ICL3241ECVZ Equivalent & Substitute Parts

Part Overview

The ICL3241ECVZ 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 part is classified as obsolete, though 2630 units remain in stock as new original inventory. Due to its obsolete status, identifying equivalent and substitute parts is essential for design continuity, long-term supply chain planning, and system maintenance. Active alternatives from Renesas and other manufacturers provide equivalent or enhanced functionality with improved product lifecycle support.

Key Parameters

Parameter	Value
Manufacturer Part Number	ICL3241ECVZ
Manufacturer	Renesas Electronics Corporation
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	3/5
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	250 kbps
Voltage Supply Range	3V to 5.5V
Operating Temperature	0°C to 70°C
Package / Case	28-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the ICL3241ECVZ is determined by strict alignment of the following critical parameters:

Core Electrical Parameters:

Protocol: RS232
Number of Drivers/Receivers: 3/5
Duplex: Full
Voltage Supply Range: 3V to 5.5V
Data Rate: 250 kbps (or higher)
Receiver Hysteresis: 500 mV (or equivalent performance)

Physical Parameters:

Package / Case: 28-TSSOP or compatible pinout
Mounting Type: Surface Mount

Compliance Parameters:

RoHS3 Compliant
REACH Unaffected

Substitute parts are grouped into three categories based on their relationship to the main part:

Parametric Equivalent: ICL3243ECVZ (Renesas) — identical electrical specifications, active product status, same package family
Direct Manufacturer Equivalent: MAX3241ECUI+T (Analog Devices/Maxim) — meets all core parameters, active status, enhanced MSL rating
Similar Alternatives: MAX3241 series variants and ST3241 series — meet core electrical and physical requirements with minor parameter variations

Parameter Comparison

Part Number	Manufacturer	Drivers/Receivers	Data Rate	Receiver Hysteresis	Operating Temp	Package	Product Status	MSL	Packaging Type
ICL3241ECVZ	Renesas	3/5	250 kbps	500 mV	0°C to 70°C	28-TSSOP	Obsolete	3	Tube
ICL3243ECVZ	Renesas	3/5	250 kbps	500 mV	0°C to 70°C	28-TSSOP	Active	3	Tube
MAX3241ECUI+T	Analog Devices/Maxim	3/5	250 kbps	500 mV	0°C to 70°C	28-TSSOP	Active	1	Tape & Reel
MAX3241CUI+	Analog Devices/Maxim	3/5	235 kbps	300 mV	0°C to 70°C	28-TSSOP	Active	1	Tube
MAX3241CUI+T	Analog Devices/Maxim	3/5	235 kbps	300 mV	0°C to 70°C	28-TSSOP	Active	1	Tape & Reel
MAX3241EEUI+	Analog Devices/Maxim	3/5	250 kbps	500 mV	-40°C to 85°C	28-TSSOP	Active	1	Tube
MAX3241EEUI+T	Analog Devices/Maxim	3/5	250 kbps	500 mV	-40°C to 85°C	28-TSSOP	Active	1	Tape & Reel
MAX3241EUI+	Analog Devices/Maxim	3/5	235 kbps	300 mV	-40°C to 85°C	28-TSSOP	Active	1	Tube
MAX3241EUI+T	Analog Devices/Maxim	3/5	235 kbps	300 mV	-40°C to 85°C	28-TSSOP	Active	1	Cut Tape & Digi-Reel
ST3241EBPR	STMicroelectronics	3/5	250 kbps	300 mV	-40°C to 85°C	28-SSOP	Active	3	Cut Tape & Digi-Reel
ST3241ECPR	STMicroelectronics	3/5	250 kbps	300 mV	0°C to 70°C	28-SSOP	Active	3	Cut Tape & Digi-Reel

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): ICL3243ECVZ is the primary parametric equivalent from Renesas, offering identical electrical performance, the same 28-TSSOP package, and active product status. This part maintains MSL 3 rating consistent with the original ICL3241ECVZ and is recommended for applications requiring no design modification.

For Enhanced Reliability and Extended Lifecycle: MAX3241ECUI+T (Analog Devices/Maxim) provides identical electrical specifications with superior moisture sensitivity (MSL 1 vs. MSL 3), ensuring lower risk in humid storage and assembly environments. Active product status and Tape & Reel packaging support high-volume production. This part is suitable for new designs or redesigns where improved component reliability is prioritized.

For Extended Temperature Range Applications: MAX3241EEUI+ and MAX3241EEUI+T extend the operating temperature range to -40°C to 85°C while maintaining 500 mV receiver hysteresis and 250 kbps data rate. These variants are appropriate for industrial or automotive environments requiring wider temperature performance.

For Cost-Optimized Alternatives: MAX3241CUI+ and MAX3241CUI+T offer active status and MSL 1 rating at reduced data rate (235 kbps) and receiver hysteresis (300 mV). These parts are suitable for applications where the lower specifications remain within system requirements.

For Package Flexibility: ST3241ECPR (STMicroelectronics) provides equivalent electrical performance in a 28-SSOP package (0.209" width vs. 0.173" for TSSOP). This option accommodates designs with different PCB layout constraints or existing ST component qualification.

All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original part.

Frequently Asked Questions (FAQ)

Q: Can ICL3243ECVZ be used as a direct drop-in replacement for ICL3241ECVZ? A: Yes. ICL3243ECVZ is a parametric equivalent with identical electrical specifications (3/5 drivers/receivers, 250 kbps data rate, 500 mV hysteresis, 3V to 5.5V supply), the same 28-TSSOP package, and matching operating temperature range (0°C to 70°C). No design changes are required.

Q: What is the difference between MAX3241ECUI+T and MAX3241CUI+T? A: MAX3241ECUI+T maintains the original ICL3241ECVZ specifications: 250 kbps data rate and 500 mV receiver hysteresis. MAX3241CUI+T operates at 235 kbps with 300 mV hysteresis. Both share identical supply voltage range and package. Selection depends on whether the lower data rate and hysteresis specifications are acceptable for the application.

Q: Why do some substitutes have different operating temperature ranges? A: Temperature range variations reflect different product grades within the MAX3241 and ST3241 families. Parts designated with "E" (MAX3241EEUI+) or "B" (ST3241EBPR) support extended industrial temperature ranges (-40°C to 85°C), while commercial grades operate within 0°C to 70°C. Selection should match the thermal environment of the target application.

Q: Are 28-TSSOP and 28-SSOP packages interchangeable? A: No. While both are 28-pin surface mount packages, TSSOP (0.173" width) and SSOP (0.209" width) have different physical dimensions and PCB footprints. ST3241 series parts in 28-SSOP require PCB layout modification and cannot be used as direct substitutes without redesign.

Q: What does MSL rating mean for component selection? A: Moisture Sensitivity Level (MSL) indicates how long a component can be exposed to ambient humidity before assembly. MSL 1 (unlimited) provides greater flexibility in storage and handling compared to MSL 3 (168 hours). For high-volume or extended supply chain operations, MSL 1 parts reduce risk of moisture-induced failures.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original ICL3241ECVZ for applications subject to environmental directives.

Q: Which substitute offers the best long-term availability? A: MAX3241EEUI+ and MAX3241EEUI+T (Analog Devices/Maxim) show the highest inventory levels (2000+ units) and active product status with extended temperature support, indicating strong long-term availability and production commitment.

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