RS-232 Interface IC – Mouser Hong Kong

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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 (HKD) 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: HK$73.40 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 HK$73.40 HK$56.88 HK$52.77 HK$48.17 Reel HK$44.14 View HK$42.74 HK$42.00 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: HK$38.63 2,344In Stock 6,000Expected 16/10/2026	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	2,344In Stock 6,000Expected 16/10/2026	Cut Tape HK$38.63 HK$30.66 HK$26.22 HK$24.00 View Reel HK$20.39 HK$22.77 HK$22.36 HK$21.54 HK$20.96 HK$20.39 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: HK$52.36 762In Stock 240Expected 15/10/2026	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	762In Stock 240Expected 15/10/2026	HK$52.36 HK$40.03 HK$35.84 HK$33.37 View HK$31.81 HK$31.07 HK$30.58 HK$29.84 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: HK$53.76 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 HK$53.76 HK$40.69 HK$37.48 HK$33.95 Reel HK$30.58 View HK$32.30 HK$31.32 HK$29.76 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: HK$39.13 452In 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	452In Stock 4,020On Order On Order Ship Dates Mfr. No: ISL4221EIRZ Stock: 452 Can Dispatch Immediately On Order: 2,100 Expected 18/1/2027 1,920 Expected 8/3/2027 Factory Lead Time: 22 Weeks	HK$39.13 HK$29.10 HK$25.56 HK$23.84 View HK$22.61 HK$22.19 HK$21.21 HK$20.80	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: HK$24.33 1,363On 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	1,363On Order On Order Ship Dates Mfr. No: ISL3232EIRZ Stock: 0 On Order: 43 Expected 1/2/2027 1,320 Expected 25/5/2027 Factory Lead Time: 22 Weeks	HK$24.33 HK$17.84 HK$15.78 HK$14.47 View HK$13.65 HK$13.32 HK$12.82 HK$12.41 HK$12.17	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: HK$31.48 250Expected 24/5/2027	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	250Expected 24/5/2027	Cut Tape HK$31.48 HK$28.19 HK$22.61 HK$20.80 Reel HK$19.89 View HK$19.73 HK$19.23 HK$19.07 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: HK$23.67 Non-Stocked Lead-Time 22 Weeks	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	Non-Stocked Lead-Time 22 Weeks	Cut Tape HK$23.67 HK$17.67 HK$16.11 HK$14.47 View Reel HK$12.49 HK$13.65 HK$13.40 HK$12.74 HK$12.58 HK$12.49 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: HK$30.50 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 HK$30.50	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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