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TRSF3221E RS232 1Mbit/s Line Driver/Receiver

Texas Instruments TRSF3221E RS232 1Mbit/s Line Driver/Receiver consists of one line driver, one line receiver, and a dual charge-pump circuit with ±15kV IEC ESD protection pin to pin (serial-port connection pins, including GND). The TRSF3221E 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 TRSF3221E operates at data signaling rates up to 1Mbit/s and a driver output slew rate of 24V/µs to 150V/µs.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) 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 1Mbps RS-232 TRSF3221EIDYYR Texas Instruments 1: S/ 8.52 1,885In Stock New Product	Mfr. Part # TRSF3221EIDYYR Mouser Part # 595-TRSF3221EIDYYR New Product	Texas Instruments	RS-232 Interface IC 3- to 5.5-V single c hannel 1Mbps RS-232 Learn More about Texas Instruments ti trsf3221e rs232 line driver receiver	Datasheet	1,885In Stock	Cut Tape S/ 8.52 S/ 6.31 S/ 5.72 S/ 5.10 Reel S/ 4.44 View S/ 4.83 S/ 4.63 S/ 4.48 S/ 4.40 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	SOT-23-16	TRSF3221E	Transceiver	1 Mb/s	1 Driver	1 Receiver		5.5 V	3 V	1 uA	- 40 C	+ 85 C	15 kV	Reel, Cut Tape, MouseReel
	RS-232 Interface IC 3V-5.5V Sgl-Ch RS232 1Mbit Line Drvr/Rcv TRSF3221EIDBR Texas Instruments 1: S/ 12.38 2,936In Stock	Mfr. Part # TRSF3221EIDBR Mouser Part # 595-TRSF3221EIDBR	Texas Instruments	RS-232 Interface IC 3V-5.5V Sgl-Ch RS232 1Mbit Line Drvr/Rcv Learn More about Texas Instruments ti trsf3221e rs232 line driver receiver	Datasheet	2,936In Stock	Cut Tape S/ 12.38 S/ 9.30 S/ 8.52 S/ 7.67 Reel S/ 6.54 View S/ 7.24 S/ 7.12 S/ 6.77 S/ 6.42 MouseReel Available	Min.: 1 Mult.: 1 : 2,000			SMD/SMT	SSOP-16	TRSF3221E	Transceiver	1 Mb/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-Ch RS232 1Mbit Line Drvr/Rcv A 595-TRSF3221ECDB TRSF3221ECDBR Texas Instruments 1: S/ 11.37 48In Stock	Mfr. Part # TRSF3221ECDBR Mouser Part # 595-TRSF3221ECDBR	Texas Instruments	RS-232 Interface IC 3V-5.5V Sgl-Ch RS232 1Mbit Line Drvr/Rcv A 595-TRSF3221ECDB Learn More about Texas Instruments ti trsf3221e rs232 line driver receiver	Datasheet	48In Stock	Cut Tape S/ 11.37 S/ 8.52 S/ 7.79 S/ 7.01 Reel S/ 6.19 View S/ 6.62 S/ 6.54 S/ 6.38 S/ 6.11 MouseReel Available	Min.: 1 Mult.: 1 : 2,000			SMD/SMT	SSOP-16	TRSF3221E	Transceiver	1 Mb/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-Ch RS232 1Mbit Line Drvr/Rcv A 595-TRSF3221ECPW TRSF3221ECPWR Texas Instruments 1: S/ 13.20 263In Stock	Mfr. Part # TRSF3221ECPWR Mouser Part # 595-TRSF3221ECPWR	Texas Instruments	RS-232 Interface IC 3V-5.5V Sgl-Ch RS232 1Mbit Line Drvr/Rcv A 595-TRSF3221ECPW Learn More about Texas Instruments ti trsf3221e rs232 line driver receiver	Datasheet	263In Stock	Cut Tape S/ 13.20 S/ 9.85 S/ 8.99 S/ 8.06 Reel S/ 7.08 View S/ 7.63 S/ 7.47 S/ 7.12 S/ 7.05 MouseReel Available	Min.: 1 Mult.: 1 : 2,000			SMD/SMT	TSSOP-16	TRSF3221E	Transceiver	1 Mb/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 3- to 5.5-V single c hannel 1Mbps RS-232 TRSF3221EIRGTR Texas Instruments 1: S/ 11.37 17,677On Order	Mfr. Part # TRSF3221EIRGTR Mouser Part # 595-TRSF3221EIRGTR	Texas Instruments	RS-232 Interface IC 3- to 5.5-V single c hannel 1Mbps RS-232 Learn More about Texas Instruments ti trsf3221e rs232 line driver receiver	Datasheet	17,677On Order On Order Ship Dates Mfr. #: TRSF3221EIRGTR Stock: 0 On Order: 8,677 Expected 11/19/2026 9,000 Expected 2/15/2027 Factory Lead-Time: 12 Weeks	Cut Tape S/ 11.37 S/ 8.45 S/ 7.75 S/ 6.93 View Reel S/ 5.72 S/ 6.58 S/ 6.42 S/ 6.27 S/ 5.72 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	VQFN-16	TRSF3221E	Transceiver	1 Mb/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-Ch RS232 1Mbit Line Drvr/Rcv A 595-TRSF3221EIPW TRSF3221EIPWR Texas Instruments 1: S/ 10.63 5,893Expected 12/31/2026	Mfr. Part # TRSF3221EIPWR Mouser Part # 595-TRSF3221EIPWR	Texas Instruments	RS-232 Interface IC 3V-5.5V Sgl-Ch RS232 1Mbit Line Drvr/Rcv A 595-TRSF3221EIPW Learn More about Texas Instruments ti trsf3221e rs232 line driver receiver	Datasheet	5,893Expected 12/31/2026	Cut Tape S/ 10.63 S/ 7.86 S/ 7.20 S/ 6.46 S/ 6.07 Reel S/ 5.14 MouseReel Available	Min.: 1 Mult.: 1 : 2,000			SMD/SMT	TSSOP-16	TRSF3221E	Transceiver	1 Mb/s	1 Driver	1 Receiver	Full Duplex	5.5 V	3 V	1 mA	- 40 C	+ 85 C	15 kV	Reel, Cut Tape, MouseReel