SP207CT-L Equivalent & Substitute Parts

Part Overview

The SP207CT-L is a full-duplex RS232 transceiver manufactured by MaxLinear, Inc., configured with 5 drivers and 3 receivers in a 24-SOIC surface mount package. This component is classified as obsolete, indicating discontinued production and limited availability. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support long-term product support for applications utilizing this interface IC.

Key Parameters

Parameter	SP207CT-L
Manufacturer	MaxLinear, Inc.
Type	Transceiver
Protocol	RS232
Drivers/Receivers	5/3
Duplex	Full
Data Rate	120 Kbps
Supply Voltage	4.5V – 5.5V
Operating Temperature	0°C – 70°C
Package	24-SOIC (0.295", 7.50mm Width)
Receiver Hysteresis	500 mV
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the SP207CT-L is determined by strict equivalence in the following critical parameters:

RS232 protocol compliance
5 driver / 3 receiver configuration
Full-duplex operation
24-SOIC package footprint
Surface mount mounting type
Supply voltage range compatibility (minimum 4.5V, maximum 5.5V)
Data rate capability (minimum 120 Kbps)

Substitute parts are grouped into two categories based on operational temperature range and receiver hysteresis specifications:

Category A (Extended Temperature Range): Analog Devices ADM207 series parts with operating temperature range of –40°C to +85°C and 650 mV receiver hysteresis. These parts are active products with enhanced environmental specifications.

Category B (Standard Temperature Range): Maxim Integrated MAX207 series parts with operating temperature range of 0°C to +70°C and 500 mV receiver hysteresis, matching the original SP207CT-L specifications.

Parameter Comparison

Part Number	Manufacturer	Drivers/Receivers	Data Rate	Supply Voltage	Operating Temp	Receiver Hysteresis	Package	Product Status	Packaging Type
SP207CT-L	MaxLinear, Inc.	5/3	120 Kbps	4.5V – 5.5V	0°C – 70°C	500 mV	24-SOIC	Obsolete	Tube
ADM207ARZ	Analog Devices Inc.	5/3	120 Kbps	4.5V – 5.5V	–40°C – 85°C	650 mV	24-SOIC	Active	Tube
ADM207ARZ-REEL	Analog Devices Inc.	5/3	120 Kbps	4.5V – 5.5V	–40°C – 85°C	650 mV	24-SOIC	Active	Tape & Reel
ADM207EARZ	Analog Devices Inc.	5/3	230 Kbps	4.5V – 5.5V	–40°C – 85°C	650 mV	24-SOIC	Active	Tube
ADM207EARZ-REEL	Analog Devices Inc.	5/3	230 Kbps	4.5V – 5.5V	–40°C – 85°C	650 mV	24-SOIC	Active	Tape & Reel
MAX207CDW	Texas Instruments	5/3	120 Kbps	4.75V – 5.25V	0°C – 70°C	500 mV	24-SOIC	Obsolete	Tube
MAX207CDWR	Texas Instruments	5/3	120 Kbps	4.75V – 5.25V	0°C – 70°C	500 mV	24-SOIC	Obsolete	Tape & Reel
MAX207CWG+	Analog Devices Inc./Maxim Integrated	5/3	120 Kbps	4.75V – 5.25V	0°C – 70°C	500 mV	24-SOIC	Active	Tube
MAX207CWG+T	Analog Devices Inc./Maxim Integrated	5/3	120 Kbps	4.75V – 5.25V	0°C – 70°C	500 mV	24-SOIC	Active	Tape & Reel
MAX207ECWG+	Analog Devices Inc./Maxim Integrated	5/3	120 Kbps	4.75V – 5.25V	0°C – 70°C	500 mV	24-SOIC	Active	Tube
MAX207ECWG+T	Analog Devices Inc./Maxim Integrated	5/3	120 Kbps	4.75V – 5.25V	0°C – 70°C	500 mV	24-SOIC	Active	Tape & Reel

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

The MAX207CWG+, MAX207CWG+T, MAX207ECWG+, and MAX207ECWG+T parts from Analog Devices Inc./Maxim Integrated provide direct functional equivalence to the SP207CT-L. These parts maintain identical operating temperature range (0°C – 70°C), receiver hysteresis (500 mV), and data rate (120 Kbps). All are active products with ROHS3 compliance and unlimited moisture sensitivity rating, ensuring long-term availability and regulatory compliance.

For Extended Environmental Performance:

The ADM207ARZ, ADM207ARZ-REEL, ADM207EARZ, and ADM207EARZ-REEL parts from Analog Devices Inc. offer extended operating temperature range (–40°C – 85°C) and are active products. The ADM207EARZ and ADM207EARZ-REEL variants provide enhanced data rate capability (230 Kbps) while maintaining full RS232 5/3 transceiver functionality. These parts are suitable for applications requiring broader environmental specifications.

Packaging Considerations:

Tube packaging is appropriate for lower-volume applications and manual assembly processes. Tape & Reel (TR) packaging is specified for high-volume production and automated pick-and-place assembly. Selection between packaging types depends on manufacturing process requirements rather than functional performance.

Frequently Asked Questions (FAQ)

Q: Can ADM207 series parts replace SP207CT-L in all applications?

A: ADM207 parts are functionally compatible as RS232 5/3 transceivers in the same 24-SOIC package. However, the extended operating temperature range (–40°C – 85°C versus 0°C – 70°C) and increased receiver hysteresis (650 mV versus 500 mV) represent specification differences. Applications operating within 0°C – 70°C with 500 mV hysteresis requirements should use MAX207 series parts for exact parameter matching.

Q: What is the difference between MAX207CWG+ and MAX207ECWG+?

A: Both parts are functionally identical RS232 5/3 transceivers with matching electrical specifications. The designation difference reflects manufacturing or qualification variations within the Maxim Integrated product line. Both are active products suitable for new designs.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts listed (ADM207 and MAX207 series) are ROHS3 compliant. The obsolete parts (MAX207CDW, MAX207CDWR) are also ROHS3 compliant. Compliance status is provided in the manufacturer specifications.

Q: What packaging should be selected for production assembly?

A: Tape & Reel (TR) packaging is standard for automated surface mount assembly and high-volume production. Tube packaging is used for manual assembly, lower volumes, or component evaluation. Functional performance is identical between packaging types; selection is based on manufacturing process requirements.

Q: Can MAX207 parts with 4.75V – 5.25V supply voltage replace SP207CT-L with 4.5V – 5.5V supply voltage?

A: MAX207 parts have a narrower supply voltage range (4.75V – 5.25V) compared to SP207CT-L (4.5V – 5.5V). Applications requiring operation at 4.5V or 5.5V must use ADM207 parts, which maintain the full 4.5V – 5.5V range. Verify your application's supply voltage requirements before selection.

Q: Is the 230 Kbps data rate of ADM207EARZ backward compatible with 120 Kbps applications?

A: Yes. The ADM207EARZ and ADM207EARZ-REEL parts support 230 Kbps data rate, which is a superset capability. Applications operating at 120 Kbps will function correctly with these parts. Higher data rate capability does not affect lower-speed operation.

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