RS-232 Interface IC – Mouser South Africa

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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: $8.93 1,285In Stock	Mfr. Part No. ISL4223EIRZ-T7A Mouser Part No 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 $8.93 $6.92 $6.42 $5.86 Reel $5.37 View $5.20 $5.11 $5.01 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: $4.70 4,064In Stock 6,000Expected 2026/11/20	Mfr. Part No. ISL4221EIRZ-T Mouser Part No 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	4,064In Stock 6,000Expected 2026/11/20	Cut Tape $4.70 $3.73 $3.19 $2.92 View Reel $2.48 $2.77 $2.72 $2.62 $2.55 $2.48 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: $6.37 402In Stock 600Expected 2026/10/15	Mfr. Part No. ISL4223EIRZ Mouser Part No 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	402In Stock 600Expected 2026/10/15	$6.37 $4.87 $4.36 $4.06 View $3.87 $3.78 $3.72 $3.63 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: $6.54 536In Stock	Mfr. Part No. ISL4223EIRZ-TK Mouser Part No 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 $6.54 $4.95 $4.56 $4.13 Reel $3.72 View $3.93 $3.81 $3.62 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: $4.76 453In Stock 4,020On Order	Mfr. Part No. ISL4221EIRZ Mouser Part No 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	453In Stock 4,020On Order On Order Ship Dates Mfr. No: ISL4221EIRZ Stock: 453 Can Dispatch Immediately On Order: 2,100 Expected 2027/01/18 1,920 Expected 2027/03/08 Factory Lead Time: 22 Weeks	$4.76 $3.54 $3.11 $2.90 View $2.76 $2.70 $2.58 $2.54	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: $2.97 3,053On Order	Mfr. Part No. ISL3232EIRZ Mouser Part No 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	3,053On Order On Order Ship Dates Mfr. No: ISL3232EIRZ Stock: 0 On Order: 1,613 Expected 2027/01/29 1,440 Expected 2027/02/01 Factory Lead Time: 22 Weeks	$2.97 $2.17 $1.92 $1.76 View $1.66 $1.62 $1.56 $1.51 $1.48	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: $3.97 1,250On Order	Mfr. Part No. ISL3232EIRZ-T7A Mouser Part No 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	1,250On Order On Order Ship Dates Mfr. No: ISL3232EIRZ-T7A Stock: 0 On Order: 750 Expected 2027/01/29 500 Expected 2027/02/01 Factory Lead Time: 22 Weeks	Cut Tape $3.97 $3.33 $2.80 $2.56 Reel $2.43 View $2.41 $2.33 $2.30 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: $2.88 6Factory Stock Available	Mfr. Part No. ISL3232EIRZ-T Mouser Part No 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	6Factory Stock Available More Info Available	Cut Tape $2.88 $2.15 $1.97 $1.76 View Reel $1.49 $1.66 $1.63 $1.55 $1.50 $1.49 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: $3.68 Non-Stocked Lead-Time 22 Weeks	Mfr. Part No. ISL4223EIRZ-T Mouser Part No 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 22 Weeks	Reel $3.68	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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