SP208EEA-L Equivalent & Substitute Parts

Part Overview

The SP208EEA-L is a 4/4 full-duplex RS232 transceiver IC manufactured by MaxLinear, Inc., housed in a 24-SSOP 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 a supply voltage range of 4.5V to 5.5V with an operating temperature range of -40°C to 85°C, supporting data rates up to 230kbps with 500 mV receiver hysteresis.

Key Parameters

Parameter	SP208EEA-L
Manufacturer	MaxLinear, Inc.
Type	Transceiver
Protocol	RS232
Drivers/Receivers	4/4
Duplex	Full
Data Rate	230kbps
Receiver Hysteresis	500 mV
Supply Voltage	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package	24-SSOP (0.209", 5.30mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
Moisture Sensitivity Level	2 (1 Year)

Substitute Part Grouping Explanation

Substitution for the SP208EEA-L is determined by strict electrical and mechanical compatibility across the following parameters:

Critical Matching Parameters:

Protocol: RS232
Drivers/Receivers: 4/4 configuration
Duplex: Full
Supply Voltage: 4.5V ~ 5.5V
Package: 24-SSOP (0.209", 5.30mm Width)
Mounting Type: Surface Mount

Performance Parameters (Allowable Variation):

Data Rate: Minimum 230kbps (SP208EEA-L specification)
Receiver Hysteresis: 500 mV or 650 mV acceptable
Operating Temperature: -40°C ~ 85°C or 0°C ~ 70°C acceptable for extended range applications

Substitute parts are grouped into two categories based on data rate capability: parts supporting 230kbps (full performance match) and parts supporting 120kbps (reduced performance, application-dependent).

Parameter Comparison

Part Number	Manufacturer	Data Rate	Receiver Hysteresis	Operating Temperature	Product Status	Packaging	RoHS Status
SP208EEA-L	MaxLinear, Inc.	230kbps	500 mV	-40°C ~ 85°C	Obsolete	Tube	Not specified
ADM208ARSZ	Analog Devices Inc.	120kbps	650 mV	-40°C ~ 85°C	Active	Tube	ROHS3 Compliant
ADM208ARSZ-REEL	Analog Devices Inc.	120kbps	650 mV	-40°C ~ 85°C	Active	Tape & Reel (TR)	ROHS3 Compliant
ADM208EARSZ	Analog Devices Inc.	230kbps	650 mV	-40°C ~ 85°C	Active	Tube	ROHS3 Compliant
ADM208EARSZ-REEL	Analog Devices Inc.	230kbps	650 mV	-40°C ~ 85°C	Active	Cut Tape (CT) & Digi-Reel®	ROHS3 Compliant
MAX208CAG+	Analog Devices Inc./Maxim Integrated	120kbps	500 mV	0°C ~ 70°C	Active	Tube	ROHS3 Compliant
MAX208CAG+T	Analog Devices Inc./Maxim Integrated	120kbps	500 mV	0°C ~ 70°C	Active	Tape & Reel (TR)	ROHS3 Compliant
MAX208CDB	Texas Instruments	120kbps	500 mV	0°C ~ 70°C	Obsolete	Tube	ROHS3 Compliant
MAX208CDBR	Texas Instruments	120kbps	500 mV	0°C ~ 70°C	Obsolete	Cut Tape (CT) & Digi-Reel®	ROHS3 Compliant
MAX208ECAG+	Analog Devices Inc./Maxim Integrated	120kbps	500 mV	-40°C ~ 85°C	Active	Tube	ROHS3 Compliant
MAX208ECAG+T	Analog Devices Inc./Maxim Integrated	120kbps	500 mV	0°C ~ 70°C	Active	Tape & Reel (TR)	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation for Full Performance Match:

ADM208EARSZ and ADM208EARSZ-REEL are the preferred substitutes, offering 230kbps data rate capability matching the SP208EEA-L specification. Both parts are manufactured by Analog Devices Inc., carry Active product status, and are ROHS3 compliant. The choice between tube (ADM208EARSZ) and tape & reel (ADM208EARSZ-REEL) packaging depends on procurement and assembly requirements.

Alternative Recommendations for Reduced Data Rate Applications:

For applications where 120kbps data rate is acceptable, the following active parts provide extended product lifecycle support:

MAX208ECAG+ (Tube packaging, -40°C ~ 85°C operating range)
MAX208ECAG+T (Tape & Reel packaging, 0°C ~ 70°C operating range)
ADM208ARSZ (Tube packaging, -40°C ~ 85°C operating range)
ADM208ARSZ-REEL (Tape & Reel packaging, -40°C ~ 85°C operating range)

All recommended active substitutes are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1), providing superior handling and storage characteristics compared to the original SP208EEA-L (MSL 2, 1 Year).

Obsolete Parts to Avoid:

MAX208CDB and MAX208CDBR carry Obsolete product status and should not be selected for new designs or long-term system support, despite electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use a 120kbps substitute in place of the 230kbps SP208EEA-L?

A: Yes, if your application operates at or below 120kbps. The 120kbps-rated parts (ADM208ARSZ, MAX208ECAG+, MAX208ECAG+T) are electrically compatible and will function correctly at lower data rates. However, if your system requires 230kbps operation, only ADM208EARSZ or ADM208EARSZ-REEL are suitable.

Q: What is the difference between tube and tape & reel packaging?

A: Tube packaging is suitable for manual assembly or small-volume procurement. Tape & reel packaging is designed for automated pick-and-place assembly and high-volume production. Both contain identical die and electrical specifications; the difference is in handling and delivery format.

Q: Are all substitute parts pin-compatible with the SP208EEA-L?

A: Yes. All listed substitutes use the 24-SSOP package with identical pinout and electrical interface specifications for RS232 4/4 transceiver functionality.

Q: What does ROHS3 compliance mean?

A: ROHS3 compliance indicates the part meets the Restriction of Hazardous Substances Directive, restricting lead, cadmium, mercury, and other hazardous materials. All active substitute parts listed are ROHS3 compliant.

Q: Why is the operating temperature range different on some MAX208 parts?

A: MAX208CAG+, MAX208CAG+T, MAX208CDB, and MAX208CDBR are specified for 0°C ~ 70°C operation, a narrower range than the SP208EEA-L (-40°C ~ 85°C). These parts are suitable only for applications within the 0°C ~ 70°C range. For full temperature range compatibility, select ADM208EARSZ, ADM208EARSZ-REEL, ADM208ARSZ, ADM208ARSZ-REEL, or MAX208ECAG+.

Q: What is receiver hysteresis and does the 650 mV specification on ADM208 parts affect compatibility?

A: Receiver hysteresis defines the voltage difference between rising and falling threshold levels, affecting noise immunity. The SP208EEA-L specifies 500 mV; ADM208 parts specify 650 mV. Both values are within acceptable RS232 transceiver design margins and do not prevent functional substitution. The higher hysteresis on ADM208 parts provides enhanced noise immunity in electrically noisy environments.

Q: Can I mix packaging types in the same design?

A: Yes. Tube and tape & reel packaging contain identical components; the packaging format is a procurement and assembly consideration only. You may use different packaging formats across production batches without affecting electrical performance or compatibility.

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