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PCA9541BS/03中文資料恩XP數(shù)據(jù)手冊PDF規(guī)格書

PCA9541BS/03
廠商型號

PCA9541BS/03

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

原廠標識
數(shù)據(jù)手冊

下載地址一下載地址二

更新時間

2025-5-29 23:01:00

人工找貨

PCA9541BS/03價格和庫存,歡迎聯(lián)系客服免費人工找貨

PCA9541BS/03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

供應商 型號 品牌 批號 封裝 庫存 備注 價格
HILIPPINE
24+
NA/
6000
優(yōu)勢代理渠道,原裝正品,可全系列訂貨開增值稅票
詢價
恩XP
24+
NA/
7350
現(xiàn)貨供應,當天可交貨!免費送樣,原廠技術(shù)支持!!!
詢價
恩XP
24+
QFN
80000
只做自己庫存,全新原裝進口正品假一賠百,可開13%增
詢價
恩XP
24+
N/A
6000
原裝,正品
詢價
恩XP
22+
NA
2576
原裝正品支持實單
詢價
恩XP
2023+
QFN
6000
一級代理優(yōu)勢現(xiàn)貨,全新正品直營店
詢價
恩XP
25+
SOT629
188600
全新原廠原裝正品現(xiàn)貨 歡迎咨詢
詢價
恩XP
23+
NA
6000
原裝現(xiàn)貨訂貨價格優(yōu)勢
詢價
恩XP
1948+
QFN
6852
只做原裝正品現(xiàn)貨!或訂貨假一賠十!
詢價
N智浦
22+
NA
500000
萬三科技,秉承原裝,購芯無憂
詢價