MAX3232ECPE RS232 Transceiver Interface IC - Equivalent & Substitute Parts

Part Overview

The MAX3232ECPE is a full-duplex RS232 transceiver interface IC manufactured by Analog Devices Inc./Maxim Integrated, configured as a 2/2 transceiver in a 16-DIP package. This component is classified as obsolete, with 5,300 units currently in stock. The part operates across a 3V to 5.5V supply range and supports data rates up to 1 Mbps with a receiver hysteresis of 500 mV. Due to its obsolete product status and non-RoHS compliance, identifying active equivalent and substitute parts is necessary for new designs and ongoing system support.

Key Parameters

Parameter	MAX3232ECPE
Manufacturer	Analog Devices Inc./Maxim Integrated
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	1 Mbps
Voltage - Supply	3V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Through Hole
Package / Case	16-DIP (0.300", 7.62mm)
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the MAX3232ECPE is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Protocol: RS232
Number of Drivers/Receivers: 2/2
Duplex: Full
Package / Case: 16-DIP (0.300", 7.62mm)
Mounting Type: Through Hole
Voltage - Supply Range: Must encompass or be compatible with 3V ~ 5.5V

Secondary Compatibility Parameters:

Receiver Hysteresis: 500 mV (preferred) or 400 mV (acceptable with design verification)
Data Rate: 1 Mbps (preferred) or lower rates (acceptable for legacy applications)
Operating Temperature: 0°C ~ 70°C (preferred) or extended range (acceptable for specific applications)

Substitute parts are grouped into three categories based on their relationship to the main part:

Parametric Equivalent: Identical electrical specifications with different packaging or product status.

Upgrade: Enhanced specifications (higher data rate, extended temperature range, improved hysteresis) while maintaining core functionality.

Manufacturer Recommended: Active alternatives from Analog Devices or compatible manufacturers meeting substitution criteria.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Receiver Hysteresis	Data Rate	Voltage Supply	Operating Temp	Package	Product Status	RoHS Status
MAX3232ECPE	Analog Devices/Maxim	RS232	2/2	500 mV	1 Mbps	3V ~ 5.5V	0°C ~ 70°C	16-DIP	Obsolete	Non-compliant
MAX3232ECPE+	Analog Devices/Maxim	RS232	2/2	500 mV	1 Mbps	3V ~ 5.5V	0°C ~ 70°C	16-DIP	Active	ROHS3 Compliant
LTC1383IN#PBF	Analog Devices	RS232	2/2	400 mV	120 KBd	4.5V ~ 5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
ADM202JNZ	Analog Devices	RS232	2/2	400 mV	Not specified	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Active	ROHS3 Compliant
ADM232AANZ	Analog Devices	RS232	2/2	400 mV	200 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
ADM232LANZ	Analog Devices	RS232	2/2	650 mV	120 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
ADM232LJNZ	Analog Devices	RS232	2/2	650 mV	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Active	ROHS3 Compliant
ADM3202ANZ	Analog Devices	RS232	2/2	400 mV	460 Kbps	3V ~ 5.5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
HIN232ACPZ	Renesas Electronics	RS232	2/2	500 mV	230 kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Active	ROHS3 Compliant
HIN232CPZ	Renesas Electronics	RS232	2/2	500 mV	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Active	ROHS3 Compliant
HIN232ECPZ	Renesas Electronics	RS232	2/2	500 mV	230 kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Parametric Equivalent): MAX3232ECPE+ is the direct active equivalent with identical electrical specifications and RoHS3 compliance. This part maintains the 500 mV receiver hysteresis, 1 Mbps data rate, and 3V to 5.5V supply range of the original MAX3232ECPE while offering active product status and improved compliance posture.

Supply Voltage Compatibility: Parts specifying 4.5V to 5.5V supply range (LTC1383IN#PBF, ADM202JNZ, ADM232 series, HIN232 series) are suitable for applications where the minimum supply voltage does not fall below 4.5V. The ADM3202ANZ and MAX3232ECPE+ maintain the full 3V to 5.5V range, providing broader compatibility with low-voltage applications.

Temperature Range Considerations: The original MAX3232ECPE operates from 0°C to 70°C. Substitutes offering extended temperature ranges (-40°C to 85°C) such as LTC1383IN#PBF, ADM232AANZ, ADM232LANZ, and ADM3202ANZ are suitable for applications requiring wider operating conditions. Parts maintaining the 0°C to 70°C range (ADM202JNZ, ADM232LJNZ, HIN232ACPZ, HIN232CPZ, HIN232ECPZ) match the original thermal specification.

Data Rate Alignment: The MAX3232ECPE supports 1 Mbps. The ADM3202ANZ (460 Kbps) and HIN232 series (120-230 Kbps) offer lower data rates suitable for legacy or bandwidth-limited applications. All substitutes maintain RS232 protocol compliance.

Receiver Hysteresis: The original 500 mV hysteresis is matched by MAX3232ECPE+, HIN232ACPZ, HIN232CPZ, and HIN232ECPZ. Parts with 400 mV hysteresis (LTC1383IN#PBF, ADM202JNZ, ADM232AANZ, ADM3202ANZ) provide tighter input thresholds. The ADM232LANZ and ADM232LJNZ offer 650 mV hysteresis for noise-tolerant applications.

Compliance and Availability: All substitute parts listed are ROHS3 compliant and carry active product status, ensuring long-term availability and regulatory compliance for new designs. The original MAX3232ECPE, being obsolete and non-RoHS compliant, should be replaced in new applications.

Frequently Asked Questions (FAQ)

Q: Can MAX3232ECPE+ be used as a direct drop-in replacement for MAX3232ECPE?

A: Yes. MAX3232ECPE+ is a parametric equivalent with identical electrical specifications: 2/2 RS232 transceiver, 500 mV receiver hysteresis, 1 Mbps data rate, 3V to 5.5V supply, and 16-DIP package. The primary difference is active product status and RoHS3 compliance.

Q: What is the minimum supply voltage requirement for HIN232 and ADM232 series substitutes?

A: HIN232ACPZ, HIN232CPZ, HIN232ECPZ, ADM202JNZ, ADM232AANZ, ADM232LANZ, and ADM232LJNZ all require a minimum supply voltage of 4.5V. Applications requiring operation below 4.5V must use MAX3232ECPE+, ADM3202ANZ, or the original MAX3232ECPE.

Q: Are all listed substitutes compatible with the 16-DIP package footprint?

A: Yes. All substitute parts are specified in 16-DIP (0.300", 7.62mm) through-hole packages, ensuring mechanical and electrical compatibility with existing PCB layouts designed for the MAX3232ECPE.

Q: Which substitute offers the highest data rate?

A: ADM3202ANZ supports 460 Kbps, the highest among the listed substitutes. However, MAX3232ECPE and MAX3232ECPE+ both support 1 Mbps, exceeding all other alternatives.

Q: Can I use a substitute with a different receiver hysteresis value?

A: Receiver hysteresis affects input threshold sensitivity. The original 500 mV specification is matched by MAX3232ECPE+, HIN232ACPZ, HIN232CPZ, and HIN232ECPZ. Substitutes with 400 mV (tighter thresholds) or 650 mV (looser thresholds) may be used if the application tolerates the resulting input sensitivity changes.

Q: Which substitute is recommended for extended temperature applications?

A: LTC1383IN#PBF, ADM232AANZ, ADM232LANZ, and ADM3202ANZ all support -40°C to 85°C operating range, compared to the original 0°C to 70°C specification. These parts are suitable for industrial and automotive environments requiring wider thermal operation.

Q: Is the MAX3232ECPE still available for new designs?

A: No. The MAX3232ECPE is classified as obsolete and non-RoHS compliant. New designs should specify MAX3232ECPE+ or alternative active parts from the substitute list to ensure long-term supply and regulatory compliance.

Q: What is the inventory status of substitute parts?

A: MAX3232ECPE+ has 14,862 units in stock. HIN232ECPZ has 10,100 units, HIN232CPZ has 9,431 units, and ADM3202ANZ has 5,400 units. All listed substitutes maintain active inventory status.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message