TRS211CDWR RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRS211CDWR is a 4/5 full-duplex RS232 transceiver manufactured by Texas Instruments in a 28-SOIC surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The device operates at 4.5V to 5.5V supply voltage with a data rate of 120 Kbps and receiver hysteresis of 500 mV across an operating temperature range of 0°C to 70°C.

Key Parameters

Parameter	Value
Manufacturer Part Number	TRS211CDWR
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	4/5
Duplex	Full
Data Rate	120 Kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Receiver Hysteresis	500 mV
Package / Case	28-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the TRS211CDWR is determined by the following critical parameters:

Protocol: RS232
Number of Drivers/Receivers: 4/5
Duplex: Full
Package / Case: 28-SOIC (0.295", 7.50mm Width)
Voltage - Supply: 4.5V ~ 5.5V
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

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

Parametric Equivalents match all critical electrical and mechanical parameters with identical specifications for data rate, receiver hysteresis, and operating temperature range.

Upgrade Parts maintain compatibility with all critical parameters but offer extended operating temperature ranges (-40°C to 85°C) or higher data rates (230 Kbps), providing enhanced performance characteristics while preserving pin-for-pin compatibility.

Manufacturer Recommended Parts are designated by the original manufacturer as preferred alternatives, offering active product status and extended temperature operation with minor variations in receiver hysteresis (650 mV vs. 500 mV).

Parameter Comparison

Part Number	Manufacturer	Product Status	Data Rate	Operating Temperature	Receiver Hysteresis	Packaging	Inventory
TRS211CDWR	Texas Instruments	Obsolete	120 Kbps	0°C ~ 70°C	500 mV	Cut Tape (CT)	974 Pcs
MAX211CDWR	Texas Instruments	Active	120 Kbps	0°C ~ 70°C	500 mV	Tape & Reel (TR)	4778 Pcs
MAX213CDWR	Texas Instruments	Obsolete	120 Kbps	0°C ~ 70°C	500 mV	Cut Tape (CT) & Digi-Reel®	5473 Pcs
HIN211EIBZ	Renesas Electronics Corporation	Active	230 Kbps	-40°C ~ 85°C	500 mV	Tube	1511 Pcs
MAX211EEWI+	Analog Devices Inc./Maxim Integrated	Active	120 Kbps	-40°C ~ 85°C	500 mV	Tube	1800 Pcs
MAX211EEWI+T	Analog Devices Inc./Maxim Integrated	Active	120 Kbps	-40°C ~ 85°C	500 mV	Tape & Reel (TR)	3300 Pcs
ADM211ARZ	Analog Devices Inc.	Active	120 Kbps	-40°C ~ 85°C	650 mV	Tube	3200 Pcs
ADM211ARZ-REEL	Analog Devices Inc.	Active	120 Kbps	-40°C ~ 85°C	650 mV	Tape & Reel (TR)	3002 Pcs
ADM211EARZ	Analog Devices Inc.	Active	120 Kbps	-40°C ~ 85°C	650 mV	Tube	1618 Pcs
ADM211EARZ-REEL	Analog Devices Inc.	Active	120 Kbps	-40°C ~ 85°C	650 mV	Tape & Reel (TR)	4600 Pcs
HIN211ECBZ	Renesas Electronics Corporation	Active	230 Kbps	0°C ~ 70°C	500 mV	Tube	3516 Pcs

Engineering Selection Recommendations

For applications requiring direct replacement of the obsolete TRS211CDWR with identical specifications, MAX211CDWR is the primary parametric equivalent, offering active product status and equivalent electrical performance within the same operating temperature range.

For designs requiring extended operating temperature capability (-40°C to 85°C), MAX211EEWI+, MAX211EEWI+T, HIN211EIBZ, and the ADM211 series (ADM211ARZ, ADM211ARZ-REEL, ADM211EARZ, ADM211EARZ-REEL) provide active product status with enhanced temperature performance. The ADM211 series introduces a 650 mV receiver hysteresis specification compared to the original 500 mV, which remains within RS232 standard compliance.

For applications where higher data rates are beneficial, HIN211EIBZ and HIN211ECBZ support 230 Kbps operation while maintaining full RS232 protocol compliance and 28-SOIC package compatibility.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original part specification.

Frequently Asked Questions (FAQ)

Q: Can MAX211CDWR be used as a direct replacement for TRS211CDWR?

A: Yes. MAX211CDWR is a parametric equivalent with identical electrical specifications (120 Kbps data rate, 500 mV receiver hysteresis, 0°C to 70°C operating temperature) and package configuration (28-SOIC). The primary difference is product status: MAX211CDWR is active while TRS211CDWR is obsolete.

Q: What is the difference between the ADM211 series and MAX211 series?

A: Both series maintain identical data rates (120 Kbps) and supply voltage (4.5V to 5.5V). The ADM211 series specifies 650 mV receiver hysteresis compared to 500 mV in the MAX211 series. Both support extended operating temperature ranges (-40°C to 85°C) and are available in tube and tape & reel packaging options.

Q: Are HIN211EIBZ and HIN211ECBZ interchangeable?

A: Both parts are manufactured by Renesas Electronics Corporation with identical 28-SOIC packaging and 230 Kbps data rate. HIN211EIBZ operates across -40°C to 85°C, while HIN211ECBZ operates across 0°C to 70°C. Selection depends on the required operating temperature range for the application.

Q: Does receiver hysteresis variation affect circuit compatibility?

A: Receiver hysteresis of 500 mV and 650 mV both comply with RS232 standard specifications. Selection between parts with different hysteresis values depends on application-specific noise immunity requirements and signal integrity margins.

Q: What packaging options are available for production quantities?

A: Tape & Reel (TR) packaging is available for MAX211CDWR, MAX211EEWI+T, ADM211ARZ-REEL, and ADM211EARZ-REEL. Tube packaging is available for HIN211EIBZ, MAX211EEWI+, ADM211ARZ, ADM211EARZ, and HIN211ECBZ. Cut Tape (CT) packaging is available for MAX213CDWR.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the original TRS211CDWR specification.

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