TRS3253E 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 TRS3253E is a three-driver and five-receiver RS-232 interface device, with split supply pins for mixed-signal operations. All RS-232 inputs and outputs are protected to ±8 kV using the IEC 61000-4-2 Air-Gap Discharge method, ±8 kV using the IEC 61000-4-2 Contact Discharge method, and ±15 kV using the Human-Body Model.

The charge pump requires only four small 0.1-µF capacitors for operation from a 3.3-V supply. The TRS3253E is capable of running at data rates up to 1000 kbps, while maintaining RS-232-compliant output levels.

The TRS3253E has a unique VL pin that allows operation in mixed-logic voltage systems. Both driver in (DIN) and receiver out (ROUT) logic levels are pin programmable through the VL pin. This eliminates the need for additional voltage level shifter while interfacing with low-voltage microcontroller or UARTs. The TRS3253E is available in a space-saving QFN package (4 mm × 4 mm RSM).

Auto-powerdown plus can be disabled when FORCEON and FORCEOFF are high. With auto-powerdown plus enabled, the device activates automatically when a valid signal is applied to any receiver or driver input. INVALID is high (valid data) if any receiver input voltage is greater than 2.7 V or less than –2.7 V, or has been between –0.3 V and 0.3 V for less than 30 µs. INVALID is low (invalid data) if all receiver input voltages are between –0.3 V and 0.3 V for more than 30 µs. Refer to for receiver input levels

TRS3253E
Data Rate(kbps) 1000  
Drivers Per Package 3  
Receivers Per Package 5  
ESD HBM(kV) +/-15  
Supply Voltage(s)(V) 3.3 or 5.0 & 1.8  
ICC(Max)(mA) 1  
Operating Temperature Range(°C) -40 to 85  
Pin/Package 32VQFN  
Approx. Price (US$) 1.50 | 1ku  
Rating Catalog
TRS3253E 特性
TRS3253E 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
TRS3253EIRSMR ACTIVE -40 to 85 1.50 | 1ku VQFN (RSM) | 32 3000 | LARGE T&R  
TRS3253E 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
TRS3253EIRSMR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR TRS3253EIRSMR TRS3253EIRSMR
TRS3253E 应用技术支持与电子电路设计开发资源下载
  1. TRS3253E 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器RS-232 产品选型与价格 . xls
  3. Analog Signal Chain Guide (8.62 MB)
  4. Industrial Interface IC Solutions (101 KB)