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EIA-232-D INTERFACE 1 CHIP IC Description

The HT75232 are monolithic device containing 3 independent drives and 5 receivers. These are designed to interface between date terminal equipment and date communication equipment as designed by EIA-232- D.

Features

• Meets standard EIA-232-D (Revision of RS-232-C)

• Designed to Support Data Rate up to 120kbps

• Drivers
  - Current Limited Output 10 mA Typical - Power-off Output Impedance 300 Ω Min

  - Slew Rate Control by Load Capacitor
  - Flexible Supply Voltage Range
  - Input Compatible with Most TTL and DTL Circuits
  • Receivers
  - Input Resistance 3 kΩ to 7 kΩ
  - Input Signal Range ± 30 V
  - Built-in Input Hysteresis (Double Threshold)
  • The transmitter outputs and receiver inputs are

  protected to ±15kV Air ESD.