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    PCA9557D Search Results

    PCA9557D Result Highlights (5)

    Part ECAD Model Manufacturer Description Download Buy
    PCA9557DB Texas Instruments Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SSOP -40 to 85 Visit Texas Instruments Buy
    PCA9557D Texas Instruments Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SOIC -40 to 85 Visit Texas Instruments Buy
    PCA9557DT Texas Instruments Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SOIC -40 to 85 Visit Texas Instruments Buy
    PCA9557DR Texas Instruments Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SOIC -40 to 85 Visit Texas Instruments Buy
    PCA9557DGVR Texas Instruments Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-TVSOP -40 to 85 Visit Texas Instruments Buy
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    PCA9557D Price and Stock

    NXP Semiconductors PCA9557D,118

    IC XPNDR 400KHZ I2C SMBUS 16SO
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PCA9557D,118 Cut Tape 5,408 1
    • 1 $1.61
    • 10 $1.177
    • 100 $0.9507
    • 1000 $0.83189
    • 10000 $0.83189
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    PCA9557D,118 Digi-Reel 5,408 1
    • 1 $1.61
    • 10 $1.177
    • 100 $0.9507
    • 1000 $0.83189
    • 10000 $0.83189
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    PCA9557D,118 Reel 5,000 2,500
    • 1 -
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    • 10000 $0.80224
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    Mouser Electronics PCA9557D,118 1,594
    • 1 $1.61
    • 10 $1.07
    • 100 $0.951
    • 1000 $0.832
    • 10000 $0.761
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    Newark PCA9557D,118 Cut Tape 2,500 1
    • 1 $1.35
    • 10 $1.16
    • 100 $0.881
    • 1000 $0.675
    • 10000 $0.675
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    PCA9557D,118 Reel 2,500
    • 1 $0.966
    • 10 $0.966
    • 100 $0.966
    • 1000 $0.966
    • 10000 $0.863
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    PCA9557D,118 Cut Tape 2,500
    • 1 -
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    • 1000 $1
    • 10000 $1
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    Rochester Electronics PCA9557D,118 330 1
    • 1 $0.7985
    • 10 $0.7985
    • 100 $0.7506
    • 1000 $0.6787
    • 10000 $0.6787
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    NXP Semiconductors PCA9557D,118 Reel 2,480 99 Weeks
    • 1 $0.77
    • 10 $0.77
    • 100 $0.77
    • 1000 $0.77
    • 10000 $0.77
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    Avnet Silica PCA9557D,118 54 Weeks 2,500
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    EBV Elektronik PCA9557D,118 54 Weeks 2,500
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    Texas Instruments PCA9557DR

    IC XPNDR 400KHZ I2C SMBUS 16SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PCA9557DR Cut Tape 1,196 1
    • 1 $1.44
    • 10 $1.047
    • 100 $0.8425
    • 1000 $0.73519
    • 10000 $0.73519
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    PCA9557DR Digi-Reel 1,196 1
    • 1 $1.44
    • 10 $1.047
    • 100 $0.8425
    • 1000 $0.73519
    • 10000 $0.73519
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    Mouser Electronics PCA9557DR 1,539
    • 1 $1.44
    • 10 $0.95
    • 100 $0.843
    • 1000 $0.736
    • 10000 $0.652
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    TME PCA9557DR 244 1
    • 1 $2.29
    • 10 $1.77
    • 100 $1.21
    • 1000 $0.95
    • 10000 $0.95
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    Ameya Holding Limited PCA9557DR 101,364
    • 1 -
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    Texas Instruments PCA9557DB

    IC XPNDR 400KHZ I2C SMBUS 16SSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PCA9557DB Tube 1,167 1
    • 1 $1.87
    • 10 $1.379
    • 100 $1.87
    • 1000 $1.00952
    • 10000 $0.98137
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    Mouser Electronics PCA9557DB 438
    • 1 $1.87
    • 10 $1.38
    • 100 $1.08
    • 1000 $1
    • 10000 $0.951
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    Rochester Electronics PCA9557DB 28,189 1
    • 1 $0.9486
    • 10 $0.9486
    • 100 $0.8917
    • 1000 $0.8063
    • 10000 $0.8063
    Buy Now

    Texas Instruments PCA9557DBR

    IC XPNDR 400KHZ I2C SMBUS 16SSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PCA9557DBR Cut Tape 1,129 1
    • 1 $1.44
    • 10 $1.047
    • 100 $0.8425
    • 1000 $0.73519
    • 10000 $0.73519
    Buy Now
    PCA9557DBR Digi-Reel 1,129 1
    • 1 $1.44
    • 10 $1.047
    • 100 $0.8425
    • 1000 $0.73519
    • 10000 $0.73519
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    Mouser Electronics PCA9557DBR 1,363
    • 1 $1.44
    • 10 $0.95
    • 100 $0.843
    • 1000 $0.736
    • 10000 $0.669
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    Rochester Electronics PCA9557DBR 59,544 1
    • 1 $0.7028
    • 10 $0.7028
    • 100 $0.6606
    • 1000 $0.5974
    • 10000 $0.5974
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    Texas Instruments PCA9557DT

    IC XPNDR 400KHZ I2C SMBUS 16SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PCA9557DT Digi-Reel 495 1
    • 1 $1.87
    • 10 $1.379
    • 100 $1.1193
    • 1000 $1.1193
    • 10000 $1.1193
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    PCA9557DT Cut Tape 495 1
    • 1 $1.87
    • 10 $1.379
    • 100 $1.1193
    • 1000 $1.1193
    • 10000 $1.1193
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    PCA9557DT Reel 250 250
    • 1 -
    • 10 -
    • 100 -
    • 1000 $1.05436
    • 10000 $0.92271
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    Bristol Electronics PCA9557DT 209
    • 1 -
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    Quest Components PCA9557DT 167
    • 1 $2.128
    • 10 $2.128
    • 100 $1.1704
    • 1000 $1.064
    • 10000 $1.064
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    Rochester Electronics PCA9557DT 250 1
    • 1 $0.9488
    • 10 $0.9488
    • 100 $0.8919
    • 1000 $0.8065
    • 10000 $0.8065
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    PCA9557D Datasheets (58)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    PCA9557D NXP Semiconductors Convenient parallel I/O expansion or collection via the I2C/SMBus; NXP Octal SMBus registered interface PCA9557 Original PDF
    PCA9557D NXP Semiconductors 8-bit I2C-bus and SMBus I/O port with reset Original PDF
    PCA9557D NXP Semiconductors Convenient parallel I/O expansion or collection via the I2C/SMBus Original PDF
    PCA9557D Philips Semiconductors 8-bit I2C and SMBus I/0 port with reset Original PDF
    PCA9557D Philips Semiconductors 8-bit I 2 C and SMBus I/O port with reset Original PDF
    PCA9557D Texas Instruments Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SOIC -40 to 85 Original PDF
    PCA9557D Texas Instruments Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers Original PDF
    PCA9557D Texas Instruments Interface - I/O Expanders, Integrated Circuits (ICs), IC I/O EXPANDER I2C 8B 16SOIC Original PDF
    PCA9557D Texas Instruments PCA9557 - Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SOIC -40 to 85 Original PDF
    PCA9557D,112 NXP Semiconductors 8-bit I2C-bus and SMBus I/O port with reset - # of Addresses: 8 ; I2C-bus: 400 kHz; Max Sink Current per bit: 25 mA; Max Sink Current, per package: 100 mA; Number of bits: 8 ; Operating temperature: -40~85 Cel; Operating voltage: 2.3~5.5 VDC; Reset input pin: yes ; Source Current per bit: 10 mA; Package: SOT109-1 (SO16); Container: Tube Original PDF
    PCA9557D,112 NXP Semiconductors Interface - I/O Expanders, Integrated Circuits (ICs), IC I/O EXPANDER I2C 8B 16SOIC Original PDF
    PCA9557D,118 NXP Semiconductors 8-bit I2C-bus and SMBus I/O port with reset - # of Addresses: 8 ; I2C-bus: 400 kHz; Max Sink Current per bit: 25 mA; Max Sink Current, per package: 100 mA; Number of bits: 8 ; Operating temperature: -40~85 Cel; Operating voltage: 2.3~5.5 VDC; Reset input pin: yes ; Source Current per bit: 10 mA; Package: SOT109-1 (SO16); Container: Reel Pack, SMD, 13" Original PDF
    PCA9557D,118 NXP Semiconductors Interface - I/O Expanders, Integrated Circuits (ICs), IC I/O EXPANDER I2C 8B 16SOIC Original PDF
    PCA9557DB Texas Instruments Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers Original PDF
    PCA9557DB Texas Instruments Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SSOP -40 to 85 Original PDF
    PCA9557DB Texas Instruments Interface - I/O Expanders, Integrated Circuits (ICs), IC I/O EXPANDER I2C 8B 16SSOP Original PDF
    PCA9557DB Texas Instruments PCA9557 - Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SSOP -40 to 85 Original PDF
    PCA9557DBG4 Texas Instruments Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SSOP -40 to 85 Original PDF
    PCA9557DBG4 Texas Instruments Interface - I/O Expanders, Integrated Circuits (ICs), IC I/O EXPANDER I2C 8B 16SSOP Original PDF
    PCA9557DBG4 Texas Instruments PCA9557 - Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SSOP -40 to 85 Original PDF

    PCA9557D Datasheets Context Search

    Catalog Datasheet MFG & Type Document Tags PDF

    PCA9555

    Abstract: AN469 PCA9536 PCF8574TS-T PCA9539D-T 24c02 eeprom smbus PCA9534 PCA9535 PCA95xx PCA9538
    Text: AN469 I2C/SMBus general purpose I/O expanders Rev. 02 — 20 January 2005 Application note Document information Info Content Keywords I2C-bus, I/O expander, GPIO, EEPROM Abstract One of the more common functions of the I2C-bus is to provide additional I/O port capability for a controller without increasing the number of pins on


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    AN469 PCA9555 AN469 PCA9536 PCF8574TS-T PCA9539D-T 24c02 eeprom smbus PCA9534 PCA9535 PCA95xx PCA9538 PDF

    Untitled

    Abstract: No abstract text available
    Text: PCA9557 www.ti.com. SCPS133I – DECEMBER 2005 – REVISED JUNE 2008 REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER


    Original
    PCA9557 SCPS133I 000-V A114-A) PDF

    A115-A

    Abstract: C101 PCA9556 PCA9557 PCA9557RGVR
    Text: PCA9557 www.ti.com. SCPS133I – DECEMBER 2005 – REVISED JUNE 2008 REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER


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    PCA9557 SCPS133I 000-V A114-A) A115-A C101 PCA9556 PCA9557 PCA9557RGVR PDF

    RTL8211E

    Abstract: ISL6258A 88E1116R Marvell 88E1116R ISL6258 RTL8211 L6703 u9701 MCP79-B01 Q7055
    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. REV SCHEM,MBP 15"MLB ZONE ECN ENG APPD DESCRIPTION OF CHANGE DATE ? ? ? ? DATE ?


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    ISL10 ISL11 RTL8211E ISL6258A 88E1116R Marvell 88E1116R ISL6258 RTL8211 L6703 u9701 MCP79-B01 Q7055 PDF

    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


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    PDF

    ISL6259

    Abstract: transistor C3229 ISL6258AHRTZ transistor c6074 ISL9504BCRZ of transistor c2570 transistor c3300 c3228 transistor transistor c3150 c2570 transistor
    Text: 8 7 6 5 4 3 2 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. 1 REV ECN DESCRIPTION OF REVISION C 0000813234 CK APPD DATE PRODUCTION RELEASED 2009-11-01


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    PDF

    AN10160

    Abstract: philips master replacement guide IC 24c08 dell MTBF 87C51MX semiconductors master replacement guide 8051 using I2C BUS PCA9564 AN10148 pcf 9515 24C08 code example assembly
    Text: Interface Products Business Line Specialty Logic Product Line I2C Logic Family Overview 3Q 2004 Introduction Introduction Semiconductors 2 How the I2C Bus Works The I2C Inter-Integrated Circuit Bus is a two-wire, low to medium speed, communication bus (a path for electronic signals) developed by Philips Semiconductors in the early


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    1980s. GTL2010PW, P82B96TD, PCA9551D, PCA9545D, PCA9555D, PCA9557D, PCA9515D PCA9501D AN10160 philips master replacement guide IC 24c08 dell MTBF 87C51MX semiconductors master replacement guide 8051 using I2C BUS PCA9564 AN10148 pcf 9515 24C08 code example assembly PDF

    PCF8593* app note

    Abstract: PCF8565 AN10148 8051 microcontroller LED dot matrix 8051 microcontroller LED dot matrix 8*8 PCF8814 P80C552 8*8 led dot MATRIX Driver i2c All nokia mobile ic code image PCA8565
    Text: I2C Overview 2H 2003 Agenda • What is I2C and why would you be interested in using the I2C bus? • What new I2C devices are there and what are the typical applications? • How are we going to help you design-in these devices? Semiconductors 2 Transmission Standards


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    RS-485 RS-423 RS-232 RS-422 P82B96 PCA9555D, PCA9557D, PCA9515D PCA9501D PCF8593* app note PCF8565 AN10148 8051 microcontroller LED dot matrix 8051 microcontroller LED dot matrix 8*8 PCF8814 P80C552 8*8 led dot MATRIX Driver i2c All nokia mobile ic code image PCA8565 PDF

    Untitled

    Abstract: No abstract text available
    Text: PCA9557 REMOTE 8-BIT AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS I2C www.ti.com SCPS133F – DECEMBER 2005 – REVISED FEBRUARY 2007 FEATURES • • • • • • • • • RGV PACKAGE TOP VIEW RESET P7 P6 P5 P4 P3 P2 14


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    PCA9557 SCPS133F 400-kHz PCA9556 PDF

    pd557

    Abstract: No abstract text available
    Text: PCA9557 REMOTE 8-BIT AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS I2C www.ti.com SCPS133H – DECEMBER 2005 – REVISED MARCH 2007 FEATURES • • • • • • • • • RGV PACKAGE TOP VIEW 14 13 12 11 10 9 RESET RGY PACKAGE


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    PCA9557 SCPS133H 400-kHz PCA9556 pd557 PDF

    Untitled

    Abstract: No abstract text available
    Text: PCA9557 www.ti.com. SCPS133I – DECEMBER 2005 – REVISED JUNE 2008 REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER


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    PCA9557 SCPS133I 400-kHz PCA9556 PDF

    Untitled

    Abstract: No abstract text available
    Text: PCA9557 8-bit I2C-bus and SMBus I/O port with reset Rev. 7 — 10 December 2013 Product data sheet 1. General description The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for SMBus and I2C-bus applications. The PCA9557 consists of an 8-bit input port register,


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    PCA9557 PCA9557 PCA9557â 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


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    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

    PD557

    Abstract: No abstract text available
    Text: PCA9557 REMOTE 8-BIT AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS I2C www.ti.com SCPS133G – DECEMBER 2005 – REVISED MARCH 2007 FEATURES • • • • • • • • • RGV PACKAGE TOP VIEW RESET P7 P6 P5 P4 P3 P2 14 13


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    PCA9557 SCPS133G 400-kHz PCA9556 PD557 PDF

    Untitled

    Abstract: No abstract text available
    Text: PCA9557 REMOTE 8-BIT AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS I2C www.ti.com SCPS133H – DECEMBER 2005 – REVISED MARCH 2007 FEATURES • • • • • • • • • RGV PACKAGE TOP VIEW 14 13 12 11 10 9 RESET RGY PACKAGE


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    PCA9557 SCPS133H 400-kHz PCA9556 PDF

    Untitled

    Abstract: No abstract text available
    Text: PCA9557 REMOTE 8-BIT AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS I2C www.ti.com SCPS133H – DECEMBER 2005 – REVISED MARCH 2007 FEATURES • • • • • • • • • RGV PACKAGE TOP VIEW 14 13 12 11 10 9 RESET RGY PACKAGE


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    PCA9557 SCPS133H 400-kHz PCA9556 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


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    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

    Untitled

    Abstract: No abstract text available
    Text: PCA9557 www.ti.com. SCPS133I – DECEMBER 2005 – REVISED JUNE 2008 REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER


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    PCA9557 SCPS133I 000-V A114-A) PDF

    A115-A

    Abstract: C101 PCA9556 PCA9557 PCA9557RGVR PCA9557RGYR PD557
    Text: PCA9557 REMOTE 8-BIT AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS I2C www.ti.com SCPS133A – DECEMBER 2005 – REVISED JANUARY 2006 FEATURES RGV PACKAGE TOP VIEW 14 4 13 5 12 6 11 7 10 8 9 16 15 14 13 12 P7 A1 2 11 P6 A2 3 10 P5


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    PCA9557 SCPS133A A115-A C101 PCA9556 PCA9557 PCA9557RGVR PCA9557RGYR PD557 PDF

    Untitled

    Abstract: No abstract text available
    Text: PCA9557 REMOTE 8-BIT AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS I2C www.ti.com SCPS133A – DECEMBER 2005 – REVISED JANUARY 2006 FEATURES RGV PACKAGE TOP VIEW 14 4 13 5 12 6 11 7 10 8 9 16 15 14 13 12 P7 A1 2 11 P6 A2 3 10 P5


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    PCA9557 SCPS133A 400-kHz PCA9556 PDF

    Untitled

    Abstract: No abstract text available
    Text: PCA9557 www.ti.com. SCPS133I – DECEMBER 2005 – REVISED JUNE 2008 REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER


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    PCA9557 SCPS133I 000-V A114-A) PDF

    Untitled

    Abstract: No abstract text available
    Text: INTEGRATED CIRCUITS PCA9557 Octal SMBus and I2C registered interface Preliminary data Philips Semiconductors 2001 Aug 17 Philips Semiconductors Preliminary data Octal SMBus and I2C registered interface PCA9557 The power-on reset puts the registers in their default state and


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    PCA9557 PCA9557 PCA9556 PDF

    A115-A

    Abstract: C101 PCA9556 PCA9557 PCA9557RGVR
    Text: PCA9557 www.ti.com. SCPS133I – DECEMBER 2005 – REVISED JUNE 2008 REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER


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    PCA9557 SCPS133I 000-V A114-A) A115-A C101 PCA9556 PCA9557 PCA9557RGVR PDF

    Untitled

    Abstract: No abstract text available
    Text: PCA9557 REMOTE 8-BIT AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS I2C www.ti.com SCPS133H – DECEMBER 2005 – REVISED MARCH 2007 FEATURES • • • • • • • • • RGV PACKAGE TOP VIEW 14 13 12 11 10 9 RESET RGY PACKAGE


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    PCA9557 SCPS133H 400-kHz PCA9556 PDF