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

    SN74AHC574 Search Results

    SN74AHC574 Result Highlights (5)

    Part ECAD Model Manufacturer Description Download Buy
    SN74AHC574DBR
    Texas Instruments Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs 20-SSOP -40 to 125 Visit Texas Instruments Buy
    SN74AHC574DWRE4
    Texas Instruments Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs 20-SOIC -40 to 125 Visit Texas Instruments Buy
    SN74AHC574NSR
    Texas Instruments Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs 20-SO -40 to 125 Visit Texas Instruments Buy
    SN74AHC574DWR
    Texas Instruments Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs 20-SOIC -40 to 125 Visit Texas Instruments Buy
    SN74AHC574DGVR
    Texas Instruments Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs 20-TVSOP -40 to 125 Visit Texas Instruments Buy

    SN74AHC574 Datasheets (82)

    Part ECAD Model Manufacturer Description Datasheet Type PDF PDF Size Page count
    SN74AHC574
    Texas Instruments OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS Original PDF 112.64KB 8
    SN74AHC574
    Texas Instruments OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS Original PDF 211.38KB 9
    SN74AHC574DB
    Texas Instruments OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS Original PDF 112.64KB 8
    SN74AHC574DBLE
    Texas Instruments OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS Original PDF 112.64KB 8
    SN74AHC574DBLE
    Texas Instruments Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs 20-SSOP -40 to 85 Original PDF 755.47KB 20
    SN74AHC574DBLE
    Texas Instruments SN74AHC574 - Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs 20-SSOP -40 to 85 Original PDF 1.23MB 23
    SN74AHC574DBR
    Texas Instruments OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS Original PDF 112.64KB 8
    SN74AHC574DBR
    Texas Instruments Octal Edge-Triggered D-Type Flip-Flop with 3-State Outputs Original PDF 115.73KB 8
    SN74AHC574DBR
    Texas Instruments Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs 20-SSOP -40 to 85 Original PDF 755.47KB 20
    SN74AHC574DBR
    Texas Instruments SN74AHC574 - Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs 20-SSOP -40 to 85 Original PDF 1.23MB 23
    SN74AHC574DBRE4
    Texas Instruments Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs Original PDF 590.12KB 18
    SN74AHC574DBRE4
    Texas Instruments Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs 20-SSOP -40 to 85 Original PDF 755.47KB 20
    SN74AHC574DBRE4
    Texas Instruments SN74AHC574 - Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs 20-SSOP -40 to 85 Original PDF 1.23MB 23
    SN74AHC574DBRG4
    Texas Instruments Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs 20-SSOP -40 to 85 Original PDF 755.47KB 20
    SN74AHC574DBRG4
    Texas Instruments SN74AHC574 - Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs 20-SSOP -40 to 85 Original PDF 1.23MB 23
    SN74AHC574DGV
    Texas Instruments OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS Original PDF 112.64KB 8
    SN74AHC574DGV
    Texas Instruments SN74AHC574 - IC AHC SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20, TVSOP-20, Bus Driver/Transceiver Original PDF 1.23MB 23
    SN74AHC574DGVR
    Texas Instruments OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS Original PDF 112.64KB 8
    SN74AHC574DGVR
    Texas Instruments Octal Edge-Triggered D-Type Flip-Flop with 3-State Outputs Original PDF 115.73KB 8
    SN74AHC574DGVR
    Texas Instruments Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs 20-TVSOP -40 to 85 Original PDF 755.47KB 20
    SF Impression Pixel

    SN74AHC574 Price and Stock

    Texas Instruments

    Texas Instruments SN74AHC574DWR

    Flip Flops Tri-State Octal A 59 5-SN74AHC574DW A 595-SN74AHC574DW
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Mouser Electronics () SN74AHC574DWR 3,465
    • 1 $1.40
    • 10 $0.88
    • 100 $0.60
    • 1000 $0.43
    • 10000 $0.35
    Buy Now
    SN74AHC574DWR 3,465
    • 1 $0.79
    • 10 $0.56
    • 100 $0.45
    • 1000 $0.37
    • 10000 $0.35
    Buy Now

    Texas Instruments SN74AHC574NSR

    Flip Flops Octal Edge-Trig D-Ty F-F W/3-State Otpt
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Mouser Electronics () SN74AHC574NSR 2,116
    • 1 $0.89
    • 10 $0.64
    • 100 $0.51
    • 1000 $0.42
    • 10000 $0.40
    Buy Now
    SN74AHC574NSR 2,116
    • 1 $0.89
    • 10 $0.64
    • 100 $0.51
    • 1000 $0.42
    • 10000 $0.40
    Buy Now

    Texas Instruments SN74AHC574DBR

    Flip Flops Tri-State Octal
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Mouser Electronics () SN74AHC574DBR 1,978
    • 1 $0.43
    • 10 $0.30
    • 100 $0.23
    • 1000 $0.19
    • 10000 $0.17
    Buy Now
    SN74AHC574DBR 1,378
    • 1 $0.43
    • 10 $0.30
    • 100 $0.23
    • 1000 $0.19
    • 10000 $0.17
    Buy Now
    Verical () SN74AHC574DBR 4,000 1,718
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.19
    Buy Now
    SN74AHC574DBR 4,000 1,718
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.19
    Buy Now
    Quest Components SN74AHC574DBR 250
    • 1 $0.28
    • 10 $0.28
    • 100 $0.19
    • 1000 $0.19
    • 10000 $0.19
    Buy Now

    Texas Instruments SN74AHC574DWRE4

    Flip Flops Octal Edge-Trig D-Ty F-F W/3-State Otpt ALT 595-SN74AHC574DWR
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Mouser Electronics () SN74AHC574DWRE4 1,760
    • 1 $1.37
    • 10 $0.84
    • 100 $0.53
    • 1000 $0.36
    • 10000 $0.27
    Buy Now
    SN74AHC574DWRE4 1,760
    • 1 $1.37
    • 10 $0.84
    • 100 $0.53
    • 1000 $0.36
    • 10000 $0.27
    Buy Now

    Texas Instruments SN74AHC574DGVR

    Flip Flops Octal Edge-Trig D-Ty F-F W/3-State Otpt
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Mouser Electronics () SN74AHC574DGVR 1,757
    • 1 $0.55
    • 10 $0.39
    • 100 $0.30
    • 1000 $0.25
    • 10000 $0.23
    Buy Now
    SN74AHC574DGVR 1,757
    • 1 $1.17
    • 10 $0.72
    • 100 $0.46
    • 1000 $0.31
    • 10000 $0.23
    Buy Now

    SN74AHC574 Datasheets Context Search

    Catalog Datasheet Type Document Tags PDF

    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244F – OCTOBER 1995 – REVISED NOVEMBER 1999 D D 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds 2000 V Per


    Original
    SN54AHC574, SN74AHC574 SCLS244F MIL-STD-883, SN54AHC574 SN74AHC574 PDF

    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 PDF

    u723

    Abstract: AHC574 SN54AHC574 SN74AHC574
    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SC LS244B - O C TO BER 1995 - R E VIS ED APRIL 1996 SN54AHC574 . . . J OR W PACKAGE SN74AHC574 . . . DB, DW, N, OR PW PACKAGE TOP VIEW • Operating Range 2-V to 5.5-V V qq


    OCR Scan
    SN54AHC574, SN74AHC574 SCLS244B JESD-17 MIL-STD-883C, 300-mil AHC574 4040140/B MS-004 CEBOX655303â u723 SN54AHC574 SN74AHC574 PDF

    AHC574

    Abstract: SCEA029
    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244H – OCTOBER 1995 – REVISED MARCH 2002 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17


    Original
    SN54AHC574, SN74AHC574 SCLS244H 000-V A114-A) A115-A) SN54AHC574 SN74AHC574 AHC574 SCEA029 PDF

    HA574

    Abstract: AHC574 A115-A C101 SN54AHC574 SN74AHC574 marking ha574
    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244H – OCTOBER 1995 – REVISED MARCH 2002 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17


    Original
    SN54AHC574, SN74AHC574 SCLS244H 000-V A114-A) A115-A) SN54AHC574 HA574 AHC574 A115-A C101 SN54AHC574 SN74AHC574 marking ha574 PDF

    AHC574

    Abstract: SN54AHC574 SN74AHC574
    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244G – OCTOBER 1995 – REVISED JANUARY 2000 D D 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds 2000 V Per


    Original
    SN54AHC574, SN74AHC574 SCLS244G MIL-STD-883, SN54AHC574 AHC574 SN54AHC574 SN74AHC574 PDF

    AHC574

    Abstract: SN54AHC574 SN74AHC574
    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244B – OCTOBER 1995 – REVISED APRIL 1996 D D D SN54AHC574 . . . J OR W PACKAGE SN74AHC574 . . . DB, DW, N, OR PW PACKAGE TOP VIEW Operating Range 2-V to 5.5-V VCC


    Original
    SN54AHC574, SN74AHC574 SCLS244B SN54AHC574 JESD-17 MIL-STD-883C, AHC574 SN54AHC574 SN74AHC574 PDF

    SN74AHC574PWR

    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 SN74AHC574 SN74AHC574PWR PDF

    SN74AHC574PWR

    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 SN74AHC574 SN74AHC574PWR PDF

    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 SN74AHC574 PDF

    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 PDF

    SN74AHC574PWR

    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 SN74AHC574 SN74AHC574PWR PDF

    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS _ SCLS244B - OCTOBER 1995 - REVISED APRIL 1996 Operating Range 2-V to 5.5-V Mc c SN54AHC574. . . J OR W PACKAGE SN74AHC574 . . . DB, DW, N, OR PW PACKAGE


    OCR Scan
    SN54AHC574, SN74AHC574 SCLS244B JESD-17 MIL-STD-883C, 300-mil SN54AHC574. SN74AHC 7626S PDF

    ha574

    Abstract: A115-A AHC574 C101 SN54AHC574 SN74AHC574
    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 ha574 A115-A AHC574 C101 SN54AHC574 SN74AHC574 PDF

    ha574

    Abstract: e41105 A115-A AHC574 C101 SN54AHC574 SN74AHC574
    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 ha574 e41105 A115-A AHC574 C101 SN54AHC574 SN74AHC574 PDF

    ha574

    Abstract: SN74AHC574PWR
    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 SN74AHC574 ha574 SN74AHC574PWR PDF

    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 SN74AHC574 PDF

    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 SN74AHC574 PDF

    ha574

    Abstract: A115-A AHC574 C101 SN54AHC574 SN74AHC574 SN74AHC574PWR
    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 ha574 A115-A AHC574 C101 SN54AHC574 SN74AHC574 SN74AHC574PWR PDF

    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 PDF

    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 SN74AHC574 PDF

    ahc574

    Abstract: HA574 SN74AHC574PWR
    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 SN74AHC574 ahc574 HA574 SN74AHC574PWR PDF

    HA574

    Abstract: A115-A AHC574 C101 SN54AHC574 SN74AHC574
    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 HA574 A115-A AHC574 C101 SN54AHC574 SN74AHC574 PDF

    SN74AHC574PWR

    Contextual Info: SN54AHC574, SN74AHC574 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS244I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22


    Original
    SN54AHC574, SN74AHC574 SCLS244I 000-V A114-A) A115-A) SN54AHC574 SN74AHC574 SN74AHC574PWR PDF