MAX3232CDB Equivalent & Substitute Parts

Part Overview

The MAX3232CDB is a 2/2 full-duplex RS232 transceiver in 16-SSOP packaging manufactured by Texas Instruments. This interface IC operates across 3V to 5.5V supply voltage with a 250kbps data rate and 300mV receiver hysteresis. The part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Substitute parts maintain functional compatibility while offering improved product status, extended temperature ranges, or enhanced performance characteristics.

Key Parameters

Parameter	MAX3232CDB
Manufacturer	Texas Instruments
Protocol	RS232
Drivers/Receivers	2/2
Duplex	Full
Data Rate	250kbps
Voltage Supply	3V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Receiver Hysteresis	300mV
Mounting Type	Surface Mount
Package	16-SSOP (0.209", 5.30mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Compatibility Parameters:

RS232 protocol compliance
2/2 driver/receiver configuration
Full-duplex operation
3V to 5.5V supply voltage range
Surface mount technology
ROHS3 compliance

Package Compatibility: Substitutes are grouped into two categories based on package type:

16-SSOP (0.209", 5.30mm Width) — direct footprint replacement
16-TSSOP (0.173", 4.40mm Width) — alternative package with different PCB footprint

Performance Variations: Substitute parts may differ in data rate (250kbps vs. 460kbps), receiver hysteresis (300mV, 400mV, or 500mV), and operating temperature range (0°C ~ 70°C vs. -40°C ~ 85°C). These variations do not prevent substitution but indicate enhanced or alternative specifications.

Parameter Comparison

Part Number	Manufacturer	Package	Data Rate	Receiver Hysteresis	Operating Temp	Product Status	Packaging Type
MAX3232CDB	Texas Instruments	16-SSOP	250kbps	300mV	0°C ~ 70°C	Obsolete	—
MAX3232EEAE+	Analog Devices Inc./Maxim Integrated	16-SSOP	250kbps	500mV	-40°C ~ 85°C	Active	Tube
MAX3232EEAE+T	Analog Devices Inc./Maxim Integrated	16-SSOP	250kbps	500mV	-40°C ~ 85°C	Active	Cut Tape & Digi-Reel
SP3232EBEA-L/TR	MaxLinear, Inc.	16-SSOP	250kbps	300mV	-40°C ~ 85°C	Active	Tape & Reel
ADM3202ARUZ	Analog Devices Inc.	16-TSSOP	460Kbps	400mV	-40°C ~ 85°C	Active	Tube
ADM3202ARUZ-REEL	Analog Devices Inc.	16-TSSOP	460Kbps	400mV	-40°C ~ 85°C	Active	Cut Tape & Digi-Reel
ADM3202ARUZ-REEL7	Analog Devices Inc.	16-TSSOP	460Kbps	400mV	-40°C ~ 85°C	Active	Cut Tape & Digi-Reel
ADM3232EARUZ	Analog Devices Inc.	16-TSSOP	460Kbps	500mV	-40°C ~ 85°C	Active	Tube
ADM3232EARUZ-REEL7	Analog Devices Inc.	16-TSSOP	460Kbps	500mV	-40°C ~ 85°C	Active	Cut Tape & Digi-Reel
ICL3232CVZ	Renesas Electronics Corporation	16-TSSOP	250kbps	300mV	0°C ~ 70°C	Active	Tube
ICL3232CVZ-T	Renesas Electronics Corporation	16-TSSOP	250kbps	300mV	0°C ~ 70°C	Active	Cut Tape & Digi-Reel

Engineering Selection Recommendations

Direct Footprint Replacement (16-SSOP): MAX3232EEAE+ and MAX3232EEAE+T are active-status equivalents with identical 16-SSOP packaging. Both maintain 250kbps data rate and 3V to 5.5V supply compatibility. These parts offer extended operating temperature range (-40°C ~ 85°C) and higher receiver hysteresis (500mV). SP3232EBEA-L/TR provides 16-SSOP compatibility with matching 300mV hysteresis and extended temperature range, manufactured by MaxLinear.

Alternative Package (16-TSSOP): ADM3202ARUZ, ADM3202ARUZ-REEL, ADM3202ARUZ-REEL7, ADM3232EARUZ, and ADM3232EARUZ-REEL7 are active-status alternatives in 16-TSSOP packaging. These parts feature enhanced 460Kbps data rate and extended temperature range. PCB layout modification is required for 16-TSSOP footprint implementation. ICL3232CVZ and ICL3232CVZ-T maintain original 250kbps data rate and 0°C ~ 70°C temperature range in 16-TSSOP packaging.

Compliance & Availability: All substitute parts maintain ROHS3 compliance and EAR99 classification. Product status is active for all listed substitutes, ensuring long-term availability and supply chain stability compared to the obsolete MAX3232CDB.

Frequently Asked Questions (FAQ)

Q: Can MAX3232EEAE+ directly replace MAX3232CDB without PCB modification? A: Yes. Both parts use 16-SSOP packaging with identical pin configuration and footprint. No PCB layout changes are required.

Q: What is the difference between 16-SSOP and 16-TSSOP packages? A: 16-SSOP has 0.209" width (5.30mm), while 16-TSSOP has 0.173" width (4.40mm). These are different footprints requiring separate PCB designs. Verify your PCB layout before selecting a substitute.

Q: Why do some substitutes have 460Kbps data rate instead of 250kbps? A: ADM3202 and ADM3232 series offer higher data rate capability. This is a performance enhancement and does not prevent substitution. Designs operating at 250kbps or lower will function correctly with these parts.

Q: Does higher receiver hysteresis (500mV vs. 300mV) affect compatibility? A: Receiver hysteresis affects noise immunity. Higher hysteresis provides greater noise margin. Substitutes with 500mV or 400mV hysteresis are compatible with designs specified for 300mV.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the original MAX3232CDB specification.

Q: What is the significance of packaging variants (Tube, Cut Tape, Digi-Reel)? A: Packaging type affects order quantity and handling. Tube packaging is typically for smaller quantities, while Cut Tape and Digi-Reel are for higher-volume production. Electrical specifications remain identical across packaging variants of the same part number.

Q: Can I use ICL3232CVZ-T as a substitute if my design requires 0°C ~ 70°C operation? A: Yes. ICL3232CVZ-T operates within 0°C ~ 70°C range, matching the original MAX3232CDB specification. However, it uses 16-TSSOP packaging, requiring PCB footprint verification.

Q: Which substitute offers the best extended temperature performance? A: All ADM3202 and ADM3232 variants, along with SP3232EBEA-L/TR, operate across -40°C ~ 85°C, providing the widest temperature range compared to the original 0°C ~ 70°C specification.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message