參數(shù)資料
型號(hào)： LTC2857CDD-2#PBF
廠商： Linear Technology
文件頁(yè)數(shù)： 1/20頁(yè)
文件大?。?/td> 0K
描述： IC TXRX RS485/RS422 8-DFN
標(biāo)準(zhǔn)包裝： 121
類型： 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù)： 1/1
規(guī)程： RS422，RS485
電源電壓： 4.5 V ~ 5.5 V
安裝類型： 表面貼裝
封裝/外殼： 8-WFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 8-DFN-EP（3x3）
包裝： 管件
LTC2856-1/LTC2856-2
LTC2857-1/LTC2857-2
LTC2858-1/LTC2858-2
1
285678ff
For more information www.linear.com/LTC2856-1
Typical applicaTion
FeaTures
applicaTions
DescripTion
20Mbps and Slew Rate
Limited 15kV RS485/RS422
Transceivers
The LTC2856-1, LTC2856-2, LTC2857-1, LTC2857-2,
LTC2858-1 and LTC2858-2 are low power, RS485/RS422
transceivers operating on 5V supplies at maximum data
rates of 20Mbps or 250kbps for low EMI. The receiver has
a one-eighth unit load, supporting up to 256 nodes per bus
(C, I-Grade), and a failsafe feature that guarantees a high
outputstateunderconditionsoffloatingorshortedinputs.
The driver maintains a high output impedance over the
entire common mode range when disabled or when the
supplyisremoved.Excessivepowerdissipationcausedby
bus contention or a fault is prevented by current limiting
all outputs and by thermal shutdown.
Enhanced ESD protection allows these parts to withstand
±15kV (human body model) on the transceiver interface
pins without latchup or damage.
n
20Mbps or Low EMI 250kbps Maximum Data Rate
n
No Damage or Latchup to ESD: ±15kV HBM
n
High Input Impedance Supports 256 Nodes
(C, I-Grade)
n
Operation Up to 125°C (H-Grade)
n
Guaranteed Failsafe Receiver Operation Over the
Entire Common Mode Range
n
Current Limited Drivers and Thermal Shutdown
n
Delayed Micropower Shutdown: 5A Maximum
(C, I-Grade)
n
Power Up/Down Glitch-Free Driver Outputs
n
Low Operating Current: 900A Maximum in Receive
Mode
n
Compatible with TIA/EIA-485-A Specifications
n
Available in 8-Lead and 10-Lead 3mm
× 3mm DFN
and 8-Lead and 10-Lead MSOP Packages
n
Low Power RS485/RS422 Transceiver
n
Level Translator
n
Backplane Transceiver
VCC1
GND1
R
RO1
RE1
DE1
DI1
D
RT
LTC2856-1
RT
285678 TA01a
VCC2
GND2
R
RO2
RE2
DE2
DI2
D
PART
NUMBER
MAX DATA
RATE (Mbps)
DUPLEX
PACKAGE
LTC2856-1
20
Half
MSOP-8, DFN-8
LTC2856-2
0.25
Half
MSOP-8, DFN-8
LTC2857-1
20
Full
MSOP-8, DFN-8
LTC2857-2
0.25
Full
MSOP-8, DFN-8
LTC2858-1
20
Full
MSOP-10, DFN-10
LTC2858-2
0.25
Full
MSOP-10, DFN-10
DI
Y
Z
Y-Z
20ns/DIV
2856 TA01b
2V
/DIV
LTC2858-1 at 20Mbps
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
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LTC2857CDD-1#PBF IC TXRX RS485/RS422 8-DFN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC2857CMS8-1#PBF 功能描述:IC TXRX RS485/RS422 8-MSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:121 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:RS422，RS485 電源電壓:3 V ~ 3.6 V 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-DFN（3x3） 包裝:管件
LTC2857CMS8-1#TRPBF 功能描述:IC TXRX RS485/RS422 8-MSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:121 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:RS422，RS485 電源電壓:3 V ~ 3.6 V 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-DFN（3x3） 包裝:管件
LTC2857CMS8-2#PBF 功能描述:IC TXRX RS485/RS422 8-MSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:121 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:RS422，RS485 電源電壓:3 V ~ 3.6 V 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-DFN（3x3） 包裝:管件
LTC2857CMS8-2#TRPBF 功能描述:IC TXRX RS485/RS422 8-MSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:121 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:RS422，RS485 電源電壓:3 V ~ 3.6 V 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-DFN（3x3） 包裝:管件
LTC2857HDD-1#PBF 功能描述:IC TXRX RS485/RS422 8-DFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件
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