SP232EEP-L RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The SP232EEP-L is a 2/2 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed in a 16-pin DIP package for through-hole mounting. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support, maintenance, and new design implementations where RS232 communication is required.

The SP232EEP-L operates within a 4.5V to 5.5V supply voltage range, supports data rates up to 240 kbps, and maintains a receiver hysteresis of 500 mV across an operating temperature range of -40°C to 85°C. Its through-hole DIP packaging and electrical specifications make it suitable for legacy systems and applications requiring robust serial communication interfaces.

Key Parameters

Parameter	SP232EEP-L Value
Manufacturer	MaxLinear, Inc.
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	240 kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Through Hole
Package / Case	16-DIP (0.300", 7.62mm)
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the SP232EEP-L is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Protocol: RS232
Number of Drivers/Receivers: 2/2
Duplex: Full
Voltage Supply Range: 4.5V ~ 5.5V (minimum requirement)
Operating Temperature Range: -40°C ~ 85°C (minimum requirement)
Mounting Type: Through Hole
Package: 16-DIP (0.300", 7.62mm)

Secondary Compatibility Parameters:

Receiver Hysteresis: 400 mV to 650 mV (acceptable variance)
Data Rate: 120 kbps minimum (acceptable for RS232 applications)
Moisture Sensitivity Level: 1 (Unlimited) preferred; MSL 2 acceptable with proper handling

Substitute parts are grouped into two categories:

Category 1 - Direct Package Match (16-DIP Through Hole): Parts maintaining identical mounting type and package footprint, enabling direct pin-for-pin replacement without PCB modification.

Category 2 - Package Variant (16-SOIC Surface Mount): The SP232EEN-L/TR offers surface-mount alternative with identical electrical specifications, suitable for designs transitioning to SMT assembly.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Data Rate	Receiver Hysteresis	Supply Voltage	Operating Temp	Package	Mounting Type	Product Status
SP232EEP-L	MaxLinear, Inc.	RS232	2/2	240 kbps	500 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Through Hole	Obsolete
SP232EEN-L/TR	MaxLinear, Inc.	RS232	2/2	240 kbps	500 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOIC	Surface Mount	Active
ADM202EANZ	Analog Devices Inc.	RS232	2/2	230 kbps	650 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Through Hole	Active
ADM202JNZ	Analog Devices Inc.	RS232	2/2	Not Specified	400 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Through Hole	Active
ADM232AANZ	Analog Devices Inc.	RS232	2/2	200 kbps	400 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Through Hole	Active
ADM232LANZ	Analog Devices Inc.	RS232	2/2	120 kbps	650 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Through Hole	Active
ADM232LJNZ	Analog Devices Inc.	RS232	2/2	120 kbps	650 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Through Hole	Active
ADM3202ANZ	Analog Devices Inc.	RS232	2/2	460 kbps	400 mV	3V ~ 5.5V	-40°C ~ 85°C	16-DIP	Through Hole	Active
HIN232ACPZ	Renesas Electronics Corporation	RS232	2/2	230 kbps	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Through Hole	Active
HIN232CPZ	Renesas Electronics Corporation	RS232	2/2	120 kbps	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Through Hole	Active
HIN232ECPZ	Renesas Electronics Corporation	RS232	2/2	230 kbps	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Through Hole	Active

Engineering Selection Recommendations

For Direct Through-Hole Replacement (16-DIP Package):

The ADM202EANZ and ADM232AANZ from Analog Devices Inc. provide the closest electrical equivalence to the SP232EEP-L. Both maintain the full -40°C to 85°C operating temperature range, 4.5V to 5.5V supply voltage specification, and 16-DIP through-hole package. ADM202EANZ operates at 230 kbps with 650 mV receiver hysteresis, while ADM232AANZ operates at 200 kbps with 400 mV receiver hysteresis. Both are ROHS3 compliant and carry active product status.

The HIN232ACPZ and HIN232ECPZ from Renesas Electronics Corporation offer 230 kbps data rate performance with 500 mV receiver hysteresis matching the original specification. However, these parts are rated for 0°C to 70°C operating temperature, making them suitable only for applications not requiring the full -40°C to 85°C range.

The ADM3202ANZ from Analog Devices Inc. supports the widest data rate capability at 460 kbps and accepts supply voltages as low as 3V, providing enhanced performance margin. This part is recommended for applications requiring higher data throughput or lower supply voltage operation.

For Surface-Mount Transition (16-SOIC Package):

The SP232EEN-L/TR from MaxLinear, Inc. maintains identical electrical specifications to the SP232EEP-L while offering surface-mount assembly compatibility. This part is recommended for new designs or PCB revisions transitioning to SMT manufacturing processes.

Compliance Considerations:

All recommended substitute parts carry ROHS3 compliance and REACH unaffected status, meeting modern environmental and regulatory requirements. Moisture sensitivity levels are uniformly MSL 1 (Unlimited) across all recommended parts, eliminating moisture-related handling constraints.

Frequently Asked Questions (FAQ)

Q: Can the SP232EEN-L/TR (16-SOIC) be used as a direct replacement for the SP232EEP-L (16-DIP)?

A: No. The SP232EEN-L/TR uses surface-mount packaging while the SP232EEP-L uses through-hole DIP packaging. Direct PCB substitution is not possible without redesign. However, both parts are electrically identical and suitable for equivalent functionality in different assembly technologies.

Q: What is the minimum data rate requirement for RS232 transceiver substitution?

A: The SP232EEP-L operates at 240 kbps. Substitute parts with lower data rates (120 kbps, 200 kbps, 230 kbps) remain compatible with RS232 protocol requirements, as RS232 does not mandate specific data rate performance. Selection depends on application bandwidth requirements.

Q: Are the ADM232LJNZ and HIN232CPZ suitable replacements for the full -40°C to 85°C temperature range?

A: No. Both parts are rated for 0°C to 70°C operating temperature. They are not suitable for applications requiring the full -40°C to 85°C range specified for the SP232EEP-L. Use ADM202EANZ, ADM232AANZ, or ADM3202ANZ for full temperature range compatibility.

Q: What is the significance of receiver hysteresis variation (400 mV to 650 mV)?

A: Receiver hysteresis affects noise immunity and signal transition characteristics. The SP232EEP-L specifies 500 mV. Substitute parts with 400 mV hysteresis provide tighter noise margins, while 650 mV hysteresis provides enhanced noise immunity. Selection depends on signal integrity requirements in the target application environment.

Q: Does the ADM3202ANZ require different power supply design compared to the SP232EEP-L?

A: The ADM3202ANZ accepts supply voltages from 3V to 5.5V, compared to the SP232EEP-L specification of 4.5V to 5.5V. Existing 4.5V to 5.5V power supplies are compatible. The wider input range provides design flexibility for lower-voltage applications but does not require modification of existing 5V systems.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All recommended substitute parts carry ROHS3 compliance certification and REACH unaffected status, meeting current environmental and regulatory standards.

Q: What packaging considerations apply when selecting between Analog Devices and Renesas alternatives?

A: All recommended through-hole alternatives use identical 16-DIP (0.300", 7.62mm) packaging with the same pin configuration. PCB footprints are interchangeable. Selection between manufacturers depends on data rate, temperature range, and hysteresis requirements specific to the application.

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