MAX3320ACAP RS232 Transceiver - Equivalent & Substitute Parts

Part Overview

The MAX3320ACAP is a full-duplex RS232 transceiver IC manufactured by Analog Devices Inc./Maxim Integrated, designed for serial communication applications requiring 2 drivers and 2 receivers in a compact 20-SSOP surface mount package. The device operates across a 3V to 5.5V supply range with a maximum data rate of 250kbps and is currently classified as obsolete. Due to its obsolete status, identifying parametrically equivalent active alternatives is essential for new designs and ongoing production requirements.

Substiute Parts

MAX3320ACAP

Analog Devices Inc./Maxim IntegratedIn Stock: 2293MAX3320ACAP Datasheet

Current PartRFQ

MAX3320ACAP+

Analog Devices Inc./Maxim IntegratedIn Stock: 1312MAX3320ACAP+ Datasheet

Parametric EquivalentRFQ

MAX3320TCAP+

Analog Devices Inc./Maxim IntegratedIn Stock: 1203MAX3320TCAP+ Datasheet

Parametric EquivalentRFQ

MAX3222CDB

Texas InstrumentsIn Stock: 3683MAX3222CDB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX3320ACAP is determined by strict parametric matching across the following criteria:

Core Electrical Parameters:

• Protocol: RS232
• Number of Drivers/Receivers: 2/2
• Duplex: Full
• Data Rate: 250kbps
• Voltage - Supply: 3V ~ 5.5V
• Receiver Hysteresis: 300 mV

Physical Parameters:

• Package / Case: 20-SSOP (0.209", 5.30mm Width)
• Mounting Type: Surface Mount

Compliance Parameters:

• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• ECCN: EAR99
• HTSUS: 8542.39.0001

All identified substitute parts match these parameters exactly. Variations in product status (Active vs. Obsolete) and RoHS compliance do not affect electrical or mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

For Active Product Designs: MAX3320ACAP+ and MAX3320TCAP+ are the preferred substitutes. Both are manufactured by Analog Devices Inc./Maxim Integrated with Active product status and ROHS3 compliance. These parts maintain identical electrical and mechanical specifications to the original MAX3320ACAP while offering improved compliance posture for new designs.

For Legacy System Maintenance: MAX3222CDB from Texas Instruments provides parametric equivalence and is suitable for direct replacement in existing applications. Although classified as Obsolete, it maintains full electrical and mechanical compatibility. ROHS3 compliance is available with this alternative.

Compliance Considerations: The original MAX3320ACAP is RoHS non-compliant. All substitute parts listed are ROHS3 compliant, making them suitable for applications requiring RoHS compliance. Selection between substitutes should be based on product status requirements and supply chain availability rather than electrical performance, as all parts are parametrically identical.

Frequently Asked Questions (FAQ)

Q: Can MAX3320ACAP+ be used as a direct replacement for MAX3320ACAP? A: Yes. MAX3320ACAP+ is parametrically equivalent across all electrical and mechanical specifications. The primary difference is product status (Active vs. Obsolete) and packaging format (Tube vs. Bulk). Pin configuration and functional performance are identical.

Q: What is the difference between MAX3320ACAP+ and MAX3320TCAP+? A: Both parts are parametrically identical in electrical performance and package type. The difference lies in the temperature grade designation within the part number suffix. Both are Active products with ROHS3 compliance and identical supply voltage, data rate, and transceiver configuration.

Q: Is MAX3222CDB from Texas Instruments compatible with MAX3320ACAP? A: Yes. MAX3222CDB meets all parametric requirements for substitution, including RS232 protocol, 2/2 driver/receiver configuration, 250kbps data rate, 3V to 5.5V supply range, and 20-SSOP package. The manufacturer difference does not affect electrical or mechanical interchangeability.

Q: Does the packaging format (Tube vs. Bulk) affect circuit performance? A: No. Packaging format affects only handling, storage, and supply chain logistics. Electrical and mechanical performance of the IC itself is unaffected by whether it is supplied in Tube or Bulk packaging.

Q: Are there RoHS compliance implications when substituting the original MAX3320ACAP? A: The original MAX3320ACAP is RoHS non-compliant. All substitute parts listed are ROHS3 compliant. For applications requiring RoHS compliance, any of the listed substitutes are suitable. For legacy systems with no RoHS requirement, the original part remains functionally equivalent.

Q: Can these parts be used interchangeably on the same PCB? A: Yes. All listed parts share identical 20-SSOP package dimensions (0.209", 5.30mm Width) and pin configuration. PCB layout and footprint design require no modification when substituting between these parts.