MAX232是串口电平转换芯片，符合RS-232技术标准, 只需要单一 +5V电源供电。MAX232芯片中有两路发送、接收串行通信接口，需4个LUF电容配合,要保证电容极性连接正确。
MAX232主要的生产厂家有Maxim 和Texas Instruments，常用封装有SOIC16、16PDIP、16SOP等。 芯天下提供几乎所有MAX232系列产品。
| 型号 | 封装 | 包装 | 温度范围 | 工作电源电压 | 电源电流 | 标准包装 |
|---|---|---|---|---|---|---|
| MAX232C/D | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232CPE | Tube | PDIP-16 | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 25 |
| MAX232CPE+ | Tube | PDIP-16 | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 25 |
| MAX232CSE | Tube | SO-16 | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |
| MAX232CSE+ | Tube | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 50 |
| MAX232CSE+T | Tape & Reel | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 2500 |
| MAX232CSE-T | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232CWE | Tube | SO-16 | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 46 |
| MAX232CWE+ | Tube | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 1000 |
| MAX232CWE+T | Tape & Reel | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |
| MAX232CWE-G002 | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232CWE-T | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232CWE-TG002 | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232EC/D | Tube | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 40 |
| MAX232ECPE | Tube | 16-DIP | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 25 |
| MAX232ECPE+ | Tube | 16-DIP | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 25 |
| MAX232ECSE | Tube | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 50 |
| MAX232ECSE+ | Tube | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 50 |
| MAX232ECSE+T | Tape & Reel | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 2500 |
| MAX232ECSE-T | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232ECWE | Tube | SO-16 | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |
| MAX232ECWE+ | Tube | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 46 |
| MAX232ECWE+T | Tape & Reel | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 1000 |
| MAX232ECWE-T | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232EEPE | Tube | PDIP-16 | - 40 C to + 85 C | 4.5 V ~ 5.5 V | 10 mA | 25 |
| MAX232EESE | Tube | SO-16 | - 40 C to + 85 C | 4.5 V ~ 5.5 V | 10 mA | 50 |
| MAX232EESE+ | Tube | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 50 |
| MAX232EESE+T | Tape & Reel | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 2500 |
| MAX232EESE-T | Reel | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | ||
| MAX232EEWE | Tube | SO-16 | - 40 C to + 85 C | 4.5 V ~ 5.5 V | 10 mA | 46 |
| MAX232EEWE+ | Tube | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 46 |
| MAX232EEWE+T | Tape & Reel | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 1000 |
| MAX232EEWE-T | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232EJE | Tube | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | ||
| MAX232EMJE | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232EMLP | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232EPE | Tube | PDIP-16 | - 40 C to + 85 C | 4.5 V ~ 5.5 V | 10 mA | 25 |
| MAX232EPE+ | Tube | 16-DIP | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 25 |
| MAX232ESE | Tube | SO-16 | - 40 C to + 85 C | 4.5 V ~ 5.5 V | 10 mA | |
| MAX232ESE+ | Tube | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 50 |
| MAX232ESE+T | Tape & Reel | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 2500 |
| MAX232ESE-T | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232EWE | Tube | SO-16 | - 40 C to + 85 C | 4.5 V ~ 5.5 V | 10 mA | 46 |
| MAX232EWE+ | Tube | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 46 |
| MAX232EWE+T | Tape & Reel | 16-SOIC | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 1000 |
| MAX232EWE-T | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232MJE | Tube | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | ||
| MAX232MJE/883B | Tube | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | 25 | |
| MAX232MJE/HR | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232MLP/883B | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232MLP/HR | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232MLP | 0 C to + 70 C | 4.5 V ~ 5.5 V | 10 mA | |||
| MAX232MWE/PR | Bulk | SO-16 Wide | - 55 C to + 125 C | 4.5 V ~ 5.5 V | 10 mA | |
| MAX232MWEPR-T | Reel | - 55 C to + 125 C | 4.5 V ~ 5.5 V | 10 mA |
| 型号 | 封装 | 电源电压（最小值） | 电源电压（最大值） | 电源电流（最大值） | 工作温度 | 包装 | 引脚 | 安装方式 |
|---|---|---|---|---|---|---|---|---|
| MAX232DG4 | SOIC | 4.5 V | 5.5 V | 10 mA | 0C to +70C | 管装 | 16 | SMD/SMT |
| MAX232DRE4 | SOIC | 4.5 V | 5.5 V | 0C to +70C | 卷盘 | 16 | ||
| MAX232DRG4 | SOIC | 4.5 V | 5.5 V | 0C to +70C | 卷盘 | 16 | ||
| MAX232DWE4 | SOIC | 4.5 V | 5.5 V | 0C to +70C | 管装 | 16 | SMD/SMT | |
| MAX232DWG4 | SOIC | 4.5 V | 5.5 V | 0C to +70C | 管装 | 16 | SMD/SMT | |
| MAX232DWRE4 | SOIC | 4.5 V | 5.5 V | 0C to +70C | 卷盘 | 16 | ||
| MAX232DWRG4 | SOIC | 4.5 V | 5.5 V | 0C to +70C | 卷盘 | 16 | ||
| MAX232ECDG4 | SOIC | 4.5 V | 5.5 V | 8 mA | 0C to +70C | 管装 | 16 | SMD/SMT |
| MAX232ECDR | SOIC | 4.5 V | 5.5 V | 10 mA | 0C to +70C | 卷盘 | 16 | SMD/SMT |
| MAX232ECDRG4 | SOIC | 4.5 V | 5.5 V | 0C to +70C | 卷盘 | 16 | ||
| MAX232ECDW | SOIC | 4.5 V | 5.5 V | 10 mA | 0C to +70C | 管装 | 16 | SMD/SMT |
| MAX232ECDWG4 | SOIC | 4.5 V | 5.5 V | 8 mA | 0C to +70C | 管装 | 16 | SMD/SMT |
| MAX232ECDWR | SOIC | 4.5 V | 5.5 V | 8 mA | 0C to +70C | 卷盘 | 16 | SMD/SMT |
| MAX232ECDWRE4 | SOIC | 4.5 V | 5.5 V | 0C to +70C | 卷盘 | 16 | SMD/SMT | |
| MAX232ECDWRG4 | SOIC | 4.5 V | 5.5 V | 8 mA | 0C to +70C | 卷盘 | 16 | SMD/SMT |
| MAX232ECNE4 | PDIP | 4.5 V | 5.5 V | 10 mA | 0C to +70C | 管装 | 16 | Through Hole |
| MAX232ECPW | TSSOP | 4.5 V | 5.5 V | 10 mA | 0C to +70C | 管装 | 16 | SMD/SMT |
| MAX232ECPWG4 | TSSOP | 4.5 V | 5.5 V | 8 mA | 0C to +70C | 管装 | 16 | SMD/SMT |
| MAX232ECPWR | TSSOP | 4.5 V | 5.5 V | 8 mA | 0C to +70C | 卷盘 | 16 | SMD/SMT |
| MAX232ECPWRG4 | TSSOP | 4.5 V | 5.5 V | 8 mA | 0C to +70C | 卷盘 | 16 | SMD/SMT |
| MAX232EESE+ | SOIC | 4.5 V | 5.5 V | -40C to +85C | 管装 | 16 | SMD/SMT | |
| MAX232EIDG4 | SOIC | 4.5 V | 5.5 V | 8 mA | -40C to +85C | 管装 | 16 | SMD/SMT |
| MAX232EIDR | SOIC | 4.5 V | 5.5 V | 10 mA | -40C to +85C | 卷盘 | 16 | SMD/SMT |
| MAX232EIDRG4 | SOIC | 4.5 V | 5.5 V | 10 mA | -40C to +85C | 卷盘 | 16 | SMD/SMT |
| MAX232EIDW | SOIC | 4.5 V | 5.5 V | 10 mA | -40C to +85C | 管装 | 16 | SMD/SMT |
| MAX232EIDWG4 | SOIC | 4.5 V | 5.5 V | 10 mA | -40C to +85C | 管装 | 16 | SMD/SMT |
| MAX232EIDWR | SOIC | 4.5 V | 5.5 V | 8 mA | -40C to +85C | 卷盘 | 16 | |
| MAX232EIDWRG4 | SOIC | 4.5 V | 5.5 V | 8 mA | -40C to +85C | 卷盘 | 16 | |
| MAX232EIN | PDIP | 4.5 V | 5.5 V | 10 mA | -40C to +85C | 管装 | 16 | Through Hole |
| MAX232EINE4 | PDIP | 4.5 V | 5.5 V | 10 mA | -40C to +85C | 管装 | 16 | Through Hole |
| MAX232EIPW | TSSOP | 4.5V | 5.5 V | 8 mA | -40C to +85C | 管装 | 16 | SMD/SMT |
| MAX232EIPWG4 | TSSOP | 4.5 V | 5.5 V | 10 mA | -40C to +85C | 管装 | 16 | SMD/SMT |
| MAX232EIPWR | TSSOP | 4.5V | 5.5 V | 8 mA | -40C to +85C | 卷盘 | 16 | |
| MAX232EIPWRG4 | TSSOP | 4.5V | 5.5 V | 8 mA | -40C to +85C | 卷盘 | 16 | SMD/SMT |
| MAX232IDE4 | SOIC | 4.5V | 5.5 V | 10 mA | -40C to +85C | 管装 | 16 | SMD/SMT |
| MAX232IDG4 | SOIC | 4.5V | 5.5 V | 10 mA | -40C to +85C | 管装 | 16 | SMD/SMT |
| MAX232IDRG4 | SOIC | 4.5V | 5.5 V | -40C to +85C | 卷盘 | 16 | ||
| MAX232IDWE4 | SOIC | 4.5V | 5.5 V | -40C to +85C | 管装 | 16 | SMD/SMT | |
| MAX232IDWG4 | SOIC | 4.5V | 5.5 V | -40C to +85C | 管装 | 16 | SMD/SMT | |
| MAX232IDWRE4 | SOIC | 4.5V | 5.5 V | -40C to +85C | 卷盘 | 16 | ||
| MAX232IDWRG4 | SOIC | 4.5V | 5.5 V | -40C to +85C | 卷盘 | 16 | ||
| MAX232INE4 | PDIP | 4.5V | 5.5 V | 10 mA | -40C to +85C | 管装 | 16 | Through Hole |
| MAX232NE4 | PDIP | 4.5V | 5.5 V | 10 mA | 0C to +70C | 管装 | 16 | Through Hole |
| MAX232NSRE4 | SOP | 4.5V | 5.5 V | 0C to +70C | 卷盘 | 16 | ||
| MAX232NSRG4 | SOP | 4.5V | 5.5 V | 0C to +70C | 卷盘 | 16 | ||
| MAX232NSR | SOP | 4.5V | 5.5 V | 0C to +70C | 卷盘 | 16 |