SP206CT-L RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The SP206CT-L is a 4/3 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed in a 24-SOIC surface mount package. This interface IC operates within the 4.5V to 5.5V supply voltage range and supports data rates up to 120 Kbps with a receiver hysteresis of 500 mV. The part is classified as obsolete, making equivalent and substitute components necessary for ongoing system support, redesigns, and production continuity.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution for the SP206CT-L is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

Protocol: RS232
Number of Drivers/Receivers: 4/3
Duplex: Full
Package / Case: 24-SOIC (0.295", 7.50mm Width)
Mounting Type: Surface Mount
Voltage - Supply: 4.5V ~ 5.5V

Acceptable Variation Parameters:

Operating Temperature: The SP206CT-L operates 0°C ~ 70°C. Substitute parts with extended temperature ranges (-40°C ~ 85°C) are acceptable as they encompass the original operating window.
Receiver Hysteresis: The SP206CT-L specifies 500 mV. Substitute parts with 650 mV hysteresis remain functionally compatible within RS232 specifications.
Data Rate: The SP206CT-L supports 120 Kbps. Substitute parts with higher data rates (230 Kbps) are backward compatible.
Packaging Format: Tube and Tape & Reel (TR) packaging are interchangeable for component selection purposes.
Product Status: Active status substitutes are preferred over obsolete parts for long-term availability.

Non-Substitutable Parameters:

Number of Drivers/Receivers different from 4/3 (e.g., MAX207 series with 5/3 configuration) are not direct substitutes due to different channel architecture.

Parameter Comparison

Part Number	Manufacturer	Drivers/Receivers	Package	Voltage Supply	Operating Temp	Receiver Hysteresis	Data Rate	Product Status	Packaging Format
SP206CT-L	MaxLinear, Inc.	4/3	24-SOIC	4.5V ~ 5.5V	0°C ~ 70°C	500 mV	120 Kbps	Obsolete	—
ADM206ARZ	Analog Devices Inc.	4/3	24-SOIC	4.5V ~ 5.5V	-40°C ~ 85°C	650 mV	—	Active	Tube
ADM206ARZ-REEL	Analog Devices Inc.	4/3	24-SOIC	4.5V ~ 5.5V	-40°C ~ 85°C	650 mV	—	Active	Tape & Reel
ADM206EARZ	Analog Devices Inc.	4/3	24-SOIC	4.5V ~ 5.5V	-40°C ~ 85°C	650 mV	230 Kbps	Active	Tube
ADM206EARZ-REEL	Analog Devices Inc.	4/3	24-SOIC	4.5V ~ 5.5V	-40°C ~ 85°C	650 mV	230 Kbps	Active	Tape & Reel
MAX206CWG+T	Analog Devices Inc./Maxim Integrated	4/3	24-SOIC	4.5V ~ 5.5V	0°C ~ 70°C	500 mV	120 Kbps	Active	Tape & Reel
MAX206ECWG+T	Analog Devices Inc./Maxim Integrated	4/3	24-SOIC	4.5V ~ 5.5V	0°C ~ 70°C	500 mV	120 Kbps	Active	Tape & Reel
MAX206EEWG+	Analog Devices Inc./Maxim Integrated	4/3	24-SOIC	4.5V ~ 5.5V	-40°C ~ 85°C	500 mV	120 Kbps	Active	Tube
MAX206EEWG+T	Analog Devices Inc./Maxim Integrated	4/3	24-SOIC	4.5V ~ 5.5V	-40°C ~ 85°C	500 mV	120 Kbps	Active	Tape & Reel

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

MAX206CWG+T and MAX206ECWG+T are the closest functional equivalents to SP206CT-L. Both maintain identical electrical specifications: 4/3 driver/receiver configuration, 500 mV receiver hysteresis, 120 Kbps data rate, and 0°C ~ 70°C operating temperature. Both are manufactured by Analog Devices Inc./Maxim Integrated with active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment.

Secondary Substitutes (Extended Temperature Range):

MAX206EEWG+ and MAX206EEWG+T provide the same electrical performance as the primary substitutes but extend the operating temperature range to -40°C ~ 85°C. These parts are suitable for applications requiring enhanced thermal performance while maintaining identical electrical characteristics. Both carry active product status and ROHS3 compliance.

Alternative Substitutes (Higher Data Rate):

ADM206EARZ and ADM206EARZ-REEL support 230 Kbps data rate, doubling the SP206CT-L specification. These parts maintain the 4/3 configuration, 4.5V ~ 5.5V supply voltage, and 24-SOIC package. The receiver hysteresis increases to 650 mV, which remains within RS232 specification tolerances. Both are active products with ROHS3 compliance.

Packaging Considerations:

Tube packaging (ADM206ARZ, ADM206EARZ, MAX206EEWG+) is suitable for lower-volume applications and manual assembly. Tape & Reel packaging (ADM206ARZ-REEL, ADM206EARZ-REEL, MAX206CWG+T, MAX206ECWG+T, MAX206EEWG+T) is optimized for automated pick-and-place assembly and high-volume production.

Compliance & Availability:

All recommended substitutes carry ROHS3 compliance and REACH unaffected status. All substitute parts are currently active products, eliminating the obsolescence risk associated with the SP206CT-L.

Frequently Asked Questions (FAQ)

Q: Can I use MAX207CDBR as a substitute for SP206CT-L?

A: No. MAX207CDBR has a 5/3 driver/receiver configuration, whereas SP206CT-L requires 4/3. The different channel architecture makes this part incompatible for direct substitution.

Q: What is the difference between ADM206ARZ and ADM206EARZ?

A: Both parts share the same 4/3 configuration, package, and supply voltage. ADM206EARZ supports 230 Kbps data rate compared to ADM206ARZ, which does not specify a data rate. For applications requiring higher bandwidth, ADM206EARZ is the appropriate choice.

Q: Are Tube and Tape & Reel packaging interchangeable?

A: Yes, from an electrical and functional standpoint. Both packaging formats contain identical die and electrical specifications. The choice depends on assembly process requirements: Tube packaging suits manual or low-volume assembly, while Tape & Reel suits automated high-volume production.

Q: Does the 650 mV receiver hysteresis in ADM206 parts affect RS232 compatibility?

A: No. RS232 specifications allow receiver hysteresis variation. The 650 mV hysteresis in ADM206 parts remains within acceptable RS232 operating margins and does not compromise signal integrity or compatibility with standard RS232 drivers.

Q: Which substitute offers the best long-term availability?

A: All recommended substitutes carry active product status. However, MAX206EEWG+T combines active status, extended temperature range (-40°C ~ 85°C), identical electrical specifications to SP206CT-L, and ROHS3 compliance, making it optimal for applications requiring maximum operational flexibility and regulatory compliance.

Q: Can I use a substitute with extended temperature range in a 0°C ~ 70°C application?

A: Yes. Extended temperature range parts (MAX206EEWG+, MAX206EEWG+T, ADM206ARZ, ADM206ARZ-REEL, ADM206EARZ, ADM206EARZ-REEL) encompass the original 0°C ~ 70°C operating window and are fully compatible for such applications.

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