TRS232ECPW Equivalent & Substitute Parts

Part Overview

The TRS232ECPW is a 2/2 full-duplex RS232 transceiver in 16-TSSOP surface mount packaging manufactured by Texas Instruments. This interface IC operates at 4.5V to 5.5V supply voltage with a 250kbps data rate and 500mV receiver hysteresis, designed for serial communication applications requiring RS232 protocol compliance.

The TRS232ECPW is classified as obsolete. Substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support long-term product lifecycle management. Equivalent alternatives maintain core RS232 transceiver functionality while offering improved availability and extended operating temperature ranges in active product lines.

Key Parameters

Parameter	TRS232ECPW Value
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	250kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	16-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the TRS232ECPW is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Protocol: RS232
Number of Drivers/Receivers: 2/2
Duplex: Full
Mounting Type: Surface Mount
Package / Case: 16-TSSOP (0.173", 4.40mm Width)

Electrical Compatibility Parameters:

Voltage - Supply: 4.5V ~ 5.5V (minimum requirement; higher ranges acceptable)
Data Rate: 250kbps (minimum requirement; higher rates acceptable)
Receiver Hysteresis: 500mV (maximum acceptable; lower values acceptable)

Operational Compatibility Parameters:

Operating Temperature: 0°C ~ 70°C (minimum requirement; extended ranges acceptable)

Substitute parts are grouped into two categories:

Category 1 - Direct Parametric Equivalents: Parts matching all mandatory parameters and meeting or exceeding electrical specifications. These include MAX232ECPW, MAX232EIPWR, MAX232ACUE+, and MAX232ACUE+T.

Category 2 - Enhanced Specification Equivalents: Parts with improved electrical performance (lower hysteresis, wider supply voltage range, higher data rates) or extended operating temperature ranges. These include MAX3232CUE+, MAX3232CUE+T, MAX3232EUE+, MAX3232EUE+T, and SP3232EBCY-L/TR.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Data Rate	Voltage Supply	Receiver Hysteresis	Operating Temp	Package	Product Status
TRS232ECPW	Texas Instruments	RS232	2/2	250kbps	4.5V ~ 5.5V	500mV	0°C ~ 70°C	16-TSSOP	Obsolete
MAX232ECPW	Texas Instruments	RS232	2/2	250kbps	4.5V ~ 5.5V	500mV	0°C ~ 70°C	16-TSSOP	Obsolete
MAX232EIPWR	Texas Instruments	RS232	2/2	250kbps	4.5V ~ 5.5V	500mV	-40°C ~ 85°C	16-TSSOP	Active
MAX232ACUE+	Analog Devices Inc./Maxim Integrated	RS232	2/2	200kbps	4.5V ~ 5.5V	500mV	0°C ~ 70°C	16-TSSOP	Active
MAX232ACUE+T	Analog Devices Inc./Maxim Integrated	RS232	2/2	200kbps	4.5V ~ 5.5V	500mV	0°C ~ 70°C	16-TSSOP	Active
MAX232AEUE+	Analog Devices Inc./Maxim Integrated	RS232	2/2	200kbps	4.5V ~ 5.5V	500mV	-40°C ~ 85°C	16-TSSOP	Active
MAX3232CUE+	Analog Devices Inc./Maxim Integrated	RS232	2/2	235Kbps	3V ~ 5.5V	300mV	0°C ~ 70°C	16-TSSOP	Active
MAX3232CUE+T	Analog Devices Inc./Maxim Integrated	RS232	2/2	235Kbps	3V ~ 5.5V	300mV	0°C ~ 70°C	16-TSSOP	Active
MAX3232EUE+	Analog Devices Inc./Maxim Integrated	RS232	2/2	235Kbps	3V ~ 5.5V	300mV	-40°C ~ 85°C	16-TSSOP	Active
MAX3232EUE+T	Analog Devices Inc./Maxim Integrated	RS232	2/2	235Kbps	3V ~ 5.5V	300mV	-40°C ~ 85°C	16-TSSOP	Active
SP3232EBCY-L/TR	MaxLinear, Inc.	RS232	2/2	250kbps	3V ~ 5.5V	300mV	0°C ~ 70°C	16-TSSOP	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): MAX232ECPW provides parametric equivalence to TRS232ECPW with identical electrical and thermal specifications. Both parts are classified as obsolete; however, MAX232ECPW maintains higher inventory availability (713 pcs vs. 1290 pcs for TRS232ECPW).

For Active Product Line Substitution (Recommended for New Designs): MAX232EIPWR is an active Texas Instruments product offering identical electrical specifications to TRS232ECPW with extended operating temperature range (-40°C to 85°C). This part is supplied in Cut Tape and Digi-Reel packaging and provides superior long-term availability.

For Extended Temperature Range Applications: MAX232AEUE+ and MAX232AEUE+ (Analog Devices Inc./Maxim Integrated) are active products supporting -40°C to 85°C operation. Data rate specification is 200kbps, which remains compatible with TRS232ECPW applications requiring up to 250kbps.

For Low-Voltage Supply Applications: MAX3232CUE+, MAX3232CUE+T, MAX3232EUE+, and MAX3232EUE+T support 3V to 5.5V supply voltage range, enabling operation in systems with lower supply rails. These parts feature 300mV receiver hysteresis and 235Kbps data rate, both meeting or exceeding TRS232ECPW requirements.

For High-Volume Production: MAX3232CUE+T and MAX3232EUE+T offer the highest inventory levels (25,400 pcs and 17,700 pcs respectively) in Cut Tape and Digi-Reel packaging, supporting automated assembly processes.

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and EAR99 export classification consistent with TRS232ECPW.

Frequently Asked Questions (FAQ)

Q: Can MAX3232 series parts directly replace TRS232ECPW? A: Yes. MAX3232 parts meet all mandatory compatibility parameters (RS232 protocol, 2/2 drivers/receivers, full duplex, 16-TSSOP package). The 300mV receiver hysteresis is lower than TRS232ECPW's 500mV specification, providing improved noise margin. The 235Kbps data rate meets the 250kbps requirement. Extended supply voltage range (3V to 5.5V) is compatible with 4.5V to 5.5V applications.

Q: What is the difference between MAX232EIPWR and MAX232ECPW? A: Both are Texas Instruments RS232 transceivers with identical electrical specifications (250kbps, 500mV hysteresis, 4.5V to 5.5V supply). MAX232EIPWR is an active product with extended operating temperature (-40°C to 85°C) and is supplied in Cut Tape and Digi-Reel packaging. MAX232ECPW is obsolete and supplied in Tube packaging.

Q: Are there supply voltage compatibility concerns with MAX3232 substitutes? A: No. MAX3232 parts operate across 3V to 5.5V supply voltage. Applications designed for TRS232ECPW (4.5V to 5.5V) fall within this range. The wider voltage specification provides additional design flexibility without requiring circuit modifications.

Q: Which substitute part offers the best long-term availability? A: MAX3232CUE+T and MAX3232EUE+T are active products with the highest inventory levels (25,400 pcs and 17,700 pcs respectively). Both are supplied in Cut Tape and Digi-Reel packaging suitable for high-volume automated assembly.

Q: Do all substitute parts maintain the same package footprint? A: Yes. All substitute parts use 16-TSSOP (0.173", 4.40mm Width) surface mount packaging, ensuring PCB layout compatibility without redesign.

Q: What is the significance of receiver hysteresis differences? A: TRS232ECPW specifies 500mV receiver hysteresis. Substitute parts with 300mV hysteresis (MAX3232 series, SP3232EBCY-L/TR) provide tighter input threshold margins, improving noise immunity in applications with marginal signal quality. This is a performance enhancement, not a limitation.

Q: Are there compliance or certification differences between substitutes? A: All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and EAR99 export classification. No additional certifications or compliance modifications are required for substitution.

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