RS-232 Interface IC – Mouser Singapore

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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 (SGD) 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: $2.98 1,885In Stock New Product	Mfr. Part No. TRSF3221EIDYYR Mouser Part No 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 $2.98 $2.20 $2.00 $1.78 Reel $1.55 View $1.69 $1.62 $1.56 $1.54 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: $4.32 2,936In Stock	Mfr. Part No. TRSF3221EIDBR Mouser Part No 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 $4.32 $3.25 $2.98 $2.68 Reel $2.28 View $2.53 $2.49 $2.37 $2.24 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: $3.97 48In Stock	Mfr. Part No. TRSF3221ECDBR Mouser Part No 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 $3.97 $2.98 $2.72 $2.45 Reel $2.16 View $2.31 $2.28 $2.23 $2.14 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: $4.61 263In Stock	Mfr. Part No. TRSF3221ECPWR Mouser Part No 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 $4.61 $3.44 $3.14 $2.82 Reel $2.48 View $2.67 $2.61 $2.49 $2.46 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: $3.97 17,677On Order	Mfr. Part No. TRSF3221EIRGTR Mouser Part No 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. No: TRSF3221EIRGTR Stock: 0 On Order: 8,677 Expected 19/11/2026 9,000 Expected 15/2/2027 Factory Lead Time: 12 Weeks	Cut Tape $3.97 $2.95 $2.71 $2.42 View Reel $2.00 $2.30 $2.24 $2.19 $2.00 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: $3.71 5,893Expected 31/12/2026	Mfr. Part No. TRSF3221EIPWR Mouser Part No 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 31/12/2026	Cut Tape $3.71 $2.75 $2.52 $2.26 $2.12 Reel $1.80 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