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PCA9541BS/01中文資料恩XP數(shù)據(jù)手冊PDF規(guī)格書

PCA9541BS/01
廠商型號

PCA9541BS/01

功能描述

2-to-1 I2C-bus master selector with interrupt logic and reset

文件大小

216.82 Kbytes

頁面數(shù)量

43

生產(chǎn)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

2025-7-29 8:24:00

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PCA9541BS/01規(guī)格書詳情

General description

The PCA9541 is a 2-to-1 I2C-bus master selector designed for high reliability dual master I2C-bus applications where system operation is required, even when one master fails or the controller card is removed for maintenance. The two masters (for example, primary and back-up) are located on separate I2C-buses that connect to the same downstream I2C-bus slave devices. I2C-bus commands are sent by either I2C-bus master and are used to select one master at a time. Either master at any time can gain control of the slave devices if the other master is disabled or removed from the system. The failed master is isolated from the system and will not affect communication between the on-line master and the slave devices on the downstream I2C-bus.

Features

■ 2-to-1 bidirectional master selector

■ I2C-bus interface logic; compatible with SMBus standards

■ PCA9541/01 powers up with Channel 0 selected

■ PCA9541/03 powers up with no channel selected and either master can take control of the bus

■ Active LOW interrupt input

■ 2 active LOW interrupt outputs

■ Active LOW reset input

■ 4 address pins allowing up to 16 devices on the I2C-bus

■ Channel selection via I2C-bus

■ Bus initialization/recovery function

■ Bus traffic sensor

■ 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

■ Software identical for both masters

■ Low standby current

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

■ 6.0 V tolerant inputs

■ 0 Hz to 400 kHz clock frequency

■ ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101

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

■ Packages offered: SO16, TSSOP16, HVQFN16

Applications

■ High reliability systems with dual masters

■ Gatekeeper multiplexer on long single bus

■ Bus initialization/recovery for slave devices without hardware reset

■ Allows masters without arbitration logic to share resources

供應(yīng)商 型號 品牌 批號 封裝 庫存 備注 價格
恩XP
2022+
原廠原包裝
8600
全新原裝 支持表配單 中國著名電子元器件獨立分銷
詢價
恩XP
24+
QFN
37935
鄭重承諾只做原裝進(jìn)口現(xiàn)貨
詢價
恩XP
24+
QFN
5070
全新原裝,價格優(yōu)勢,原廠原包
詢價
恩XP
24+
NA/
4615
優(yōu)勢代理渠道,原裝正品,可全系列訂貨開增值稅票
詢價
PHI
23+
QFN
20000
全新原裝假一賠十
詢價
PHI
24+
QFN
80000
只做自己庫存 全新原裝進(jìn)口正品假一賠百 可開13%增
詢價
恩XP
25+
QFN
32360
NXP/恩智浦全新特價PCA9541BS/01即刻詢購立享優(yōu)惠#長期有貨
詢價
PHI
17+
QFN
9700
只做全新進(jìn)口原裝,現(xiàn)貨庫存
詢價
PHI
2022
QFN
2300
原裝現(xiàn)貨,誠信經(jīng)營!
詢價
恩XP
23+
QFN
6000
專業(yè)配單保證原裝正品假一罰十
詢價