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參數(shù)資料
| 型號(hào)： | LTC4302-1 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Addressable 2-Wire Bus Buffers |
| 中文描述： | 尋址2線總線緩沖器 |
| 文件頁(yè)數(shù)： | 1/20頁(yè) |
| 文件大小： | 293K |
| 代理商： | LTC4302-1 |
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LTC4302-1/LTC4302-2
Addressable
2-Wire Bus Buffers
1
sn430212 430212fs
APPLICATIU
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
The LTC
4302-1/LTC4302-2 addressable I
2
C bus and
SMBus compatible bus buffers allow a peripheral board
to be inserted and removed from a live backplane without
corruption of the bus. The LTC4302-1/LTC4302-2 main-
tain electrical isolation between the backplane and periph-
eral board until their V
CC
supply is valid and a master
device on the backplane side addresses the LTC4302-1/
LTC4302-2 and commands them to connect. The
LTC4302-1/LTC4302-2’s ADDRESS pin provides 32 pos-
sible addresses set by an external resistive divider be-
tween V
CC
and GND. The LTC4302-1/LTC4302-2 work
with supply voltages ranging from 2.7V to 5.5V. The SDA
and SCL inputs and outputs do not load the bus lines when
V
CC
is low.
Rise time accelerator circuitry* allows for heavier capaci-
tive bus loading while still meeting system timing require-
ments. During insertion, the SDA and SCL lines are
precharged to 1V to minimize bus disturbances. Two
general purpose input/output pins (GPIOs) on the
LTC4302-1 can be configured as inputs, open-drain out-
puts or push-pull outputs. The LTC4302-2 option replaces
one GPIO pin with a second supply voltage pin V
CC2
,
providing level shifting between systems with different
supply voltages. The
LTC4302-1/LTC4302-2
are available
in a 10-pin MSOP package.
U
I
Live Board Insertion
I
5V/3.3V Level Translator
I
Servers
I
Capacitance Buffer/Bus Extender
I
Nested Addressing
, LTC and LT are registered trademarks of Linear Technology Corporation.
I
2
C is a trademark of Philips Electronics N.V.
*U.S. Patent No. 6,650,174
I
Bidirectional Buffer for SDA and SCL Lines
Increases Fanout
I
Connect SDA and SCL Lines with 2-Wire Bus
Commands
I
Prevents SDA and SCL Corruption During Live Board
Insertion and Removal from Backplane
I
Compatible with I
2
C
TM
Standard Mode, I
2
C Fast
Mode and SMBus Standards
I
Rise Time Accelerators on SDA, SCL Lines
I
1V Precharge on SDA and SCL Lines
I
32 Unique Addresses from a Single ADDRESS Pin
I
Two General Purpose Inputs-Outputs (LTC4302-1)
I
Translates Between 5V and 3.3V Systems
(LTC4302-2)
I
Small 10-Pin MSOP Package
V
CC
LTC4302-1
SDAIN
SCLIN
CONN
ADDRESS
C1
0.01
μ
F
CARD SDA
CARD SCL
R7
10k
R6
10k
R8
1k
R9
1k
2.7V
to
5.5V
R3
10k
R4
10k
R5
10k
SDA
SCL
R1
1870
R2
2000
GND
LED
LED
4203 TA01a
SDAOUT
SCLOUT
GPIO1
GPIO2
4032 F10
OUTPUT
SIDE
50pF
INPUT
SIDE
150pF
Input-Output Connection t
PLH
0.1
μ
s/DIV
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC4302-2 | Addressable 2-Wire Bus Buffers |
| LTC4302CMS-1 | Addressable 2-Wire Bus Buffers |
| LTC4302CMS-2 | Addressable 2-Wire Bus Buffers |
| LTC4302IMS-1 | Addressable 2-Wire Bus Buffers |
| LTC4302IMS-2 | Addressable 2-Wire Bus Buffers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4302CMS-1 | 功能描述:IC BUFFER 2-WIRE BUS 10-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開(kāi)關(guān):無(wú) 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| LTC4302CMS-1#PBF | 功能描述:IC BUS BUFFER 2-WIRE 10-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開(kāi)關(guān):無(wú) 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應(yīng)商設(shè)備封裝:80-TQFP（12x12） 包裝:托盤 產(chǎn)品目錄頁(yè)面:1423 (CN2011-ZH PDF) |
| LTC4302CMS-1#TR | 功能描述:IC BUFFER BUS 2WR ADDRESS 10MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開(kāi)關(guān):無(wú) 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| LTC4302CMS-1#TRPBF | 功能描述:IC BUFFER 2-WIRE BUS 10-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開(kāi)關(guān):無(wú) 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| LTC4302CMS-2 | 功能描述:IC BUFFER 2-WIRE BUS 10-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開(kāi)關(guān):無(wú) 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
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