ICL3241CV RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The ICL3241CV is a full-duplex RS232 transceiver manufactured by Renesas Electronics Corporation, configured with 3 drivers and 5 receivers in a 28-TSSOP surface mount package. This component operates across 3V to 5.5V supply voltage with a 250 kbps data rate and 300 mV receiver hysteresis. The ICL3241CV is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. Substitute parts must maintain electrical compatibility across protocol, driver/receiver configuration, duplex mode, supply voltage range, and package footprint specifications.

Key Parameters

Parameter	ICL3241CV Value
Manufacturer	Renesas Electronics Corporation
Protocol	RS232
Number of Drivers/Receivers	3/5
Duplex Mode	Full
Receiver Hysteresis	300 mV
Data Rate	250 kbps
Voltage Supply Range	3V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package / Case	28-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the ICL3241CV are classified based on electrical and mechanical compatibility. The critical parameters determining substitution eligibility are:

Protocol: RS232 (mandatory match)
Driver/Receiver Configuration: 3/5 (mandatory match)
Duplex Mode: Full (mandatory match)
Supply Voltage Range: 3V ~ 5.5V (mandatory match)
Package Type: 28-TSSOP or 28-SSOP (compatible footprints)
Data Rate: 250 kbps or higher (backward compatible)
Receiver Hysteresis: 300 mV or 500 mV (both acceptable for RS232 applications)
Operating Temperature: Extended range (-40°C ~ 85°C) is backward compatible with 0°C ~ 70°C

Direct substitutes maintain identical receiver hysteresis (300 mV) and data rate (250 kbps). Similar substitutes may vary in receiver hysteresis (500 mV), data rate (235 kbps), operating temperature range, or package variant (28-SSOP vs. 28-TSSOP) while maintaining full electrical compatibility.

Parameter Comparison

Part Number	Manufacturer	Drivers/Receivers	Data Rate	Receiver Hysteresis	Operating Temp	Package	RoHS Status	Product Status	Inventory
ICL3241CV	Renesas	3/5	250 kbps	300 mV	0°C ~ 70°C	28-TSSOP	Non-compliant	Obsolete	1115 Pcs
MAX3241ECUI+	Analog Devices/Maxim	3/5	250 kbps	500 mV	0°C ~ 70°C	28-TSSOP	ROHS3 Compliant	Active	10038 Pcs
MAX3241ECUI+T	Analog Devices/Maxim	3/5	250 kbps	500 mV	0°C ~ 70°C	28-TSSOP	ROHS3 Compliant	Active	1045 Pcs
MAX3241CUI+	Analog Devices/Maxim	3/5	235 kbps	300 mV	0°C ~ 70°C	28-TSSOP	ROHS3 Compliant	Active	929 Pcs
MAX3241CUI+T	Analog Devices/Maxim	3/5	235 kbps	300 mV	0°C ~ 70°C	28-TSSOP	ROHS3 Compliant	Active	1055 Pcs
MAX3241EEUI+	Analog Devices/Maxim	3/5	250 kbps	500 mV	-40°C ~ 85°C	28-TSSOP	ROHS3 Compliant	Active	2228 Pcs
MAX3241EEUI+T	Analog Devices/Maxim	3/5	250 kbps	500 mV	-40°C ~ 85°C	28-TSSOP	ROHS3 Compliant	Active	2000 Pcs
MAX3241EUI+	Analog Devices/Maxim	3/5	235 kbps	300 mV	-40°C ~ 85°C	28-TSSOP	ROHS3 Compliant	Active	924 Pcs
MAX3241EUI+T	Analog Devices/Maxim	3/5	235 kbps	300 mV	-40°C ~ 85°C	28-TSSOP	ROHS3 Compliant	Active	3900 Pcs
ST3241EBPR	STMicroelectronics	3/5	250 kbps	300 mV	-40°C ~ 85°C	28-SSOP	ROHS3 Compliant	Active	6553 Pcs
ST3241ECPR	STMicroelectronics	3/5	250 kbps	300 mV	0°C ~ 70°C	28-SSOP	ROHS3 Compliant	Active	2610 Pcs

Engineering Selection Recommendations

For applications requiring direct pin-compatible replacement in 28-TSSOP footprint with matching operating temperature range (0°C ~ 70°C), MAX3241CUI+ and MAX3241CUI+T are suitable selections. Both maintain 300 mV receiver hysteresis and support the full 3V to 5.5V supply voltage range. The data rate of 235 kbps remains compatible with standard RS232 communication protocols.

For applications requiring extended operating temperature range (-40°C ~ 85°C), MAX3241EUI+, MAX3241EUI+T, MAX3241EEUI+, and MAX3241EEUI+T provide active product status with ROHS3 compliance. MAX3241EEUI+ and MAX3241EEUI+T offer 500 mV receiver hysteresis with 250 kbps data rate, while MAX3241EUI+ and MAX3241EUI+T maintain 300 mV hysteresis with 235 kbps data rate.

ST3241EBPR and ST3241ECPR are compatible alternatives from STMicroelectronics in 28-SSOP package. ST3241EBPR supports extended temperature range (-40°C ~ 85°C) with 250 kbps data rate. ST3241ECPR matches the original operating temperature range (0°C ~ 70°C) with 250 kbps data rate. Package footprint differences between 28-TSSOP (0.173" width) and 28-SSOP (0.209" width) require PCB layout verification.

All substitute parts maintain ROHS3 compliance and active product status, ensuring long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can MAX3241ECUI+ directly replace ICL3241CV without PCB modifications?

A: Yes. MAX3241ECUI+ maintains identical 28-TSSOP package footprint, pin configuration, 3/5 driver/receiver topology, full-duplex RS232 protocol, and 3V to 5.5V supply voltage range. The 500 mV receiver hysteresis is compatible with RS232 specifications. Operating temperature range matches at 0°C to 70°C.

Q: What is the difference between MAX3241CUI+ and MAX3241ECUI+?

A: Both parts share identical package, driver/receiver configuration, and supply voltage. MAX3241CUI+ operates at 235 kbps with 300 mV receiver hysteresis. MAX3241ECUI+ operates at 250 kbps with 500 mV receiver hysteresis. Selection depends on application data rate requirements and receiver noise margin specifications.

Q: Are ST3241EBPR and ST3241ECPR compatible with ICL3241CV?

A: Both ST parts maintain electrical compatibility across protocol, driver/receiver count, duplex mode, and supply voltage. The 28-SSOP package (0.209" width) differs from 28-TSSOP (0.173" width), requiring PCB layout verification. ST3241EBPR supports extended temperature (-40°C ~ 85°C), while ST3241ECPR matches the original 0°C ~ 70°C range.

Q: Why do some substitutes have higher receiver hysteresis (500 mV vs. 300 mV)?

A: Receiver hysteresis affects noise immunity. RS232 specifications allow both values. Higher hysteresis (500 mV) provides greater noise margin in electrically noisy environments. Lower hysteresis (300 mV) maintains tighter threshold control. Both are functionally compatible for standard RS232 applications.

Q: What packaging options are available for MAX3241 variants?

A: MAX3241 parts are available in Tube (standard packaging) and Tape & Reel (TR) formats for automated assembly. MAX3241EUI+T is also available in Cut Tape (CT) & Digi-Reel format. Packaging selection depends on assembly process and volume requirements.

Q: Is RoHS compliance important for substitute selection?

A: The original ICL3241CV is RoHS non-compliant. All listed substitutes are ROHS3 compliant, meeting current regulatory requirements for new designs and manufacturing. For legacy system repairs, RoHS compliance may not be a constraint, but ROHS3 compliant parts ensure regulatory alignment for future applications.

Q: Can I use extended temperature range parts (MAX3241EEUI+) in applications rated for 0°C ~ 70°C?

A: Yes. Extended temperature range (-40°C ~ 85°C) is backward compatible with narrower operating ranges (0°C ~ 70°C). The part will function correctly within the narrower temperature window. This substitution is appropriate when extended temperature capability is desired for future design flexibility.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message