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TRS3221E RS-232 Line Driver/Receiver

Texas Instruments TRS3221E RS-232 Line Driver/Receiver is a single driver, single receiver RS-232 solution operating from a single V_CC supply. The RS-232 pins provide IEC G1000-4-2 ESD protection. The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3V to 5.5V supply. The Texas Instruments TRS3221E operates at data signaling rates up to 250kbit/s and a maximum of 30V/µs driver output slew rate.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Mounting Style	Package / Case	Series	Function	Data Rate	Number of Drivers	Number of Receivers	Duplex	Supply Voltage - Max	Supply Voltage - Min	Operating Supply Current	Minimum Operating Temperature	Maximum Operating Temperature	ESD Protection	Packaging
	RS-232 Interface IC 3- to 5.5-V single c hannel 250kbps RS-2 TRS3221EIDYYR Texas Instruments 1: $1.22 1,916In Stock New Product	Mfr. Part # TRS3221EIDYYR Mouser Part # 595-TRS3221EIDYYR New Product	Texas Instruments	RS-232 Interface IC 3- to 5.5-V single c hannel 250kbps RS-2 Learn More about Texas Instruments ti trs3221e line driver receiver	Datasheet	1,916In Stock	Cut Tape $1.22 $0.872 $0.785 $0.691 View Reel $0.599 $0.646 $0.618 $0.599 $0.599	Min.: 1 Mult.: 1 Max.: 1,001 : 3,000			SMD/SMT	SOT-23-16	TRS3221E	Transceiver	250 kb/s	1 Driver	1 Receiver		5.5 V	3 V	1 uA	- 40 C	+ 85 C	15 kV	Reel, Cut Tape
	RS-232 Interface IC 3V-5.5V Sgl-Channel RS232 Line Drvr/Rcvr A 595-TRS3221EIDB TRS3221EIDBR Texas Instruments 1: $1.51 3,174In Stock 4,000Expected 1/28/2027	Mfr. Part # TRS3221EIDBR Mouser Part # 595-TRS3221EIDBR	Texas Instruments	RS-232 Interface IC 3V-5.5V Sgl-Channel RS232 Line Drvr/Rcvr A 595-TRS3221EIDB Learn More about Texas Instruments ti trs3221e line driver receiver	Datasheet	3,174In Stock 4,000Expected 1/28/2027	Cut Tape $1.51 $1.11 $1.00 $0.888 Reel $0.732 View $0.834 $0.802 $0.793 $0.718 MouseReel Available	Min.: 1 Mult.: 1 : 2,000			SMD/SMT	SSOP-16	TRS3221E	Transceiver	250 kb/s	1 Driver	1 Receiver	Full Duplex	5.5 V	3 V	1 mA	- 40 C	+ 85 C	15 kV	Reel, Cut Tape, MouseReel
	RS-232 Interface IC 3V-5.5V Sgl-Channel RS232 Line Drvr/Rcvr A 595-TRS3221EIPW TRS3221EIPWR Texas Instruments 1: $1.56 6,399In Stock 14,000Expected 12/3/2026	Mfr. Part # TRS3221EIPWR Mouser Part # 595-TRS3221EIPWR	Texas Instruments	RS-232 Interface IC 3V-5.5V Sgl-Channel RS232 Line Drvr/Rcvr A 595-TRS3221EIPW Learn More about Texas Instruments ti trs3221e line driver receiver	Datasheet	6,399In Stock 14,000Expected 12/3/2026	Cut Tape $1.56 $1.14 $1.03 $0.912 View Reel $0.84 $0.867 $0.85 $0.841 $0.84 MouseReel Available	Min.: 1 Mult.: 1 : 2,000			SMD/SMT	TSSOP-16	TRS3221E	Transceiver	250 kb/s	1 Driver	1 Receiver	Full Duplex	5.5 V	3 V	1 mA	- 40 C	+ 85 C	15 kV	Reel, Cut Tape, MouseReel
	RS-232 Interface IC 3- to 5.5-V single c hannel 250kbps RS-2 TRS3221EIRGTR Texas Instruments 1: $1.46 A tariff of 38% may be applied if shipping to the United States. 20,097In Stock	Mfr. Part # TRS3221EIRGTR Mouser Part # 595-TRS3221EIRGTR	Texas Instruments	RS-232 Interface IC 3- to 5.5-V single c hannel 250kbps RS-2 Learn More about Texas Instruments ti trs3221e line driver receiver	Datasheet	20,097In Stock	Cut Tape $1.46 $1.06 $0.958 $0.847 Reel $0.706 View $0.795 $0.763 $0.734 $0.69 MouseReel Available A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	VQFN-16	TRS3221E	Transceiver	500 kb/s	1 Driver	1 Receiver	Full Duplex	5.5 V	3 V	1 mA	- 40 C	+ 85 C	15 kV	Reel, Cut Tape, MouseReel
	RS-232 Interface IC 3V-5.5V Sgl-Channel RS232 Line Drvr/Rcvr A 595-TRS3221ECPW TRS3221ECPWR Texas Instruments 1: $1.42 1,093In Stock 6,000Expected 12/24/2026	Mfr. Part # TRS3221ECPWR Mouser Part # 595-TRS3221ECPWR	Texas Instruments	RS-232 Interface IC 3V-5.5V Sgl-Channel RS232 Line Drvr/Rcvr A 595-TRS3221ECPW Learn More about Texas Instruments ti trs3221e line driver receiver	Datasheet	1,093In Stock 6,000Expected 12/24/2026	Cut Tape $1.42 $1.03 $0.93 $0.821 Reel $0.685 View $0.77 $0.739 $0.706 $0.669 MouseReel Available	Min.: 1 Mult.: 1 : 2,000			SMD/SMT	TSSOP-16	TRS3221E	Transceiver	250 kb/s	1 Driver	1 Receiver	Full Duplex	5.5 V	3 V	1 mA	0 C	+ 70 C	15 kV	Reel, Cut Tape, MouseReel
	RS-232 Interface IC 3V-5.5V Sgl-Channel RS232 Line Drvr/Rcvr A 595-TRS3221ECDB TRS3221ECDBR Texas Instruments 1: $1.42 3,967Expected 12/17/2026	Mfr. Part # TRS3221ECDBR Mouser Part # 595-TRS3221ECDBR	Texas Instruments	RS-232 Interface IC 3V-5.5V Sgl-Channel RS232 Line Drvr/Rcvr A 595-TRS3221ECDB Learn More about Texas Instruments ti trs3221e line driver receiver	Datasheet	3,967Expected 12/17/2026	Cut Tape $1.42 $1.03 $0.93 $0.821 Reel $0.685 View $0.77 $0.739 $0.706 $0.669 MouseReel Available	Min.: 1 Mult.: 1 : 2,000			SMD/SMT	SSOP-16	TRS3221E	Transceiver	250 kb/s	1 Driver	1 Receiver	Full Duplex	5.5 V	3 V	1 mA	0 C	+ 70 C	15 kV	Reel, Cut Tape, MouseReel