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參數(shù)資料
| 型號： | LTC4305IDHD#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 1/20頁 |
| 文件大小： | 0K |
| 描述： | IC BUFFER BUS 2WR ADDRESS 16-DFN |
| 產(chǎn)品培訓(xùn)模塊： | LTC4310 - Hot-Swappable I²C Isolators |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 應(yīng)用： | 帶放大器的多路復(fù)用器 |
| 接口： | SMBus（2 線/I²C） |
| 電源電壓： | 2.2 V ~ 5.5 V |
| 封裝/外殼： | 16-WFDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 16-DFN（5x4） |
| 包裝： | 帶卷 (TR) |
| 安裝類型： | 表面貼裝 |
LTC4305
1
4305f
APPLICATIO S
U
TYPICAL APPLICATIO
U
FEATURES
DESCRIPTIO
U
The LTC
4305 is a 2-channel, 2-wire bus multiplexer with
bus buffers to provide capacitive isolation between the
upstream bus and downstream buses. Through software
control, the LTC4305 connects the upstream 2-wire bus
to any desired combination of downstream channels.
Each channel can be pulled up to a supply voltage ranging
from 2.2V to 5.5V, independent of the LTC4305 supply
voltage. The downstream channels are also provided with
an ALERT1–ALERT2 inputs for fault reporting.
Programmable timeout circuitry disconnects the down-
stream buses if the bus is stuck low. When activated, rise
time accelerators source currents into the 2-wire bus pins
to reduce rise time. Driving the ENABLE pin low restores
all features to their default states. Three address pins
provide 27 distinct addresses.
The LTC4305 is available in 16-lead (4mm
× 5mm) DFN
and SSOP packages.
■
Nested Addressing
■
5V/3.3V Level Translator
■
Capacitance Buffer/Bus Extender
■
1:2 2-Wire Multiplexer/Switch
■
Connect SDA and SCL Lines with 2-Wire Bus
Commands
■
Supply Independent Bidirectional Buffer for SDA
and SCL Lines Increases Fan-Out
■
Programmable Disconnect from Stuck Bus
■
Compatible with I2C and SMBus Standards
■
Rise Time Accelerator Circuitry
■
SMBus Compatible ALERT Response Protocol
■
Prevents SDA and SCL Corruption During Live Board
Insertion and Removal from Backplane
■
±10kV Human Body Model ESD Ruggedness
■
16-Lead (4mm
× 5mm) DFN and SSOP Packages
2-Channel,
2-Wire Bus Multiplexer with
Capacitance Buffering
, LTC and LT are registered trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners. Patent Pending.
A Level-Shifting and Nested Addressing Application
10k
0.01
F
10k
ADDRESS = 1000 100
SFP
MODULE #1
10k
ADDRESS = 1111 000
MICRO-
CONTROLLER
SFP
MODULE #2
ADDRESS = 1111 000
2.5V
5V
3.3V
4305 TA01
SCLIN
SDAIN
ALERT
ADR2
ADR1
ADR0
GND
SCL1
SDA1
ALERT1
SCL2
SDA2
ALERT2
VCC
LTC4305
4305 TA01b
VCC = 3.3V
VCARD1 = 3.3V
VCARD2 = 5V
VBACK = 2.5V
SCL2
2V/DIV
500ns/DIV
SCL1
2V/DIV
SCLIN
2V/DIV
I2C Bus Waveforms
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4305IGN | 功能描述:IC BUFFER BUS 2WR ADDRESS 16SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 專用 系列:- 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
| LTC4305IGN#PBF | 功能描述:IC BUFFER BUS 2WR ADDRESS 16SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
| LTC4305IGN#TR | 功能描述:IC BUFFER BUS 2WR ADDRESS 16SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 專用 系列:- 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
| LTC4305IGN#TRPBF | 功能描述:IC BUFFER BUS 2WR ADDRESS 16SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
| LTC4306CGN | 功能描述:IC MUX 4CH 2-WIRE BUS 24-SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 專用 系列:- 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
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