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 VCC = 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).

Results: 9
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
Renesas / Intersil RS-232 Interface IC 3V RS-232 2TX/2RX TRANSC 20LD 5X5 1,265In Stock
Cut Tape
S/34.76
S/26.94
S/24.99
S/22.81
Reel
S/20.90
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

Renesas / Intersil RS-232 Interface IC 3V RS-232 1TX/1RX TRANSC 16LD 5X5 1,464In Stock
6,000Expected 10/16/2026
Cut Tape
S/18.29
S/14.52
S/12.42
S/11.37
Reel
S/9.34
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
Renesas / Intersil RS-232 Interface IC 3V RS-232 2TX/2RX TRANSC 20LD 5X5 762In Stock
240Expected 5/10/2027
S/24.80
S/18.96
S/16.97
S/15.80
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
Renesas / Intersil RS-232 Interface IC Pb-Free 3V RS-232 2TX/2RX -40+85 TRANSCEIVER, 20LD 5X5 QFN, 536In Stock
Cut Tape
S/25.46
S/19.27
S/17.75
S/16.08
Reel
S/14.48
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

Renesas / Intersil RS-232 Interface IC 3V RS-232 1TX/1RX -4 0+85 TRANS 16LD 5X5 57In Stock
4,020On Order
S/18.53
S/13.78
S/12.11
S/11.29
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

Renesas / Intersil RS-232 Interface IC 3V RS-232 2TX/2RX TRANSC 16LD 5X5
1,963On Order
S/12.42
S/8.95
S/7.51
S/7.12
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

Renesas / Intersil RS-232 Interface IC 3V RS-232 2TX/2RX -4 0+85 TRANS 16LD 5X5
250Expected 5/24/2027
Cut Tape
S/14.91
S/13.35
S/10.70
S/9.85
Reel
S/9.42
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

Renesas / Intersil RS-232 Interface IC 3V RS-232 2TX/2RX TRANSC 16LD 5X5 Non-Stocked Lead-Time 36 Weeks
Cut Tape
S/11.21
S/8.37
S/7.63
S/6.85
Reel
S/5.92
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
Renesas / Intersil RS-232 Interface IC 3V RS-232 2TX/2RX TRANSC 20LD 5X5 Non-Stocked Lead-Time 36 Weeks
Reel
S/14.44
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