您的位置：维库电子市场网 > Datasheet > LTC4300-1CMS8

LTC4300-1CMS8 Datasheet

  • LTC4300-1CMS8

  • Hot Swappable 2-Wire Bus Buffers

  • 288.96KB

  • 16页

  • LINER

阅览下载 纠错 0

扫码查看芯片数据手册

上传产品规格书

PDF预览

LTC4300-1/LTC4300-2
Hot Swappable
2-Wire Bus Buffers
FEATURES
s
s
DESCRIPTIO
s
s
s
s
s
s
s
s
s
Bidirectional Buffer for SDA and SCL Lines
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 I
2
C
TM
, I
2
C Fast Mode and SMBus
Standards (Up to 400kHz Operation)
Small MSOP 8-Pin Package
Low I
CC
Chip Disable: <1碌A (LTC4300-1)
READY Open Drain Output (LTC4300-1)
1V Precharge on all SDA and SCL Lines
Supports Clock Stretching, Arbitration and
Synchronization
5V to 3.3V Level Translation (LTC4300-2)
High Impedance SDA, SCL Pins for V
CC
= 0V
The LTC
庐
4300 series hot swappable 2-wire bus buffers
allow I/O card insertion into a live backplane without cor-
ruption of the data and clock busses. When the connection
is made, the LTC4300-1/LTC4300-2 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.
The LTC4300-1 incorporates a CMOS threshold digital
ENABLE input pin, which forces the part into a low current
mode when driven to ground and sets normal operation when
driven to V
CC
. It also includes an open drain READY output
pin, which indicates that the backplane and card sides are
connected together. The LTC4300-2 replaces the ENABLE
pin with a dedicated supply voltage pin, V
CC2
, for the card
side, providing level shifting between 3.3V and 5V systems.
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 LTC4300-2 also replaces
the READY pin with a digital CMOS input pin, ACC, which
enables and disables the rise-time accelerator currents.
The LTC4300 is available in a small 8-pin MSOP package.
APPLICATIO S
s
s
s
s
Hot Board Insertion
Servers
Capacitance Buffer/Bus Extender
Desktop Computer
, 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
TYPICAL APPLICATIO
V
CC
3.3V
R1
24k
SCLIN
C2*
R2
24k
3
8
Input鈥揙utput Connection t
PLH
C1
0.01碌F
R3
24k
2
R4
24k
SCLOUT
C4*
OUTPUT
SIDE
50pF
INPUT
SIDE
150pF
SDAIN
C3*
6
7
SDAOUT
C5*
1
*CAPACITORS NOT REQUIRED
IF BUS IS SUFFICIENTLY LOADED
LTC4300-1
5
ENABLE
READY
GND
4
4300-1/2
TA01
U
sn430012 430012fs
U
U
1

LTC4300-1CMS8 产品属性

  • LTC4300-1/2

  • 50

  • 集成电路 (IC)

  • PMIC - 热交换

  • -

  • 热交换开关

  • 通用型缓冲器/总线扩展器

  • 是

  • -

  • 2.7 V ~ 5.5 V

  • 0°C ~ 70°C

  • 表面贴装

  • 8-TSSOP，8-MSOP（0.118"，3.00mm 宽）

  • 8-MSOP

  • 管件

  • Q1143786

LTC4300-1CMS8相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

©2024 维库电子市场网（www.dzsc.com）　备案号：浙B2-20050339-1 经营许可证：浙B2-20210386版权声明
买家服务热线：0571-85317607 | 买家服务部QQ： QQ:1609526468
卖家服务热线：0571-85317607 | 卖家服务部QQ： QQ:331652727

扫码下载APP，
一键连接广大的电子世界。

在线人工客服

买家服务：
卖家服务：

0571-85317607

客服在线时间周一至周五
9:00-17:30

关注官方微信号，
第一时间获取资讯。

建议反馈
返回顶部

建议反馈

联系人：

联系方式：

按住滑块，拖拽到最右边
>>
感谢您向阿库提出的宝贵意见，您的参与是维库提升服务的动力！意见一经采纳，将有感恩红包奉上哦！

PDF纠错X

投诉电话：0571-85317607 投诉QQ：

如选匿名将无法为您反馈投诉结果，建议实名投诉！