM but cannot run standalone from RAM after the programming cable is disconnected Standalone...

Страница 44: ...Standard debugging features Breakpoints Set breakpoints that can disable interrupts Single stepping Step into or over functions at a source or machine code level C OS II aware Code disassembly The dis...

Страница 45: ...IOS or libraries in the new directory containing the patch Do not simply copy over an entire file since you may overwrite a bug fix Once you are sure the new patch works entirely to your satisfaction...

Страница 46: ...d sample programs to your existing Dynamic C installation 1 Double click on the file name of the self extracting ZIP file 2 The extracting program will prompt you for a folder in which to place the fi...

Страница 47: ...ASHLEDS C Uses cofunctions and costatements to flash LEDs on the Coyote at different intervals TOGGLESWITCH C Uses costatements to detect switches presses on the Demonstra tion Board with press and re...

Страница 48: ...equiva lent value to the STDIO window ADCCALIB C This program demonstrates how to recalibrate one single ended A D converter channel using two known voltages to generate constants that are then rewri...

Страница 49: ...ransmitting the file using a serial port with a PC serial utility such as Tera Term NOTE Use the sample program DNLOADCALIB C to retrieve the data and rewrite it to the single board computer DNLOADCAL...

Страница 50: ...lications for the Coyote BL2500 libraries associated with features specific to the Coyote The functions in the BL25xx LIB library are described in Section 4 4 Coyote Function Calls RN_CFG_BL25 LIB use...

Страница 51: ...initialized according to Table A 3 Summary of initialization 1 RS 485 is not initialized 2 RS 232 is not initialized 3 Unused configurable I O are either pulled up inputs or outputs set high 4 PWM for...

Страница 52: ...nk consists of OUT0 OUT7 This call is faster than setting the individual channels but does not output states simultaneously States are written in succession from OUT7 OUT0 A run time error will occur...

Страница 53: ...ts of IN08 IN15 This call is faster than reading the individual channels but does not read the states simultaneously States are read in succession from IN15 IN08 or from IN07 IN00 A run time error wil...

Страница 54: ...4 3 LEDs LED on off control PARAMETERS led is the LED to control 0 LED DS1 1 LED DS2 2 LED DS3 3 LED DS4 value is used to control whether the LED is on or off 0 OFF 1 ON RETURN VALUE None void ledOut...

Страница 55: ...Function Reference Manual and Technical Note 213 Rabbit Serial Port Software Use the following function calls with the Coyote Enables the RS485 transmitter Transmitted data get echo ed back into the...

Страница 56: ...between 0 0 and 3 3 V on the analog input channel 1 if the return value is out of range SEE ALSO cof_anaIn anaInVolts This function is the cofunction version of the analog input for analog input chan...

Страница 57: ...e of the A D converter channel as a linear function using the two conversion points provided Values are calculated and placed into global table _adcCalibS for analog inputs to be stored later into sim...

Страница 58: ...if successful 1 if invalid address or range SEE ALSO anaInEEWr anaInCalib Writes the calibration constants gain and offset for an input based on its designated channel code position into global table...

Страница 59: ...PWM channels Use pwm_init to set the frequency An exception error will occur if brdInit has not been called previously PARAMETERS channel is the PWM output channel to set 0 for DA0 1 for DA1 pwmoptio...

Страница 60: ...igh of the 1024 clock count cycle for example 0 25 1024 RETURN VALUE 0 if successful SEE ALSO pwmOutConfig pwm_init Sets the voltage of an analog output channel by using the previously set calibration...

Страница 61: ...of 930 that corresponds to 3 0 V volts2 is the voltage corresponding to the second D A converter value 0 3 3 V or Vref RETURN VALUE 0 if successful 1 if not able to make calibration constants SEE ALS...

Страница 62: ...LOCK_INFO C in SAMPLES USERBLOCK to get the addresses reserved for the calibration data constants and the addresses available for use in your program NOTE This function cannot be run in RAM PARAMETER...

Страница 63: ...e following bits in RNSTATUSABORT to abort transmitting data after the status byte is returned This does not affect the status byte and still can be interpreted Set any bit com bination to abort bit 7...

Страница 64: ...port select prior to data transfer PARAMETERS portnum 0 RETURN VALUE None This is a macro that disables or deasserts the BL2500 RabbitNet port select to invalidate data transfer PARAMETERS portnum 0 R...

Страница 65: ...it More information is available at www rabbit com 1 Connect the AC adapter and the programming cable as shown in Chapter 2 Getting Started 2 Ethernet Connections If you do not have access to an Ether...

Страница 66: ...nding the reset pins on the back of the Coyote When the PROG connector of the programming cable connects the Coyote to your PC and Dynamic C is running a RESET occurs when you press Ctrl Y The green L...

Страница 67: ...dit the values in the section that directly follows the General Configuration comment in the TCP_CONFIG LIB library You will find this library in the LIB TCPIP directory 3 You can create a CUSTOM_CONF...

Страница 68: ...ion of Windows you are using look for the TCP IP Protocol Network Dial Up Connections Network line or tab Double click on this line or select Properties or Local Area Connection Properties to bring up...

Страница 69: ...n is made Note If the LNK light does not light you may not have a crossover cable or if you are using a hub perhaps the power is off on the hub The next step is to ping the board from your PC This can...

Страница 70: ...er to bring up the Web page served by the sample program http 10 10 6 100 Otherwise use the TCP IP settings you entered in the TCP_CONFIG LIB library The program PINGLED C SAMPLES BL2500 TCPIP demonst...

Страница 71: ...User s Manual 65 APPENDIX A SPECIFICATIONS Appendix A provides the specifications for the Coyote...

Страница 72: ...BBITNET 3 3V AD0 AGND DA0 DA1 AGND VCC DCIN GND TxE RxE GND RxF TxF RS 232 GROUND R18 BT1 C31 RS 485 CMOS SERIAL PORTS GND 3 3V SCLKC RxC TxC GND 485 485 VCC 08 09 10 11 12 13 14 15 GND Dig Inputs 00...

Страница 73: ...C worst case 17 ms settling time to within 5 mV of final value built in RC settling time constant 2 5 ms Serial Ports 6 serial ports one RS 485 two RS 232 or one RS 232 with CTS RTS one clocked serial...

Страница 74: ...round the Coyote in all directions when the Coyote is incorporated into an assembly that includes other components An exclusion zone of 0 12 3 mm is recommended below the Coyote Figure A 2 shows this...

Страница 75: ...R5 C4 C7 C6 C10 C12 C16 U2 C9 C11 C15 C20 J3 C41 C44 DS2 DS1 Y3 C42 C38 Y2 U9 Q1 D1 C33 R29 R28 C22 R32 C24 R33 U5 R14 R18 R19 C13 R11 R12 R21 C23 R16 C18 C17 R20 C25 R24 R30 C26 R23 U6 C19 R15 R17 R...

Страница 76: ...ISTORS R21 R20 R19 R79 C12 R78 R81 R80 JC U8 GND C30 R50 R51 R52 R31 R40 R41 R17 C18 C16 R28 R82 R26 C15 C14 C13 R24 R25 U6 C28 C27 R56 R77 C35 C36 C34 C33 U9 U10 R76 U5 DS1 DS2 DS3 DS4 R27 R71 R70 R6...

Страница 77: ...e jumpers Table A 2 Coyote Jumper Configurations Description Pins Connected Factory Default IN00 IN07 R58 Pulled up to 3 3 V R56 Pulled down R55 Pulled up to K RS 485 Bias and Termination Resistors R2...

Страница 78: ...DS4 High disabled PA7 Output LED DS3 High disabled PB0 Output CLKB SPI High PB1 Input Programming Port Clock High PB2 Input AD0 Low Comparator Driven by comparator PB3 Input AD0 High Comparator Driven...

Страница 79: ...D0 Output Realtek RSTDRV Inactive high PD1 Output Not Used High PD2 Output Ethernet High PD3 Output Ethernet High PD4 Output OUT4 Low PD5 Output OUT5 Low PD6 Output Ethernet High PD7 Output Ethernet H...

Страница 80: ...gh PG0 Input IN04 Pulled up to 3 3 V PG1 Input IN05 Pulled up to 3 3 V PG2 Output TXF RS 232 Serial Port F High PG3 Input RXF RS 232 High PG4 Input IN06 Pulled up to 3 3 V PG5 Input IN07 Pulled up to...

Страница 81: ...at D1 as shown in Figure B 1 Figure B 1 Coyote Power Supply The input voltage range is from 8 V to 40 V DC There is provision on the printed circuit board for a transorb to be installed at TVS1 in par...

Страница 82: ...utput signal A soldered in 1000 mA h lithium battery provides power to the real time clock and SRAM when external power is removed from the circuit board The drain on the battery is less than 10 A whe...

Страница 83: ...2 Reset Generator The Coyote s RabbitCore module uses a reset generator to reset the Rabbit 3000 micro processor when the voltage drops below the voltage necessary for reliable operation The reset ty...

Страница 84: ...sed on Power Supply and Vcc 5 V Current Used at J7 and J8 VRAW Power Supply Input at J2 V Current at Vcc 100 mA 200 mA 300 mA 400 mA 500 mA 600 mA 623 mA 8 0 545 450 355 260 164 69 47 8 5 574 484 395...

Страница 85: ...will need Wire 22 to 30 AWG 0 33 mm2 to 0 049 mm2 for the 0 1 crimp terminals 22 to 26 AWG 0 33 mm2 to 0 13 mm2 for the 0 156 crimp terminals Wire cutters and wire insulation stripper Crimp tool plie...

Страница 86: ...mp terminal facing the opening on the side of the friction lock connector Insert the crimp terminal until the tab snaps into place in the side opening Figure C 2 Insert Crimp Terminals Into Friction L...

Страница 87: ...7 R71 R70 R66 R67 R58 R55 R49 R48 R47 R46 R43 R42 R44 R45 R35 R34 R33 R32 C21 C20 C19 D9 R29 R30 C29 D10 R54 R61 R59 R63 R64 R68 R74 C32 J9 R75 R73 R72 R69 R65 R62 R60 R57 R53 Q5 Q1 D6D4 Q2 Q4 D7 Q3 Q...

Страница 88: ...1 AGND VCC DCIN GND TxE RxE GND RxF TxF RS 232 GROUND R18 BT1 C31 RS 485 CMOS SERIAL PORTS GND 3 3V SCLKC RxC TxC GND 485 485 VCC 08 09 10 11 12 13 14 15 GND Dig Inputs 00 01 02 03 04 05 06 07 GND Dig...

Страница 89: ...VCC DCIN GND TxE RxE GND RxF TxF RS 232 GROUND R18 BT1 C31 RS 485 CMOS SERIAL PORTS GND 3 3V SCLKC RxC TxC GND 485 485 VCC 08 09 10 11 12 13 14 15 GND Dig Inputs 00 01 02 03 04 05 06 07 GND Dig Input...

Страница 90: ...84 Coyote BL2500...

Страница 91: ...et Connections All RabbitNet connections are made point to point A RabbitNet master port can only be connected directly to a peripheral card and the number of peripheral cards is limited by the number...

Страница 92: ...ce voltage is available on the con nector The following connectors are used Signal 0 1 friction lock connectors Power 0 156 friction lock connectors RabbitNet RJ 45 connector D A converter 8 channels...

Страница 93: ...r a data rate of 1 MHz Rabbit recommends a practical limit of 10 m 33 ft Connections between peripheral cards and masters are done using standard 8 conductor Ethernet cables Masters and peripheral car...

Страница 94: ...maximum number of ports A set bit requires a service If portflag 0x03 both RabbitNet ports 0 and 1 will need to be serviced servicetype enables or disables each RabbitNet port as set by the port flag...

Страница 95: ...ev flags RN_MATCH_PORT RN_MATCH_SN newdev ports 0x03 search ports 0 and 1 newdev serialnum E3446C01L handle rn_find newdev RETURN VALUE Returns the handle of the first device matching the criteria 0 i...

Страница 96: ...data length was greater than 15 SEE ALSO rn_read Reads a string from the specified device and register Waits for results This function will check device information to determine that the peripheral c...

Страница 97: ...N VALUE The status byte from the previous command 1 means that device information indicates the peripheral card is not connected to the master Sets software watchdog timeout period Call this function...

Страница 98: ...timer 2 enables software watchdog timer RETURN VALUE The status byte from the previous command 1 means that device information indicates the peripheral card is not connected to the master SEE ALSO rn_...

Страница 99: ...tatus byte from the previous command PARAMETERS handle is an address index to device information Use rn_device or rn_find to establish the handle retdata is a pointer to the return address of the comm...

Страница 100: ...Busy 11 Device not connected 0 Device 1 Router 0 No error 1 Communication error Use the function rn_comm_status to determine which error occurred Reserved for individual peripheral cards Reserved for...

Страница 101: ...friction lock connectors 3 software 3 digital I O SMODE0 31 SMODE1 31 digital inputs 21 dimensions BL2500 66 DIN rail mounting 5 components 5 Dynamic C 4 38 add on modules 39 COM port 14 debugging fe...

Страница 102: ...ias resistors 30 Run Mode 33 S sample programs 41 A D converter inputs AD0 C 42 ADCALIB C 42 COF_ANAIN C 42 DA2AD C 42 DNLOADCALIB C 43 UPLOADCALIB C 43 CONTROLLED C 41 D A converter DAC C 42 DACCALIB...

Страница 103: ...User s Manual 97 function calls readUserBlock 36 writeUserBlock 36 sample programs USERBLOCK_INFO C 52 55 56...

Страница 104: ...98 Coyote BL2500...

Страница 105: ...tion schemat 090 0042 pdf 090 0128 Programming Cable Schematic www rabbit com documentation schemat 090 0128 pdf You may use the URL information provided above to access the latest schematics directly...

Страница 106: ......

Страница 107: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Rabbit Semiconductor 101 0577...

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