SP3078E 3.3V工作电压，15kV静电保护，全双工RS-485/RS422，限斜率，故障保护
The SP3070E-3078E differential line transceivers are suitable for bidirectional communication on balanced multipoint bus transmission lines and comply with both RS485 and RS422 EIA Standards. Each device consists of a differential driver and differential receiver. All devices operate from a 3.3V power supply. High receiver input impedance allows a large number of transceivers to share a common data bus while maintaining signal margin and without excessive loading or use of expensive repeaters. The high impedance driver output is maintained over the entire common-mode voltage range from -7 to +12V. Receivers will failsafe to logic 1 output when inputs are open, shorted or terminated. Drivers include built-in short-circuit protection and a thermal-overload shutdown to protect against excessive power dissipation from bus contention or cable faults. All RS485 receiver inputs and driver outputs are ESD protected up to ±15kV (Air-Gap and Human Body Model) and up to ±8kV Contact discharge (IEC 1000-4-2).
技术特性
- ±15kV ESD protection for RS485 pins
- 3.3V low-power operation
- Advanced receiver-failsafe protection for open, shorted or terminated lines
- Up to 256 Transceivers may share bus
- Very low load for 8x greater fan-out
- Hot Swap glitch protection RE and DE
- Thermal shutdown protects against driver contention
- Available in three industry standard footprints
- SP3070E, SP3073E and SP3078E in Full-Duplex (14 pin)
- SP3071E, SP3074E and SP3078E in Full-Duplex (8 pin)
- SP3072E, SP3078E and SP3078E in Half-Duplex (8 pin)
- Three applications-optimized speed grades
- SP3070-72E: 250kbps fully slew-limited
- SP3073-75E: 500kbps slew-limited
- SP3076-78E: 16Mbps high speed
- Small form factor SO-narrow packages
- Industrial (-40 to +85ºC) & Extended (-40 to +85ºC) temperature grades
|
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 |
全 |
| 数据传输速率(kbps) |
500 |
| 静电放电ESD(KV) |
15 |
| 典型关断集成元件电路(µA) |
0.5 |
| 接收开路故障防护 |
是 |
| 接收短路故障防护 |
是 |
| 关断 |
是 |
| 多点节点 |
256 |
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 |
| SP3078EMN/TR |
|
-40 |
125 |
返修 |
|
|
| SP3078EMN |
|
-40 |
125 |
返修 |
|
|
| SP3078EMN-L/TR |
|
-40 |
125 |
运行 |
|
|
| SP3078EMN-L |
|
-40 |
125 |
运行 |
|
|
| SP3078EEP |
|
-40 |
85 |
返修 |
|
|
| SP3078EEN/TR |
|
-40 |
85 |
运行 |
|
|
| SP3078EEN |
|
-40 |
85 |
运行 |
|
|
| SP3078EEN-L/TR |
|
-40 |
85 |
运行 |
|
|
| SP3078EEN-L |
|
-40 |
85 |
运行 |
|
