SP3494 3.3V，限斜率，RS-485/RS-422，2.5Mbps，半双工

The SP3494 device is a +3.3V low power half-duplex transceiver that meets the specifications of the RS-485 and RS-422 serial protocols. This device is pin-to-pin compatible with the Exar SP3481device as well as other popular industry standards. The SP3494 features the Exar BiCMOS process, allowing low power operation without sacrificing performance. The partially slew-rate limited drivers minimize EMI and reduce reflections caused by improperly terminated cables allowing error-free data transmission.The SP3494 is a half-duplex partially slew-rate limited transceiver that will deliver a data transmission rate up to 2.5Mbps. The SP3494 is equipped with a low-power shutdown mode and driver/receiver high-Z enable lines.

技术特性

Operates From A Single +3.3V Supply
Interoperable With +5V Logic
±200mV Receiver Input Sensitivity
-7V to +12V Common-Mode Input Voltage Range
Devices Allow Up To 32 Transceivers On The Serial Bus
Driver/Receiver Enable Lines
2nA Low-Power Shutdown Mode
Compatible With MAX3486 and 75176 Industry Standard Pinouts

订购信息 Ordering Information

器件型号	有害物质限制	最低温度	最高温度	状态	立刻购买	申请样片
SP3494EN-L		-40	85	运行
SP3494EN/TR		-40	85	运行
SP3494EN		-40	85	运行
SP3494EP-L		-40	85	运行
SP3494EP		-40	85	运行
SP3494EN-L/TR		-40	85	运行
SP3494CN-L		0	70	运行
SP3494CN/TR		0	70	运行
SP3494CN		0	70	运行
SP3494CP-L		0	70	运行
SP3494CP		0	70	运行
SP3494CN-L/TR		0	70	运行

技术指标

电源电压Vcc(V)	3.3
发送器数量(Tx)	1
接收器数量(Rx)	1
双工	半
数据传输速率(kbps)	2500
静电放电ESD(KV)	2
典型关断集成元件电路(µA)	10
接收开路故障防护	是
接收短路故障防护	否
关断	是
多点节点	32

功能框图 Functional Block Diagram

应用技术支持与电子电路设计开发资源下载	版本信息	大小
SP3494 数据资料DataSheet下载:pdf	Rev.V2	2 页