TRSF3238E 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 TRSF3238E consists of two line drivers, two line receivers, and a dual charge-pump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, including GND). This 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. The TRSF3238E operates at typical data signaling rates up to 1000 kbit/s.

Flexible control options for power management are available when the serial port is inactive. The auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of operation, if the device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFF is set low and EN is high, both drivers and receivers are shut off, and the supply current is reduced to 1 mA. Disconnecting the serial port or turning off the peripheral drivers causes auto-powerdown to occur. Auto-powerdown can be disabled when FORCEON and FORCEOFF are high. With auto-powerdown enabled, the device is automatically activated when a valid signal is applied to any receiver input. The INVALID output is used to notify the user if an RS-232 signal is present at any receiver 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 the receiver input voltage is between -0.3 V and 0.3 V for more than 30 µ

TRSF3238E
Data Rate(kbps) 1000  
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 28SOIC, 28SSOP  
Approx. Price (US$) 1.45 | 1ku  
Rating Catalog  
Footprint MAX3238
TRSF3238E 特性
TRSF3238E 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
TRSF3238ECDB ACTIVE 0 to 70 1.10 | 1ku SSOP (DB) | 28 80 | TUBE  
TRSF3238ECDBG4 ACTIVE -40 to 85 1.10 | 1ku SSOP (DB) | 28 80 | TUBE  
TRSF3238ECDBR ACTIVE 0 to 70 0.90 | 1ku SSOP (DB) | 28 2000 | LARGE T&R  
TRSF3238ECDBRG4 ACTIVE 0 to 70 0.90 | 1ku SSOP (DB) | 28 2000 | LARGE T&R  
TRSF3238E 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
TRSF3238ECDB Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM TRSF3238ECDB TRSF3238ECDB
TRSF3238ECDBG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM TRSF3238ECDBG4 TRSF3238ECDBG4
TRSF3238ECDBR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM TRSF3238ECDBR TRSF3238ECDBR
TRSF3238ECDBRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM TRSF3238ECDBRG4 TRSF3238ECDBRG4
TRSF3238E 应用技术支持与电子电路设计开发资源下载
  1. TRSF3238E 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)