TRS208IDWG4 Equivalent & Substitute Parts

Part Overview

The TRS208IDWG4 is a full-duplex RS232 transceiver IC manufactured by Texas Instruments, featuring 4 drivers and 4 receivers in a 24-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a supply voltage range of 4.5V to 5.5V with a maximum data rate of 120Kbps and maintains full RS232 protocol compliance with 500mV receiver hysteresis.

Key Parameters

Parameter	Value
Manufacturer Part Number	TRS208IDWG4
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	4/4
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	120Kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	24-SOIC (0.295", 7.50mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the TRS208IDWG4 is determined by the following critical parameters:

Primary Substitution Criteria:

Protocol: RS232
Number of Drivers/Receivers: 4/4
Duplex: Full
Package / Case: 24-SOIC (0.295", 7.50mm Width)
Voltage - Supply: 4.5V ~ 5.5V
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Secondary Compatibility Parameters:

Receiver Hysteresis: 500 mV (primary specification; 650 mV variants acceptable with design verification)
Data Rate: 120Kbps minimum (higher rates such as 230Kbps are backward compatible)
Operating Temperature: -40°C ~ 85°C (narrower ranges such as 0°C ~ 70°C require application assessment)

Substitute parts are grouped into three categories: direct equivalents (identical packaging and specifications), active upgrades (enhanced performance with same core functionality), and manufacturer-recommended alternatives (different manufacturers with equivalent electrical characteristics).

Parameter Comparison

Part Number	Manufacturer	Product Status	Data Rate	Receiver Hysteresis	Operating Temperature	Packaging	Inventory
TRS208IDWG4	Texas Instruments	Obsolete	120Kbps	500 mV	-40°C ~ 85°C	DWG (Digi-Reel)	993 Pcs
TRS208IDWR	Texas Instruments	Obsolete	120Kbps	500 mV	-40°C ~ 85°C	CT & Digi-Reel	5643 Pcs
MAX208EEWG+T	Analog Devices Inc./Maxim Integrated	Active	120Kbps	500 mV	-40°C ~ 85°C	Tape & Reel	2846 Pcs
MAX208ECWG+	Analog Devices Inc./Maxim Integrated	Active	120Kbps	500 mV	0°C ~ 70°C	Tube	3357 Pcs
ADM208ARZ	Analog Devices Inc.	Active	120Kbps	650 mV	-40°C ~ 85°C	Tube	1940 Pcs
ADM208ARZ-REEL	Analog Devices Inc.	Active	120Kbps	650 mV	-40°C ~ 85°C	CT & Digi-Reel	3400 Pcs
ADM208EARZ	Analog Devices Inc.	Active	230Kbps	650 mV	-40°C ~ 85°C	Tube	2476 Pcs
ADM208EARZ-REEL	Analog Devices Inc.	Active	230Kbps	650 mV	-40°C ~ 85°C	CT & Digi-Reel	2200 Pcs
HIN208ECBZ	Renesas Electronics Corporation	Active	230Kbps	500 mV	0°C ~ 70°C	Tube	2350 Pcs
HIN208ECBZ-T	Renesas Electronics Corporation	Active	230Kbps	500 mV	0°C ~ 70°C	Tape & Reel	898 Pcs
MAX208CWG+	Analog Devices Inc./Maxim Integrated	Active	120Kbps	500 mV	0°C ~ 70°C	Tube	1368 Pcs

Engineering Selection Recommendations

Direct Equivalent (Same Specifications): TRS208IDWR is a direct equivalent from Texas Instruments with identical electrical specifications and operating range. This part maintains obsolete status but offers higher inventory availability (5643 Pcs) compared to the TRS208IDWG4.

Active Substitutes with Full Compatibility: MAX208EEWG+T and MAX208ECWG+ from Analog Devices Inc./Maxim Integrated are active products with identical core specifications (4/4 transceiver, RS232, 120Kbps, 500mV hysteresis, 4.5V-5.5V supply). MAX208EEWG+T maintains the full -40°C to 85°C operating range, while MAX208ECWG+ operates within 0°C to 70°C. Both are ROHS3 compliant with MSL 1 rating.

Active Substitutes with Extended Performance: ADM208ARZ and ADM208ARZ-REEL from Analog Devices Inc. provide full -40°C to 85°C temperature coverage with 650mV receiver hysteresis and maintain 120Kbps data rate. ADM208EARZ and ADM208EARZ-REEL offer enhanced 230Kbps data rate capability while preserving full temperature range and 650mV hysteresis. All ADM208 variants are ROHS3 compliant with MSL 1 rating.

Alternative Manufacturer Option: HIN208ECBZ and HIN208ECBZ-T from Renesas Electronics Corporation provide 230Kbps data rate with 500mV hysteresis matching the original specification. Operating temperature is limited to 0°C to 70°C. MSL rating is 3 (168 Hours), requiring moisture control during storage and handling.

All substitute parts maintain ROHS3 compliance and EAR99 ECCN classification consistent with the original TRS208IDWG4.

Frequently Asked Questions (FAQ)

Q: Can MAX208ECWG+ replace TRS208IDWG4 in applications requiring -40°C operation? A: No. MAX208ECWG+ operates within 0°C to 70°C range only. For full -40°C to 85°C coverage, use MAX208EEWG+T, ADM208ARZ, ADM208ARZ-REEL, ADM208EARZ, or ADM208EARZ-REEL.

Q: What is the difference between ADM208ARZ and ADM208EARZ? A: ADM208ARZ supports 120Kbps data rate, while ADM208EARZ supports 230Kbps. Both maintain 650mV receiver hysteresis and -40°C to 85°C operating temperature. The higher data rate of ADM208EARZ is backward compatible with 120Kbps applications.

Q: Are packaging variants (Tube vs. Tape & Reel) electrically equivalent? A: Yes. Tube and Tape & Reel packaging variants of the same part number (e.g., ADM208ARZ vs. ADM208ARZ-REEL) are electrically identical. Packaging selection depends on assembly process requirements and inventory management.

Q: Does the 650mV receiver hysteresis of ADM208 variants affect compatibility? A: ADM208 variants with 650mV hysteresis are compatible with TRS208IDWG4 designs specified for 500mV hysteresis. The higher hysteresis provides improved noise immunity and does not degrade performance in standard RS232 applications.

Q: What is the MSL significance of HIN208ECBZ compared to other substitutes? A: HIN208ECBZ has MSL 3 (168 Hours) versus MSL 1 (Unlimited) for other substitutes. This requires moisture control during storage and limits shelf life to 168 hours after moisture exposure. Other substitutes have unlimited shelf life under standard storage conditions.

Q: Can HIN208ECBZ be used in -40°C applications? A: No. HIN208ECBZ operates within 0°C to 70°C range only. For extended temperature coverage, select MAX208EEWG+T, ADM208ARZ, ADM208ARZ-REEL, ADM208EARZ, or ADM208EARZ-REEL.

Q: Is the 24-SOIC package footprint identical across all substitutes? A: Yes. All substitute parts use 24-SOIC (0.295", 7.50mm Width) package with identical pin configuration and PCB footprint, enabling direct board-level substitution without layout modification.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message