MAX221E：±15kV ESD保护、+5V、1µA、单路RS-232收发器，带有AutoShutdown
业内尺寸最小的低功耗、单通道RS-232收发器，具有±15kV ESD保护
The MAX221E is a +5V powered, single transmit/receive RS-232 and V.28 communications interface with automatic shutdown/wake-up features and high data rate capabilities. The MAX221E features enhanced electrostatic discharge (ESD) protection. Both the transmitter output and receiver input are protected to ±15kV using the IEC 1000-4-2 Air-Gap Discharge Method, to ±8kV using the IEC 1000-4-2 Contact Discharge Method, and to ±15kV using the Human Body Model. The MAX221E achieves a low 1µA supply current with Maxim's revolutionary AutoShutdown™ feature. AutoShutdown saves power without changes to the existing BIOS or operating system by entering low-power shutdown mode when the RS-232 cable is disconnected or when the transmitter of the connected peripheral is off. The MAX221E wakes up and drives the active-low INVALID pin high when an active RS-232 cable is connected, signaling the host that a peripheral is connected to the communications port. The MAX221E is available in a 16-pin SSOP package as well as a 16-pin TSSOP that uses 50% less board space than a 16-pin SO.
关键特性
| MAX221E：典型工作电路 应用
|
数据手册DataSheet
| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | MAX221E.pdf | Rev 0; 08/1999 |
关键参数
| Part Number | VSUPPLY (V) | Tx | Rx | Data Rate (kbps) | ICC (mA) | Internal Charge Pump | Ext. Caps | Cap. Value (µF) | ESD Protect. (±kV) | Rx Active in Shutdn | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | typ | nom | See Notes | |||||||||
| MAX221E | 5 | 1 | 1 | 250 | 5 | Yes | 4 | 0.1 | 15 | 1 |
| $1.70 @1k |
技术资料
- Determining Clock Accuracy Requirements for UART Communications
- RS-232 Features Explained
- Selecting and using RS-232 Interface Parts for Your Power Supply Voltages
- Design Considerations for Data-Lump Cables
质量和环境数据
相关产品
- MAX221：+5V、1µA、单路RS-232收发器，带有AutoShutdown
- MAX3226：1µA电源电流、1Mbps、3.0V至5.5V、RS-232收发器，提供AutoShutdown Plus
- MAX3227：1µA电源电流、1Mbps、3.0V至5.5V、RS-232收发器，提供AutoShutdown Plus
- MAX3226E：±15kV ESD保护、1µA、1Mbps、3.0V至5.5V、RS-232收发器，提供AutoShutdown Plus
- MAX3221E：±15kV ESD保护、1µA、3.0V至5.5V、250kbps RS-232收发器，带有AutoShutdown
- MAX3227E：±15kV ESD保护、1µA、1Mbps、3.0V至5.5V、RS-232收发器，提供AutoShutdown Plus
- MAX3221：1µA电源电流、+3V至+5.5V、真RS-232收发器，带有AutoShutdown
订购型号
| 型号 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
|---|---|---|---|---|---|
| MAX221ECAE | 停止供货 | MAX221ECAE+ | SSOP,；16引脚；50mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX221ECAE+ | 生产中 | SSOP,；16引脚；50mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX221ECAE+T | 生产中 | SSOP,；16引脚；50mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX221ECAE-T | 停止供货 | MAX221ECAE+T | SSOP；16引脚 | 0°C至+70°C | 参考数据资料 |
| MAX221ECUE | 停止供货 | MAX221ECUE+ | TSSOP,；16引脚；33.4mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX221ECUE+ | 生产中 | TSSOP,；16引脚；33.4mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX221ECUE+T | 生产中 | TSSOP,；16引脚；33.4mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX221ECUE-T | 停止供货 | MAX221ECUE+T | TSSOP,；16引脚；33.4mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX221EEAE | 停止供货 | MAX221EEAE+ | SSOP,；16引脚；50mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX221EEAE+ | 生产中 | SSOP,；16引脚；50mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| 型号 | 状况 | 推荐替代产品 | 封装：类型 引脚 占位面积封装图 编码/变更 * | 温度 | RoHS/无铅？ |
| MAX221EEAE+T | 生产中 | SSOP,；16引脚；50mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX221EEAE-T | 停止供货 | MAX221EEAE+T | SSOP,；16引脚；50mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX221EEUE | 停止供货 | MAX221EEUE+ | TSSOP,；16引脚；33.4mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX221EEUE+ | 生产中 | TSSOP,；16引脚；33.4mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX221EEUE+T | 生产中 | TSSOP,；16引脚；33.4mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX221EEUE-T | 停止供货 | MAX221EEUE+T | TSSOP,；16引脚；33.4mm² | -40°C至+85°C | RoHS/无铅：否 |
- MAX221E.pdf MAX221E
- MAX221E.pdf MAX221E
- MAX221E.pdf MAX221E
- Determining Clock Accuracy Requirements for UART Communications MAX3206E
- RS-232 Features Explained MAX3381E
- Selecting and using RS-232 Interface Parts for Your Power Supply Voltages MAX3387E
- Design Considerations for Data-Lump Cables MAX3387E
- MAX221E.pdf MAX221E
- MAX221E.pdf MAX221E
