TRS3238 具有 +/-15kV ESD (HBM) 保护的 3V 至 5.5V 多通道 RS-232 线路驱动器/接收器
The TRS3238 consists of five line drivers, three line receivers, and a dual charge-pump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, 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. This device operates at data signaling rates of 250 kbit/s in normal operating mode (MBAUD = GND) and 1Mbit/s when MBAUD = VCC. The driver output slew rate is a maximum of 30 V/us.
The TRS3238 transmitters are disabled and the outputs are forced into high-impedance state when the device is in shutdown mode (SHDN = GND) and the supply current falls to less than 1 uA. Also, during shutdown, the onboard charge pump is disabled; V+ is lowered to VCC, and V– is raised toward GND. Receiver outputs also can be placed in the high-impedance state by setting enable (EN) high. ROUT1B remains active all the time, regardless of the EN and SHDN condition.
The TRS3238C is characterized for operation from 0°C to 70°C. The TRS3238I is characterized for operation from –40°C to 85°C
| TRS3238 | |
| Data Rate(kbps) | 250 |
| Drivers Per Package | 5 |
| Receivers Per Package | 3 |
| ESD HBM(kV) | +/-15 |
| Supply Voltage(s)(V) | 3.3 or 5.0 |
| ICC(Max)(mA) | 2 |
| Operating Temperature Range(°C) | -40 to 85,0 to 70 |
| Pin/Package | 28TSSOP |
| Approx. Price (US$) | 1.20 | 1ku |
| Rating | Catalog |
| Footprint | MAX3238 |
TRS3238 特性
- RS-232 Bus-Pin 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
- Operates With 3-V to 5.5-V VCC Supply
- Operates up to 250 kbit/s
- Five Drivers and Three Receivers
- Low Standby Current . . . 1 uA Typical
- External Capacitors . . . 4 × 0.1 uF
- Accepts 5-V Logic Input With 3.3-V Supply
- Always-Active Noninverting Receiver Output (ROUT1B)
- Alternative High-Speed Pin-Compatible Device (1 Mbit/s)
- TRSF3238
- APPLICATIONS
- Battery-Powered Systems
- PDAs
- Notebooks
- Subnotebooks
- Laptops
- Palmtop PCs
- Hand-Held Equipment
- Modems
TRS3238 芯片订购指南
| 器件 | 状态 | 温度 | 价格 | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| TRS3238CPWR | ACTIVE | 0 to 70 | 1.10 | 1ku | TSSOP (PW) | 28 | 2000 | LARGE T&R | |
| TRS3238CPWRG4 | ACTIVE | -40 to 85 | 1.10 | 1ku | TSSOP (PW) | 28 | 2000 | LARGE T&R | |
| TRS3238CPWRR | ACTIVE | 0 to 70 | 0.90 | 1ku | TSSOP (PW) | 28 | 2000 | LARGE T&R | |
| TRS3238CPWRRG4 | ACTIVE | 0 to 70 | 0.90 | 1ku | TSSOP (PW) | 28 | 2000 | LARGE T&R |
TRS3238 质量与无铅数据
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| TRS3238CPWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | TRS3238CPWR | TRS3238CPWR |
| TRS3238CPWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | TRS3238CPWRG4 | TRS3238CPWRG4 |
| TRS3238CPWRR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | TRS3238CPWRR | TRS3238CPWRR |
| TRS3238CPWRRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | TRS3238CPWRRG4 | TRS3238CPWRRG4 |
TRS3238 应用技术支持与电子电路设计开发资源下载
- TRS3238 数据资料 dataSheet 下载.PDF
- TI 德州仪器RS-232 产品选型与价格 . xls
- Analog Signal Chain Guide (8.62 MB)
- Industrial Interface IC Solutions (101 KB)