MAX202CPW RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The MAX202CPW is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 16-TSSOP surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. The MAX202CPW operates within a 4.5V to 5.5V supply range with a 120 kbps data rate and 500 mV receiver hysteresis, designed for industrial and commercial RS232 communication applications.

Key Parameters

Parameter	Value
Part Number	MAX202CPW
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Drivers/Receivers	2/2
Duplex	Full
Package	16-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Voltage Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Data Rate	120 kbps
Receiver Hysteresis	500 mV
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the MAX202CPW is determined by strict electrical and mechanical compatibility across the following parameters:

Critical Matching Parameters:

Protocol: RS232
Drivers/Receivers: 2/2 configuration
Duplex: Full
Package: 16-TSSOP form factor
Mounting Type: Surface Mount
Voltage Supply Range: Must encompass or match 4.5V ~ 5.5V
RoHS Compliance: ROHS3 Compliant

Allowable Variations:

Operating Temperature Range: Substitutes may extend beyond 0°C ~ 70°C
Data Rate: Substitutes may exceed 120 kbps
Receiver Hysteresis: Substitutes may differ within functional tolerance
Product Status: Active parts are preferred over obsolete

Substitutes are grouped by manufacturer and packaging configuration. Direct equivalents maintain identical electrical specifications. Upgrades provide extended temperature ranges or enhanced performance while maintaining full backward compatibility.

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage Supply	Operating Temp	Data Rate	Receiver Hysteresis	Package	Packaging Type
MAX202CPW	Texas Instruments	Obsolete	4.5V ~ 5.5V	0°C ~ 70°C	120 kbps	500 mV	16-TSSOP	Tube
MAX202IPWR	Texas Instruments	Active	4.5V ~ 5.5V	-40°C ~ 85°C	120 kbps	500 mV	16-TSSOP	Cut Tape & Digi-Reel
MAX202ECUE+T	Analog Devices Inc./Maxim Integrated	Active	4.5V ~ 5.5V	0°C ~ 70°C	120 kbps	500 mV	16-TSSOP	Tape & Reel
MAX202EEUE+	Analog Devices Inc./Maxim Integrated	Active	4.5V ~ 5.5V	-40°C ~ 85°C	120 kbps	500 mV	16-TSSOP	Tube
MAX202EEUE+T	Analog Devices Inc./Maxim Integrated	Active	4.5V ~ 5.5V	-40°C ~ 85°C	120 kbps	500 mV	16-TSSOP	Tape & Reel
ADM202EARUZ	Analog Devices Inc.	Active	4.5V ~ 5.5V	-40°C ~ 85°C	230 kbps	650 mV	16-TSSOP	Tube
ADM202EARUZ-REEL	Analog Devices Inc.	Active	4.5V ~ 5.5V	-40°C ~ 85°C	230 kbps	650 mV	16-TSSOP	Tape & Reel
ADM202EARUZ-REEL7	Analog Devices Inc.	Active	4.5V ~ 5.5V	-40°C ~ 85°C	230 kbps	650 mV	16-TSSOP	Cut Tape & Digi-Reel
SP3232EBCY-L/TR	MaxLinear, Inc.	Active	3V ~ 5.5V	0°C ~ 70°C	250 kbps	300 mV	16-TSSOP	Cut Tape & Digi-Reel
SP3232EBEY-L/TR	MaxLinear, Inc.	Active	3V ~ 5.5V	-40°C ~ 85°C	250 kbps	300 mV	16-TSSOP	Cut Tape & Digi-Reel
SP3232ECY-L	MaxLinear, Inc.	Active	3V ~ 5.5V	0°C ~ 70°C	235 kbps	300 mV	16-TSSOP	Tube

Engineering Selection Recommendations

Primary Recommendation: MAX202EEUE+ or MAX202EEUE+T

These Analog Devices Inc./Maxim Integrated parts are direct functional equivalents to the MAX202CPW with identical electrical specifications (120 kbps, 500 mV hysteresis, 4.5V ~ 5.5V supply). Both parts are ROHS3 compliant and active in production. The MAX202EEUE+ is packaged in tube format matching the original part's packaging, while MAX202EEUE+T provides tape and reel packaging. The extended operating temperature range (-40°C ~ 85°C) provides superior reliability for industrial applications.

Secondary Recommendation: MAX202IPWR

The MAX202IPWR from Texas Instruments maintains the original manufacturer lineage with identical electrical specifications and extended temperature range. Available in cut tape and Digi-Reel packaging, this part is suitable for high-volume production environments.

Alternative Recommendation: ADM202EARUZ Series

The ADM202EARUZ, ADM202EARUZ-REEL, and ADM202EARUZ-REEL7 from Analog Devices Inc. provide enhanced performance with 230 kbps data rate and extended temperature range (-40°C ~ 85°C). These parts are suitable for applications requiring higher data throughput while maintaining full RS232 2/2 transceiver functionality. Available in multiple packaging formats.

Performance-Enhanced Alternative: SP3232 Series

The SP3232EBEY-L/TR, SP3232EBCY-L/TR, and SP3232ECY-L from MaxLinear, Inc. offer superior specifications including 250 kbps data rate, lower receiver hysteresis (300 mV), and extended supply voltage range (3V ~ 5.5V). These parts are suitable for applications requiring enhanced noise immunity and lower power supply requirements. The SP3232EBEY-L/TR provides the widest operating temperature range (-40°C ~ 85°C).

All recommended substitutes maintain ROHS3 compliance and are currently in active production status.

Frequently Asked Questions (FAQ)

Q: Can MAX202EEUE+ directly replace MAX202CPW without circuit modifications?

A: Yes. The MAX202EEUE+ is electrically and mechanically compatible with identical 2/2 RS232 transceiver configuration, 16-TSSOP package, and 4.5V ~ 5.5V supply voltage. The extended operating temperature range (-40°C ~ 85°C) provides additional margin without requiring design changes.

Q: What is the difference between tube and tape & reel packaging?

A: Tube packaging (MAX202EEUE+) is suitable for lower-volume applications and manual assembly. Tape & reel packaging (MAX202EEUE+T) is optimized for automated pick-and-place assembly in high-volume production. Electrical specifications are identical; packaging selection depends on manufacturing process requirements.

Q: Are ADM202EARUZ parts compatible with MAX202CPW applications?

A: ADM202EARUZ parts are functionally compatible as 2/2 RS232 transceivers in 16-TSSOP packages with matching 4.5V ~ 5.5V supply voltage. However, the higher data rate (230 kbps vs. 120 kbps) and different receiver hysteresis (650 mV vs. 500 mV) may affect signal integrity in legacy systems. Verification is recommended for noise-sensitive applications.

Q: Why do SP3232 parts have a lower supply voltage minimum of 3V?

A: SP3232 transceivers are designed with enhanced low-voltage operation capability. The 3V ~ 5.5V supply range provides compatibility with both 3.3V and 5V logic systems. Applications using 4.5V ~ 5.5V supplies are fully compatible with no modifications required.

Q: What is receiver hysteresis and why does it vary between substitutes?

A: Receiver hysteresis defines the voltage difference between rising and falling threshold levels, affecting noise immunity. The MAX202CPW specifies 500 mV hysteresis, while ADM202EARUZ provides 650 mV and SP3232 parts provide 300 mV. Higher hysteresis improves noise rejection; lower hysteresis reduces power consumption. Selection depends on application noise environment.

Q: Can I use SP3232EBEY-L/TR in place of MAX202CPW for extended temperature operation?

A: Yes. The SP3232EBEY-L/TR provides -40°C ~ 85°C operating range, 250 kbps data rate, and 16-TSSOP package compatibility. The lower receiver hysteresis (300 mV) and extended supply voltage range (3V ~ 5.5V) are compatible with MAX202CPW applications. This part is suitable for industrial environments requiring wider temperature operation.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended substitutes are ROHS3 compliant. SP3232ECY-L is RoHS compliant without specific ROHS3 designation. Compliance documentation should be verified with the supplier for specific procurement requirements.

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