RS232接口芯片 RS232收发器 RS232双收发器 MAX3232特性说明 SP3232特性描述
发布时间：2018/1/6
?MAX3232E
±15kV ESD保护、电流低至10nA、3.0V至5.5V供电、速率高达1Mbps的真RS-232收发器 - Maxim
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±15kV ESD保护、电流低至10nA、3.0V至5.5V供电、速率高达1Mbps的真RS-232收发器 - Maxim
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?说明
?MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E为+3.0V供电的EIA/TIA-232和V.28/V.24通信接口芯片，具有低功耗、高数据速率、增强型ESD保护等特性。增强型ESD结构为所有发送器输出和接收器输入提供保护，可承受±15kV IEC 1000-4-2气隙放电、±8kV
IEC 1000-4-2接触放电(MAX3246E为±9kV)和±15kV人体放电模式。MAX3237E的逻辑引脚及接收器I/O引脚均提供上述保护，而它的发送器输出引脚提供±15kV人体放电模式的保护。
采用专有的低压差发送输出级，+3.0V至+5.5V供电时利用内部双电荷泵提供真正的RS-232性能。工作于+3.3V电源时，电荷泵仅需要四个0.1μF的小电容。每款器件保证在250kbps数据速率下维持RS-232输出电平。MAX3237E确保标准工作模式下提供250kbps的数据速率、在MegaBaud?工作模式下速率高达1Mbps。
MAX3222E/MAX3232E包括两个发送器和两个接收器；MAX3222E具有1μA关断模式，可降低电池供电便携式系统的功耗。关断模式下，MAX3222E接收器仍保持有效状态，允许监视外设，而且仅消耗1μA的电源电流。MAX3222E和MAX3232E的引脚、封装和功能分别兼容于工业标准的MAX242和MAX232。
MAX3241E/MAX3246E提供完备的串口(3个驱动器/5个接收器)，专为笔记本电脑和亚笔记本电脑设计。MAX3237E (5个驱动器/3个接收器)非常适合要求高速数据传输的外围设备。这些器件都具有关断模式，此模式下所有接收器仍保持有效状态，而且仅消耗1μA (MAX3241E/MAX3246E)或10nA (MAX3237E)的电流。
MAX3222E、MAX3232E和MAX3241E都具有节省空间的SO、SSOP、TQFN及TSSOP封装，MAX3237E提供SSOP封装，MAX3246E提供超小型6 x 6 UCSP?封装。
IEC 1000-4-2接触放电(MAX3246E为±9kV)和±15kV人体放电模式。MAX3237E的逻辑引脚及接收器I/O引脚均提供上述保护，而它的发送器输出引脚提供±15kV人体放电模式的保护。
采用专有的低压差发送输出级，+3.0V至+5.5V供电时利用内部双电荷泵提供真正的RS-232性能。工作于+3.3V电源时，电荷泵仅需要四个0.1μF的小电容。每款器件保证在250kbps数据速率下维持RS-232输出电平。MAX3237E确保标准工作模式下提供250kbps的数据速率、在MegaBaud?工作模式下速率高达1Mbps。
MAX3222E/MAX3232E包括两个发送器和两个接收器；MAX3222E具有1μA关断模式，可降低电池供电便携式系统的功耗。关断模式下，MAX3222E接收器仍保持有效状态，允许监视外设，而且仅消耗1μA的电源电流。MAX3222E和MAX3232E的引脚、封装和功能分别兼容于工业标准的MAX242和MAX232。
MAX3241E/MAX3246E提供完备的串口(3个驱动器/5个接收器)，专为笔记本电脑和亚笔记本电脑设计。MAX3237E (5个驱动器/3个接收器)非常适合要求高速数据传输的外围设备。这些器件都具有关断模式，此模式下所有接收器仍保持有效状态，而且仅消耗1μA (MAX3241E/MAX3246E)或10nA (MAX3237E)的电流。
MAX3222E、MAX3232E和MAX3241E都具有节省空间的SO、SSOP、TQFN及TSSOP封装，MAX3237E提供SSOP封装，MAX3246E提供超小型6 x 6 UCSP?封装。
?MAX3222E、MAX3232E、MAX3237E、MAX3241E、MAX3246E：典型工作电路 放大+ × MAX3222E、MAX3232E、MAX3237E、MAX3241E、MAX3246E：典型工作电路
?关键特性
?对于空间受限的应用
–MAX3228E/MAX3229E：±15kV ESD保护，+2.5V至+5.5V、RS-232收发器，UCSP封装
?对于低电压或数据电缆应用
–MAX3380E/MAX3381E：+2.35V至+5.5V、1μA，2Tx/2Rx、RS-232收发器，带有±15kV
ESD保护的I/O和逻辑引脚
ESD保护的I/O和逻辑引脚
?应用
?电池供电设备
?蜂窝电话数据电缆
?蜂窝电话/智能电话
?笔记本电脑、亚笔记本电脑与掌上电脑
?打印机
?xDSL调制解调器
EXAR -- SP3232E
?SP3232E
?True +3.0V to +5.5V RS-232 Transceivers
?Description
?The
SP3222E/3232E series is an RS-232 transceiver solution intended for portable or
hand- held applications such as notebook or palmtop computers. The
SP3222E/3232E series has a high-efficiency, charge-pump power supply that
requires only 0.1μF capacitors in 3.3V operation. This charge pump allows the
SP3222E/3232E series to deliver true RS-232 performance from a single power
supply ranging from +3.3V to +5.0V. The SP3222E/3232E are 2-driver/2-receiver
devices. This series is ideal for portable or hand-held applications such as
notebook or palmtop computers. The ESD tolerance of the SP3222E/3232E devices
are over ±15kV for both Human Body Model and IEC1000-4-2 Air discharge test
methods. The SP3222E device has a low-power shutdown mode where the devices’
driver outputs and charge pumps are disabled. During shutdown, the supply
current falls to less than 1μA.
For technical support or help choosing a product please email Exar’s Serial Technical
Support group at: serialtechsupport@exar.com.
SP3222E/3232E series is an RS-232 transceiver solution intended for portable or
hand- held applications such as notebook or palmtop computers. The
SP3222E/3232E series has a high-efficiency, charge-pump power supply that
requires only 0.1μF capacitors in 3.3V operation. This charge pump allows the
SP3222E/3232E series to deliver true RS-232 performance from a single power
supply ranging from +3.3V to +5.0V. The SP3222E/3232E are 2-driver/2-receiver
devices. This series is ideal for portable or hand-held applications such as
notebook or palmtop computers. The ESD tolerance of the SP3222E/3232E devices
are over ±15kV for both Human Body Model and IEC1000-4-2 Air discharge test
methods. The SP3222E device has a low-power shutdown mode where the devices’
driver outputs and charge pumps are disabled. During shutdown, the supply
current falls to less than 1μA.
For technical support or help choosing a product please email Exar’s Serial Technical
Support group at: serialtechsupport@exar.com.
?Features
?Meets
true EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply
true EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply
?Minimum
120Kbps Data Rate Under Full Load
120Kbps Data Rate Under Full Load
?Interoperable
with RS-232 down to +2.7V power source
with RS-232 down to +2.7V power source
?Enhanced
ESD Specifications:
ESD Specifications:
–±15kV
Human Body Model
Human Body Model
–±15kV
IEC1000-4-2 Air Discharge
IEC1000-4-2 Air Discharge
–±8kV
IEC1000-4-2 Contact Discharge
IEC1000-4-2 Contact Discharge
?
TI -- MAX3232
3V 至 5.5V 多通道 RS-232 线路驱动器/接收器
3V 至 5.5V 多通道 RS-232 线路驱动器/接收器
?备选器件推荐
?TRS3232E - The
device has the SAME FUNCTIONALITY/PINOUT as the compared device but includes
enhanced IEC61000-4-2 ESD Protection. TI Recommends the TRS3232E in new designs
device has the SAME FUNCTIONALITY/PINOUT as the compared device but includes
enhanced IEC61000-4-2 ESD Protection. TI Recommends the TRS3232E in new designs
?描述
?The MAX3232 device
consists of two line drivers, two line receivers, and a dual charge-pump
circuit with ±15-kV ESD protection terminal to terminal (serial-port connection
terminals, including GND). The device meets the requirements of TIA/EIA-232-F
and provides the electrical interface between an asynchronous communication
controller and the serial-port connector. The charge pump and four small
external capacitors allow operation from a single 3-V to 5.5-V supply. The
devices operate at data signaling rates up to 250 kbit/s and a maximum of
30-V/μs driver output slew rate.
consists of two line drivers, two line receivers, and a dual charge-pump
circuit with ±15-kV ESD protection terminal to terminal (serial-port connection
terminals, including GND). The device meets the requirements of TIA/EIA-232-F
and provides the electrical interface between an asynchronous communication
controller and the serial-port connector. The charge pump and four small
external capacitors allow operation from a single 3-V to 5.5-V supply. The
devices operate at data signaling rates up to 250 kbit/s and a maximum of
30-V/μs driver output slew rate.
?特性
?RS-232 Bus-Terminal
ESD Protection Exceeds
±15 kV Using Human-Body Model (HBM)
ESD Protection Exceeds
±15 kV Using Human-Body Model (HBM)
?Meets or Exceeds the
Requirements of TIA/EIA-232-F and ITU V.28 Standards
Requirements of TIA/EIA-232-F and ITU V.28 Standards
?Operates With 3-V to
5.5-V VCC
Supply
5.5-V VCC
Supply
?Operates up to 250 kbit/s
?Two Drivers and Two
Receivers
Receivers
?Low Supply Current:
300 μA Typical
300 μA Typical
?External Capacitors:
4 × 0.1 μF
4 × 0.1 μF
?Accepts 5-V Logic
Input With 3.3-V Supply
Input With 3.3-V Supply
?Alternative
High-Speed Terminal-Compatible Devices (1 Mbit/s)
High-Speed Terminal-Compatible Devices (1 Mbit/s)
–SN65C3232
(–40°C to 85°C)
(–40°C to 85°C)
–SN75C3232
(0°C to 70°C)
(0°C to 70°C)
?All trademarks are
the property of their respective owners.
the property of their respective owners.
?其它合格版本
MAX3232
MAX3232
