MAX208ECWG RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The MAX208ECWG is a full-duplex RS232 transceiver with 4 drivers and 4 receivers in a 24-SOIC surface mount package, manufactured by Analog Devices Inc./Maxim Integrated. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement continuity. The part operates within a 4.5V to 5.5V supply range with a 120 kbps data rate and 500 mV receiver hysteresis, making it suitable for legacy RS232 communication applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX208ECWG
Manufacturer	Analog Devices Inc./Maxim Integrated
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	4/4
Duplex	Full
Data Rate	120 kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package / Case	24-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
Receiver Hysteresis	500 mV
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX208ECWG is determined by the following critical parameters:

Protocol: RS232
Package / Case: 24-SOIC (0.295", 7.50mm Width)
Mounting Type: Surface Mount
Voltage - Supply: 4.5V ~ 5.5V
Data Rate: 120 kbps
Receiver Hysteresis: 500 mV
Number of Drivers/Receivers: 4/4 (primary requirement) or 4/3 (reduced receiver configuration)
Duplex: Full

Substitute parts are grouped into three categories:

Parametric Equivalents (4/4 Configuration): MAX208CWG+, MAX208ECWG+, MAX238CWG+ — These parts maintain the identical 4 drivers/4 receivers configuration with active product status and RoHS3 compliance.

Parametric Equivalents (4/3 Configuration): MAX206CWG+, MAX206ECWG+, MAX236CWG+ — These parts provide reduced receiver count (4/3) but maintain full electrical compatibility within the same package and protocol specifications.

Direct Equivalents (Alternate Manufacturers): MAX208CDWR, TRS208CDWR — Texas Instruments manufactured equivalents with identical 4/4 driver/receiver configuration and obsolete status.

Upgrade Options (Extended Temperature Range): MAX208IDW, TRS208IDWR — These parts extend the operating temperature range to -40°C ~ 85°C, providing enhanced thermal performance for demanding applications.

Parameter Comparison

Part Number	Manufacturer	Drivers/Receivers	Product Status	Operating Temperature	RoHS Status	Packaging	Inventory (Pcs)
MAX208ECWG	Analog Devices	4/4	Obsolete	0°C ~ 70°C	RoHS non-compliant	24-SOIC	2000
MAX208CWG+	Analog Devices	4/4	Active	0°C ~ 70°C	RoHS3 Compliant	24-SOIC (Tube)	1368
MAX208ECWG+	Analog Devices	4/4	Active	0°C ~ 70°C	RoHS3 Compliant	24-SOIC (Tube)	3357
MAX238CWG+	Analog Devices	4/4	Active	0°C ~ 70°C	RoHS3 Compliant	24-SOIC (Tube)	5900
MAX206CWG+	Analog Devices	4/3	Active	0°C ~ 70°C	RoHS3 Compliant	24-SOIC (Tube)	844
MAX206ECWG+	Analog Devices	4/3	Active	0°C ~ 70°C	RoHS3 Compliant	24-SOIC (Tube)	671
MAX236CWG+	Analog Devices	4/3	Active	0°C ~ 70°C	RoHS3 Compliant	24-SOIC (Tube)	1075
MAX208CDWR	Texas Instruments	4/4	Obsolete	0°C ~ 70°C	RoHS3 Compliant	24-SOIC (CT)	2400
TRS208CDWR	Texas Instruments	4/4	Obsolete	0°C ~ 70°C	RoHS3 Compliant	24-SOIC (CT & Digi-Reel)	5844
MAX208IDW	Texas Instruments	4/4	Obsolete	-40°C ~ 85°C	RoHS3 Compliant	24-SOIC	1108
TRS208IDWR	Texas Instruments	4/4	Obsolete	-40°C ~ 85°C	RoHS3 Compliant	24-SOIC (CT & Digi-Reel)	5643

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): Select MAX208ECWG+ or MAX208CWG+ from Analog Devices. Both maintain the 4/4 driver/receiver configuration, identical electrical parameters, and 24-SOIC package footprint. MAX208ECWG+ offers superior inventory availability (3357 pcs) and active product status with RoHS3 compliance.

For RoHS3 Compliance Requirement: All substitute parts listed except the original MAX208ECWG meet RoHS3 compliance. MAX238CWG+ provides the highest inventory level (5900 pcs) with active status and full electrical compatibility.

For Reduced Receiver Configuration: If application requirements permit operation with 4 drivers and 3 receivers, MAX206ECWG+, MAX206CWG+, or MAX236CWG+ are viable alternatives. These parts maintain active product status and RoHS3 compliance.

For Extended Temperature Range: MAX208IDW or TRS208IDWR extend operating temperature to -40°C ~ 85°C, suitable for industrial or automotive applications requiring enhanced thermal performance. Both retain 4/4 driver/receiver configuration and RoHS3 compliance.

For Alternate Manufacturer Source: MAX208CDWR or TRS208CDWR from Texas Instruments provide direct electrical equivalence with identical 4/4 configuration. TRS208CDWR offers higher inventory (5844 pcs) and Digi-Reel packaging option.

Frequently Asked Questions (FAQ)

Q: Can MAX206CWG+ directly replace MAX208ECWG? A: MAX206CWG+ is electrically compatible but provides 4 drivers with 3 receivers instead of 4/4. Substitution is valid only if the application requires no more than 3 receiver channels. All other electrical parameters, package, and protocol specifications are identical.

Q: What is the primary difference between MAX208ECWG and MAX208ECWG+? A: The "+" suffix indicates RoHS3 compliance and active product status. MAX208ECWG+ is the recommended modern equivalent for the obsolete MAX208ECWG, with identical electrical specifications and 24-SOIC package compatibility.

Q: Are Texas Instruments parts (MAX208CDWR, TRS208CDWR) pin-compatible with Analog Devices MAX208ECWG? A: Yes. Both manufacturers' 4/4 transceiver configurations maintain identical pin assignments, electrical specifications, and 24-SOIC package dimensions. Direct PCB substitution is supported.

Q: Which substitute part offers the best long-term availability? A: MAX238CWG+ from Analog Devices provides the highest inventory (5900 pcs) with active product status and RoHS3 compliance. This part is recommended for new designs requiring sustained component availability.

Q: Can I use MAX208IDW as a drop-in replacement for MAX208ECWG? A: MAX208IDW is electrically compatible with identical 4/4 configuration and 24-SOIC package. The primary difference is extended operating temperature range (-40°C ~ 85°C vs. 0°C ~ 70°C). Substitution is valid for all applications and recommended for designs requiring enhanced thermal performance.

Q: What packaging options are available for substitute parts? A: Analog Devices parts are supplied in Tube packaging. Texas Instruments parts are available in Cut Tape (CT) or Cut Tape & Digi-Reel® formats. Packaging selection depends on procurement and assembly requirements.

Q: Are all substitute parts RoHS3 compliant? A: All substitute parts listed are RoHS3 compliant. The original MAX208ECWG is RoHS non-compliant. RoHS3 compliance is a key advantage of modern equivalents for regulatory and environmental requirements.

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