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

    74V1G66 Search Results

    74V1G66 Datasheets (15)

    Part ECAD Model Manufacturer Description Datasheet Type PDF PDF Size Page count
    74V1G66
    		STMicroelectronics SINGLE BILATERAL SWITCH Original PDF 140.58KB 11
    74V1G66
    		STMicroelectronics Single Bilateral Switch Original PDF 84.48KB 11
    74V1G66
    		STMicroelectronics SINGLE BILATERAL SWITCH Original PDF 68.11KB 9
    74V1G66CTR
    		STMicroelectronics Single bilateral switch Original PDF 344.75KB 15
    74V1G66CTR
    		STMicroelectronics SINGLE BILATERAL SWITCH Original PDF 84.48KB 11
    74V1G66CTR
    		STMicroelectronics Single Bilateral Switch Original PDF 231.36KB 11
    74V1G66CTR
    		STMicroelectronics Analog switch, Single SPST, 7V, TSOT, 5-Pin, Tape and Reel Original PDF 68.09KB 9
    74V1G66C-TR
    		STMicroelectronics SINGLE BILATERAL SWITCH Original PDF 68.1KB 9
    74V1G66C-TR
    		STMicroelectronics SINGLE BILATERAL SWITCH Original PDF 68.27KB 9
    74V1G66STR
    		STMicroelectronics Single bilateral switch Original PDF 344.75KB 15
    74V1G66STR
    		STMicroelectronics SINGLE BILATERAL SWITCH Original PDF 84.48KB 11
    74V1G66STR
    		STMicroelectronics Single Bilateral Switch Original PDF 231.36KB 11
    74V1G66STR
    		STMicroelectronics Analog switch, Single SPST, 7V, SOT-23, 5-Pin, Tape and Reel Original PDF 68.09KB 9
    74V1G66S-TR
    		STMicroelectronics SINGLE BILATERAL SWITCH Original PDF 68.1KB 9
    74V1G66S-TR
    		STMicroelectronics SINGLE BILATERAL SWITCH Original PDF 68.27KB 9
    SF Impression Pixel

    74V1G66 Price and Stock

    STMicroelectronics

    STMicroelectronics 74V1G66CTR

    IC SW SPST-NOX1 10OHM SOT323-5
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey 74V1G66CTR Reel 9,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.09
    		Buy Now
    Bristol Electronics 74V1G66CTR 2,773
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Quest Components () 74V1G66CTR 7,853
    • 1 $0.18
    • 10 $0.18
    • 100 $0.18
    • 1000 $0.18
    • 10000 $0.07
    		Buy Now
    74V1G66CTR 7,853
    • 1 $0.18
    • 10 $0.18
    • 100 $0.18
    • 1000 $0.18
    • 10000 $0.07
    		Buy Now
    74V1G66CTR 2,218
    • 1 $0.59
    • 10 $0.59
    • 100 $0.27
    • 1000 $0.18
    • 10000 $0.18
    		Buy Now
    74V1G66CTR 2,218
    • 1 $0.59
    • 10 $0.59
    • 100 $0.27
    • 1000 $0.18
    • 10000 $0.18
    		Buy Now
    ComSIT USA 74V1G66CTR 9,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Vyrian 74V1G66CTR 2,450
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote

    STMicroelectronics 74V1G66STR

    IC SWITCH SPST-NOX1 10OHM SOT23
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey 74V1G66STR Reel 15,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now
    Quest Components 74V1G66STR 4,800
    • 1 $0.96
    • 10 $0.96
    • 100 $0.96
    • 1000 $0.96
    • 10000 $0.17
    		Buy Now
    Vyrian 74V1G66STR 1,821
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote

    STMicroelectronics 74V1G66TR

    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Bristol Electronics 74V1G66TR 240
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote

    74V1G66 Datasheets Context Search

    Catalog Datasheet Type Document Tags PDF

    74V1G66

    Abstract: 74V1G66C-TR 74V1G66S-TR SC-70-5L
    Contextual Info: 74V1G66  SINGLE BILATERAL SWITCH • ■ ■ ■ ■ HIGH SPEED: tPD = 0.3 ns TYP. at VCC = 5V tPD = 0.4 ns (TYP.) at VCC = 3.3V LOW POWER DISSIPATION: ICC = 1 µA (MAX.) at TA = 25 oC LOW ”ON” RESISTANCE: RON = 10Ω (TYP.)AT VCC = 5.0V II/O=100µA


    Original     		74V1G66 74V1G66 74V1G66C-TR 74V1G66S-TR SC-70-5L PDF

    74V1G66CTR

    Abstract: 74V1G66 74V1G66STR SC-70-5L
    Contextual Info: 74V1G66 SINGLE BILATERAL SWITCH • ■ ■ ■ ■ ■ HIGH SPEED: tPD = 0.3ns TYP. at VCC = 5V tPD = 0.4ns (TYP.) at VCC = 3.3V LOW POWER DISSIPATION: ICC = 1µA(MAX.) at TA=25°C LOW ”ON” RESISTANCE: RON =6.5Ω (TYP.) AT VCC = 5V II/O = 1mA RON = 8.5Ω (TYP.) AT VCC = 3.3V II/O = 1mA


    Original     		74V1G66 74V1G66 74V1G66CTR 74V1G66STR SC-70-5L PDF

    SPDT SPI

    Abstract: TSSOP48 HTSSOP24 TRAY TSSOP20 14 X 35 STP16CPS05MTR Tray package so-16 QFN56 tray package STP16CP05 TSSOP16 74V1G66CTR
    Contextual Info: Advanced Logic ICs Selection guide June 2006 www.st.com/logic Digital and analog NEATSwitchTM Function Description ICC @ 5V max [µA] 74V1G66CTR 1 x SPDT Single bilateral switch 10 6.5 74V1T66CTR 1 x SPDT Single bilateral switch 10 6.5 74V2G66STR 2 x SPST


    Original     		74V1G66CTR 74V1T66CTR 74V2G66STR 74V2T66STR 74V1T384CTR 74V1G384CTR 74V2G384STR 74V2T384STR OT323-5L SPDT SPI TSSOP48 HTSSOP24 TRAY TSSOP20 14 X 35 STP16CPS05MTR Tray package so-16 QFN56 tray package STP16CP05 TSSOP16 74V1G66CTR PDF

    74V1G66

    Abstract: 74V1G66C-TR 74V1G66S-TR SC-70-5L
    Contextual Info: 74V1G66  SINGLE BILATERAL SWITCH • ■ ■ ■ ■ HIGH SPEED: tPD = 0.3 ns TYP. at VCC = 5V tPD = 0.4 ns (TYP.) at VCC = 3.3V LOW POWER DISSIPATION: ICC = 1 µA (MAX.) at TA = 25 oC LOW ”ON” RESISTANCE: RON = 7Ω (TYP.) AT VCC = 5.0V II/O=1mA


    Original     		74V1G66 74V1G66 74V1G66C-TR 74V1G66S-TR SC-70-5L PDF

    74V1G66

    Abstract: SC-70-5L 74V1G66STR 74V1G66CTR OUTPUT 3.3V PACKAGE SOT323
    Contextual Info: 74V1G66 SINGLE BILATERAL SWITCH • ■ ■ ■ ■ ■ HIGH SPEED: tPD = 0.3ns TYP. at VCC = 5V tPD = 0.4ns (TYP.) at VCC = 3.3V LOW POWER DISSIPATION: ICC = 1µA(MAX.) at TA=25°C LOW "ON" RESISTANCE: RON =6.5Ω (TYP.) AT VCC = 5V II/O = 1mA RON = 8.5Ω (TYP.) AT VCC = 3.3V II/O = 1mA


    Original     		74V1G66 74V1G66 SC-70-5L 74V1G66STR 74V1G66CTR OUTPUT 3.3V PACKAGE SOT323 PDF

    74V1G66

    Abstract: 74V1G66C-TR 74V1G66S-TR SC-70-5L
    Contextual Info: 74V1G66 SINGLE BILATERAL SWITCH • ■ ■ ■ ■ HIGH SPEED: tPD = 0.3 ns TYP. at VCC = 5V tPD = 0.4 ns (TYP.) at VCC = 3.3V LOW POWER DISSIPATION: ICC = 1 µA (MAX.) at TA = 25 oC LOW "ON" RESISTANCE: RON = 7Ω (TYP.) AT VCC = 5.0V II/O=1mA RON = 8.5Ω (TYP.) AT VCC = 3.3V II/O=1mA


    Original     		74V1G66 74V1G66 74V1G66C-TR 74V1G66S-TR SC-70-5L PDF

    74V1G66CTR

    Abstract: STMicroelectronics SOT23 DATE CODE 74V1G66 74V1G66STR JESD97 DSA00361784 SOT323-5L wave soldering
    Contextual Info: 74V1G66 Single bilateral switch Features • High speed: tPD = 0.3 ns typ. at VCC = 5 V tPD = 0.4 ns (typ.) at VCC = 3.3 V ■ Low power dissipation: ICC = 1 A (max.) at TA = 25 °C ■ Low "ON" resistance: RON = 6.5 Ω (typ.) at VCC = 5 V II/O = 1 mA


    Original     		74V1G66 OT23-5L OT323-5L 74V1G66 74V1G66CTR STMicroelectronics SOT23 DATE CODE 74V1G66STR JESD97 DSA00361784 SOT323-5L wave soldering PDF

    74V1G66

    Abstract: 74V1G66CTR 74V1G66STR SC-70-5L OUTPUT 3.3V PACKAGE SOT323
    Contextual Info: 74V1G66 SINGLE BILATERAL SWITCH • ■ ■ ■ ■ ■ HIGH SPEED: tPD = 0.3ns TYP. at V CC = 5V tPD = 0.4ns (TYP.) at V CC = 3.3V LOW POWER DISSIPATION: ICC = 1µA(MAX.) at TA=25°C LOW "ON" RESISTANCE: RON =6.5Ω (TYP.) AT VCC = 5V II/O = 1mA RON = 8.5Ω (TYP.) AT VCC = 3.3V I I/O = 1mA


    Original     		74V1G66 74V1G66 74V1G66CTR 74V1G66STR SC-70-5L OUTPUT 3.3V PACKAGE SOT323 PDF

    74V1G66

    Contextual Info: 74V1G66  SINGLE BILATERAL SWITCH • ■ ■ ■ ■ HIGH SPEED: tPD = 0.1 ns TYP. at VCC = 5V tPD = 0.4 ns (TYP.) at VCC = 3.3V LOW POWER DISSIPATION: ICC = 1 µA (MAX.) at TA = 25 oC LOW ”ON” RESISTANCE: RON = 10Ω (TYP.)AT VCC = 5.0V II/O=100µA


    Original     		74V1G66 OT23-5L OT23-5L SC-70 SC-70 74V1G66S-TR 74V1G66C-TR 74V1G66 PDF

    74V1G66

    Contextual Info: 74V1G66 Single bilateral switch Features • High speed: tPD = 0.3 ns typ. at VCC = 5 V tPD = 0.4 ns (typ.) at VCC = 3.3 V ■ Low power dissipation: ICC = 1 µA (max.) at TA = 25 °C ■ Low "ON" resistance: RON = 6.5 Ω (typ.) at VCC = 5 V II/O = 1 mA


    Original     		74V1G66 OT23-5L OT323-5L 74V1G66 PDF

    74V1G66

    Abstract: 74V1G66C-TR 74V1G66S-TR SC-70-5L
    Contextual Info: 74V1G66  SINGLE BILATERAL SWITCH • ■ ■ ■ ■ HIGH SPEED: tPD = 0.3 ns TYP. at VCC = 5V tPD = 0.4 ns (TYP.) at VCC = 3.3V LOW POWER DISSIPATION: ICC = 1 µA (MAX.) at TA = 25 oC LOW ”ON” RESISTANCE: RON = 7Ω (TYP.) AT VCC = 5.0V II/O=1mA


    Original     		74V1G66 74V1G66 74V1G66C-TR 74V1G66S-TR SC-70-5L PDF

    5555 FAIRCHILD optocoupler

    Abstract: MC74HC374N 74hc14n equivalent NC7S125M5 14069 HCF4541BEY APPLICATION HCF4013BE 4026 fairchild datasheet 14543 motorola Motorola DM74LS139N
    Contextual Info: R E L I A B L E . L O G I C . I N N O V A T I O N . Logic Cross-Reference Logic Cross-Reference 2003 Texas Instruments Printed in the U.S.A. by Texoma Business Forms, Durant, Oklahoma Printed on recycled paper. SCYB017A NEW First Revision Logic Cross-Reference


    Original     		SCYB017A A010203 5555 FAIRCHILD optocoupler MC74HC374N 74hc14n equivalent NC7S125M5 14069 HCF4541BEY APPLICATION HCF4013BE 4026 fairchild datasheet 14543 motorola Motorola DM74LS139N PDF

    VIPER22A EQUIVALENT

    Abstract: prepaid energy meter block diagram gsm using prepaid energy meter circuit diagram AN1642 VIPower 5V buck smps with VIPer12A toshiba crt colour tv kit circuit diagram tv crt charger diagram prepaid energy meter using smart card 1500 watt smps schematic SCHEMATIC DIAGRAM REVERSE KWH METER schematic diagram UPS 600 Power structure
    Contextual Info: PART 1 MICROS, LINEARS & DISCRETES 3. L6928D Step-down converter 4. L6382Dx 5. VIPer12A & VIPer22A For Lighting 6. SuperFREDMesh Power MOSFETs 7. Power MOSFETs In Linear Operation 8. Low Profile Power MOSFETs In I2SPAK 9. New 200V Power MOSFETs For µcontrolled ballasts


    Original     		L6928D L6382Dx VIPer12A VIPer22A STCCP27 STPM01 ST7538P 74VCXHQ163245 TSH310 VIPER22A EQUIVALENT prepaid energy meter block diagram gsm using prepaid energy meter circuit diagram AN1642 VIPower 5V buck smps with VIPer12A toshiba crt colour tv kit circuit diagram tv crt charger diagram prepaid energy meter using smart card 1500 watt smps schematic SCHEMATIC DIAGRAM REVERSE KWH METER schematic diagram UPS 600 Power structure 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
    Contextual Info: 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

    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
    Contextual Info: 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

    LD2985BM33R

    Abstract: ST3232 USBUF01W6 74V1G66CTR BYV10-60 GS-BT2416C1DB bluetooth le programming
    Contextual Info: UM0471 User manual Bluetooth class 1 evaluation boards using: GS-BT2416C1DB and GS-BT2416C1DBAT1 Introduction This user manual details the GS-BT2416C1DB.xxx which is a Bluetooth® class 1 evaluation board including an RF antenna. The suffix xxx identifies the firmware release. There is no


    Original     		UM0471 GS-BT2416C1DB GS-BT2416C1DBAT1 GS-BT2416C1DBAT1 LD2985BM33R ST3232 USBUF01W6 74V1G66CTR BYV10-60 bluetooth le programming PDF

    ST4G3234

    Abstract: bluetooth RS232 TTL TS4984 usb headset ic TS4962 TS4972 TS4985 TS4990 TS4994 TSSOP48
    Contextual Info: Data communication Power management Part number Dx/Rx Description ICC mA Data rate (Mbps) VCC (V) No. of CEXT (*) ST3222E ST3232 ST3232E ST3237 ST3237E ST3241E ST3243E STLVDS050 STLVDS051 STLVDS104 STLVDS105 STLVDS31 STLVDS32 STLVDS3486 STLVDS3487 STLVDS47


    Original     		RS232 RS232 FLWIRELESS0705 ST4G3234 bluetooth RS232 TTL TS4984 usb headset ic TS4962 TS4972 TS4985 TS4990 TS4994 TSSOP48 PDF

    TSSOP48

    Abstract: TSSOP64 SPDT SPI STP08CL596M TSSOP24 5V SPST RELAY 74V1G66CTR 74V1G66STR 74V1T384CTR 74V1T384STR
    Contextual Info: Surface mounting packages Advanced Logic ICs SOT23-8L SOT23-5L SOT323-5L Selection guide TSSOP16 TSSOP20 LFBGA96 TSSOP24 TFBGA54 SO-16 SO-20 TSSOP24 exposed-pad TSSOP48 µTFBGA42 QFN16 SO-24 TSSOP64 Flip-Chip5 SSOP24 Flip-Chip11 H (inch) W (tape width mm)


    Original     		OT23-8L OT23-5L OT323-5L TSSOP16 TSSOP20 LFBGA96 TSSOP24 TFBGA54 SO-16 SO-20 TSSOP48 TSSOP64 SPDT SPI STP08CL596M TSSOP24 5V SPST RELAY 74V1G66CTR 74V1G66STR 74V1T384CTR 74V1T384STR PDF

    12w sot23

    Abstract: equivalent ic st3232 mini audio amplifier 2w TSSOP16 ST2378E TS4984 TS4990 TS4994 TSM108 li-ion ic prot
    Contextual Info: Data communication Digital Part number Dx/Rx Description ICC mA ST3222E ST3232 ST3232E ST3237 ST3237E ST3241E ST3243E STLVDS050 STLVDS051 STLVDS104 STLVDS105 STLVDS31 STLVDS32 STLVDS3486 STLVDS3487 STLVDS47 ST2551E* ST2378E ST3378E* 2/2 2/2 2/2 5/3 5/3 3/5


    Original     		ST3222E ST3232 ST3232E ST3237 ST3237E ST3241E ST3243E STLVDS050 STLVDS051 STLVDS104 12w sot23 equivalent ic st3232 mini audio amplifier 2w TSSOP16 ST2378E TS4984 TS4990 TS4994 TSM108 li-ion ic prot PDF

    MC0628R

    Abstract: 40373 74hc14n equivalent 4046 application note philips HCF4060BE HCF4017BE SN74121 application note MC74HC373DW mc0628 HCF4053BE
    Contextual Info: R E L I A B L E . L O G I C . I N N O V A T I O N . Logic Cross-Reference Logic Cross-Reference 2003 Texas Instruments Printed in the U.S.A. by Texoma Business Forms, Durant, Oklahoma Printed on recycled paper. SCYB017A NEW First Revision Logic Cross-Reference


    Original     		SCYB017A T74ALVC32374 74CBTLV16211 SN74CBTD16211 SN74SSTV16859 SN74CBTLV16211GRDR SN74ALVC16245AGRDR -SN74SSTV16859GKER MC0628R 40373 74hc14n equivalent 4046 application note philips HCF4060BE HCF4017BE SN74121 application note MC74HC373DW mc0628 HCF4053BE PDF

    220v AC voltage stabilizer schematic diagram

    Abstract: LG color tv Circuit Diagram tda 9370 1000w inverter PURE SINE WAVE schematic diagram schematic diagram atx Power supply 500w TV SHARP IC TDA 9381 PS circuit diagram wireless spy camera 9744 mini mainboard v1.2 sony 279-87 transistor E 13005-2 superpro lx
    Contextual Info: QUICK INDEX NEW IN THIS ISSUE! Detailed Index - See Pages 3-24 AD9272 Analog Front End, iMEMS Accelerometers & Gyroscopes . . . . . . 782, 2583 Connectors, Cable Assemblies, IC Sockets . . . . . . . . . . . 28-528 Acceleration and Pressure Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2585


    Original     		AD9272 P462-ND LNG295LFCP2U P463-ND LNG395MFTP5U 220v AC voltage stabilizer schematic diagram LG color tv Circuit Diagram tda 9370 1000w inverter PURE SINE WAVE schematic diagram schematic diagram atx Power supply 500w TV SHARP IC TDA 9381 PS circuit diagram wireless spy camera 9744 mini mainboard v1.2 sony 279-87 transistor E 13005-2 superpro lx PDF

    74V1G66CTR

    Abstract: BYV10-60 GS-BT2416C1DB LD2985BM33R ST3232 USBUF01W6
    Contextual Info: UM0471 User manual Bluetooth class 1 evaluation boards using: GS-BT2416C1DB and GS-BT2416C1DBAT1 Introduction This user manual details the GS-BT2416C1DB.xxx which is a Bluetooth® class 1 evaluation board including an RF antenna. The suffix xxx identifies the firmware release. There is no


    Original     		UM0471 GS-BT2416C1DB GS-BT2416C1DBAT1 GS-BT2416C1DBAT1 74V1G66CTR BYV10-60 LD2985BM33R ST3232 USBUF01W6 PDF

    74V1G66CTR

    Abstract: GS-BT2416C2 LD2985BM33R ST3232 USBUF01W6 bluetooth usb at command
    Contextual Info: UM0472 User manual Bluetooth class 2 evaluation boards GS-BT2416C2DB and GS-BT2416C2DBAT1 Introduction This user manual details the GS-BT2416C2DB.xxx which is a Bluetooth Class 2 evaluation board for GS-BT2416C2.H and GS-BT2416C2.AT1 Bluetooth modules including an RF


    Original     		UM0472 GS-BT2416C2DB GS-BT2416C2DBAT1 GS-BT2416C2 GS-BT2416C2DBAT1 74V1G66CTR LD2985BM33R ST3232 USBUF01W6 bluetooth usb at command PDF

    B5S16862

    Abstract: QFN16 SPDT i2c 3v ST2042 ST2052 STG3157 stmux B5S162861 B5S162862 QFN56
    Contextual Info: NEATSwitchTM Miniature analog, digital and power switches July 2005 www.st.com/neatswitch Digital switch NEATSwitch digital switch products are superior replacements for mechanical relays in LAN applications. LAN switches offer low Ron, wide bandwidth and low differential crosstalk, making them ideal for 10 /100/1000 Base-T PHY LAN


    Original     		B5S16281/B5S162861 B5S16282/B5S162862 20-bit B5S162861 B5S16281 BRNEATS0705 B5S16862 QFN16 SPDT i2c 3v ST2042 ST2052 STG3157 stmux B5S162862 QFN56 PDF