ICL3241ECBZ Equivalent & Substitute Parts

Part Overview

The ICL3241ECBZ is a 3/5 transceiver full RS232 interface IC manufactured by Renesas Electronics Corporation in 28-SOIC packaging. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The ICL3241ECBZ operates across 3V to 5.5V supply voltage with a 250kbps data rate and 500mV receiver hysteresis, suitable for industrial and commercial RS232 communication applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	ICL3241ECBZ
Manufacturer	Renesas Electronics Corporation
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	3/5
Duplex	Full
Data Rate	250kbps
Voltage - Supply	3V ~ 5.5V
Receiver Hysteresis	500 mV
Operating Temperature	0°C ~ 70°C
Package / Case	28-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution for the ICL3241ECBZ is determined by strict equivalence across the following critical parameters:

Core Electrical Parameters:

Protocol: RS232
Number of Drivers/Receivers: 3/5
Duplex: Full
Voltage Supply Range: 3V ~ 5.5V
Receiver Hysteresis: 500 mV
Data Rate: 250kbps (minimum requirement)

Mechanical Parameters:

Package Type: 28-SOIC (0.295", 7.50mm Width)
Mounting Type: Surface Mount

Compliance Requirements:

RoHS3 Compliant
REACH Unaffected

Substitute parts are grouped into two categories:

Direct Package Substitutes (28-SOIC): Parts maintaining identical package geometry, enabling direct PCB footprint compatibility without layout modifications.

Alternative Package Substitutes (28-TSSOP): Parts with different package form factors requiring PCB redesign but offering equivalent electrical functionality.

Parameter Comparison

Part Number	Manufacturer	Package	Protocol	Drivers/Receivers	Data Rate	Supply Voltage	Receiver Hysteresis	Operating Temp	Product Status	MSL Rating
ICL3241ECBZ	Renesas	28-SOIC	RS232	3/5	250kbps	3V ~ 5.5V	500 mV	0°C ~ 70°C	Obsolete	3
ICL3241EIVZ	Renesas	28-TSSOP	RS232	3/5	250kbps	3V ~ 5.5V	500 mV	-40°C ~ 85°C	Active	3
MAX3241CWI+	Analog Devices/Maxim	28-SOIC	RS232	3/5	235Kbps	3V ~ 5.5V	300 mV	0°C ~ 70°C	Active	1
MAX3241ECWI+T	Analog Devices/Maxim	28-SOIC	RS232	3/5	250kbps	3V ~ 5.5V	500 mV	0°C ~ 70°C	Active	1
MAX3241EEWI+	Analog Devices/Maxim	28-SOIC	RS232	3/5	250kbps	3V ~ 5.5V	500 mV	-40°C ~ 85°C	Active	1
MAX3241EEWI+T	Analog Devices/Maxim	28-SOIC	RS232	3/5	250kbps	3V ~ 5.5V	500 mV	-40°C ~ 85°C	Active	1
MAX3241EWI+	Analog Devices/Maxim	28-SOIC	RS232	3/5	1Mbps	3V ~ 5.5V	500 mV	-40°C ~ 85°C	Active	1
MAX3241ECWI+	Analog Devices/Maxim	28-SOIC	RS232	3/5	250kbps	3V ~ 5.5V	500 mV	0°C ~ 70°C	Active	1
MAX3244ECWI+	Analog Devices/Maxim	28-SOIC	RS232	3/5	250kbps	3V ~ 5.5V	500 mV	0°C ~ 70°C	Active	1

Engineering Selection Recommendations

Direct Substitutes (Same Package, Identical Parameters):

MAX3241ECWI+ and MAX3244ECWI+ are parametric equivalents to the ICL3241ECBZ, maintaining identical electrical specifications and 28-SOIC packaging. Both are manufactured by Analog Devices/Maxim Integrated and carry active product status with superior MSL rating (1 vs. 3), indicating lower moisture sensitivity and improved handling characteristics. These parts are suitable for direct replacement without PCB modification.

Extended Temperature Range Alternatives (Same Package):

MAX3241EEWI+ and MAX3241EEWI+T provide identical electrical parameters with extended operating temperature range (-40°C to 85°C versus 0°C to 70°C). These parts are appropriate for applications requiring broader thermal performance. The +T suffix indicates Tape & Reel packaging, while the non-suffixed version uses Tube packaging.

Higher Data Rate Alternative (Same Package):

MAX3241EWI+ maintains all core parameters while offering 1Mbps data rate capability (versus 250kbps). This part is suitable for applications requiring higher communication speeds within the same physical footprint.

Alternative Package Option (Different Package):

ICL3241EIVZ from Renesas provides electrical equivalence in 28-TSSOP packaging with extended temperature range (-40°C to 85°C). This option requires PCB redesign due to different package geometry but maintains active product status from the original manufacturer.

Compliance Status:

All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the original ICL3241ECBZ.

Frequently Asked Questions (FAQ)

Q: Can MAX3241ECWI+ directly replace ICL3241ECBZ without PCB changes?

A: Yes. MAX3241ECWI+ uses identical 28-SOIC packaging with matching pin configuration, electrical parameters, and supply voltage range. No PCB layout modifications are required.

Q: What is the difference between MAX3241ECWI+ and MAX3241EEWI+?

A: Both maintain identical electrical specifications and 28-SOIC packaging. The primary difference is operating temperature range: MAX3241ECWI+ operates 0°C to 70°C, while MAX3241EEWI+ operates -40°C to 85°C. Select based on application thermal requirements.

Q: Why does MAX3241CWI+ show 235Kbps data rate instead of 250kbps?

A: MAX3241CWI+ has a lower specified data rate (235Kbps) compared to the ICL3241ECBZ (250kbps). This part is not a direct parametric equivalent and should be selected only if the lower data rate meets application requirements.

Q: Is ICL3241EIVZ a suitable substitute despite different packaging?

A: ICL3241EIVZ provides electrical equivalence with extended temperature range but uses 28-TSSOP packaging instead of 28-SOIC. PCB redesign is required. This option is appropriate only when layout modifications are feasible and extended temperature performance is needed.

Q: What does the +T suffix indicate on MAX3241ECWI+T and MAX3241EEWI+T?

A: The +T suffix indicates Tape & Reel packaging format, used for automated assembly processes. Parts without the +T suffix use Tube packaging. Electrical specifications are identical; packaging format selection depends on manufacturing process requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the original ICL3241ECBZ.

Q: Which substitute offers the best moisture handling characteristics?

A: All Analog Devices/Maxim parts (MAX3241 series and MAX3244ECWI+) carry MSL rating 1 (Unlimited), superior to the original ICL3241ECBZ MSL rating 3 (168 Hours). This indicates lower moisture sensitivity and reduced handling restrictions during storage and assembly.

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