MAX3238ECDBR Equivalent & Substitute Parts

Part Overview

The MAX3238ECDBR is an active RS232 transceiver IC manufactured by Texas Instruments, configured as a 5/3 full-duplex transceiver in a 28-SSOP surface mount package. This component is classified as Active product status and is ROHS3 compliant. Alternative equivalent parts are necessary when the original part becomes unavailable, when specific packaging formats are required for production workflows, or when extended operating temperature ranges are needed for particular application environments.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX3238ECDBR
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	5/3
Duplex	Full
Receiver Hysteresis	300 mV
Data Rate	400 kbps
Voltage - Supply	3V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	28-SSOP (0.209", 5.30mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the MAX3238ECDBR is determined by the following critical parameters:

Mandatory Matching Parameters:

Protocol: RS232
Number of Drivers/Receivers: 5/3
Duplex: Full
Voltage - Supply: 3V ~ 5.5V
Mounting Type: Surface Mount
Package / Case: 28-SSOP (0.209", 5.30mm Width)
Product Status: Active
RoHS Status: ROHS3 Compliant

Variable Parameters (Allowable Differences):

Receiver Hysteresis: 300 mV, 500 mV, or 600 mV
Data Rate: 250 kbps or 400 kbps
Operating Temperature: 0°C ~ 70°C or -40°C ~ 85°C
Packaging Format: Tape & Reel (TR), Tube, or Cut Tape (CT) & Digi-Reel®
Moisture Sensitivity Level (MSL): 1, 2, or 3

All substitute parts listed maintain full compatibility with the MAX3238ECDBR across mandatory parameters while offering flexibility in performance characteristics and packaging options.

Parameter Comparison

Part Number	Manufacturer	Receiver Hysteresis	Data Rate	Operating Temperature	Packaging	MSL	Inventory (Pcs)
MAX3238ECDBR	Texas Instruments	300 mV	400 kbps	0°C ~ 70°C	Tape & Reel (TR)	1	2200
MAX3238ECAI+	Analog Devices Inc./Maxim Integrated	600 mV	250 kbps	0°C ~ 70°C	Tube	1	25300
ICL3238EIAZ	Renesas Electronics Corporation	600 mV	250 kbps	-40°C ~ 85°C	Tube	3	1405
MAX3238CAI+	Analog Devices Inc./Maxim Integrated	500 mV	250 kbps	0°C ~ 70°C	Tube	1	233725
MAX3238CAI+T	Analog Devices Inc./Maxim Integrated	500 mV	250 kbps	0°C ~ 70°C	Tape & Reel (TR)	1	2196
MAX3238EAI+	Analog Devices Inc./Maxim Integrated	300 mV	250 kbps	-40°C ~ 85°C	Tube	1	2000
MAX3238EEAI+	Analog Devices Inc./Maxim Integrated	600 mV	250 kbps	-40°C ~ 85°C	Tube	1	1134
MAX3238EEAI+T	Analog Devices Inc./Maxim Integrated	600 mV	250 kbps	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®	1	11626
SP3238EEA-L/TR	MaxLinear, Inc.	500 mV	250 kbps	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®	2	20890

Engineering Selection Recommendations

For Direct Replacement (Identical Operating Conditions): MAX3238CAI+T is the closest functional equivalent, offering identical operating temperature range (0°C ~ 70°C) and supply voltage specifications as the MAX3238ECDBR. Both parts maintain MSL 1 rating and ROHS3 compliance. The primary difference is packaging format (Tape & Reel vs. alternative formats) and receiver hysteresis specification (500 mV vs. 300 mV).

For Extended Temperature Range Applications: MAX3238EAI+, MAX3238EEAI+, MAX3238EEAI+T, and SP3238EEA-L/TR all support the extended operating temperature range of -40°C ~ 85°C. These parts are suitable for industrial and automotive environments requiring broader thermal performance. All maintain ROHS3 compliance and Active product status.

For High-Volume Production: MAX3238CAI+ offers the largest available inventory (233,725 pcs) while maintaining full compatibility across all mandatory parameters. This part is available in Tube packaging and supports the same supply voltage and operating temperature range as the original part.

For Packaging Flexibility: Multiple packaging options are available across the substitute parts. Tape & Reel (TR) format is available in MAX3238CAI+T and MAX3238ECDBR. Cut Tape (CT) & Digi-Reel® format is available in MAX3238EEAI+T and SP3238EEA-L/TR. Tube packaging is available across multiple manufacturers including Analog Devices Inc./Maxim Integrated and Renesas Electronics Corporation.

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory compliance for new designs.

Frequently Asked Questions (FAQ)

Q: Can MAX3238CAI+ be used as a direct replacement for MAX3238ECDBR?

A: MAX3238CAI+ is functionally compatible across all mandatory parameters (RS232 protocol, 5/3 configuration, full-duplex operation, 3V ~ 5.5V supply, 28-SSOP package, ROHS3 compliance). The primary differences are receiver hysteresis (500 mV vs. 300 mV), data rate (250 kbps vs. 400 kbps), and packaging format (Tube vs. Tape & Reel). Compatibility depends on whether your application can tolerate these parameter variations.

Q: What is the difference between receiver hysteresis specifications?

A: Receiver hysteresis values of 300 mV, 500 mV, and 600 mV represent different input threshold characteristics. The MAX3238ECDBR specifies 300 mV hysteresis. Substitute parts with 500 mV or 600 mV hysteresis will have different noise immunity characteristics and may affect signal integrity in noise-sensitive applications. Selection should be based on your specific signal environment requirements.

Q: Which substitute part supports the widest operating temperature range?

A: MAX3238EAI+, MAX3238EEAI+, MAX3238EEAI+T, and SP3238EEA-L/TR all support -40°C ~ 85°C operating temperature range, compared to the MAX3238ECDBR specification of 0°C ~ 70°C. These parts are suitable for applications requiring extended thermal performance.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts are ROHS3 compliant and maintain Active product status, ensuring regulatory compliance and long-term availability.

Q: What packaging formats are available for substitute parts?

A: Substitute parts are available in three packaging formats: Tape & Reel (TR) in MAX3238CAI+T, Tube in MAX3238ECAI+, MAX3238CAI+, MAX3238EAI+, and MAX3238EEAI+, and Cut Tape (CT) & Digi-Reel® in MAX3238EEAI+T and SP3238EEA-L/TR. Selection depends on your production assembly requirements and handling procedures.

Q: Does data rate difference affect compatibility?

A: The MAX3238ECDBR supports 400 kbps data rate, while most substitute parts support 250 kbps. If your application requires data rates above 250 kbps, verify that the substitute part's 250 kbps specification meets your system requirements. Lower data rate specifications do not prevent operation at lower speeds.

Q: What is Moisture Sensitivity Level (MSL) and why does it vary?

A: MSL indicates the maximum time a component can be exposed to moisture before soldering. MAX3238ECDBR specifies MSL 1 (Unlimited), while ICL3238EIAZ specifies MSL 3 (168 Hours) and SP3238EEA-L/TR specifies MSL 2 (1 Year). Lower MSL ratings require more careful handling and storage procedures. Verify your manufacturing environment can accommodate the MSL requirements of selected substitute parts.

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