MAX3185CAP Equivalent & Substitute Parts

Part Overview

The MAX3185CAP is a full-duplex RS232 transceiver with 3 drivers and 5 receivers, manufactured by Analog Devices Inc./Maxim Integrated. This interface IC operates across a 4.5V to 5.5V supply range and supports data rates up to 230kbps. The device is currently classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs requiring this transceiver topology.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX3185CAP
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Interface
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	3/5
Duplex	Full
Data Rate	230kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package / Case	20-SSOP (0.209", 5.30mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the MAX3185CAP is determined by strict equivalence across the following critical parameters:

Protocol specification: RS232
Driver/Receiver configuration: 3 drivers and 5 receivers
Duplex mode: Full-duplex operation
Data rate capability: 230kbps minimum
Supply voltage range: 4.5V to 5.5V
Package type: 20-SSOP form factor
Receiver hysteresis: 650 mV
Mounting technology: Surface mount

The MAX3185CAP+ meets all these criteria and is identified as a parametric equivalent. The primary distinction between these parts is product status and compliance certification, not functional or electrical characteristics.

Parameter Comparison

Parameter	MAX3185CAP	MAX3185CAP+
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Protocol	RS232	RS232
Number of Drivers/Receivers	3/5	3/5
Duplex	Full	Full
Receiver Hysteresis	650 mV	650 mV
Data Rate	230kbps	230kbps
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C
Package / Case	20-SSOP (0.209", 5.30mm Width)	20-SSOP (0.209", 5.30mm Width)
Mounting Type	Surface Mount	Surface Mount
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

The MAX3185CAP+ is the direct substitute for the MAX3185CAP. Both parts share identical electrical specifications, pin configuration, and package geometry. The MAX3185CAP+ is currently in active production status, whereas the MAX3185CAP is obsolete.

For new designs and ongoing production requiring RS232 transceiver functionality with 3/5 driver/receiver configuration, the MAX3185CAP+ is the appropriate selection. This part maintains full compatibility with existing MAX3185CAP designs while offering the advantage of active product status and ROHS3 compliance certification.

Frequently Asked Questions (FAQ)

Q: Can MAX3185CAP+ directly replace MAX3185CAP in existing designs?

A: Yes. The MAX3185CAP+ is electrically and mechanically identical to the MAX3185CAP. Pin configuration, package footprint, and all electrical parameters are equivalent. No design modifications are required.

Q: What is the primary difference between MAX3185CAP and MAX3185CAP+?

A: The MAX3185CAP is obsolete, while MAX3185CAP+ is in active production. Additionally, MAX3185CAP+ meets ROHS3 compliance standards, whereas MAX3185CAP is non-compliant.

Q: Are there any package or mounting differences?

A: No. Both parts use the 20-SSOP surface mount package with identical dimensions (0.209" width, 5.30mm).

Q: What supply voltage range does this transceiver support?

A: Both the MAX3185CAP and MAX3185CAP+ operate across a 4.5V to 5.5V supply voltage range.

Q: What is the maximum data rate for this RS232 transceiver?

A: The maximum data rate is 230kbps for both the MAX3185CAP and MAX3185CAP+.

Q: Is the MAX3185CAP+ suitable for new product designs?

A: Yes. The MAX3185CAP+ is in active production status and is the recommended choice for new designs requiring this transceiver configuration.

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