MAX3320TCAP+ Equivalent & Substitute Parts

Part Overview

The MAX3320TCAP+ is a full-duplex RS232 transceiver interface IC manufactured by Analog Devices Inc./Maxim Integrated. This surface-mount component features 2 drivers and 2 receivers in a 20-SSOP package, designed for serial communication applications requiring RS232 protocol compliance. The part maintains active product status with 1115 units in current inventory.

Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and functional equivalence within the RS232 transceiver category. Substitutes enable design flexibility, inventory optimization, and continuity of supply across manufacturing lifecycles.

Substiute Parts

MAX3320TCAP+

Analog Devices Inc./Maxim IntegratedIn Stock: 1203MAX3320TCAP+ 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 MAX3320TCAP+ is determined by strict equivalence across the following parameters:

• RS232 protocol implementation
• 2 driver / 2 receiver configuration
• Full-duplex operation capability
• 250 kbps data rate support
• 300 mV receiver hysteresis
• 3V to 5.5V supply voltage compatibility
• 0°C to 70°C operating temperature range
• 20-SSOP surface-mount package with identical physical dimensions
• ROHS3 compliance and MSL Level 1 rating

Parts meeting all these criteria are classified as parametric equivalents and may be substituted in applications where the MAX3320TCAP+ is specified.

Parameter Comparison

Engineering Selection Recommendations

MAX3320ACAP+ is the primary parametric equivalent to MAX3320TCAP+. Both parts are manufactured by Analog Devices Inc./Maxim Integrated, maintain active product status, and share identical electrical and mechanical specifications. Selection between these two active parts may be based on inventory availability and procurement lead times.

MAX3222CDB is a cross-manufacturer substitute manufactured by Texas Instruments. While it meets all electrical and mechanical equivalence criteria, this part carries obsolete product status. Use of MAX3222CDB is appropriate only when existing inventory must be consumed or when long-term supply continuity is not a design requirement. For new designs and production runs requiring sustained component availability, MAX3320ACAP+ or MAX3320TCAP+ are preferred selections.

All three parts maintain ROHS3 compliance, MSL Level 1 rating, and identical package specifications, ensuring mechanical and environmental compatibility in surface-mount applications.

Frequently Asked Questions (FAQ)

Q: Can MAX3320ACAP+ be used as a direct replacement for MAX3320TCAP+?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, operating ranges, and 20-SSOP package dimensions. No circuit modifications are required for substitution.

Q: Why is MAX3222CDB listed as a substitute if it is obsolete?

A: MAX3222CDB meets all functional and mechanical equivalence criteria. Its obsolete status indicates that Texas Instruments has discontinued active production and support. It remains a valid substitute for applications where existing inventory is available, but should not be selected for new designs requiring long-term component availability.

Q: Are there any differences in pin configuration between these parts?

A: All three parts use the 20-SSOP package with identical pinout and physical dimensions (0.209", 5.30mm width). No PCB layout modifications are necessary when substituting between these parts.

Q: What is the significance of the 300 mV receiver hysteresis specification?

A: Receiver hysteresis defines the voltage differential between the rising and falling threshold levels of the input comparator. The 300 mV specification ensures noise immunity and stable signal detection in RS232 communication. All substitute parts maintain this specification.

Q: Can these parts operate at supply voltages outside the 3V to 5.5V range?

A: No. All substitute parts are specified for operation within the 3V to 5.5V supply voltage range. Operation outside this range may result in functional degradation or component failure.

Q: What is MSL Level 1, and why does it matter?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture control requirements. These parts do not require special dry-pack storage or baking procedures prior to assembly, simplifying inventory management and reducing handling costs.