المواصفات
الشركة المصنعة: STMicroelectronics
Device Type: Dual-channel full-duplex RS232 transceiver chip
Suffix explanation: TR stands for tape-and-reel packaging for automated SMT mounting
Package: 16-pin TSSOP surface-mount package
المواصفات الكهربائية الأساسية
- Supply voltage: 4.5 V ~ 5.5 V (single 5V power supply only)
- Typical maximum baud rate: 220 kbps
- No-load quiescent current: 5 mA typical
- Output voltage swing: ±7.8 V typical
- Receiver withstand input voltage: ±30 V
- Operating temperature range: 0 ℃ ~ 70 ℃ commercial grade
- External peripheral requirement: Only four 0.1 μF ceramic capacitors needed for internal charge pump
Main Features
- Built-in charge pump circuit, generates RS232 positive and negative level voltages without external ±12V power rails
- Two transmit drivers and two receiving channels, fully compliant with EIA/TIA-232 and V.28 serial communication standards
- Controlled slew rate design reduces electromagnetic radiation interference during signal switching
- Pin-to-pin compatible with MAX232 industry standard chip, easy replacement
- Robust input protection structure improves circuit anti-surge capability
سيناريوهات التطبيق النموذجية
Industrial control serial communication ports
MCU UART to RS232 level conversion modules
POS terminals, barcode scanning equipment
Low-power serial modems
Portable measuring instruments and testing devices
Embedded equipment debugging serial interfaces
Multi-node RS232 bus networking systems
