SP3249E 智能+3.0V～+5.5V RS-232收发器
The SP3249E device is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook and palmtop computers. The SP3249E uses an internal high-efficiency, charge-pump power supply that requires only 0.1μF capacitors in 3.3V operation. This charge pump and Exar's driver architecture allow the SP3249E device to deliver compliant RS-232 performance from a single power supply ranging from +3.0V to +5.0V. The SP3249E is a 5-driver/3-receiver device, ideal for laptop/notebook computer and PDA applications.
技术特性
- Meets true EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply
- Interoperable with EIA/TIA-232 and adheres to EIA/TIA-562 down to a +2.7V power source
- Minimum 250Kbps data rate under load
- Regulated Charge Pump Yields Stable RS-232 Outputs Regardless of VCC Variations
- Enhanced ESD Specifications:
- ±15KV Human Body Model
- ±15KV IEC1000-4-2 Air Discharge
- ±8KV IEC1000-4-2 Contact Discharge
应用领域 APPLICATION
- Diagnostic/Serial ports on embedded applications
- Handheld Test Equipment
- PC related Peripherals and Equipment
- Battery Powered Equipment
- Point-of-sale Equipment
- Set-top Box
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 |
| SP3249EEA-L |
|
-40 |
85 |
运行 |
|
|
| SP3249EEA-L/TR |
|
-40 |
85 |
运行 |
|
|
| SP3249EEA |
|
-40 |
85 |
运行 |
|
|
| SP3249EEA/TR |
|
-40 |
85 |
运行 |
|
|
| SP3249EEY-L |
|
-40 |
85 |
运行 |
|
|
| SP3249EEY-L/TR |
|
-40 |
85 |
运行 |
|
|
| SP3249EEY |
|
-40 |
85 |
运行 |
|
|
| SP3249EEY/TR |
|
-40 |
85 |
运行 |
|
|
| SP3249ECA-L |
|
0 |
70 |
运行 |
|
|
| SP3249ECA-L/TR |
|
0 |
70 |
运行 |
|
|
| SP3249ECA |
|
0 |
70 |
运行 |
|
|
| SP3249ECA/TR |
|
0 |
70 |
运行 |
|
|
| SP3249ECY-L |
|
0 |
70 |
运行 |
|
|
| SP3249ECY-L/TR |
|
0 |
70 |
运行 |
|
|
| SP3249ECY |
|
0 |
70 |
运行 |
|
|
| SP3249ECY/TR |
|
0 |
70 |
运行 |
|
技术指标
| 发送器数量(Tx) |
5 |
| 接收器数量(Rx) |
3 |
| 数据传输速率(kbps) |
250 |
| 静电放电ESD(KV) |
15 |
| 最低电源电压Vcc(V) |
3 |
| 最高电源电压Vcc(V) |
5.5 |
| 电源电压Vcc(V) |
3.3 |
| 内置电荷泵 |
是 |
| 外部电容器数量 |
4 |
| 额定电容值(µF) |
0.1 |
| 关断 |
是 |
| TTL 三态 |
否 |
功能框图 Functional Block Diagram
|
