SP3245E 带Auto On-line® Plus特性的1Mbps +3.0V～+5.5V RS-232收发器

The SP3244E/3245E is a 3-driver/5-receiver device ideal for mobile phone, consumer and PDA applications. These devices use an internal high-efficiency, charge-pump power supply that requires only 0.1μF capacitors for 3.3V single-supply operation. This charge pump and Exar’s driver architecture allow the SP3244E/3245E to deliver compliant RS-232 performance from a power supply ranging from +3.0V to +5.5V. At voltages between +2.7V and +3.0V the driver outputs are compliant with RS-562 and can interface to RS-232 in portable applications. The Auto On-Line® Plus feature allows the device to automatically enter a low power shutdown mode if all receiver and driver inputs have been idle for 30 seconds. The device will “wake-up” from this automatic shutdown state upon detecting activity. This power saving feature functions without system intervention or modifications to software or drivers.

技术特性

3个驱动器，5个接收器的RS-232收发器
比SP3244速度更快
与SP3243EU型器件相比增强了省电功能
高速1Mbps串行数据速率
如果Tx输入和Rx输入空闲超过30秒，Auto Online Plus™功能会自动将器件转为1μA关断模式
在总线上有传输时器件重新唤醒
不需要控制输入或软件驱动变化
在+3.0V～+5.5V供电下，满足实际的EIA/TIA-232-F需求
受调整的电荷泵，不管VCC如何变化，都有稳定输出
ESD规格:
- ±15KV人体模式
- ±15KV IEC1000-4-2气隙放电
- ±8KV IEC1000-4-2接触放电

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
SP3245ECA-L		0	70	Active
SP3245ECY-L		0	70	Active
SP3245EEA-L		-40	85	Active
SP3245EER1-L		-40	85	Active
SP3245EEY-L		-40	85	Active

技术指标

发送器数量(Tx)	3
接收器数量(Rx)	5
数据传输速率(kbps)	1000
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	False
TTL 三态	是

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
SP3245E 数据资料DataSheet下载:pdf	Rev.V2	2 页