TRS3243 - Texas Instruments

TRS3243 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver

The TRS3243 device consists of three line drivers, and five line receivers, which is ideal for DE-9 DTE interface. A ±15-kV ESD (HBM) protection pin-to-pin (serial-port connection pins, including GND). Flexible power features save power automatically. Special outputs ROUT2B and INVALID are always enabled to allow checking for ring indicator and valid RS232 .

Features

• Operates with 3-V to 5.5-V VCC supply
• Single-chip and single-supply interface for IBM® PC/AT™ serial port
• RS-232 bus-pin ESD protection of ±15 kV using human-body model (HBM)
• Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards
• Three drivers and five receivers
• Operates up to 250 kbps
• Low active current: 300-μA typical
• Low standby current: 1-μA typical
• External capacitors: 4 × 0.1 μF
• Accepts 5-V logic input with 3.3-V supply
• Always-active noninverting receiver output (ROUT2B)
• Operating temperature
  – TRS3243C: 0°C to 70°C
  – TRS3243I:
  –40°C to 85°C
• S.