SP206CT-L/TR RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The SP206CT-L/TR is a 4/3 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed 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 within a 4.5V to 5.5V supply range with a 120 Kbps data rate and 500 mV receiver hysteresis, designed for industrial and commercial serial communication applications.

Key Parameters

Parameter	SP206CT-L/TR
Manufacturer	MaxLinear, Inc.
Type	Transceiver
Protocol	RS232
Drivers/Receivers	4/3
Duplex	Full
Package	24-SOIC (0.295", 7.50mm Width)
Voltage Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Data Rate	120 Kbps
Receiver Hysteresis	500 mV
Mounting Type	Surface Mount
Product Status	Obsolete
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution for the SP206CT-L/TR is determined by the following critical parameters:

Primary Compatibility Criteria:

Protocol: RS232
Drivers/Receivers Configuration: 4/3
Duplex Mode: Full
Package Type: 24-SOIC
Voltage Supply Range: 4.5V ~ 5.5V
Mounting Type: Surface Mount

Secondary Considerations:

Operating temperature range (wider ranges provide greater flexibility)
Data rate capability (minimum 120 Kbps required)
Receiver hysteresis (500 mV or higher acceptable)
Product status (active parts preferred over obsolete)
Compliance certifications (RoHS3, REACH status)
Moisture sensitivity level (lower MSL preferred for manufacturing reliability)

Substitute parts are grouped into two categories: direct equivalents maintaining identical electrical specifications, and functional equivalents with enhanced operating ranges or data rates while maintaining core 4/3 RS232 transceiver functionality.

Parameter Comparison

Part Number	Manufacturer	Drivers/Receivers	Package	Voltage Supply	Operating Temp	Data Rate	Receiver Hysteresis	Product Status	MSL Rating	RoHS Status
SP206CT-L/TR	MaxLinear, Inc.	4/3	24-SOIC	4.5V ~ 5.5V	0°C ~ 70°C	120 Kbps	500 mV	Obsolete	3	Not specified
ADM206ARZ	Analog Devices Inc.	4/3	24-SOIC	4.5V ~ 5.5V	-40°C ~ 85°C	Not specified	650 mV	Active	1	ROHS3 Compliant
ADM206ARZ-REEL	Analog Devices Inc.	4/3	24-SOIC	4.5V ~ 5.5V	-40°C ~ 85°C	Not specified	650 mV	Active	1	ROHS3 Compliant
ADM206EARZ	Analog Devices Inc.	4/3	24-SOIC	4.5V ~ 5.5V	-40°C ~ 85°C	230 Kbps	650 mV	Active	1	ROHS3 Compliant
ADM206EARZ-REEL	Analog Devices Inc.	4/3	24-SOIC	4.5V ~ 5.5V	-40°C ~ 85°C	230 Kbps	650 mV	Active	1	ROHS3 Compliant
MAX206CWG+	Analog Devices Inc./Maxim Integrated	4/3	24-SOIC	4.5V ~ 5.5V	0°C ~ 70°C	120 Kbps	500 mV	Active	1	ROHS3 Compliant
MAX206ECWG+	Analog Devices Inc./Maxim Integrated	4/3	24-SOIC	4.5V ~ 5.5V	0°C ~ 70°C	120 Kbps	500 mV	Active	1	ROHS3 Compliant
MAX206EEWG+	Analog Devices Inc./Maxim Integrated	4/3	24-SOIC	4.5V ~ 5.5V	-40°C ~ 85°C	120 Kbps	500 mV	Active	1	ROHS3 Compliant
MAX206EEWG+T	Analog Devices Inc./Maxim Integrated	4/3	24-SOIC	4.5V ~ 5.5V	-40°C ~ 85°C	120 Kbps	500 mV	Active	1	ROHS3 Compliant
MAX207CDB	Texas Instruments	5/3	24-SSOP	4.75V ~ 5.25V	0°C ~ 70°C	120 Kbps	500 mV	Obsolete	1	ROHS3 Compliant
MAX207CDBR	Texas Instruments	5/3	24-SSOP	4.75V ~ 5.25V	0°C ~ 70°C	120 Kbps	500 mV	Active	1	ROHS3 Compliant

Engineering Selection Recommendations

Direct Electrical Equivalents (Identical Specifications):

MAX206CWG+ and MAX206ECWG+ are direct electrical equivalents to SP206CT-L/TR, maintaining identical operating temperature range (0°C ~ 70°C), data rate (120 Kbps), receiver hysteresis (500 mV), and supply voltage specifications. Both parts are active products with ROHS3 compliance and MSL rating of 1, providing superior manufacturing reliability compared to the obsolete SP206CT-L/TR.

Enhanced Operating Range Substitutes:

MAX206EEWG+ and MAX206EEWG+T extend the operating temperature range to -40°C ~ 85°C while maintaining all other electrical specifications identical to the original part. These variants are suitable for applications requiring wider temperature operation and are available in both tube and tape & reel packaging options.

ADM206EARZ and ADM206EARZ-REEL provide enhanced data rate capability (230 Kbps) with extended operating temperature range (-40°C ~ 85°C), higher receiver hysteresis (650 mV), and superior MSL rating (1). These parts are recommended for applications requiring higher data throughput or more demanding environmental conditions.

Package Consideration:

MAX207CDBR differs in package configuration (24-SSOP instead of 24-SOIC) and driver/receiver count (5/3 instead of 4/3). This part is not a direct substitute due to package incompatibility and different channel configuration, though it maintains RS232 protocol compliance and similar electrical performance characteristics.

Compliance and Availability:

All recommended substitute parts carry ROHS3 compliance certification and REACH unaffected status. Active product status ensures long-term availability and manufacturing support. MSL rating of 1 (unlimited moisture exposure) provides superior handling flexibility compared to the original part's MSL rating of 3.

Frequently Asked Questions (FAQ)

Q: Can MAX206CWG+ directly replace SP206CT-L/TR in existing designs?

A: Yes. MAX206CWG+ is electrically and functionally identical to SP206CT-L/TR, maintaining the same 4/3 driver/receiver configuration, 24-SOIC package, 120 Kbps data rate, and 0°C ~ 70°C operating temperature range. The primary advantage is active product status with ROHS3 compliance.

Q: What is the difference between ADM206ARZ and ADM206EARZ?

A: Both parts share identical package, voltage supply, and operating temperature specifications. ADM206EARZ provides enhanced data rate capability (230 Kbps versus unspecified for ADM206ARZ) and is recommended for applications requiring higher serial communication speeds.

Q: Why do some substitute parts have extended temperature ranges?

A: Extended temperature range variants (MAX206EEWG+, MAX206EEWG+T, ADM206 series) are designed for industrial and harsh environment applications. These parts maintain core RS232 transceiver functionality while supporting operation from -40°C to 85°C, compared to the original 0°C to 70°C range.

Q: What does the "-REEL" suffix indicate?

A: The "-REEL" suffix denotes tape and reel packaging format, suitable for automated assembly processes. Equivalent tube-packaged versions (ADM206ARZ, ADM206EARZ) are available for manual assembly or lower-volume applications.

Q: Is MAX207CDBR a suitable substitute?

A: MAX207CDBR is not recommended as a direct substitute. While it maintains RS232 protocol compliance and similar electrical performance, it features a different package type (24-SSOP versus 24-SOIC) and different driver/receiver configuration (5/3 versus 4/3), requiring PCB redesign and firmware modifications.

Q: What compliance certifications should I verify for new designs?

A: All recommended substitute parts carry ROHS3 compliance and REACH unaffected status. Verify MSL rating (1 is superior to 3) for your manufacturing process requirements and confirm active product status for long-term supply chain stability.

Q: Can I use parts with higher receiver hysteresis (650 mV) as substitutes?

A: Yes. Higher receiver hysteresis (650 mV versus 500 mV) provides improved noise immunity and is functionally compatible with systems designed for 500 mV hysteresis. This represents an enhancement rather than a limitation.

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