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TCA4307DRGR中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

TCA4307DRGR
廠商型號

TCA4307DRGR

功能描述

TCA4307 Hot Swappable I2C Bus and SMBus Buffer with Stuck Bus Recovery

絲印標(biāo)識

4307

封裝外殼

SON

文件大小

1.20492 Mbytes

頁面數(shù)量

29

生產(chǎn)廠商 Texas Instruments
企業(yè)簡稱

TI1德州儀器

中文名稱

德州儀器官網(wǎng)

原廠標(biāo)識
數(shù)據(jù)手冊

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更新時(shí)間

2025-5-4 17:10:00

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TCA4307DRGR規(guī)格書詳情

1 Features

? Supports bidirectional data transfer of I2C bus

signals

? Operating power-supply voltage range of 2.3 V to

5.5 V

? TA ambient air temperature range of

-40 °C to 125 °C

? Stuck bus recovery featuring automatic bus

recovery

? 1-V Precharge on all SDA and SCL lines prevents

corruption during live insertion

? Accommodates standard mode and fast mode I2C

devices

? Supports clock stretching, arbitration and

synchronization

? Powered-off high-impedance I2C pins

2 Applications

? Servers

? Enterprise Switching

? Telecom switching equipment

? Base stations

? Industrial automation equipment

3 Description

The TCA4307 is a hot-swappable I2C bus buffer

that supports I/O card insertion into a live backplane

without corruption of the data and clock lines. Control

circuitry prevents the backplane-side I2C lines (in)

from being connected to the card-side I2C lines (out)

until a stop command or bus idle condition occurs

on the backplane without bus contention on the card.

When the connection is made, this device provides

bidirectional buffering, keeping the backplane and

card capacitance isolated. During insertion, the SDA

and SCL lines are pre-charged to 1 V to minimize the

current required to charge the parasitic capacitance of

the device.

The TCA4307 has stuck bus recovery, which

automatically disconnects the bus if it detects either

SDAOUT or SCLOUT are low for about 40 ms. Once

the bus is disconnected, the device automatically

generates up to 16 pulses on SCLOUT to attempt to

reset the device which is holding the bus low.

When the I2C bus is idle, the TCA4307 can be put into

shutdown mode by setting the EN pin low, reducing

power consumption. When EN is pulled high, the

TCA4307 resumes normal operation. It also includes

an open drain READY output pin, which indicates that

the backplane and card sides are connected together.

When READY is high, the SDAIN and SCLIN are

connected to SDAOUT and SCLOUT. When the two

sides are disconnected, READY is low.

供應(yīng)商 型號 品牌 批號 封裝 庫存 備注 價(jià)格
TI
23+
MSOP8
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原裝現(xiàn)貨假一賠十
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正規(guī)渠道,只有原裝!
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23+
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原裝正品代理渠道價(jià)格優(yōu)勢
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23+/24+
8-WFDFN
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只供原裝進(jìn)口公司現(xiàn)貨+可訂貨
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24+
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80000
只做自己庫存,全新原裝進(jìn)口正品假一賠百,可開13%增
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TI/德州儀器
24+
VSSOP-8
25500
授權(quán)代理直銷,原廠原裝現(xiàn)貨,假一罰十,特價(jià)銷售
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TI
23+
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5000
全新原裝,支持實(shí)單,非誠勿擾
詢價(jià)
TI
1706+
VSSOP8
9100
只做原裝進(jìn)口,假一罰十
詢價(jià)
TI
23+
MSOP
3200
公司只做原裝,可來電咨詢
詢價(jià)
TI
22+
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500000
萬三科技,秉承原裝,購芯無憂
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