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3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver With +/-15kV ESD (HBM) Protection


Package | PIN: DW | 28
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $2.30
10-24 $2.06
25-99 $1.91
100-249 $1.67
250-499 $1.54
500-749 $1.29
750-999 $1.06
1000+ $0.97


  • 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 kbit/s
  • 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
    • MAX3243C: 0°C to 70°C
    • MAX3243I: –40°C to 85°C
  • Serial-Mouse Driveability
  • Auto-Powerdown Feature to Disable Driver
    Outputs When No Valid RS-232 Signal Is

Texas Instruments  MAX3243IDWR

The MAX3243 device consists of three line drivers, five line receivers which is ideal for DE-9 DTE interface. ±15-kV ESD (HBM) protection pin to pin (serial- port connection pins, including GND). Flexible power features saves power automatically. Special outputs ROUT2B and INVALID are always enabled to allow checking for ring indicator and valid RS232 input.