GD65232DWR Equivalent & Substitute Parts

Part Overview

The GD65232DWR is a 3/5 Transceiver Full RS232 interface integrated circuit manufactured by Texas Instruments in a 20-SOIC package. This part operates as a full-duplex RS232 transceiver with integrated drivers and receivers, supporting data rates up to 120 kbps across a wide supply voltage range of 5V and ±7.5V to ±15V. The GD65232DWR is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design requirements and production continuity. Substitute parts must maintain functional equivalence in transceiver topology, RS232 protocol compliance, and physical mounting characteristics while accommodating variations in package form factors and electrical specifications.

Substiute Parts

GD65232DWR

Texas InstrumentsIn Stock: 1221GD65232DWR Datasheet

Current PartRFQ

GD65232PWR

Texas InstrumentsIn Stock: 35138GD65232PWR Datasheet

MFR RecommendedRFQ

MAX3185CWP+

Analog Devices Inc./Maxim IntegratedIn Stock: 886MAX3185CWP+ Datasheet

MFR RecommendedRFQ

MAX3185CWP+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1044MAX3185CWP+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GD65232DWR is determined by the following critical parameters: RS232 protocol compliance, 3/5 driver/receiver configuration, full-duplex operation, surface mount technology, and 20-pin package format. The substitute parts are grouped into two categories based on package compatibility:

Category 1: Package-Compatible Substitutes (20-SOIC) Parts maintaining the identical 20-SOIC (0.295", 7.50mm Width) package form factor as the GD65232DWR. These substitutes provide direct physical and electrical compatibility with existing PCB layouts designed for the original part.

Category 2: Functional Equivalents with Alternative Packaging (20-TSSOP) Parts providing equivalent transceiver functionality and RS232 protocol support with the same 3/5 driver/receiver configuration but in alternative surface mount packages. These require PCB redesign or adapter considerations.

Substitution eligibility is based on matching the following parameters: protocol (RS232), transceiver type, driver/receiver count (3/5), duplex mode (full), and surface mount mounting type. Variations in data rate, supply voltage range, operating temperature, and receiver hysteresis are permitted within the constraints of the application requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: MAX3185CWP+T

The MAX3185CWP+T is the recommended primary substitute for the GD65232DWR. Both parts share the identical 20-SOIC package form factor, enabling direct PCB compatibility without layout modifications. The MAX3185CWP+T maintains full-duplex RS232 transceiver functionality with 3/5 driver/receiver configuration. The part is manufactured by Analog Devices Inc./Maxim Integrated and carries active product status with ROHS3 compliance and unlimited moisture sensitivity level rating. The MAX3185CWP+T operates within a narrower supply voltage range (4.5V ~ 5.5V) compared to the GD65232DWR (5V, ±7.5V ~ ±15V) and supports a higher data rate of 230 kbps versus 120 kbps. Operating temperature range is 0°C ~ 70°C, which is narrower than the GD65232DWR range of -40°C ~ 85°C. These electrical differences require verification against specific application requirements.

Secondary Substitute: MAX3185CWP+

The MAX3185CWP+ provides equivalent functionality to the MAX3185CWP+T with identical electrical specifications and 20-SOIC package compatibility. This part is supplied in tube packaging rather than tape and reel format. Selection between MAX3185CWP+ and MAX3185CWP+T depends on procurement and assembly requirements.

Alternative Substitute: GD65232PWR

The GD65232PWR is a Texas Instruments product maintaining the same base product number (GD65232) as the GD65232DWR, ensuring functional equivalence in transceiver topology and RS232 protocol support. The GD65232PWR is supplied in a 20-TSSOP package (0.173", 4.40mm Width) rather than the 20-SOIC package of the original part. This package difference requires PCB redesign or use of adapter solutions. The GD65232PWR carries active product status and maintains identical electrical specifications including supply voltage range (5V, ±7.5V ~ ±15V), operating temperature range (-40°C ~ 85°C), and data rate (120 kbps). ROHS3 compliance and unlimited MSL rating are maintained.

All substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity level classification, ensuring regulatory and environmental compatibility with the original GD65232DWR specification.

Frequently Asked Questions (FAQ)

Q: Can the MAX3185CWP+T be used as a direct replacement for the GD65232DWR without PCB modifications?

A: Yes, the MAX3185CWP+T shares the identical 20-SOIC package form factor (0.295", 7.50mm Width) with the GD65232DWR, enabling direct PCB compatibility. However, the narrower supply voltage range (4.5V ~ 5.5V versus 5V, ±7.5V ~ ±15V) and reduced operating temperature range (0°C ~ 70°C versus -40°C ~ 85°C) must be verified against application requirements.

Q: What is the primary difference between GD65232PWR and GD65232DWR?

A: The GD65232PWR and GD65232DWR share identical electrical specifications and transceiver functionality. The primary difference is the package form factor: GD65232PWR uses a 20-TSSOP package (0.173", 4.40mm Width) while GD65232DWR uses a 20-SOIC package (0.295", 7.50mm Width). The GD65232PWR carries active product status, whereas the GD65232DWR is obsolete.

Q: Are the MAX3185CWP+ and MAX3185CWP+T electrically identical?

A: Yes, the MAX3185CWP+ and MAX3185CWP+T are electrically identical. Both parts feature 3/5 full-duplex RS232 transceiver functionality, 230 kbps data rate, 4.5V ~ 5.5V supply voltage range, and 0°C ~ 70°C operating temperature range. The difference is packaging format: MAX3185CWP+ is supplied in tube packaging, while MAX3185CWP+T is supplied in tape and reel format.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: RS232 protocol compliance, 3/5 driver/receiver configuration, full-duplex operation, surface mount mounting type, and 20-pin package format. Package form factor (20-SOIC versus 20-TSSOP) affects PCB compatibility. Variations in data rate, supply voltage range, operating temperature, and receiver hysteresis are application-dependent considerations.

Q: Does the higher data rate of MAX3185CWP+T (230 kbps) affect compatibility with systems designed for GD65232DWR (120 kbps)?

A: The higher data rate capability of the MAX3185CWP+T does not create incompatibility. The part operates at the data rate specified by the system design. Systems designed for 120 kbps operation will function correctly with the MAX3185CWP+T, which supports this rate and higher rates up to 230 kbps.

Q: What is the impact of the 650 mV receiver hysteresis in MAX3185 parts versus 500 mV in GD65232DWR?

A: Receiver hysteresis affects noise immunity and switching threshold characteristics. The 650 mV hysteresis in MAX3185 parts provides increased noise immunity compared to the 500 mV hysteresis in GD65232DWR. This difference requires evaluation against specific signal integrity and noise environment requirements of the application.

Q: Can GD65232PWR be used if the application requires the extended temperature range of GD65232DWR?

A: Yes, the GD65232PWR maintains the same extended operating temperature range (-40°C ~ 85°C) as the GD65232DWR. The GD65232PWR is suitable for applications requiring this temperature specification. The package form factor difference (20-TSSOP versus 20-SOIC) requires PCB redesign or adapter solutions.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all substitute parts listed (GD65232PWR, MAX3185CWP+, MAX3185CWP+T) are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1) rating, matching the compliance status of the GD65232DWR.