RS-232 Interface IC – Mouser Mexico

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ISL3232E/ISL4221E/ISL4223E RS-232 Interface ICs

Renesas Electronics ISL3232E/ISL4221E/ISL4223E RS-232 Interface ICs are 2.7V to 5.5V powered RS-232 transmitters/receivers that meet ElA/TIA-232 and V.28/V.24 specifications, even at V_CC = 3.0V. The devices provide ±15kV ESD protection (IEC61000-4-2 Air Gap and Human Body Model) on transmitter outputs and receiver inputs (RS-232 pins).

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	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 3V RS-232 2TX/2RX TRANSC 20LD 5X5 ISL4223EIRZ-T7A Renesas / Intersil 1: $11.61 1,285In Stock	Mfr. Part # ISL4223EIRZ-T7A Mouser Part # 968-ISL4223EIRZ-T7A	Renesas / Intersil	RS-232 Interface IC 3V RS-232 2TX/2RX TRANSC 20LD 5X5 Learn More about Renesas / Intersil renesas isl3232e isl4221e isl4223e interface ics	Datasheet	1,285In Stock	Cut Tape $11.61 $9.00 $8.35 $7.62 Reel $6.98 View $6.76 $6.64 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	QFN-20	ISL4223E	Transceiver	250 kb/s	2 Driver	2 Receiver	Full Duplex	5.5 V	2.7 V	150 nA	- 40 C	+ 85 C	15 kV	Reel, Cut Tape, MouseReel
RS-232 Interface IC 3V RS-232 1TX/1RX TRANSC 16LD 5X5 ISL4221EIRZ-T Renesas / Intersil 1: $6.11 2,344In Stock 6,000Expected 10/16/2026	Mfr. Part # ISL4221EIRZ-T Mouser Part # 968-ISL4221EIRZ-T	Renesas / Intersil	RS-232 Interface IC 3V RS-232 1TX/1RX TRANSC 16LD 5X5 Learn More about Renesas / Intersil renesas isl3232e isl4221e isl4223e interface ics	Datasheet	2,344In Stock 6,000Expected 10/16/2026	Cut Tape $6.11 $4.85 $4.15 $3.80 View Reel $3.22 $3.60 $3.54 $3.41 $3.32 $3.22 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	SMD/SMT	QFN-16	ISL4221E	Transceiver	250 kb/s	1 Driver	1 Receiver	Full Duplex	5.5 V	2.7 V	1 mA	- 40 C	+ 85 C	15 kV	Reel, Cut Tape, MouseReel
RS-232 Interface IC 3V RS-232 2TX/2RX TRANSC 20LD 5X5 ISL4223EIRZ Renesas / Intersil 1: $8.28 762In Stock 240Expected 10/15/2026	Mfr. Part # ISL4223EIRZ Mouser Part # 968-ISL4223EIRZ	Renesas / Intersil	RS-232 Interface IC 3V RS-232 2TX/2RX TRANSC 20LD 5X5 Learn More about Renesas / Intersil renesas isl3232e isl4221e isl4223e interface ics	Datasheet	762In Stock 240Expected 10/15/2026	$8.28 $6.33 $5.67 $5.28 View $5.03 $4.91 $4.84 $4.72 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	ISL4223E	Transceiver	250 kb/s	2 Driver	2 Receiver	Full Duplex	5.5 V	2.7 V	150 nA	- 40 C	+ 85 C	15 kV	Tube
RS-232 Interface IC Pb-Free 3V RS-232 2TX/2RX -40+85 TRANSCEIVER, 20LD 5X5 QFN, ISL4223EIRZ-TK Renesas / Intersil 1: $8.50 536In Stock	Mfr. Part # ISL4223EIRZ-TK Mouser Part # 968-ISL98611AII-EVZ	Renesas / Intersil	RS-232 Interface IC Pb-Free 3V RS-232 2TX/2RX -40+85 TRANSCEIVER, 20LD 5X5 QFN, Learn More about Renesas / Intersil renesas isl3232e isl4221e isl4223e interface ics	Datasheet	536In Stock	Cut Tape $8.50 $6.44 $5.93 $5.37 Reel $4.84 View $5.11 $4.95 $4.71 Quote	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	QFN-20	ISL4223E	Transceiver	250 kb/s	2 Driver	2 Receiver	Full Duplex	5.5 V	2.7 V	150 nA	- 40 C	+ 85 C	15 kV	Reel, Cut Tape
RS-232 Interface IC 3V RS-232 1TX/1RX -4 0+85 TRANS 16LD 5X5 ISL4221EIRZ Renesas / Intersil 1: $6.19 452In Stock 4,020On Order	Mfr. Part # ISL4221EIRZ Mouser Part # 968-ISL4221EIRZ	Renesas / Intersil	RS-232 Interface IC 3V RS-232 1TX/1RX -4 0+85 TRANS 16LD 5X5 Learn More about Renesas / Intersil renesas isl3232e isl4221e isl4223e interface ics	Datasheet	452In Stock 4,020On Order On Order Ship Dates Mfr. #: ISL4221EIRZ Stock: 452 Can Ship Immediately On Order: 2,100 Expected 1/18/2027 1,920 Expected 3/8/2027 Factory Lead-Time: 36 Weeks	$6.19 $4.60 $4.04 $3.77 View $3.58 $3.51 $3.35 $3.29	Min.: 1 Mult.: 1	SMD/SMT	QFN-16	ISL4221E	Transceiver	250 kb/s	1 Driver	1 Receiver	Full Duplex	5.5 V	2.7 V	1 mA	- 40 C	+ 85 C	15 kV	Tube
RS-232 Interface IC 3V RS-232 2TX/2RX TRANSC 16LD 5X5 ISL3232EIRZ Renesas / Intersil 1: $3.85 1,363On Order	Mfr. Part # ISL3232EIRZ Mouser Part # 968-ISL3232EIRZ	Renesas / Intersil	RS-232 Interface IC 3V RS-232 2TX/2RX TRANSC 16LD 5X5 Learn More about Renesas / Intersil renesas isl3232e isl4221e isl4223e interface ics	Datasheet	1,363On Order On Order Ship Dates Mfr. #: ISL3232EIRZ Stock: 0 On Order: 43 Expected 2/1/2027 1,320 Expected 5/25/2027 Factory Lead-Time: 36 Weeks	$3.85 $2.82 $2.50 $2.29 View $2.16 $2.11 $2.03 $1.96 $1.92	Min.: 1 Mult.: 1	SMD/SMT	QFN-16	ISL3232E	Transceiver	250 kb/s	2 Driver	2 Receiver	Full Duplex	5.5 V	2.7 V	1 mA	- 40 C	+ 85 C	15 kV	Tube
RS-232 Interface IC 3V RS-232 2TX/2RX -4 0+85 TRANS 16LD 5X5 ISL3232EIRZ-T7A Renesas / Intersil 1: $4.98 250Expected 5/24/2027	Mfr. Part # ISL3232EIRZ-T7A Mouser Part # 968-ISL3232EIRZ-T7A	Renesas / Intersil	RS-232 Interface IC 3V RS-232 2TX/2RX -4 0+85 TRANS 16LD 5X5 Learn More about Renesas / Intersil renesas isl3232e isl4221e isl4223e interface ics	Datasheet	250Expected 5/24/2027	Cut Tape $4.98 $4.46 $3.58 $3.29 Reel $3.15 View $3.12 $3.04 $3.02 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	QFN-16	ISL3232E	Transceiver	250 kb/s	2 Driver	2 Receiver	Full Duplex	5.5 V	2.7 V	1 mA	- 40 C	+ 85 C	15 kV	Reel, Cut Tape, MouseReel
RS-232 Interface IC 3V RS-232 2TX/2RX TRANSC 16LD 5X5 ISL3232EIRZ-T Renesas / Intersil 1: $3.74 Non-Stocked Lead-Time 36 Weeks	Mfr. Part # ISL3232EIRZ-T Mouser Part # 968-ISL3232EIRZ-T	Renesas / Intersil	RS-232 Interface IC 3V RS-232 2TX/2RX TRANSC 16LD 5X5 Learn More about Renesas / Intersil renesas isl3232e isl4221e isl4223e interface ics	Datasheet	Non-Stocked Lead-Time 36 Weeks	Cut Tape $3.74 $2.80 $2.55 $2.29 View Reel $1.98 $2.16 $2.12 $2.02 $1.99 $1.98 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	SMD/SMT	QFN-16	ISL3232E	Transceiver	500 kb/s	1 Driver	2 Receiver		5.5 V	2.7 V	1 mA	- 40 C	+ 85 C	ESD Protection	Reel, Cut Tape, MouseReel
RS-232 Interface IC 3V RS-232 2TX/2RX TRANSC 20LD 5X5 ISL4223EIRZ-T Renesas / Intersil 6,000: $4.82 Non-Stocked Lead-Time 36 Weeks	Mfr. Part # ISL4223EIRZ-T Mouser Part # 968-ISL4223EIRZ-T	Renesas / Intersil	RS-232 Interface IC 3V RS-232 2TX/2RX TRANSC 20LD 5X5 Learn More about Renesas / Intersil renesas isl3232e isl4221e isl4223e interface ics	Datasheet	Non-Stocked Lead-Time 36 Weeks	Reel $4.82	Min.: 6,000 Mult.: 6,000 : 6,000	SMD/SMT	QFN-20	ISL4223E	Transceiver	250 kb/s	2 Driver	2 Receiver		5.5 V	2.7 V	150 nA	- 40 C	+ 85 C	ESD Protection	Reel

ISL3232E/ISL4221E/ISL4223E RS-232 Interface ICs

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