Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    MCP6284 Search Results

    SF Impression Pixel

    MCP6284 Price and Stock

    Microchip Technology Inc MCP6284T-E-ST

    IC OPAMP GP 4 CIRCUIT 14TSSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MCP6284T-E-ST Cut Tape 4,542 1
    • 1 $1.82
    • 10 $1.82
    • 100 $1.82
    • 1000 $1.82
    • 10000 $1.82
    		Buy Now
    MCP6284T-E-ST Digi-Reel 4,542 1
    • 1 $1.82
    • 10 $1.82
    • 100 $1.82
    • 1000 $1.82
    • 10000 $1.82
    		Buy Now
    MCP6284T-E-ST Reel 2,500 2,500
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $1.38
    		Buy Now

    Microchip Technology Inc MCP6284-E-SL

    IC OPAMP GP 4 CIRCUIT 14SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MCP6284-E-SL Tube 206 1
    • 1 $1.82
    • 10 $1.82
    • 100 $1.82
    • 1000 $1.82
    • 10000 $1.82
    		Buy Now

    Microchip Technology Inc MCP6284-E-P

    IC OPAMP GP 4 CIRCUIT 14DIP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MCP6284-E-P Tube 188 1
    • 1 $1.99
    • 10 $1.99
    • 100 $1.99
    • 1000 $1.99
    • 10000 $1.99
    		Buy Now

    Microchip Technology Inc MCP6284-E-ST

    IC OPAMP GP 4 CIRCUIT 14TSSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MCP6284-E-ST Tube 86 1
    • 1 $1.82
    • 10 $1.82
    • 100 $1.82
    • 1000 $1.82
    • 10000 $1.82
    		Buy Now

    Microchip Technology Inc MCP6284T-E-SL

    IC OPAMP GP 4 CIRCUIT 14SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MCP6284T-E-SL Reel 2,600
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $1.38
    		Buy Now
    Find more MCP6284 price and stock on Findchips.com

    MCP6284 Datasheets (21)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    MCP6284 Microchip Technology 450 uA, 5 MHz Rail-to-Rail Op Amp Original PDF
    MCP6284-E/P Microchip Technology 450 uA, 5 MHz Bandwidth, Rail-to-Rail Op Amp Original PDF
    MCP6284-E/P Microchip Technology 2.4 - 5.5V 10 MHZ, IQ/BW selectable, Quad, Low Pwr OP Amp, -40C to +125C, 14-PDIP, TUBE Original PDF
    MCP6284-E/P Microchip Technology 450 uA, 5 MHz Rail-to-Rail Op Amp Original PDF
    MCP6284-E/SL Microchip Technology 450 uA, 5 MHz Bandwidth, Rail-to-Rail Op Amp Original PDF
    MCP6284-E/SL Microchip Technology 2.2-5.5V 5MHZ IQ/BW selectable, Quad, Low Power OP Amp, -40C to +125C, 14-SOIC 150mil, TUBE Original PDF
    MCP6284-E/SL Microchip Technology 450 uA, 5 MHz Rail-to-Rail Op Amp Original PDF
    MCP6284-E/SLVAO Microchip Technology Integrated Circuits (ICs) - Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps - IC OPAMP GP 5MHZ RRO 14SOIC Original PDF
    MCP6284-E/SN Microchip Technology 450 uA, 5 MHz Rail-to-Rail Op Amp Original PDF
    MCP6284-E/ST Microchip Technology 450 uA, 5 MHz Rail-to-Rail Op Amp Original PDF
    MCP6284-E/ST Microchip Technology 450 uA, 5 MHz Bandwidth, Rail-to-Rail Op Amp Original PDF
    MCP6284-E/ST Microchip Technology 2.2-5.5V 5MHZ IQ/BW selectable, Quad, Low Power OP Amp, -40C to +125C, 14-TSSOP, TUBE Original PDF
    MCP6284T-E/SL Microchip Technology 450 uA, 5 MHz Bandwidth, Rail-to-Rail Op Amp Original PDF
    MCP6284T-E/SL Microchip Technology 2.2-5.5V 5MHZ IQ/BW selectable, Quad, Low Power OP Amp, -40C to +125C, 14-SOIC 150mil, T/R Original PDF
    MCP6284T-E/SL Microchip Technology 450 uA, 5 MHz Rail-to-Rail Op Amp Original PDF
    MCP6284T-E/SLVAO Microchip Technology Integrated Circuits (ICs) - Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps - IC OPAMP GP 5MHZ RRO 14SOIC Original PDF
    MCP6284T-E/SN Microchip Technology 450 uA, 5 MHz Rail-to-Rail Op Amp Original PDF
    MCP6284T-E/ST Microchip Technology 450 uA, 5 MHz Bandwidth, Rail-to-Rail Op Amp Original PDF
    MCP6284T-E/ST Microchip Technology 2.2-5.5V 5MHZ IQ/BW selectable, Quad, Low Power OP Amp, -40C to +125C, 14-TSSOP, T/R Original PDF
    MCP6284T-E/ST Microchip Technology 450 uA, 5 MHz Rail-to-Rail Op Amp Original PDF

    MCP6284 Datasheets Context Search

    Catalog Datasheet MFG & Type Document Tags PDF

    51597A

    Abstract: DIP14 footprint MCP2120 MCP42010 MCP42050 SOIC-14 MOSFET R3D SOT23 R2P MARK R2C SOT-23 r2e sot 23
    Text: 14-Pin SOIC/DIP/TSSOP Evaluation Board User’s Guide 2006 Microchip Technology Inc. DS51597A Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet.


    Original     		14-Pin DS51597A DS51597A-page 51597A DIP14 footprint MCP2120 MCP42010 MCP42050 SOIC-14 MOSFET R3D SOT23 R2P MARK R2C SOT-23 r2e sot 23 PDF

    Untitled

    Abstract: No abstract text available
    Text: MCP6281/1R/2/3/4/5 450 µA, 5 MHz Rail-to-Rail Op Amp Features Description • • • • • • • • The Microchip Technology Inc. MCP6281/1R/2/3/4/5 family of operational amplifiers op amps provide wide bandwidth for the current. This family has a 5 MHz Gain


    Original     		MCP6281/1R/2/3/4/5 MCP6281/1R/2/3/4/5 DS21811E-page PDF

    MCP6281

    Abstract: MCP6282 MCP6283 MCP6284 MCP6285
    Text: MCP6281/1R/2/3/4/5 450 µA, 5 MHz Rail-to-Rail Op Amp Features Description • • • • • • • • The Microchip Technology Inc. MCP6281/1R/2/3/4/5 family of operational amplifiers op amps provide wide bandwidth for the current. This family has a 5 MHz Gain


    Original     		MCP6281/1R/2/3/4/5 MCP6281/1R/2/3/4/5 OT-23 DS21811E-page MCP6281 MCP6282 MCP6283 MCP6284 MCP6285 PDF

    schematic diagram atx Power supply 500w

    Abstract: pioneer PAL 012A 1000w inverter PURE SINE WAVE schematic diagram 600va numeric ups circuit diagrams winbond bios 25064 TLE 9180 infineon smsc MEC 1300 nu TBE schematic diagram inverter 2000w DK55 circuit diagram of luminous 600va UPS
    Text: QUICK INDEX NEW IN THIS ISSUE! Detailed Index - See Pages 3-24 Digital Signal Processors, iCoupler , iMEMS® and iSensor . . . . . 805, 2707, 2768-2769 Connectors, Cable Assemblies, IC Sockets . . . . . . . . . . . 28-568 RF Connectors . . . . . . . . . . . . . . . . . . . . . . Pages 454-455


    Original     		P462-ND P463-ND LNG295LFCP2U LNG395MFTP5U US2011) schematic diagram atx Power supply 500w pioneer PAL 012A 1000w inverter PURE SINE WAVE schematic diagram 600va numeric ups circuit diagrams winbond bios 25064 TLE 9180 infineon smsc MEC 1300 nu TBE schematic diagram inverter 2000w DK55 circuit diagram of luminous 600va UPS PDF

    Untitled

    Abstract: No abstract text available
    Text: All Mikroelektronika’s development systems feature a large number of peripheral modules expanding microcontroller’s range of application and making the process of program testing easier. In addition to these modules, it is also possible to use numerous additional modules linked to the development system


    Original     		12-bit 100nF AVR-8051 PDF

    Untitled

    Abstract: No abstract text available
    Text: All Mikroelektronika’s development systems feature a large number of peripheral modules expanding microcontroller’s range of application and making the process of program testing easier. In addition to these modules, it is also possible to use numerous additional modules linked to the development system


    Original     		12-bit viaCP1541 MCP6284 BAT43 100nF PDF

    6284EST

    Abstract: SN 4931 N spice models TIP 127 MCP6281 MCP6282 MCP6283 MCP6284 MCP6285 SN0722
    Text: MCP6281/1R/2/3/4/5 450 µA, 5 MHz Rail-to-Rail Op Amp Features Description • • • • • • • • The Microchip Technology Inc. MCP6281/1R/2/3/4/5 family of operational amplifiers op amps provide wide bandwidth for the current. This family has a 5 MHz Gain


    Original     		MCP6281/1R/2/3/4/5 MCP6281/1R/2/3/4/5 DS21811E-page 6284EST SN 4931 N spice models TIP 127 MCP6281 MCP6282 MCP6283 MCP6284 MCP6285 SN0722 PDF

    FSQ510 Equivalent

    Abstract: BTA12 6008 bta16 6008 ZIGBEE interface with AVR ATmega16 Precision triac control thermostat thyristor t 558 f eupec gw 5819 diode transistor a564 A564 transistor BSM25GP120 b2
    Text: SEMICONDUCTORS MCU/MPU/DSP Atmel. . . . . . . . . 167, 168, 169, 170, 171, 172 Blackhawk. . . . . . . . . . . . . . . . . . . . . . . . . 173 Cyan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Cypress. . . . . . . . . . . . . . . 175, 176, 177, 178


    Original     		GP-20) FSQ510 Equivalent BTA12 6008 bta16 6008 ZIGBEE interface with AVR ATmega16 Precision triac control thermostat thyristor t 558 f eupec gw 5819 diode transistor a564 A564 transistor BSM25GP120 b2 PDF

    Arduino Mega2560

    Abstract: 13001 S 6D TRANSISTOR arduino uno rev 3 agilent optical encoder 9988 MZ 13001 TRANSISTOR arduino mega 2650 skiip 613 gb 123 ct arduino sound sensor module pic arduino nano mc34063l
    Text: ND3% BASE1 XXXX2108-0010-1-P 10 TSQ: 3001 CMS: CMS-USM TS host OP: NN COMP: 15-07-11 Hour: 13:07 TS:TS date TS time MCUS, MPUS, DSPS & DEVELOPMENT TOOLS Find Datasheets Online 8-BIT MCUS & DEVELOPMENT TOOLS 1 PSoC 3 DEVELOPMENT KITS ARDUINO MCU DEVLOPMENT PLATFORM


    Original     		CY8C38 CY8C29 incl795 12T9797 12T9804 12T9803 12T9800 12T9802 12T9801 12T9805 Arduino Mega2560 13001 S 6D TRANSISTOR arduino uno rev 3 agilent optical encoder 9988 MZ 13001 TRANSISTOR arduino mega 2650 skiip 613 gb 123 ct arduino sound sensor module pic arduino nano mc34063l PDF

    PIC16f690 example codes

    Abstract: PIC18f4520 enc28j60 spi example codes PIC18f4431 PWM example codes PIC16f877a example code spi master configuration PIC16f876 example codes PIC18f4520 PWM example codes RF transmitter 433.92 3 pin 12v PIC16f877a example uart codes PIC16F84 example codes picdem 2 plus demo board pic18f4520 examples
    Text: 1st Half 2005 January - March 2005 Product Selector Guide Product Profile PICmicro Microcontrollers Microchip’s PICmicro® family of microcontrollers combine high performance, low cost and small package size to offer the best price/ performance ratio in the industry. Based on a powerful RISC core, the PICmicro architecture provides users an easy migration path


    Original     		DS00148K1 PIC16f690 example codes PIC18f4520 enc28j60 spi example codes PIC18f4431 PWM example codes PIC16f877a example code spi master configuration PIC16f876 example codes PIC18f4520 PWM example codes RF transmitter 433.92 3 pin 12v PIC16f877a example uart codes PIC16F84 example codes picdem 2 plus demo board pic18f4520 examples PDF

    MCP60421

    Abstract: mcp61421 PIC16F877 stepper motor interfacing PIC16F874A SD card Thermistor 20SP switch reluctance motor control using pic18F46K20 ENC28J60 mplab icd 3 mclr pgd pgc pic16f722 TC1426 rf transmitter and receiver for pic16f887
    Text: July - September 2006 2006 Product Selector Guide Product Profile 8-bit PIC Microcontrollers Microchip’s PIC® family of microcontrollers combine high-performance, low cost and small package size to offer the best price/ performance ratio in the industry. Based on a powerful RISC core, these 8-bit PIC®microcontrollers fall into three product architecture


    Original     		12-bit 14-bit PIC18) 16-bit DS00148L2 DS00148L2* MCP60421 mcp61421 PIC16F877 stepper motor interfacing PIC16F874A SD card Thermistor 20SP switch reluctance motor control using pic18F46K20 ENC28J60 mplab icd 3 mclr pgd pgc pic16f722 TC1426 rf transmitter and receiver for pic16f887 PDF

    MCP9808

    Abstract: MCP3903 mtd6505 MCP3910 mcp2210 mcp3911 MCP14E8 PIC18f4550 assembly programming PWM MCP16322 MCP4706
    Text: Analog and Interface Product Solutions Spring 2012 Analog and Interface Product Selector Guide  Thermal Management  Motor Drivers  Interface Peripherals  Power Management  Linear & Mixed-Signal  Safety & Security www.microchip.com/analog


    Original     		DS21060Z DS21060Z* MCP9808 MCP3903 mtd6505 MCP3910 mcp2210 mcp3911 MCP14E8 PIC18f4550 assembly programming PWM MCP16322 MCP4706 PDF

    PIC18f4550 assembly programming PWM

    Abstract: MCP3909 MICROCHIP CROSS TC4428 TC620 CROSS tc1047 cross reference TC1029 pt100 to92
    Text: Analog and Interface Product Solutions Stand-Alone Analog and Interface Solutions „ Thermal Management „ Battery Management „ Power Management „ Linear & Mixed-Signal „ Interface Peripherals www.microchip.com/analog Are you Looking for Complete Analog & Interface Design Solutions?


    Original     		auto-5869 DS21060L DS21060L* PIC18f4550 assembly programming PWM MCP3909 MICROCHIP CROSS TC4428 TC620 CROSS tc1047 cross reference TC1029 pt100 to92 PDF

    PIC18f4431 PWM example codes

    Abstract: PIC18F2680 Dc motor speed Controlled with Pic16F877A PIC12f675 example codes PIC16F84 PHOTOS PIC16f690 spi example codes PIC18F4550 example C18 lcd codes TC7107 microchip mcp3221 application PIC18f4520 PWM example codes
    Text: 2nd Half 2004 October - December 2004 Product Selector Guide Product Profile PICmicro Microcontrollers Microchip’s PICmicro® family of microcontrollers combine high performance, low cost and small package size to offer the best price/ performance ratio in the industry. Based on a powerful RISC core, the PICmicro architecture provides users an easy migration path


    Original     		DS00148J4 PIC18f4431 PWM example codes PIC18F2680 Dc motor speed Controlled with Pic16F877A PIC12f675 example codes PIC16F84 PHOTOS PIC16f690 spi example codes PIC18F4550 example C18 lcd codes TC7107 microchip mcp3221 application PIC18f4520 PWM example codes PDF

    sn0407

    Abstract: non-inverting op-amp Sallen-Key mcp6283 14L-PDIP MCP6281 MCP6282 MCP6284 MCP6285 NC 5022
    Text: MCP6281/2/3/4/5 450 µA, 5 MHz Rail-to-Rail Op Amp Features Description • • • • • • • • The Microchip Technology Inc. MCP6281/2/3/4/5 family of operational amplifiers op amps provide wide bandwidth for the current. This family has a 5 MHz gain


    Original     		MCP6281/2/3/4/5 MCP6281/2/3/4/5 D-85737 NL-5152 DS21811C-page sn0407 non-inverting op-amp Sallen-Key mcp6283 14L-PDIP MCP6281 MCP6282 MCP6284 MCP6285 NC 5022 PDF

    mcp6283

    Abstract: 14L-PDIP MCP6281 MCP6282 MCP6284 MCP6285 MCP6295
    Text: MCP6281/2/3/4/5 450 µA, 5 MHz Bandwidth, Rail-to-Rail Op Amp Features Description • • • • • • • • The Microchip Technology Inc. MCP6281/2/3/4/5 family of operational amplifiers op amps provide wide bandwidth for the current. This family has a 5 MHz gain


    Original     		MCP6281/2/3/4/5 MCP6281/2/3/4/5 DK-2750 D-85737 NL-5152 DS21811C-page mcp6283 14L-PDIP MCP6281 MCP6282 MCP6284 MCP6285 MCP6295 PDF

    3 phase pwm pic16f877

    Abstract: 1X16 lcd module pic16f877a based spi sm 0038 ir receiver lcd 2*16 Side Brazed Ceramic Dual-In-Line Packages 28 One-chip telephone IC audio Amp. mosfet 1000 watt 400 Watt Audio amplifier IC control dc motor using Pic16F877A
    Text: PRODUCT LINE CARD INCLUDING DEVELOPMENT TOOLS 2ND HALF 2003 MOST CURRENT VERSION AVAILABLE ON WWW.MICROCHIP.COM WWW.MICROCHIP.COM Product Profile PICmicro Microcontrollers Microchip’s PICmicro® family of microcontrollers combine high performance, low cost and small package size to offer the best


    Original     		DS00148H3 3 phase pwm pic16f877 1X16 lcd module pic16f877a based spi sm 0038 ir receiver lcd 2*16 Side Brazed Ceramic Dual-In-Line Packages 28 One-chip telephone IC audio Amp. mosfet 1000 watt 400 Watt Audio amplifier IC control dc motor using Pic16F877A PDF

    MCP6402E

    Abstract: mcp651 soic8 SOIC-8 Operational Amplifiers SOT-23-5 MCP6V01E mcp6071e
    Text: 1986-2012:QuarkCatalogTempNew 9/11/12 8:34 AM Page 1986 TEST & MEASUREMENT 25 Analog Semiconductors Operational Amplifiers RoHS Features: ᭤ mCal on Board Calibration Circuit MCP651, MCP652 and MCP655 ᭤ Rail-to-Rail Input/Output for Improved System Performance


    Original     		MCP651, MCP652 MCP655) OT-23-5 MSOP-10 SC70-5 TSSOP-14 MCP6402E mcp651 soic8 SOIC-8 Operational Amplifiers SOT-23-5 MCP6V01E mcp6071e PDF

    MCP6522

    Abstract: MCP3424 MCP3428 MCAL MCP3425 SAMPLE CODE IN C MCP3426 Product Selector Guide TC1121 TC7107 microchip MCP4728
    Text: Analog and Interface Product Solutions Fall 2009 Analog and Interface Product Selector Guide  Thermal Management  Battery Management  Interface Peripherals  Power Management  Linear & Mixed-Signal  Safety & Security www.microchip.com/analog


    Original     		DS21060S DS21060S* MCP6522 MCP3424 MCP3428 MCAL MCP3425 SAMPLE CODE IN C MCP3426 Product Selector Guide TC1121 TC7107 microchip MCP4728 PDF

    MCP6284

    Abstract: MCP6285 MCP6281 MCP6282 MCP6283
    Text: MCP6281/1R/2/3/4/5 450 µA, 5 MHz Rail-to-Rail Op Amp Features Description • • • • • • • • The Microchip Technology Inc. MCP6281/1R/2/3/4/5 family of operational amplifiers op amps provide wide bandwidth for the current. This family has a 5 MHz Gain


    Original     		MCP6281/1R/2/3/4/5 MCP6281/1R/2/3/4/5 OT-23 DS21811E-page MCP6284 MCP6285 MCP6281 MCP6282 MCP6283 PDF

    6284EST

    Abstract: SN 4931 2E-05 MCP6285 MCP6281 MCP6282 MCP6283 MCP6284 052E-05 50E06
    Text: MCP6281/1R/2/3/4/5 450 µA， 5 MHz 轨到轨输入 / 输出运放 特性 概述 • • • • • • • Microchip Technology Inc. 的 MCP6281/1R/2/3/4/5 系列 运算放大器 （运放）提供较宽的电流带宽。该系列运放 具有 5 MHz 增益带宽积 （Gain Bandwidth Product，


    Original     		MCP6281/1R/2/3/4/5 MCP6283 MCP6285 MCP62858 MCP6281/1R/2/3/4/5-40 MCP6281 OT-23-5 6284EST SN 4931 2E-05 MCP6285 MCP6281 MCP6282 MCP6283 MCP6284 052E-05 50E06 PDF

    ultrasonic flowmeter transducer circuit

    Abstract: ultrasonic anemometer ultrasonic flowmeter circuit DEMO 7652 Thermistor hot-wire ultrasonic flowmeter sensor motion DETECTOR CIRCUIT ULTRASONIC doppler flowMETER pressure sensor interface using mcp3202 ultrasonic motion detector sensor
    Text: Analog and Interface Product Solutions Signal Chain Design Guide Devices For Use With Sensors Design ideas in this guide use the following devices. A complete device list and corresponding data sheets for these products can be found at www.microchip.com. Programmable Gain Amplifier


    Original     		MCP6S21, MCP6S22, MCP6S26, MCP6S28) MCP6S91, MCP6S92, MCP6S93) MCP3002, MCP3301, ultrasonic flowmeter transducer circuit ultrasonic anemometer ultrasonic flowmeter circuit DEMO 7652 Thermistor hot-wire ultrasonic flowmeter sensor motion DETECTOR CIRCUIT ULTRASONIC doppler flowMETER pressure sensor interface using mcp3202 ultrasonic motion detector sensor PDF

    IR RC5 encoder PIC

    Abstract: PIC18F45K20 demo board PIC16F877A Microcontroller architecture 15x10-bit PIC16F877A for sensor DM183022 48v battery charger lead pic16f877a based spi PIC18F96J60 PICmicro Reference Manual
    Text: October - December 2005 Update 2005 Product Selector Guide Product Profile 8-bit PICmicro Microcontrollers Microchip’s PICmicro® family of microcontrollers combine high performance, low cost and small package size to offer the best price/ performance ratio in the industry. Based on a powerful RISC core, these 8-bit PIC® microcontrollers fall into three product architecture


    Original     		12-bit 14-bit 896-14K PIC18) DS00148K4 IR RC5 encoder PIC PIC18F45K20 demo board PIC16F877A Microcontroller architecture 15x10-bit PIC16F877A for sensor DM183022 48v battery charger lead pic16f877a based spi PIC18F96J60 PICmicro Reference Manual PDF

    MPC73832

    Abstract: mcp60021 switch reluctance motor control using pic18F46K20 PIC18FXXKXX mcp61421 MCP3909 LCD AC162 DM164120-3 PIC16f877a c code for ethernet module enc28j60 PIC16F874A SD card
    Text: January - June 2007 2007 Product Selector Guide Product Profile 8-bit PIC Microcontrollers Microchip’s 8-bit PIC® microcontrollers combine high-performance, low cost and small package size to offer the best price/ performance ratio in the industry. Based on a powerful RISC core, these 8-bit PIC®microcontrollers fall into three product architecture


    Original     		12-bit 14-bit PIC18) 16-bit DS00148M DS00148L2* MPC73832 mcp60021 switch reluctance motor control using pic18F46K20 PIC18FXXKXX mcp61421 MCP3909 LCD AC162 DM164120-3 PIC16f877a c code for ethernet module enc28j60 PIC16F874A SD card PDF