MAX221：+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
The MAX221 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 MAX221 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 MAX221 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 MAX221 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. For an equivalent RS-232 transceiver with enhanced ±15kV ESD protection, refer to the MAX221E data sheet.
关键特性
| MAX221：典型工作电路 应用
|
数据手册DataSheet
| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | MAX221.pdf | Rev 0; 05/2000 |
关键参数
| Part Number | VSUPPLY (V) | Tx | Rx | Data Rate (kbps) | ICC (mA) | Internal Charge Pump | Ext. Caps | Cap. Value (µF) | Rx Active in Shutdn | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|
| min | typ | nom | See Notes | ||||||||
| MAX221 | 5 | 1 | 1 | 250 | 5 | Yes | 4 | 0.1 | 1 |
| $1.56 @1k |
技术资料
质量和环境数据
相关产品
- MAX221E：±15kV ESD保护、+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 |
|---|---|---|---|---|---|
| MAX221CAE | 停止供货 | MAX221CAE+ | SSOP,；16引脚；50mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX221CAE+ | 生产中 | SSOP,；16引脚；50mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX221CAE+T | 生产中 | SSOP,；16引脚；50mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX221CAE-T | 停止供货 | MAX221CAE+T | SSOP,；16引脚；50mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX221CUE | 停止供货 | MAX221CUE+ | TSSOP,；16引脚；33.4mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX221CUE+ | 生产中 | TSSOP,；16引脚；33.4mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX221CUE+T | 生产中 | TSSOP,；16引脚；33.4mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX221CUE-T | 停止供货 | MAX221CUE+T | TSSOP,；16引脚；33.4mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX221EAE | 停止供货 | MAX221EAE+ | SSOP,；16引脚；50mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX221EAE+ | 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？ |
| MAX221EAE+T | 生产中 | SSOP,；16引脚；50mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX221EAE-T | 停止供货 | MAX221EAE+T | SSOP；16引脚 | -40°C至+85°C | 参考数据资料 |
| MAX221EUE | 停止供货 | MAX221EUE+ | TSSOP,；16引脚；33.4mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX221EUE+ | 生产中 | TSSOP,；16引脚；33.4mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX221EUE+T | 生产中 | TSSOP,；16引脚；33.4mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX221EUE-T | 停止供货 | MAX221EUE+T | TSSOP,；16引脚；33.4mm² | -40°C至+85°C | RoHS/无铅：否 |
- MAX221.pdf MAX221
- MAX221.pdf MAX221
- MAX221.pdf MAX221
- Determining Clock Accuracy Requirements for UART Communications MAX3206E
- MAX221.pdf MAX221
- MAX221.pdf MAX221
