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PCA9544ABS中文資料恩XP數(shù)據(jù)手冊PDF規(guī)格書

PCA9544ABS
廠商型號

PCA9544ABS

功能描述

4-channel I2C-bus multiplexer with interrupt logic

文件大小

143.91 Kbytes

頁面數(shù)量

27

生產廠商 未知制造商
企業(yè)簡稱

恩XP

中文名稱

未知制造商

數(shù)據(jù)手冊

下載地址一下載地址二

更新時間

2025-7-25 23:00:00

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PCA9544ABS價格和庫存,歡迎聯(lián)系客服免費人工找貨

PCA9544ABS規(guī)格書詳情

General description

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.

A power-on reset function puts the registers in their default state and initializes the I2C-bus state machine with no channels selected.

The pass gates of the multiplexer are constructed such that the VDD pin can be used to limit the maximum high voltage which is 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.

Features and benefits

■ 1-of-4 bidirectional translating multiplexer

■ I2C-bus interface logic; compatible with SMBus

■ 4 active LOW interrupt inputs

■ Active LOW interrupt output

■ 3 address pins allowing up to 8 devices on the I2C-bus

■ Channel selection via I2C-bus

■ Power-up with all multiplexer channels deselected

■ Low Ron switches

■ Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses

■ No glitch on power-up

■ Supports hot insertion

■ Low standby current

■ Operating power supply voltage range of 2.3 V to 5.5 V

■ 5 V tolerant Inputs

■ 0 Hz to 400 kHz clock frequency

■ ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101

■ Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA

■ Three packages offered: SO20, TSSOP20 and HVQFN20

產品屬性

  • 型號:

    PCA9544ABS

  • 功能描述:

    多路器開關 IC 4-CH I2C MUX W/INTERRUPT

  • RoHS:

  • 制造商:

    Texas Instruments

  • 通道數(shù)量:

    1

  • 開關數(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

  • 安裝風格:

    SMD/SMT

  • 封裝/箱體:

    UQFN-16

供應商 型號 品牌 批號 封裝 庫存 備注 價格
恩XP
24+
HVQFN20
6524
原裝正品,現(xiàn)貨庫存,1小時內發(fā)貨
詢價
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
恩XP
24+
NA
6000
全新原裝正品現(xiàn)貨 假一賠佰
詢價
恩XP
24+
QFN
990000
明嘉萊只做原裝正品現(xiàn)貨
詢價
恩XP
1950+
QFN
4856
只做原裝正品現(xiàn)貨!或訂貨假一賠十!
詢價
恩XP
25+
HVQFN20
32360
NXP/恩智浦全新特價PCA9544ABS即刻詢購立享優(yōu)惠#長期有貨
詢價
恩XP
23+
NA
20094
正納10年以上分銷經驗原裝進口正品做服務做口碑有支持
詢價
恩XP
22+
NA
5000
原裝正品支持實單
詢價
PHI
22+
HVQFN20
12245
現(xiàn)貨,原廠原裝假一罰十!
詢價
恩XP
24+
QFN
2659
原裝正品!公司現(xiàn)貨!歡迎來電洽談!
詢價