SP491：全双工RS-485收发器
The SP490 is a low power differential line driver/receiver meeting
RS-485 and RS-422 standards up to 5Mbps. The SP491 is identical to the
SP490 with the addition of driver and receiver tri-state enable lines.
Both products feature ±200mV receiver input sensitivity, over wide
common mode range. The SP490 is available in 8-pin plastic DIP and 8-pin
NSOIC packages for operation over the commercial and industrial
temperature ranges. The SP491 is available in 14-pin DIP and 14-pin
NSOIC packages for operation over the commercial and industrial
temperature ranges.
For technical support or help choosing a product please email Exar’s Serial Technical Support group at:
serialtechsupport@exar.com.
技术特性- +5V单电源电压工作
- 低功耗BiCMOS
- 驱动器/接收器使能(SP491)
- RS-485和RS-422驱动器/接收器
- 与LTC491和SN75180管脚兼容
数据手册S应用指南过程合格报告传输特性报告Product Change Notification | | 规格 | 参数 | | 电源电压Vcc(V) | 5 | | 发送器数量(Tx) | 1 | | 接收器数量(Rx) | 1 | | 双工 | 全 | | 数据传输速率(kbps) | 5000 | | 静电放电ESD(KV) | 2 | | 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 |
|
订购型号
| 器件型号 | 封装编码 | 最低温度 | 最高温度 | 状态 |
|---|
| SP491CN | NSOIC14 | 0 | 70 | 运行 |
| SP491CN/TR | NSOIC14 | 0 | 70 | 运行 |
| SP491CN-L | NSOIC14 | 0 | 70 | 运行 |
| SP491CN-L/TR | NSOIC14 | 0 | 70 | 运行 |
| SP491CS | PDIP14 | 0 | 70 | 运行 |
| SP491CS-L | PDIP14 | 0 | 70 | 运行 |
| SP491EN | NSOIC14 | -40 | 85 | 运行 |
| SP491EN/TR | NSOIC14 | -40 | 85 | 运行 |
| SP491EN-L | NSOIC14 | -40 | 85 | 运行 |
| SP491EN-L/TR | NSOIC14 | -40 | 85 | 运行 |
| SP491ES | PDIP14 | -40 | 85 | 运行 |
| SP491ES-L | PDIP14 | -40 | 85 | OBS |
