MAX207ECWG RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The MAX207ECWG is a full-duplex RS232 transceiver with 5 drivers and 3 receivers, manufactured by Analog Devices Inc./Maxim Integrated in a 24-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The part operates across industrial temperature ranges and supports data rates up to 120 kbps, making it suitable for legacy serial communication applications requiring full RS232 protocol compliance.

Key Parameters

Parameter	Specification
Part Number	MAX207ECWG
Manufacturer	Analog Devices Inc./Maxim Integrated
Type	Transceiver
Protocol	RS232
Drivers/Receivers	5/3
Duplex	Full
Data Rate	120 kbps
Supply Voltage	4.75V ~ 5.25V
Operating Temperature	-40°C ~ 85°C
Package	24-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
Receiver Hysteresis	500 mV

Substitute Part Grouping Explanation

Substitution eligibility for the MAX207ECWG is determined by strict parameter matching across the following critical criteria:

Mandatory Matching Parameters:

Protocol: RS232
Number of Drivers/Receivers: 5/3
Duplex: Full
Data Rate: 120 kbps
Supply Voltage: 4.75V ~ 5.25V
Package/Case: 24-SOIC (0.295", 7.50mm Width)
Receiver Hysteresis: 500 mV
Mounting Type: Surface Mount

Allowable Variation:

Operating Temperature Range: Substitutes may have narrower or equivalent temperature ranges. Parts with -40°C ~ 85°C operating range are fully compatible with the original specification. Parts with 0°C ~ 70°C range are compatible for applications not requiring extended temperature operation.
Product Status: Active or Obsolete status does not affect electrical compatibility.
RoHS Compliance: Variations in RoHS status do not affect functional substitution.

All identified substitute parts maintain identical electrical and mechanical specifications within these parameters.

Parameter Comparison

Parameter	MAX207ECWG	MAX207ECWG+	MAX207EEWG+	MAX207CDW	MAX207IDW
Manufacturer	Analog Devices	Analog Devices	Analog Devices	Texas Instruments	Texas Instruments
Protocol	RS232	RS232	RS232	RS232	RS232
Drivers/Receivers	5/3	5/3	5/3	5/3	5/3
Data Rate	120 kbps	120 kbps	120 kbps	120 kbps	120 kbps
Supply Voltage	4.75V ~ 5.25V	4.75V ~ 5.25V	4.75V ~ 5.25V	4.75V ~ 5.25V	4.75V ~ 5.25V
Operating Temperature	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Package	24-SOIC	24-SOIC	24-SOIC	24-SOIC	24-SOIC
Receiver Hysteresis	500 mV	500 mV	500 mV	500 mV	500 mV
Product Status	Obsolete	Active	Active	Obsolete	Obsolete
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: MAX207EEWG+

The MAX207EEWG+ is the optimal substitute for the MAX207ECWG. This part maintains identical operating temperature range (-40°C ~ 85°C), matching the original specification exactly. The part carries Active product status and ROHS3 compliance, providing long-term availability and regulatory alignment for new designs and legacy system support.

Secondary Recommendation: MAX207ECWG+

The MAX207ECWG+ is a direct manufacturer variant with Active product status and ROHS3 compliance. The operating temperature range is restricted to 0°C ~ 70°C. This substitute is suitable for applications where extended low-temperature operation below 0°C is not required.

Alternative Options: MAX207CDW and MAX207IDW

Both MAX207CDW and MAX207IDW maintain full electrical and mechanical compatibility with the original MAX207ECWG. Both parts are classified as Obsolete with restricted operating temperature ranges (0°C ~ 70°C). These options are suitable only for applications with temperature requirements within the 0°C ~ 70°C window and where long-term availability is not a primary concern.

Frequently Asked Questions (FAQ)

Q: Can MAX207EEWG+ be used as a direct replacement for MAX207ECWG in all applications?

A: Yes. The MAX207EEWG+ maintains identical electrical specifications, including operating temperature range (-40°C ~ 85°C), supply voltage (4.75V ~ 5.25V), data rate (120 kbps), and package configuration (24-SOIC). Pin-to-pin compatibility is assured.

Q: What is the difference between MAX207ECWG+ and MAX207EEWG+?

A: Both parts are manufactured by Analog Devices and carry Active product status with ROHS3 compliance. The primary difference is operating temperature range: MAX207ECWG+ operates 0°C ~ 70°C, while MAX207EEWG+ operates -40°C ~ 85°C. Select MAX207EEWG+ for applications requiring extended temperature operation.

Q: Are the Texas Instruments variants (MAX207CDW, MAX207IDW) electrically equivalent?

A: Yes. Both Texas Instruments parts maintain identical electrical and mechanical specifications as the original Analog Devices MAX207ECWG. However, both are classified as Obsolete with 0°C ~ 70°C operating temperature ranges. Use these only when temperature requirements fall within this window.

Q: Does RoHS compliance affect functional substitution?

A: No. RoHS compliance status does not affect electrical or mechanical compatibility. The ROHS3-compliant variants (MAX207ECWG+, MAX207EEWG+, MAX207CDW, MAX207IDW) are functionally equivalent to the non-compliant MAX207ECWG. RoHS compliance is a regulatory and supply chain consideration, not a technical performance factor.

Q: Can I use MAX207ECWG+ in applications requiring -40°C operation?

A: No. MAX207ECWG+ is rated for 0°C ~ 70°C operation only. For applications requiring operation below 0°C, use MAX207EEWG+ or MAX207IDW, both rated -40°C ~ 85°C.

Q: Are there any package or pinout differences between these substitutes?

A: No. All substitute parts use identical 24-SOIC surface mount packaging (0.295", 7.50mm Width) with matching pinouts. PCB layout and footprints are interchangeable.

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