MAX3386ECUP RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The MAX3386ECUP is a full-duplex RS232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, featuring 3 drivers and 2 receivers in a 20-TSSOP surface mount package. This component is classified as obsolete, with 7210 units currently in stock. Due to its obsolete status, identifying equivalent and substitute parts is essential for ongoing system support, design updates, and long-term component availability planning.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX3386ECUP
Manufacturer	Analog Devices Inc./Maxim Integrated
Protocol	RS232
Number of Drivers/Receivers	3/2
Duplex	Full
Data Rate	250 kbps
Voltage Supply Range	3V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package / Case	20-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Receiver Hysteresis	500 mV
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX3386ECUP is determined by the following critical parameters:

Protocol Compatibility: RS232 full-duplex transceiver functionality
Driver/Receiver Configuration: 3 drivers and 2 receivers (3/2 topology)
Electrical Specifications: 3V ~ 5.5V supply voltage, 250 kbps data rate, 500 mV receiver hysteresis
Package Compatibility: 20-TSSOP surface mount package with identical pinout
Operating Temperature Range: Minimum 0°C ~ 70°C support
Regulatory Compliance: RoHS and REACH status alignment

Substitute parts are grouped into three categories:

Parametric Equivalents (MAX3223ECUP+, MAX3224CUP+, MAX3224ECUP+, MAX3386ECUP+): These parts maintain identical electrical specifications and package form factor but differ in driver/receiver count (2/2 configuration for MAX3223/MAX3224 series) or product status (active vs. obsolete). They are suitable for applications where the reduced driver/receiver count does not impact system requirements.

Direct Manufacturer Equivalents (SP3203ECY-L/TR, TRS3386ECPWR): These parts provide the same 3/2 driver/receiver configuration and electrical specifications from alternative manufacturers (MaxLinear, Texas Instruments). They maintain full functional compatibility with identical package specifications.

Upgrade Parts (MAX3386EIPW, MAX3386EIPWR, SP3203EEY-L/TR, TRS3386EIPWR): These parts offer extended operating temperature ranges (-40°C ~ 85°C) and active product status, providing enhanced reliability and long-term availability compared to the obsolete MAX3386ECUP.

Parameter Comparison

Part Number	Manufacturer	Drivers/Receivers	Supply Voltage	Data Rate	Operating Temp	Package	Product Status	RoHS Status
MAX3386ECUP	Analog Devices	3/2	3V ~ 5.5V	250 kbps	0°C ~ 70°C	20-TSSOP	Obsolete	Non-compliant
MAX3223ECUP+	Analog Devices	2/2	3V ~ 5.5V	250 kbps	0°C ~ 70°C	20-TSSOP	Active	ROHS3 Compliant
MAX3224CUP+	Analog Devices	2/2	3V ~ 5.5V	250 kbps	0°C ~ 70°C	20-TSSOP	Active	ROHS3 Compliant
MAX3224ECUP+	Analog Devices	2/2	3V ~ 5.5V	250 kbps	0°C ~ 70°C	20-TSSOP	Active	ROHS3 Compliant
MAX3386ECUP+	Analog Devices	3/2	3V ~ 5.5V	250 kbps	0°C ~ 70°C	20-TSSOP	Active	ROHS3 Compliant
SP3203ECY-L/TR	MaxLinear	3/2	3V ~ 5.5V	250 kbps	0°C ~ 70°C	20-TSSOP	Active	RoHS Compliant
TRS3386ECPWR	Texas Instruments	3/2	3V ~ 5.5V	250 kbps	0°C ~ 70°C	20-TSSOP	Active	ROHS3 Compliant
MAX3386EIPW	Texas Instruments	3/2	3V ~ 5.5V	250 kbps	-40°C ~ 85°C	20-TSSOP	Last Time Buy	ROHS3 Compliant
MAX3386EIPWR	Texas Instruments	3/2	3V ~ 5.5V	250 kbps	-40°C ~ 85°C	20-TSSOP	Last Time Buy	ROHS3 Compliant
SP3203EEY-L/TR	MaxLinear	3/2	3V ~ 5.5V	250 kbps	-40°C ~ 85°C	20-TSSOP	Active	RoHS Compliant
TRS3386EIPWR	Texas Instruments	3/2	3V ~ 5.5V	250 kbps	-40°C ~ 85°C	20-TSSOP	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications)

MAX3386ECUP+ is the primary direct replacement, maintaining identical electrical and thermal specifications while transitioning from obsolete to active product status with ROHS3 compliance. This part is suitable for immediate substitution in existing designs without circuit modifications.

MAX3223ECUP+, MAX3224CUP+, and MAX3224ECUP+ are suitable alternatives when the application requires only 2 drivers and 2 receivers. These parts maintain identical supply voltage, data rate, and operating temperature ranges while offering active product status and RoHS compliance. Circuit design review is required to confirm that the reduced driver/receiver count does not impact system functionality.

For Cross-Manufacturer Substitution (Same Specifications, Different Manufacturer)

SP3203ECY-L/TR (MaxLinear) and TRS3386ECPWR (Texas Instruments) provide identical 3/2 driver/receiver configuration, electrical specifications, and operating temperature range. Both parts are active products with RoHS compliance, offering improved long-term availability compared to the obsolete MAX3386ECUP.

For Enhanced Reliability (Extended Temperature Range)

MAX3386EIPW, MAX3386EIPWR, SP3203EEY-L/TR, and TRS3386EIPWR extend the operating temperature range to -40°C ~ 85°C, providing enhanced performance in industrial and automotive applications. These parts maintain the 3/2 driver/receiver configuration and are available with active product status or last-time-buy status, ensuring regulatory compliance and long-term support.

Regulatory Compliance Considerations

The original MAX3386ECUP is RoHS non-compliant. All recommended substitutes are RoHS compliant (either RoHS or ROHS3), supporting modern manufacturing and environmental standards. REACH status is unaffected across all substitute parts.

Frequently Asked Questions (FAQ)

Q: Can MAX3223ECUP+ or MAX3224ECUP+ directly replace MAX3386ECUP in my design?

A: These parts are electrically compatible in terms of supply voltage, data rate, and operating temperature. However, they feature 2/2 driver/receiver configuration instead of 3/2. Direct replacement is possible only if your circuit design uses a maximum of 2 drivers and 2 receivers. Circuit review is required to confirm compatibility.

Q: What is the difference between MAX3386ECUP and MAX3386ECUP+?

A: Both parts maintain identical electrical specifications and package form factor. The primary difference is product status: MAX3386ECUP is obsolete, while MAX3386ECUP+ is active. MAX3386ECUP+ also carries ROHS3 compliance, making it the recommended choice for new designs and long-term availability.

Q: Are SP3203ECY-L/TR and TRS3386ECPWR pin-compatible with MAX3386ECUP?

A: Yes. Both parts maintain the 20-TSSOP package with identical pinout, electrical specifications, and 3/2 driver/receiver configuration. They are direct functional equivalents from alternative manufacturers (MaxLinear and Texas Instruments respectively).

Q: Should I use the extended temperature range versions (MAX3386EIPWR, SP3203EEY-L/TR, TRS3386EIPWR)?

A: Extended temperature range parts (-40°C ~ 85°C) are recommended for industrial, automotive, and harsh environment applications. For standard commercial applications operating within 0°C ~ 70°C, standard temperature range parts are sufficient. Extended range parts offer enhanced reliability margins and are available with active product status.

Q: What is the difference between packaging options (Tube, Tape & Reel, Cut Tape)?

A: Packaging affects handling and storage but does not impact electrical functionality. Tube packaging is suitable for small quantities and manual assembly. Tape & Reel and Cut Tape & Digi-Reel® are optimized for automated assembly processes. Select packaging based on your manufacturing process requirements.

Q: Are all substitute parts REACH compliant?

A: Yes. All substitute parts listed maintain REACH Unaffected status, ensuring compliance with European chemical regulations.

Q: What inventory levels are available for substitute parts?

A: MAX3386ECUP+ (1900 pcs), SP3203ECY-L/TR (8155 pcs), TRS3386ECPWR (185546 pcs), MAX3386EIPWR (6352 pcs), and TRS3386EIPWR (3920 pcs) are currently in stock. Inventory levels should be confirmed with your supplier for long-term planning.

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