TRS202CDWR RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRS202CDWR is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 16-SOIC surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The TRS202CDWR operates within a 4.5V to 5.5V supply range with a 120 Kbps data rate and 500 mV receiver hysteresis, suitable for legacy RS232 communication applications requiring full transceiver functionality.

Key Parameters

Parameter	Value
Manufacturer Part Number	TRS202CDWR
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	120 Kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	16-SOIC (0.295", 7.50mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the TRS202CDWR is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Protocol: RS232
Number of Drivers/Receivers: 2/2
Duplex: Full
Package / Case: 16-SOIC (0.295", 7.50mm Width)
Voltage - Supply: 4.5V ~ 5.5V
Mounting Type: Surface Mount

Acceptable Variation Parameters:

Receiver Hysteresis: 400 mV to 650 mV (within functional tolerance)
Data Rate: 120 Kbps minimum (higher rates acceptable)
Operating Temperature: 0°C ~ 70°C minimum (extended ranges acceptable)
Product Status: Active parts preferred for new designs; obsolete parts acceptable for legacy support

Substitute parts are grouped into three categories based on their relationship to the TRS202CDWR:

Parametric Equivalents - Parts matching all critical parameters with identical or superior specifications
Direct Equivalents - Parts with identical electrical and mechanical specifications from alternative manufacturers
Manufacturer Recommended Upgrades - Active production parts with enhanced specifications suitable for design refresh

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Duplex	Receiver Hysteresis	Data Rate	Supply Voltage	Operating Temp	Package	Product Status
TRS202CDWR	Texas Instruments	RS232	2/2	Full	500 mV	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Obsolete
MAX232DWR	Texas Instruments	RS232	2/2	Full	500 mV	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Obsolete
TRS202ECDWR	Texas Instruments	RS232	2/2	Full	500 mV	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Obsolete
TRS232DWR	Texas Instruments	RS232	2/2	Full	500 mV	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Obsolete
MAX202ECWE+	Analog Devices Inc./Maxim Integrated	RS232	2/2	Full	500 mV	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Active
MAX202EEWE+T	Analog Devices Inc./Maxim Integrated	RS232	2/2	Full	500 mV	120 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOIC	Active
ADM202EARWZ	Analog Devices Inc.	RS232	2/2	Full	650 mV	230 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOIC	Active
ADM202EARWZ-REEL	Analog Devices Inc.	RS232	2/2	Full	650 mV	230 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOIC	Active
ADM202JRWZ	Analog Devices Inc.	RS232	2/2	Full	400 mV	—	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Active
ADM202JRWZ-REEL	Analog Devices Inc.	RS232	2/2	Full	400 mV	—	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Active
HIN202CBZ	Renesas Electronics Corporation	RS232	2/2	Full	500 mV	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Active

Engineering Selection Recommendations

For Legacy System Support (Obsolete Part Replacement): Select from parametric equivalents MAX232DWR, TRS202ECDWR, or TRS232DWR when direct pin-for-pin compatibility with identical electrical specifications is required. These parts maintain the same receiver hysteresis (500 mV), data rate (120 Kbps), and operating temperature range (0°C ~ 70°C) as the TRS202CDWR. All are ROHS3 compliant and REACH unaffected.

For Active Production (Design Refresh): MAX202ECWE+ and MAX202EEWE+T from Analog Devices Inc./Maxim Integrated are active production parts suitable for new designs. MAX202EEWE+T offers extended operating temperature range (-40°C ~ 85°C) compared to the original specification. Both maintain full electrical compatibility with the TRS202CDWR.

For Enhanced Performance Requirements: ADM202EARWZ and ADM202EARWZ-REEL provide higher data rate capability (230 Kbps versus 120 Kbps) and extended operating temperature range (-40°C ~ 85°C). These parts are active production items from Analog Devices Inc. with higher receiver hysteresis (650 mV), which remains within acceptable functional tolerance for RS232 applications.

For Temperature-Matched Legacy Applications: ADM202JRWZ and ADM202JRWZ-REEL match the original operating temperature range (0°C ~ 70°C) while providing active production status. Receiver hysteresis is 400 mV, which is tighter than the original 500 mV specification.

For Multi-Source Availability: HIN202CBZ from Renesas Electronics Corporation provides identical electrical specifications (500 mV hysteresis, 120 Kbps data rate, 0°C ~ 70°C operating range) with active production status. This part offers supply chain diversification while maintaining full compatibility.

Frequently Asked Questions (FAQ)

Q: Can MAX202EEWE+T replace TRS202CDWR in existing designs? A: Yes. MAX202EEWE+T matches all critical electrical parameters (RS232 protocol, 2/2 drivers/receivers, full duplex, 500 mV hysteresis, 120 Kbps data rate, 4.5V ~ 5.5V supply) and package specification (16-SOIC). The extended operating temperature range (-40°C ~ 85°C) is a superset of the original 0°C ~ 70°C specification, making it a direct functional replacement.

Q: What is the difference between ADM202EARWZ and ADM202JRWZ? A: Both are Analog Devices Inc. parts in 16-SOIC packages with identical supply voltage (4.5V ~ 5.5V). ADM202EARWZ operates at -40°C ~ 85°C with 650 mV receiver hysteresis and 230 Kbps data rate. ADM202JRWZ operates at 0°C ~ 70°C with 400 mV receiver hysteresis. Select ADM202EARWZ for extended temperature applications; select ADM202JRWZ for temperature-matched legacy support.

Q: Are tape and reel packaging options functionally equivalent to tube packaging? A: Yes. Packaging format (tube versus tape and reel) does not affect electrical or mechanical functionality. ADM202EARWZ (tube) and ADM202EARWZ-REEL (tape and reel) are electrically identical. Selection depends on production volume and handling requirements.

Q: Does higher receiver hysteresis affect circuit compatibility? A: Receiver hysteresis variation (400 mV to 650 mV) remains within RS232 functional tolerance. All listed substitutes maintain the required noise immunity and signal detection characteristics for RS232 communication. Higher hysteresis (ADM202EARWZ at 650 mV) provides additional noise margin; lower hysteresis (ADM202JRWZ at 400 mV) provides faster signal detection.

Q: Can I use HIN202CBZ as a direct replacement? A: Yes. HIN202CBZ from Renesas Electronics Corporation matches all critical specifications: RS232 protocol, 2/2 drivers/receivers, full duplex, 500 mV receiver hysteresis, 120 Kbps data rate, 4.5V ~ 5.5V supply voltage, 0°C ~ 70°C operating range, and 16-SOIC package. It is an active production part with ROHS3 compliance.

Q: Which substitute part offers the best long-term availability? A: Active production parts (MAX202ECWE+, MAX202EEWE+T, ADM202 series, and HIN202CBZ) provide superior long-term availability compared to obsolete parts. Among these, HIN202CBZ offers the highest inventory (17,393 pcs) and multi-source supply chain benefits through Renesas Electronics Corporation.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message