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

    29D4 Search Results

    SF Impression Pixel

    29D4 Price and Stock

    Microchip Technology Inc MIC803-29D4VM3-TR

    IC SUPERVISOR 1 CHANNEL SOT23-3
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MIC803-29D4VM3-TR Reel 6,000 3,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.33
    		Buy Now
    Mouser Electronics MIC803-29D4VM3-TR 4,011
    • 1 $0.43
    • 10 $0.43
    • 100 $0.33
    • 1000 $0.33
    • 10000 $0.33
    		Buy Now
    Newark MIC803-29D4VM3-TR Cut Tape 131 1
    • 1 $0.447
    • 10 $0.447
    • 100 $0.447
    • 1000 $0.447
    • 10000 $0.447
    		Buy Now
    Microchip Technology Inc MIC803-29D4VM3-TR
    • 1 $0.43
    • 10 $0.43
    • 100 $0.33
    • 1000 $0.26
    • 10000 $0.24
    		Buy Now
    Bristol Electronics MIC803-29D4VM3-TR 6,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    NAC MIC803-29D4VM3-TR 30,000 1
    • 1 $0.25
    • 10 $0.25
    • 100 $0.22
    • 1000 $0.2
    • 10000 $0.2
    		Buy Now
    NexGen Digital MIC803-29D4VM3-TR 2,084
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Avnet Silica MIC803-29D4VM3-TR 6 Weeks 3,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now
    Chip Stock MIC803-29D4VM3-TR 26,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    EBV Elektronik MIC803-29D4VM3-TR 5 Weeks 3,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now
    Master Electronics MIC803-29D4VM3-TR 6,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.3156
    		Buy Now

    KEMET Corporation C0805C229D4HAC7800

    CAP CER 2.2PF 16V X8R 0805
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey C0805C229D4HAC7800 Cut Tape 3,950 1
    • 1 $0.1
    • 10 $0.062
    • 100 $0.0277
    • 1000 $0.01639
    • 10000 $0.01639
    		Buy Now

    Suntsu Electronics Inc SAW2129D4B-32.768K

    CRYSTAL 32.768K 9PF SMD
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey SAW2129D4B-32.768K Bulk 3,000 1
    • 1 $0.66
    • 10 $0.548
    • 100 $0.4326
    • 1000 $0.40946
    • 10000 $0.40946
    		Buy Now

    Suntsu Electronics Inc SAW2129D4A-32.768K

    CRYSTAL 32.768K 9PF SMD
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey SAW2129D4A-32.768K Bulk 3,000 1
    • 1 $0.65
    • 10 $0.538
    • 100 $0.4226
    • 1000 $0.39946
    • 10000 $0.39946
    		Buy Now

    Maxim Integrated Products MAX6390XS29D4+T

    IC SUPERVISOR 1 CHANNEL SC70-4
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MAX6390XS29D4+T Reel 2,500 2,500
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $2.20153
    		Buy Now
    MAX6390XS29D4+T Cut Tape 1,226 1
    • 1 $5.93
    • 10 $3.992
    • 100 $2.927
    • 1000 $2.34896
    • 10000 $2.34896
    		Buy Now
    Bristol Electronics MAX6390XS29D4+T 1,900
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    MAX6390XS29D4+T 171
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Find more 29D4 price and stock on Findchips.com

    29D4 Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    01AE

    Abstract: HEART BEAT SENSOR nmis 3007 16C54 AN585 PIC16C54 PIC16C57 PIC16C64
    Text: AN585 A Real-Time Operating System for PICmicro Microcontrollers Why do I Need a Real-Time Kernel? Author: Jerry Farmer Myriad Development Company INTRODUCTION Ever dream of having a Real-Time Kernel for the PIC16CXXX family of microcontrollers? Or ever wonder what Multitasking or Threads are all about? Then


    Original     		PDF AN585 PIC16CXXX DS00585B-page 01AE HEART BEAT SENSOR nmis 3007 16C54 AN585 PIC16C54 PIC16C57 PIC16C64

    ZPD 3V3

    Abstract: PIC16F84A LED switch debouncing PIC16F84A Free Projects of LED diode zener zpd 3v3 ZPD ITT ITT ZPD 7.5 BY304 DIODE 0A91 LM032LT 3014 LED
    Text: M AN689 Engineer’s Assistant Using a PIC16F84A Author: Voja Antonic PC Press INTRODUCTION This compact instrument is intended to be a digital laboratory tool for hardware and, in some cases, software debugging. It contains four instruments in one unit: logic probe, single channel logic state analyzer, frequency counter and serial code receiver.


    Original     		PDF AN689 PIC16F84A PIC16F84A ZPD 3V3 PIC16F84A LED switch debouncing PIC16F84A Free Projects of LED diode zener zpd 3v3 ZPD ITT ITT ZPD 7.5 BY304 DIODE 0A91 LM032LT 3014 LED

    Q8031

    Abstract: ISL9504 U7500 SLG8LP436 ISL9504 macbook "board view" macbook 820-1889 c5966 U6200 PP3V42G3H
    Text: 8 6 7 1. ALL RESISTANCE VALUES ARE IN OHMS, 0.1 WATT +/- 5%. 2. ALL CAPACITANCE VALUES ARE IN MICROFARADS. 3. ALL CRYSTALS & OSCILLATOR VALUES ARE IN HERTZ. 2 3 4 5 1 CK APPD M42C MLB REV ZONE ECN ENG APPD DESCRIPTION OF CHANGE DATE C 474680 PRODUCTION RELEASED


    Original     		PDF ITP700FLEX LIP-SM-M42 Q8031 ISL9504 U7500 SLG8LP436 ISL9504 macbook "board view" macbook 820-1889 c5966 U6200 PP3V42G3H

    RTL8211E

    Abstract: Marvell 88E1116R TC7SZ08AFEAPE TLA-6T213HF C5855 88E1116R 57B8 PP3V42 NTC 15D-7 u9701
    Text: 8 6 7 REV ZONE ECN ENG APPD DESCRIPTION OF CHANGE DATE M97A MLB SCHEMATIC C 681298 PRODUCTION RELEASED DATE 03/11/09 ? REFERENCED FROM T18 03/11/2009 D .csa Date Page TABLE_TABLEOFCONTENTS_HEAD TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM


    Original     		PDF

    sil1162

    Abstract: Diode 31d8 06 31d8 diode C828 3-pin transistor 2N7002DW 3 PIN hall effect sensor u58 hall effect sensor u58 zener 12a2 powerbook bubba oscillator schematic
    Text: 8 6 7 2 3 4 5 CK APPD 1. ALL RESISTANCE VALUES ARE IN OHMS, 0.1 WATT +/- 5%. 2. ALL CAPACITANCE VALUES ARE IN MICROFARADS. 3. ALL CRYSTALS & OSCILLATOR VALUES ARE IN HERTZ. REV ZONE ECN PAGE B TITLE PAGE AND CONTENTS SYSTEM BLOCK DIAGRAM POWER BLOCK DIAGRAM


    Original     		PDF MPC7450 200PIN RPAK10P2C 1000BT SN74AUC1G04 sil1162 Diode 31d8 06 31d8 diode C828 3-pin transistor 2N7002DW 3 PIN hall effect sensor u58 hall effect sensor u58 zener 12a2 powerbook bubba oscillator schematic

    H8S-2110B

    Abstract: HDR-40P-2R-SMD samsung u544 AMD 218S6ECLA21FG SB600 BGA IC monacor sp 202 SI2315BDS-T1 BD2430 RS600ME 36B2 U544-5
    Text: 4 3 2 1 SAMSUNG PROPRIETARY THIS DOCUMENT CONTAINS CONFIDENTIAL PROPRIETARY INFORMATION THAT IS SAMSUNG ELECTRONICS CO’S PROPERTY. DO NOT DISCLOSE TO OR DUPLICATE FOR OTHERS EXCEPT AS AUTHORIZED BY SAMSUNG. TABLE OF CONTENTS D MONACO-R C B g n l u a s i


    Original     		PDF P16806 TP16807 TP16808 TP16809 TP16810 TP16811 TP16812 TP16813 TP16814 TP16815 H8S-2110B HDR-40P-2R-SMD samsung u544 AMD 218S6ECLA21FG SB600 BGA IC monacor sp 202 SI2315BDS-T1 BD2430 RS600ME 36B2 U544-5

    MV64460

    Abstract: HC74 G4 C438 capacitor SDA 5450 c48 31F4 R731 ABB C564 transistor C546 C587 MR 4710
    Text: CR-1 : @BUCKEYE_PROJ_LIB.BUCKEYE2 SCH_1 :PAGE1 8 6 7 5 4 3 2 1 TABLE OF CONTENTS PAGE - CONTENTS 1 TABLE OF CONTENTS, POWER SUPPLY LIST 2 BLOCK DIAGRAM 3 POWERPC 750GX ADDRESS BUS 4 POWERPC 750GX DATA BUS 5 POWERPC 750GX CONTROL, JTAG 6 POWERPC 750GX POWER


    Original     		PDF 750GX 38P1931 38P1931 MV64460 HC74 G4 C438 capacitor SDA 5450 c48 31F4 R731 ABB C564 transistor C546 C587 MR 4710

    20C8

    Abstract: 20B3 diode 22B2 DIODE DIODE 22B4 RB342 diode 62b3 22A5 61a3 55A7 20D2
    Text: DS33Z44DK Ethernet Transport Design Kit www.maxim-ic.com GENERAL DESCRIPTION FEATURES Demonstrates Key Functions of DS33Z44 Ethernet Transport Chipset Includes Two Resource Cards: One with DS21458 T1/E1 SCT and one with DS3174 T3/E3 SCT, Transformers, BNC and RJ48


    Original     		PDF DS33Z44DK DS33Z44 DS21458 DS3174 MMC2107 DS33Z44 GND105 GND117 CR-63 20C8 20B3 diode 22B2 DIODE DIODE 22B4 RB342 diode 62b3 22A5 61a3 55A7 20D2

    Untitled

    Abstract: No abstract text available
    Text: CMOS CSI 0.5 micron Process OPERATING LIFE @ TA = +125C AT RATED VOLTAGE 7/14/2010 Device MIC2003 1.2YM5 MIC2004 0.8YM5 MIC2005A 1YM6 MIC2005A 2YM6 MIC2005A 1YM6 MIC2005A 2YM6 MIC2005M 0.8YM5 MIC2005M 0.5YM6 MIC2005 0.5BM6 MIC2006 1.2BM6 MIC2007 YM6 MIC2007 YM6


    Original     		PDF MIC2003 MIC2004 MIC2005A MIC2005M MIC2005 MIC2006

    ALARM-PIC16C54

    Abstract: 16C54 AN585 PIC16C54 PIC16C57 PIC16C64 PIC based fire alarm system heart beat
    Text: AN585 A Real-Time Operating System for PICmicro Microcontrollers Why do I Need a Real-Time Kernel? Author: Jerry Farmer Myriad Development Company INTRODUCTION Ever dream of having a Real-Time Kernel for the PIC16CXXX family of microcontrollers? Or ever wonder what Multitasking or Threads are all about? Then


    Original     		PDF AN585 PIC16CXXX D-81739 ALARM-PIC16C54 16C54 AN585 PIC16C54 PIC16C57 PIC16C64 PIC based fire alarm system heart beat

    heart beat sensor

    Abstract: 16C54 AN585 PIC16C54 PIC16C57 PIC16C5X PIC16C64 PIC16CXX PIC16 interrupts 0A48
    Text: PIC16/17 Real-Time Operating System AN585 A Real-Time Operating System for PIC16/17 Author: Jerry Farmer - Myriad Development Company I. INTRODUCTION Why do I Need a Real-Time Kernel ? Ever dream of having a Real-Time Kernel for the PIC16CXX family of microprocessors ? Or ever wonder


    Original     		PDF PIC16/17 AN585 PIC16/17 PIC16CXX heart beat sensor 16C54 AN585 PIC16C54 PIC16C57 PIC16C5X PIC16C64 PIC16 interrupts 0A48

    Untitled

    Abstract: No abstract text available
    Text: 123456789ABCA2DE7FC44A97  !"#"$7 81#%!4 •1BC7! 4A9-.97/049.23/62C74 )+6978,4$76C*4#A9-.97/041.239A414 ·1D73.24A9-.97/04AC9443!13341=844 $#


    Original     		PDF 123456789ABCA2DE7FC4 AC944 46A942 67/9D46 62CA74 7D699726 9467D4@ 229A4 97242C4

    ISL9504

    Abstract: "board view" macbook macbook C4130 k20 apple PP3V42G3H PP3V42 U6200 58A-6 p66 apple
    Text: 8 6 7 1. ALL RESISTANCE VALUES ARE IN OHMS, 0.1 WATT +/- 5%. 2. ALL CAPACITANCE VALUES ARE IN MICROFARADS. 3. ALL CRYSTALS & OSCILLATOR VALUES ARE IN HERTZ. 2 3 4 5 1 CK APPD M42C MLB REV ZONE ECN ENG APPD DESCRIPTION OF CHANGE DATE C 474680 PRODUCTION RELEASED


    Original     		PDF ITP700FLEX ISL9504 "board view" macbook macbook C4130 k20 apple PP3V42G3H PP3V42 U6200 58A-6 p66 apple

    20b1 diode

    Abstract: TP5056 samsung R530 2.0b1 diode TP-103-03 TP10592 smd diode ab11 b34 TP10387 sock 30p-2r-smd diode 107 10K 521
    Text: 이 문서는 삼성전자의 기술 자산으로 승인자만이 사용할 수 있습니다. This Document can not be used without Samsung's authorization. 9. 회로도 9-1. External Graphic 9 - 1 4 3 2 1 SAMSUNG PROPRIETARY THIS DOCUMENT CONTAINS CONFIDENTIAL


    Original     		PDF bridge/IDE/AC97/SMBUS CONN-12P-FPC 100nF 20b1 diode TP5056 samsung R530 2.0b1 diode TP-103-03 TP10592 smd diode ab11 b34 TP10387 sock 30p-2r-smd diode 107 10K 521

    2SD618

    Abstract: MOTHERBOARD INTEL G31 ICH7 SCHEMATIC DIAGRAM BC615 DIODE 20B2 samsung u252 20b1 diode TP-107-02 SAMSUNG R60 plus S3F94 SLB9635TT1.2
    Text: 4 3 2 1 SAMSUNG PROPRIETARY THIS DOCUMENT CONTAINS CONFIDENTIAL PROPRIETARY INFORMATION THAT IS SAMSUNG ELECTRONICS CO’S PROPERTY. DO NOT DISCLOSE TO OR DUPLICATE FOR OTHERS EXCEPT AS AUTHORIZED BY SAMSUNG. Table of Contents SEDONA_plus Sheet 1. COVER Sheet 2 - 7. DIAGRAM Block/Power & ANNOTATIONS


    Original     		PDF Yonah667 BA41-00697A CALISTP11574 TP11575 TP11578 TP11579 TP11516 TP11517 TP11520 2SD618 MOTHERBOARD INTEL G31 ICH7 SCHEMATIC DIAGRAM BC615 DIODE 20B2 samsung u252 20b1 diode TP-107-02 SAMSUNG R60 plus S3F94 SLB9635TT1.2

    24B4

    Abstract: ap4435gm R7790 47-D3 RS600ME 218s6ecla21fg SMD BF5 schematic diagram crt tv samsung GR733 Socket AM2
    Text: 4 3 2 1 SAMSUNG PROPRIETARY THIS DOCUMENT CONTAINS CONFIDENTIAL PROPRIETARY INFORMATION THAT IS SAMSUNG ELECTRONICS CO’S PROPERTY. DO NOT DISCLOSE TO OR DUPLICATE FOR OTHERS EXCEPT AS AUTHORIZED BY SAMSUNG. TABLE OF CONTENTS D ACCORDION-R C B g n l u a s


    Original     		PDF TP16840 TP16841 TP16842 TP16843 TP16844 TP16845 TP16846 TP16847 TP16848 TP16849 24B4 ap4435gm R7790 47-D3 RS600ME 218s6ecla21fg SMD BF5 schematic diagram crt tv samsung GR733 Socket AM2

    MMZ1608S121AT

    Abstract: nc10 samsung 45-D2 Samsung ddr2 7SZ14 BA09-00009A INTEL945GMS SMD y8 samsung nc10 bios Socket AM2
    Text: 4 3 1 2 SAMSUNG PROPRIETARY THIS DOCUMENT CONTAINS CONFIDENTIAL PROPRIETARY INFORMATION THAT IS SAMSUNG ELECTRONICS CO’S PROPERTY. DO NOT DISCLOSE TO OR DUPLICATE FOR OTHERS EXCEPT AS AUTHORIZED BY SAMSUNG. Table of Contents D RIMINI CPU : INTEL YONAH-ULV


    Original     		PDF 945GMS BA41-00680A BA41-00683A Pag614 TP18615 TP18616 TP18617 TP18618 TP18619 TP18620 MMZ1608S121AT nc10 samsung 45-D2 Samsung ddr2 7SZ14 BA09-00009A INTEL945GMS SMD y8 samsung nc10 bios Socket AM2

    Slide Switch 1P2T

    Abstract: C0805C104KRAC7800 EG1218 PTC36SAAN TPS2140 TPS2141 TPS2150 TPS2151
    Text: TPS2151 Power Management With LDO and DualĆCurrentĆLimited Power Switch Evaluation Module User’s Guide March 2002 PMP Portable Power SLVU067 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries TI reserve the right to make corrections, modifications,


    Original     		PDF TPS2151 SLVU067 Slide Switch 1P2T C0805C104KRAC7800 EG1218 PTC36SAAN TPS2140 TPS2141 TPS2150 TPS2151

    16b3 zener diode

    Abstract: Zener Diode 13B3 ltsx e3 Zener 13B3 XC95288XL-PQ208 plx9054 ieee.std_logic_1164.all plx9054 16b3 C143 ESP Zener diode 10b3
    Text: RELEASED REFERENCE DESIGN PMC-1990887 ISSUE 4 AAL1GATOR-32 REFERENCE DESIGN PM73122 AAL1GATOR-32 REFERENCE DESIGN PRELIMINARY INFORMATION ISSUE 4: OCTOBER 2001 PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE RELEASED


    Original     		PDF PMC-1990887 AAL1GATOR-32 PM73122 AAL1GATOR-32 16b3 zener diode Zener Diode 13B3 ltsx e3 Zener 13B3 XC95288XL-PQ208 plx9054 ieee.std_logic_1164.all plx9054 16b3 C143 ESP Zener diode 10b3

    d7810

    Abstract: L9141 MXM pinout U4900 J9002 K40 fet MARK G4 SOT363 Apple j9002 k50 apple ISL6269
    Text: 8 6 7 2 3 4 5 1 CK APPD 1. ALL RESISTANCE VALUES ARE IN OHMS, 0.1 WATT +/- 5%. 2. ALL CAPACITANCE VALUES ARE IN MICROFARADS. 3. ALL CRYSTALS & OSCILLATOR VALUES ARE IN HERTZ. M78-DVT REV ZONE ECN ENG APPD DESCRIPTION OF CHANGE DATE 33 503047 ENGINEERING RELEASED


    Original     		PDF M78-DVT d7810 L9141 MXM pinout U4900 J9002 K40 fet MARK G4 SOT363 Apple j9002 k50 apple ISL6269

    AES2501

    Abstract: ICS954305 TP960 C703 diode tp1332 VDD3310 TP950 33B3 diode DEBUG32 block diagram of intel 8254 chip
    Text: 4 3 2 1 SAMSUNG PROPRIETARY THIS DOCUMENT CONTAINS CONFIDENTIAL PROPRIETARY INFORMATION THAT IS SAMSUNG ELECTRONICS CO’S PROPERTY. DO NOT DISCLOSE TO OR DUPLICATE FOR OTHERS EXCEPT AS AUTHORIZED BY SAMSUNG. TABLE OF CONTENTS D FIRENZE-R C B CPU : Chip Set :


    Original     		PDF CONTROLLERP1311 TP1312 TP1313 TP1314 TP1251 TP1252 TP1253 TP1254 TP1255 TP1256 AES2501 ICS954305 TP960 C703 diode tp1332 VDD3310 TP950 33B3 diode DEBUG32 block diagram of intel 8254 chip

    DIODE 20B2

    Abstract: TP4213 TP2658 SHEET15 30B4 diode 37 TV samsung lcd Schematic circuit diagram TP5000 alviso-GM 30B4 BA92-03859A
    Text: SAMSUNG X06 GUO LEI ZHOU JUN DRAW Model Name : PBA Name : PCB Code : Dev. Step : Revision : T.R. Date : CPU : Chip Set : Remarks : CHEN TAO CHECK KEVIN LEE APPROVAL X06 BA92-03859A BA41-00529A MP 1.0 2005-6-25 Dothan Intel Alviso + ICH6-M Internal Gfx. Aquila-So


    Original     		PDF Sheet10. Sheet11. Sheet12. Sheet13. Sheet14. Sheet15. Sheet16. Sheet17. Sheet18. Sheet19. DIODE 20B2 TP4213 TP2658 SHEET15 30B4 diode 37 TV samsung lcd Schematic circuit diagram TP5000 alviso-GM 30B4 BA92-03859A

    schematic diagram TCON lcd samsung

    Abstract: T-CON BOARD samsung schematic diagram tcon samsung C319B samsung nc110 samsung T-CON Schematic T-CON Schematic samsung T-CON LCD samsung nc108 cs5845
    Text: 4 2 3 1 SAMSUNG PROPRIETARY THIS DOCUMENT CONTAINS CONFIDENTIAL PROPRIETARY INFORMATION THAT IS SAMSUNG ELECTRONICS CO’S PROPERTY. DO NOT DISCLOSE TO OR DUPLICATE FOR OTHERS EXCEPT AS AUTHORIZED BY SAMSUNG. Table of Contents Page. 1 Page. 2 Page. 3 Page. 4


    Original     		PDF 80PORT SW950 SW955 SW954 SW953 41-C4 PGB1010603NR schematic diagram TCON lcd samsung T-CON BOARD samsung schematic diagram tcon samsung C319B samsung nc110 samsung T-CON Schematic T-CON Schematic samsung T-CON LCD samsung nc108 cs5845

    samsung R530

    Abstract: TP5056 smd diode ae C535 30C4 20b1 diode smd diode ab11 b34 U-503 B5-17 R-5670 Socket AM2
    Text: 이 문서는 삼성전자의 기술 자산으로 승인자만이 사용할 수 있습니다. This Document can not be used without Samsung's authorization. 9. 회로도 9-1. External Graphic www.kythuatvitinh.com 9 - 1 4 3 2 1 SAMSUNG PROPRIETARY THIS DOCUMENT CONTAINS CONFIDENTIAL


    Original     		PDF bridge/IDE/AC97/SMBUS CONN-12P-FPC 100nF samsung R530 TP5056 smd diode ae C535 30C4 20b1 diode smd diode ab11 b34 U-503 B5-17 R-5670 Socket AM2