SP3232EHCP-L RS232 Transceiver: Equivalent & Substitute Parts

Part Overview

The SP3232EHCP-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 460Kbps data rate and 300mV receiver hysteresis. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring RS232 communication interfaces.

Key Parameters

Parameter	SP3232EHCP-L
Manufacturer	MaxLinear, Inc.
Type	Transceiver
Protocol	RS232
Drivers/Receivers	2/2
Duplex	Full
Data Rate	460Kbps
Voltage Supply	3V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package/Case	16-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
Receiver Hysteresis	300mV
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the SP3232EHCP-L is determined by strict alignment of the following parameters:

Protocol: RS232 (mandatory)
Drivers/Receivers: 2/2 configuration (mandatory)
Duplex: Full (mandatory)
Package/Case: 16-DIP (0.300", 7.62mm) (mandatory)
Mounting Type: Through Hole (mandatory)
Voltage Supply Range: Must encompass or match 3V ~ 5.5V
Data Rate: Must meet or exceed 460Kbps for direct replacement
Operating Temperature: Must support 0°C ~ 70°C minimum
Receiver Hysteresis: Acceptable range 300mV ~ 650mV

Substitute parts are grouped by active product status and compliance certifications (RoHS3, REACH). Parts with extended temperature ranges (-40°C ~ 85°C) and higher data rates provide enhanced performance margins.

Parameter Comparison

Part Number	Manufacturer	Data Rate	Voltage Supply	Operating Temp	Receiver Hysteresis	Product Status	RoHS Status
SP3232EHCP-L	MaxLinear, Inc.	460Kbps	3V ~ 5.5V	0°C ~ 70°C	300mV	Obsolete	Not specified
ADM202EANZ	Analog Devices Inc.	230kbps	4.5V ~ 5.5V	-40°C ~ 85°C	650mV	Active	RoHS3 Compliant
ADM202JNZ	Analog Devices Inc.	Not specified	4.5V ~ 5.5V	0°C ~ 70°C	400mV	Active	RoHS3 Compliant
ADM232AANZ	Analog Devices Inc.	200kbps	4.5V ~ 5.5V	-40°C ~ 85°C	400mV	Active	RoHS3 Compliant
ADM232LANZ	Analog Devices Inc.	120Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	650mV	Active	RoHS3 Compliant
ADM232LJNZ	Analog Devices Inc.	120Kbps	4.5V ~ 5.5V	0°C ~ 70°C	650mV	Active	RoHS3 Compliant
ADM3202ANZ	Analog Devices Inc.	460Kbps	3V ~ 5.5V	-40°C ~ 85°C	400mV	Active	RoHS3 Compliant
HIN202ECPZ	Renesas Electronics Corporation	230kbps	4.5V ~ 5.5V	0°C ~ 70°C	500mV	Active	RoHS3 Compliant
HIN232ACPZ	Renesas Electronics Corporation	230kbps	4.5V ~ 5.5V	0°C ~ 70°C	500mV	Active	RoHS3 Compliant
HIN232CPZ	Renesas Electronics Corporation	120Kbps	4.5V ~ 5.5V	0°C ~ 70°C	500mV	Active	RoHS3 Compliant
HIN232ECPZ	Renesas Electronics Corporation	230kbps	4.5V ~ 5.5V	0°C ~ 70°C	500mV	Active	RoHS3 Compliant

Engineering Selection Recommendations

For direct replacement of the SP3232EHCP-L, the ADM3202ANZ is the primary equivalent. This part maintains identical voltage supply range (3V ~ 5.5V), matches the 460Kbps data rate, and provides extended operating temperature coverage (-40°C ~ 85°C). The ADM3202ANZ carries active product status with RoHS3 compliance and REACH unaffected certification, ensuring long-term availability and regulatory alignment.

Alternative selections depend on application requirements:

Systems requiring 3V ~ 5.5V supply compatibility: ADM3202ANZ
Systems operating within 4.5V ~ 5.5V supply range with extended temperature requirements: ADM202EANZ, ADM232AANZ
Systems with lower data rate requirements (≤230Kbps): HIN202ECPZ, HIN232ACPZ, HIN232ECPZ from Renesas Electronics Corporation
Systems with temperature range matching original specification (0°C ~ 70°C): ADM202JNZ, HIN202ECPZ, HIN232ACPZ, HIN232CPZ, HIN232ECPZ

All substitute parts maintain 2/2 full-duplex RS232 configuration in 16-DIP through-hole packaging, ensuring mechanical and functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can ADM3202ANZ directly replace SP3232EHCP-L?

A: Yes. The ADM3202ANZ maintains the same 3V ~ 5.5V supply range, 460Kbps data rate, 2/2 full-duplex RS232 configuration, and 16-DIP through-hole package. It provides extended temperature coverage and active product status with RoHS3 compliance.

Q: Why do some substitutes have lower data rates?

A: Data rate specifications reflect the maximum communication speed each transceiver supports. Parts with lower data rates (120Kbps, 200kbps, 230kbps) are suitable for applications not requiring the full 460Kbps capability. System requirements determine whether reduced data rate parts are acceptable.

Q: What is the significance of voltage supply range differences?

A: The SP3232EHCP-L operates from 3V ~ 5.5V, supporting both 3.3V and 5V logic systems. Substitutes with 4.5V ~ 5.5V range are limited to 5V systems. For 3.3V system compatibility, ADM3202ANZ is required.

Q: Are all substitute parts RoHS3 compliant?

A: All listed substitute parts carry RoHS3 compliance and REACH unaffected certification. The original SP3232EHCP-L does not specify RoHS status due to its obsolete classification.

Q: Does receiver hysteresis affect substitution compatibility?

A: Receiver hysteresis (300mV to 650mV) affects noise immunity and signal detection margins. The SP3232EHCP-L specifies 300mV. Substitutes with higher hysteresis (400mV to 650mV) provide improved noise rejection. Application signal integrity requirements determine acceptability.

Q: Can I use parts with extended temperature ranges in place of the original?

A: Yes. Parts rated for -40°C ~ 85°C exceed the original 0°C ~ 70°C specification and are suitable for applications within the original temperature range. Extended ratings provide design margin for thermal stress conditions.

Q: Are all substitutes available in through-hole 16-DIP packaging?

A: Yes. All listed substitute parts are specified in 16-DIP (0.300", 7.62mm) through-hole packages, ensuring mechanical compatibility with existing PCB layouts.

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