SP3232EUCP-L RS232 Transceiver: Equivalent & Substitute Parts

Part Overview

The SP3232EUCP-L is a 2/2 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed in a 16-PDIP package. This interface IC operates across a 3V to 5.5V supply range with a 1Mbps data rate capability and 300mV receiver hysteresis. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations.

Key Parameters

Parameter	SP3232EUCP-L
Manufacturer	MaxLinear, Inc.
Type	Transceiver
Protocol	RS232
Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	300 mV
Data Rate	1 Mbps
Voltage Supply	3V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Through Hole
Package	16-DIP (0.300", 7.62mm)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the SP3232EUCP-L is determined by the following critical parameters:

Package Compatibility: All substitutes must use 16-DIP (0.300", 7.62mm) through-hole packaging
Functional Equivalence: 2/2 full-duplex RS232 transceiver configuration
Electrical Compatibility: Supply voltage range and operating temperature range must accommodate the original application
Data Rate Capability: Substitutes must support the required communication speed
Receiver Hysteresis: Acceptable variation within signal integrity requirements

Substitute parts are grouped into two categories based on supply voltage compatibility and product status:

Category A - Extended Supply Range (3V ~ 5.5V): ADM3202ANZ provides the closest electrical match to the original part, supporting the full 3V to 5.5V supply range.

Category B - Standard Supply Range (4.5V ~ 5.5V): Analog Devices ADM202 and ADM232 series, along with Renesas HIN202 and HIN232 series, operate within the 4.5V to 5.5V range and are suitable for applications where the lower 3V supply is not required.

Parameter Comparison

Part Number	Manufacturer	Drivers/Receivers	Data Rate	Voltage Supply	Operating Temp	Receiver Hysteresis	Product Status	RoHS Status
SP3232EUCP-L	MaxLinear, Inc.	2/2	1 Mbps	3V ~ 5.5V	0°C ~ 70°C	300 mV	Obsolete	Not specified
ADM202EANZ	Analog Devices Inc.	2/2	230 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	650 mV	Active	ROHS3 Compliant
ADM202JNZ	Analog Devices Inc.	2/2	Not specified	4.5V ~ 5.5V	0°C ~ 70°C	400 mV	Active	ROHS3 Compliant
ADM232AANZ	Analog Devices Inc.	2/2	200 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	400 mV	Active	ROHS3 Compliant
ADM232LANZ	Analog Devices Inc.	2/2	120 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	650 mV	Active	ROHS3 Compliant
ADM232LJNZ	Analog Devices Inc.	2/2	120 kbps	4.5V ~ 5.5V	0°C ~ 70°C	650 mV	Active	ROHS3 Compliant
ADM3202ANZ	Analog Devices Inc.	2/2	460 kbps	3V ~ 5.5V	-40°C ~ 85°C	400 mV	Active	ROHS3 Compliant
HIN202ECPZ	Renesas Electronics Corporation	2/2	230 kbps	4.5V ~ 5.5V	0°C ~ 70°C	500 mV	Active	ROHS3 Compliant
HIN232ACPZ	Renesas Electronics Corporation	2/2	230 kbps	4.5V ~ 5.5V	0°C ~ 70°C	500 mV	Active	ROHS3 Compliant
HIN232CPZ	Renesas Electronics Corporation	2/2	120 kbps	4.5V ~ 5.5V	0°C ~ 70°C	500 mV	Active	ROHS3 Compliant
HIN232ECPZ	Renesas Electronics Corporation	2/2	230 kbps	4.5V ~ 5.5V	0°C ~ 70°C	500 mV	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute: ADM3202ANZ is the recommended primary substitute. It maintains the original 3V to 5.5V supply voltage range, supports higher data rates (460 kbps), and carries active product status with ROHS3 compliance. This part provides the most direct functional replacement for the obsolete SP3232EUCP-L.

Secondary Substitutes for 4.5V ~ 5.5V Applications: When the lower 3V supply voltage is not required, the following active parts provide suitable alternatives:

ADM202EANZ and HIN202ECPZ: Both support 230 kbps data rates with extended operating temperature ranges (-40°C to 85°C), suitable for industrial environments
ADM232AANZ: Offers 200 kbps data rate with extended temperature range and ROHS3 compliance
HIN232ECPZ: Provides 230 kbps capability with Renesas manufacturing and ROHS3 compliance

Temperature-Matched Substitutes: For applications requiring the original 0°C to 70°C operating range without extended low-temperature operation, ADM202JNZ, ADM232LJNZ, HIN202ECPZ, HIN232ACPZ, HIN232CPZ, and HIN232ECPZ are available.

All substitute parts are manufactured by established semiconductor suppliers (Analog Devices Inc. and Renesas Electronics Corporation), carry active product status, and comply with ROHS3 regulations, ensuring long-term availability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can ADM3202ANZ directly replace SP3232EUCP-L in existing designs?

A: Yes. ADM3202ANZ maintains the identical 16-DIP package, 2/2 full-duplex RS232 configuration, and 3V to 5.5V supply range. Pin-to-pin compatibility exists for through-hole mounting applications.

Q: What is the primary difference between ADM202, ADM232, and ADM3202 series?

A: The ADM3202 series supports the full 3V to 5.5V supply range and higher data rates (460 kbps). ADM202 and ADM232 series operate within 4.5V to 5.5V and support lower data rates (120-230 kbps). Selection depends on application supply voltage requirements and communication speed.

Q: Are Renesas HIN232 parts compatible with the original SP3232EUCP-L?

A: Yes. HIN232 series parts (HIN232ACPZ, HIN232CPZ, HIN232ECPZ) provide 2/2 full-duplex RS232 functionality in 16-DIP packaging with 4.5V to 5.5V supply operation. They are suitable for applications not requiring the 3V lower supply limit.

Q: What does receiver hysteresis variation mean for substitution?

A: Receiver hysteresis (300-650 mV across the substitute range) affects input signal threshold behavior. The original SP3232EUCP-L specifies 300 mV. Substitutes with higher hysteresis (400-650 mV) provide increased noise immunity but may require slightly larger input signal transitions. This is acceptable for standard RS232 applications operating within specification.

Q: Which substitute offers the best data rate performance?

A: ADM3202ANZ supports 460 kbps, the highest among available substitutes. This exceeds the original 1 Mbps specification but provides superior performance for high-speed RS232 communication requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, meeting current environmental and regulatory requirements for electronic component manufacturing.

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