REV. 1.0.1 RS-232 to RS-485 Translator SP336E can be used to implement" />
參數(shù)資料
型號: SP336ECY-L/TR
廠商: Exar Corporation
文件頁數(shù): 17/30頁
文件大小: 0K
描述: IC TXRX RS232/485/422 28TSSOP
產品變化通告: Packaging Change 15/Jul/2010
標準包裝: 1,500
類型: 收發(fā)器
驅動器/接收器數(shù): 4/4
規(guī)程: RS232,RS422,RS485
電源電壓: 3.3 V,5 V
安裝類型: 表面貼裝
封裝/外殼: 28-TSSOP(0.173",4.40mm 寬)
供應商設備封裝: 28-TSSOP
包裝: 帶卷 (TR)
SP336E
24
3.3V / 5V PROGRAMMABLE RS-232/RS-485/RS-422 SERIAL TRANSCEIVER
REV. 1.0.1
RS-232 to RS-485 Translator
SP336E can be used to implement a single-chip RS-232 to RS-485 translator function. Both full-duplex (4-wire
RS-485) and half-duplex (2-wire RS-485) configurations are shown. RS-485 is capable of communicating on
data cables up to 4000 feet (1200 meter) which makes it an ideal interface for extending the reach of short-
range serial ports like RS-232. The configurations shown can be used to connect directly to existing PC type
RS-232 serial ports to enable extended-reach communication.
The RTS signal (circuit CA or 105) is used as a transmit direction control signal for half-duplex. The ON
condition puts the repeater into transmit mode and inhibits receive. On a half-duplex channel RxD should be
held in MARK state (binary 1) when receiver 3 is inactive. Driver 1 on the SP336E can be used to generate
DSR or CTS signal to indicate to the host terminal that the translator is powered-on and ready.
Shutdown Modes
SP336E features two shutdown modes. In mode 111 (full shutdown) all drivers and receivers are at high
impedance. In mode 110, all drivers are tri-state but all four receivers remain active. In modes 101 and 100 two
differential receivers can be kept active while the differential drivers are tri-stated using the Tx_EN inputs.
FIGURE 25. RS-232 / RS-485 TRANSLATOR FULL-DUPLEX CABLE-EXTENDER (MODE 011)
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相關代理商/技術參數(shù)
參數(shù)描述
SP336EET-L 功能描述:接口 - 專用 4 Tx/Rx Programmable RS232/485/422 Serial RoHS:否 制造商:Texas Instruments 產品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59
SP336EET-L 制造商:Exar Corporation 功能描述:IC RS-232/RS-485/RS-422 TXRX 5V SOIC28
SP336EET-L/TR 功能描述:接口 - 專用 4 Tx/Rx Programmable RS232/485/422 Serial RoHS:否 制造商:Texas Instruments 產品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59
SP336EEY-0A-EB 功能描述:界面開發(fā)工具 Eval Board for SP336E Series RoHS:否 制造商:Bourns 產品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
SP336EEY-L 功能描述:接口 - 專用 4 Tx/Rx Programmable RS232/485/422 Serial RoHS:否 制造商:Texas Instruments 產品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59