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PCA9544ABS

4-channel IC multiplexer with interrupt logic

DESCRIPTION ThePCA9544Aisa1-of-4bi-directionaltranslatingmultiplexer,controlledviatheI2C-bus.TheSCL/SDAupstreampairfansouttofourSCx/SDxdownstreampairs,orchannels.OnlyoneSCx/SDxchannelisselectedatatime,determinedbythecontentsoftheprogrammablecontrolregiste

PHIPhilips Semiconductors

飛利浦荷蘭皇家飛利浦

PHI

PCA9544ABS

4-channel I2C-bus multiplexer with interrupt logic

Generaldescription ThePCA9544Aisa1-of-4bidirectionaltranslatingmultiplexer,controlledviatheI2C-bus.TheSCL/SDAupstreampairfansouttofourSCx/SDxdownstreampairs,orchannels.OnlyoneSCx/SDxchannelisselectedatatime,determinedbythecontentsoftheprogrammablecontrol

ETC

ETC

PCA9544ABS

4-channel I2C-bus multiplexer with interrupt logic; 1-of-4 bidirectional translating multiplexer\nI2C-bus interface logic; compatible with SMBus\n4 active LOW interrupt inputs\nActive LOW interrupt output\n3 address pins allowing up to 8 devices on the I2C-bus\nChannel selection via I2C-bus\nPower-up with all multiplexer channels deselected\nLow Ron switches\nAllows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses\nNo glitch on power-up\nSupports hot insertion\nLow standby current\nOperating power supply voltage range of 2.3 V to 5.5 V\n5 V tolerant Inputs\n0 Hz to 400 kHz clock frequency\nESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101\nLatch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA\nThree packages offered: SO20, TSSOP20 and HVQFN20\n;

The PCA9544A is a 1-of-4 bidirectional translating multiplexer, controlled via the I2C-bus. The SCL/SDA upstream pair fans out to four SCx/SDx downstream pairs, or channels. Only one SCx/SDx channel is selected at a time, determined by the contents of the programmable control register. Four interrupt inputs, INT0 to INT3, one for each of the SCx/SDx downstream pairs, are provided. One interrupt output, INT, which acts as an AND of the four interrupt inputs, is provided.\nA power-on reset function puts the registers in their default state and initializes the I2C-bus state machine with no channels selected.\nThe pass gates of the multiplexer are constructed such that the VDD pin can be used to limit the maximum high voltage which will be passed by the PCA9544A. This allows the use of different bus voltages on each SCx/SDx pair, so that 1.8 V, 2.5 V or 3.3 V parts can communicate with 5 V parts without any additional protection. External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 5 V tolerant.\n

恩XP

恩XP

PCA9544ABS

4-channel I2C-bus multiplexer with interrupt logic

ETC

ETC

PCA9544ABS

4-channel I2C-bus multiplexer with interrupt logic

ETC

ETC

PCA9544ABS-T

4-channel I2C-bus multiplexer with interrupt logic

ETC

ETC

詳細(xì)參數(shù)

  • 型號:

    PCA9544ABS

  • 功能描述:

    多路器開關(guān) IC 4-CH I2C MUX W/INTERRUPT

  • RoHS:

  • 制造商:

    Texas Instruments

  • 通道數(shù)量:

    1

  • 開關(guān)數(shù)量:

    4

  • 開啟電阻(最大值):

    7 Ohms

  • 傳播延遲時間:

    0.25 ns

  • 工作電源電壓:

    2.3 V to 3.6 V

  • 最大工作溫度:

    + 85 C

  • 安裝風(fēng)格:

    SMD/SMT

  • 封裝/箱體:

    UQFN-16

供應(yīng)商型號品牌批號封裝庫存備注價(jià)格
恩XP
24+
HVQFN20
6524
原裝正品,現(xiàn)貨庫存,1小時內(nèi)發(fā)貨
詢價(jià)
恩XP
25+
HVQFN20
32360
NXP/恩智浦全新特價(jià)PCA9544ABS即刻詢購立享優(yōu)惠#長期有貨
詢價(jià)
PHI
2020+
HVQFN20
18600
百分百原裝正品 真實(shí)公司現(xiàn)貨庫存 本公司只做原裝 可
詢價(jià)
PHI
24+
HVQFN20
200
只做原廠渠道 可追溯貨源
詢價(jià)
恩XP
23+
N/A
12000
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力
詢價(jià)
恩XP
2024+
N/A
70000
柒號只做原裝 現(xiàn)貨價(jià)秒殺全網(wǎng)
詢價(jià)
恩XP
24+
N/A
18877
原廠可訂貨,技術(shù)支持,直接渠道??珊灡9┖贤?/div>
詢價(jià)
恩XP
17+
QFN
6200
100%原裝正品現(xiàn)貨
詢價(jià)
恩XP
2016+
HVQFN20
4330
公司只做原裝,假一罰十,可開17%增值稅發(fā)票!
詢價(jià)
恩XP
24+
QFN
5989
公司原廠原裝現(xiàn)貨假一罰十!特價(jià)出售!強(qiáng)勢庫存!
詢價(jià)
更多PCA9544ABS供應(yīng)商 更新時間2025-7-29 23:00:00