Datasheet > LTABF

LTABF

更新时间： 2024-11-05 11:42:23

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
16页	282K
描述
Hot Swappable 2-Wire Bus Buffers

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LTABF 数据手册

LTC4300A-1/LTC4300A-2

Hot Swappable

2-Wire Bus Buffers

DESCRIPTIO

FEATURES

■

Bidirectional Buffer for SDA and SCL Lines

The LTC^®4300A series hot swappable 2-wire bus buffers

allow I/O card insertion into a live backplane without

corruption of the data and clock busses. When the con-

nection is made, the LTC4300A-1/LTC4300A-2 provide

bidirectional buffering, keeping the backplane and card

capacitances isolated. Rise-time accelerator circuitry*

allows the use of weaker DC pull-up currents while still

meeting rise-time requirements. During insertion, the

SDA and SCL lines are precharged to 1V to minimize bus

disturbances.

Increases Fanout

■

Prevents SDA and SCL Corruption During Live

Board Insertion and Removal from Backplane

■

Isolates Input SDA and SCL Lines from Output

Compatible with I²C^TM, I²C Fast Mode and SMBus

■

Standards (Up to 400kHz Operation)

Small MSOP 8-Pin Package

■

Low I_CCChip Disable: <1µA (LTC4300A-1)

■

READY Open Drain Output (LTC4300A-1)

■

1V Precharge on all SDA and SCL Lines

The LTC4300A-1 incorporates a CMOS threshold digital

ENABLE input pin, which forces the part into a low current

modewhendriventogroundandsetsnormaloperationwhen

driven to V_CC. It also includes an open drain READY output

pin, which indicates that the backplane and card sides are

connectedtogether. TheLTC4300A-2replacestheENABLE

pin with a dedicated supply voltage pin, V_CC2, for the card

side, providinglevelshiftingbetween3.3Vand5Vsystems.

Both the backplane and card may be powered with supply

voltages ranging from 2.7V to 5.5V, with no contraints on

which supply voltage is higher. The LTC4300A-2 also re-

places the READY pin with a digital CMOS input pin, ACC,

whichenablesanddisablestherise-timeacceleratorcurrents.

■

Supports Clock Stretching, Arbitration and

Synchronization

■

5V to 3.3V Level Translation (LTC4300A-2)

■

High Impedance SDA, SCL Pins for V_CC= 0V

APPLICATIO S

■

Hot Board Insertion

Servers

■

Capacitance Buffer/Bus Extender

■

Desktop Computer

, LTC and LT are registered trademarks of Linear Technology Corporation.

I²C is a trademark of Philips Electronics N. V.

*U.S. Patent No. 6,650,174

The LTC4300A is available in a small 8-pin MSOP package.

TYPICAL APPLICATIO

Input–Output Connection t_PLH

3.3V

0.01µF

10k

SCLIN

SCLOUT

OUTPUT

SIDE

50pF

INPUT

SIDE

150pF

SDAIN

SDAOUT

LTC4300A-1

ENABLE

READY

GND

4300A TA02

4300A-1/2 TA01

sn4300a12 4300a12fs

12 3 4 5 6 7...16

中文翻译

下载PDF

与LTABF相关器件

型号	品牌	获取价格	描述	数据表
LTABG	Linear	获取价格	Hot Swappable 2-Wire Bus Buffers
LTABH	Linear	获取价格	Negative Low Voltage Hot Swap Controllers
LTABJ	Linear	获取价格	Negative Low Voltage Hot Swap Controllers
LTABK	Linear	获取价格	Negative Low Voltage Hot Swap Controllers
LTABL	Linear	获取价格	Negative Low Voltage Hot Swap Controllers
LTACF	Linear	获取价格	Hot Swappable 2-Wire Bus Buffers
LTACG	Linear	获取价格	Hot Swappable 2-Wire Bus Buffers
LTAEY	Linear Systems	获取价格	Differential Input 16-Bit No Latency DS ADC
LTAEZ	Linear Systems	获取价格	Differential Input 16-Bit No Latency DS ADC
LTAGL	Linear	获取价格	100mA, Low Voltage, Very Low Dropout Linear Regulator

与LTABF相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

13
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

9
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

35
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

31

产品中心

服务支持

精选活动

关于我们

帮助中心

LTABF

LTABF 数据手册

与LTABF相关器件

与LTABF相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LTABF

LTABF 数据手册

与LTABF相关器件

与LTABF相关文章

您还可以找

您在本页遇到什么问题？