ICL232CBE Equivalent & Substitute Parts

Part Overview

The ICL232CBE is a 2/2 transceiver full RS232 interface IC manufactured by Renesas Electronics Corporation in a 16-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs, redesigns, or inventory replenishment. The ICL232CBE operates within a 4.5V to 5.5V supply voltage range and supports full-duplex RS232 communication with 500 mV receiver hysteresis across an operating temperature range of 0°C to 70°C.

Key Parameters

Parameter	Value
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	500 mV
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	16-SOIC (0.295", 7.50mm Width)
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the ICL232CBE is determined by strict equivalence across the following critical parameters:

RS232 protocol compliance
2/2 driver/receiver configuration
Full-duplex operation capability
500 mV receiver hysteresis
4.5V to 5.5V supply voltage range
16-SOIC surface mount package (0.295", 7.50mm width)
Operating temperature range compatibility

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

Parametric Equivalent: ICL232CBEZ differs only in packaging format (Tube) and compliance status (ROHS3 Compliant, MSL 3). Electrical and functional parameters are identical.

Direct Equivalents: MAX232CWE+, MAX232CWE+T, MAX232DW, MAX232DWG4, MAX232DWR, and TRS232DWR maintain all critical electrical parameters and package specifications. These parts are sourced from Analog Devices Inc./Maxim Integrated and Texas Instruments.

Upgrade Options: MAX232EWE+ and MAX232EWE+T provide extended operating temperature range (-40°C to 85°C) while maintaining all other electrical specifications and package compatibility.

Similar Alternative: ADM232AARNZ operates within equivalent electrical parameters but uses a 16-SOP package (0.154", 3.90mm width) instead of the standard 16-SOIC, requiring PCB layout modification.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Receiver Hysteresis	Supply Voltage	Operating Temperature	Package	Product Status	RoHS Status
ICL232CBE	Renesas Electronics	RS232	2/2	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Obsolete	RoHS non-compliant
ICL232CBEZ	Renesas Electronics	RS232	2/2	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Obsolete	ROHS3 Compliant
MAX232CWE+	Analog Devices Inc./Maxim Integrated	RS232	2/2	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Active	ROHS3 Compliant
MAX232CWE+T	Analog Devices Inc./Maxim Integrated	RS232	2/2	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Active	ROHS3 Compliant
MAX232DW	Texas Instruments	RS232	2/2	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Obsolete	ROHS3 Compliant
MAX232DWG4	Texas Instruments	RS232	2/2	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Obsolete	ROHS3 Compliant
MAX232DWR	Texas Instruments	RS232	2/2	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Obsolete	ROHS3 Compliant
TRS232DWR	Texas Instruments	RS232	2/2	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Obsolete	ROHS3 Compliant
MAX232EWE+	Analog Devices Inc./Maxim Integrated	RS232	2/2	500 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
MAX232EWE+T	Analog Devices Inc./Maxim Integrated	RS232	2/2	500 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ADM232AARNZ	UMW	RS232	2/2	Not specified	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOP	Active	ROHS3 Compliant

Engineering Selection Recommendations

For direct replacement in existing designs without modification, select from active product status parts with matching 16-SOIC package specifications: MAX232CWE+, MAX232CWE+T, MAX232EWE+, or MAX232EWE+T. These parts are manufactured by Analog Devices Inc./Maxim Integrated and maintain full electrical compatibility.

For new designs requiring extended operating temperature range (-40°C to 85°C), MAX232EWE+ and MAX232EWE+T are preferred selections. Both are active products with ROHS3 compliance and unlimited moisture sensitivity rating.

For applications where RoHS3 compliance is mandatory, avoid the original ICL232CBE (RoHS non-compliant). All substitute parts listed except the original part meet ROHS3 compliance requirements.

Obsolete product status applies to ICL232CBE, ICL232CBEZ, MAX232DW, MAX232DWG4, MAX232DWR, and TRS232DWR. Active product alternatives ensure long-term availability and supply chain stability.

The ADM232AARNZ alternative requires PCB layout redesign due to package geometry differences (16-SOP versus 16-SOIC) and should only be considered when package footprint modification is feasible.

Frequently Asked Questions (FAQ)

Q: Can MAX232CWE+T directly replace ICL232CBE without PCB modification?

A: Yes. MAX232CWE+T maintains identical electrical parameters (2/2 RS232 transceiver, 500 mV receiver hysteresis, 4.5V to 5.5V supply) and uses the same 16-SOIC (0.295", 7.50mm width) package. No PCB layout changes are required.

Q: What is the difference between MAX232CWE+ and MAX232CWE+T?

A: Both parts are electrically identical. The difference is packaging format: MAX232CWE+ is supplied in Tube packaging, while MAX232CWE+T is supplied in Cut Tape (CT) & Digi-Reel® format. Selection depends on assembly process requirements.

Q: Why should I consider MAX232EWE+T over MAX232CWE+T?

A: MAX232EWE+T extends the operating temperature range to -40°C to 85°C compared to 0°C to 70°C for MAX232CWE+T. This upgrade is beneficial for applications requiring wider temperature operation or future design flexibility. Both are active products with ROHS3 compliance.

Q: Is ICL232CBEZ a suitable replacement for ICL232CBE?

A: ICL232CBEZ is parametrically equivalent with identical electrical specifications. The primary differences are packaging format (Tube) and compliance status (ROHS3 Compliant versus RoHS non-compliant). Both parts are obsolete.

Q: Can ADM232AARNZ replace ICL232CBE?

A: ADM232AARNZ is functionally equivalent but uses a 16-SOP package (0.154", 3.90mm width) instead of 16-SOIC. Direct PCB substitution is not possible without layout redesign. This alternative is suitable only when package footprint modification is acceptable.

Q: What inventory status should I prioritize for new designs?

A: Select parts with Active product status: MAX232CWE+, MAX232CWE+T, MAX232EWE+, MAX232EWE+T, or ADM232AARNZ. These ensure long-term availability and supply chain continuity. Obsolete parts should be avoided for new designs.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed are ROHS3 compliant except the original ICL232CBE (RoHS non-compliant). For regulatory compliance requirements, select from the substitute list.

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