參數(shù)資料
型號： LTC2870IUFD#TRPBF
廠商： Linear Technology
文件頁數(shù)： 1/36頁
文件大?。?/td> 0K
描述： IC TXRX RS485/RS422 28-QFN
產(chǎn)品培訓模塊： LTC2870 and LTC2871 Multi-Protocol Transceivers
標準包裝： 2,500
類型： 收發(fā)器
驅動器/接收器數(shù)： 2/2
規(guī)程： RS232，RS422，RS485
電源電壓： 3 V ~ 5.5 V
安裝類型： 表面貼裝
封裝/外殼： 28-WFQFN 裸露焊盤
供應商設備封裝： 28-QFN（4x5）
包裝： 帶卷 (TR)
LTC2870/LTC2871
1
28701f
TYPICAL APPLICATIONS
DESCRIPTION
RS232/RS485 Multiprotocol
Transceivers with
Integrated Termination
The LTC2870/LTC2871 are robust pin-configurable mul-
tiprotocol transceivers, supporting RS232, RS485, and
RS422 protocols, operating on a single 3V to 5.5V supply.
The LTC2870 can be configured as two RS232 single-ended
transceivers or one RS485 differential transceiver on shared
I/O lines. The LTC2871 offers independent control of two
RS232 transceivers and one RS485 transceiver, each on
dedicated I/O lines.
Pin-controlled integrated termination resistors allow
for easy interface reconfiguration, eliminating external
resistors and control relays. Half-duplex switches allow
four-wire and two-wire RS485 configurations. Loopback
mode steers the driver inputs to the receiver outputs for
diagnostic self-test.The RS485 receivers support up to
256 nodes per bus, and feature full failsafe operation for
floating, shorted or terminated inputs.
An integrated DC/DC boost converter uses a small induc-
tor and one capacitor, eliminating the need for multiple
supplies for driving RS232 levels.
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.
Protocol Switching with
Automatic Termination Selection
FEATURES
APPLICATIONS
n One RS485 and Two RS232 Transceivers
n 3V to 5.5V Supply Voltage
n 20Mbps RS485 and 500kbps RS232
n Automatic Selection of Integrated RS485 (120Ω)
and RS232 (5kΩ)Termination Resistors
n Half-/Full-Duplex RS485 Switching
n High ESD: ±26kV (LTC2870), ±16kV (LTC2871)
n Logic Loopback Mode
n 1.7V to 5.5V Logic Interface
n Supports Up to 256 RS485 Nodes
n RS485 Receiver Failsafe Eliminates UART Lockup
n Available in 28-Pin 4mm × 5mm QFN and
TSSOP (LTC2870), and 38-Pin 5mm × 7mm QFN
and TSSOP (LTC2871)
n Flexible RS232/RS485/RS422 Interface
n Software Selectable Multiprotocol Interface Ports
n Point-of-Sale Terminals
n Cable Repeaters
n Protocol Translators
Simultaneous Protocols and
RS485 Termination Switching
RS485 Duplex Switching
28701 TA01
LTC2870
1.7V TO VCC
3V TO 5.5V
1.7V TO VCC
3V TO 5.5V
1.7V TO VCC
3V TO 5.5V
RS485
TERMINATION
RS485
DUPLEX
485/232
DY
Y
Z
A
B
DZ
RA
RB
Y
Z
A
B
DI
VL
TE485
RO
DIN1
ROUT2
DIN2
ROUT1
VCC
VL
VCC
DOUT1
RIN2
DOUT2
RIN1
LTC2871
120Ω
Y
VCC
Z
A
B
DI,
DY
RO,
RB
H/F
LTC2870,
LTC2871
HALF
FULL
RS485
RS232
ON
OFF
VL
相關PDF資料
PDF描述
VI-21B-IU-F4 CONVERTER MOD DC/DC 95V 200W
LTC1334CSW IC CMOS TXRX MULTIPROTOCL 28SOIC
VI-214-IU-F4 CONVERTER MOD DC/DC 48V 200W
VE-23K-IU-F2 CONVERTER MOD DC/DC 40V 200W
IDT72845LB25PF8 IC FIFO SYNC DL 4096X18 128TQFP
相關代理商/技術參數(shù)
參數(shù)描述
LTC2871CFE#PBF 功能描述:IC TXRX RS485/RS422 38-TSSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:1 系列:- 類型:線路收發(fā)器 驅動器/接收器數(shù):5/3 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:Digi-Reel® 產(chǎn)品目錄頁面:918 (CN2011-ZH PDF) 其它名稱:296-25096-6
LTC2871CFE#TRPBF 功能描述:IC TXRX RS485/RS422 38-TSSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:27 系列:- 類型:收發(fā)器 驅動器/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） 供應商設備封裝:28-SOIC 包裝:管件
LTC2871CUHF#PBF 功能描述:IC TXRX RS485/RS422 38-QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓模塊:RS-232 & USB Transceiver 標準包裝:2,000 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):1/1 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2
LTC2871CUHF#TRPBF 功能描述:IC TXRX RS485/RS422 38-QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:27 系列:- 類型:收發(fā)器 驅動器/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） 供應商設備封裝:28-SOIC 包裝:管件
LTC2871IFE#PBF 功能描述:IC TXRX RS485/RS422 38-TSSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓模塊:RS-232 & USB Transceiver 標準包裝:2,000 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):1/1 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*