UPD4724

Features:

 Based on EIA/TIA-232-E (RS-232-C) standard.
 Single power supply: +3.3 V or +5 V (selectable with the VCHA pin)
  Standby mode: Setting the standby pin to low level switches this IC into the standby mode and makesthe driver outputs high-impedance.
  Enable mode: When the enable pin is high level during the standby mode, two receivers can operate as inverterswithout hysteresis width (The other three receivers are fixed to high level).


Pinout




Specifications

Parameter	Symbol	Ratings	Unit
Supply Voltage (VCHA = L)	VCC	0.5 to +7.0	V
Supply Voltage (VCHA = H)	VCC	0.5 to +4.5	V
Driver Input Voltage	DIN	0.5 to VCC +0.5	V
Receiver Input Voltage	RIN	30.0 to +30.0	V
Control Input Voltage(STBY,VCHA,EN)	VIN	0.5 to VCC +0.5	V
Driver Output Voltage	DOUT	25.0 to +25.0Note	V
Receiver Output Voltage	ROUT	0.5 to V +0.5	V
Input Current (DIN, STBY,VCHA, EN)	IIN	±20.0	mA
Operating Ambient Temperature	TA	40 to +85	°C
Storage Temperature	Tstg	55 to +150	°C
Total Power Dissipation	PT	0.5	W

Description

 The PD4724 is a high breakdown voltage silicon gate CMOS line driver/receiver based on the EIA/TIA232Estandard. This IC features various functions, such as standby, and incorporates a DC/DCconverterthatswitchesboostmultiples,enabling operation at both +3.3 V and +5 V single supply voltage.

  The PD4724 incorporates three drivers and five receivers, so an RS-232 interface circuit can be easily constructedby connecting five external capacitors.