GD75232DW Equivalent & Substitute Parts

Part Overview

The GD75232DW is a 3/5 Transceiver Full RS232 interface IC in 20-SOIC packaging manufactured by Texas Instruments. This component is classified as Last Time Buy, indicating discontinued production with limited remaining inventory (3214 pcs). The GD75232DW operates as a full-duplex RS232 transceiver with dual supply voltage capability (5V or ±7.5V ~ 15V), supporting data rates up to 120 kbps across 3 drivers and 5 receivers. Finding equivalent substitute parts is necessary due to the Last Time Buy status and to ensure long-term design flexibility and supply chain continuity.

Substiute Parts

GD75232DW

Texas InstrumentsIn Stock: 3281GD75232DW Datasheet

Current PartRFQ

GD75232DBR

Texas InstrumentsIn Stock: 43310GD75232DBR 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

Substitute parts for the GD75232DW are qualified based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Protocol: RS232
• Number of Drivers/Receivers: 3/5
• Duplex: Full
• Mounting Type: Surface Mount
• Operating Temperature Range: 0°C ~ 70°C
• RoHS Status: ROHS3 Compliant

Secondary Considerations:

• Package / Case format (20-SOIC or equivalent footprint)
• Voltage supply compatibility
• Data rate capability
• Receiver hysteresis specification

The substitute parts identified maintain the core functional parameters (RS232 protocol, 3/5 driver/receiver configuration, full-duplex operation) while offering variations in packaging format, supply voltage range, and data rate performance. These variations allow for design flexibility while preserving electrical compatibility within the RS232 interface standard.

Parameter Comparison

Engineering Selection Recommendations

GD75232DBR (Texas Instruments) The GD75232DBR is the manufacturer-recommended substitute from Texas Instruments. It maintains identical electrical specifications to the GD75232DW (120 kbps data rate, 500 mV receiver hysteresis, dual supply voltage) while offering Active product status and higher inventory availability (43,200 pcs). The primary difference is packaging format: 20-SSOP (0.209", 5.30mm Width) versus 20-SOIC. This substitute is suitable for new designs or redesigns where PCB layout can accommodate the narrower SSOP package footprint.

MAX3185CWP+ and MAX3185CWP+T (Analog Devices Inc./Maxim Integrated) Both MAX3185 variants maintain the 20-SOIC package format identical to the GD75232DW, ensuring direct footprint compatibility. These parts offer enhanced performance with 230 kbps data rate capability and 650 mV receiver hysteresis. However, the supply voltage range is restricted to 4.5V ~ 5.5V single supply operation, eliminating the dual supply capability (±7.5V ~ 15V) of the GD75232DW. The MAX3185CWP+ is supplied in Tube packaging, while MAX3185CWP+T is supplied in Tape & Reel format. Both maintain Active product status and ROHS3 compliance. These substitutes are appropriate for designs operating exclusively on 5V single supply with no requirement for dual supply voltage operation.

Frequently Asked Questions (FAQ)

Q: Can GD75232DBR be used as a direct replacement for GD75232DW? A: GD75232DBR is electrically equivalent to GD75232DW with identical driver/receiver configuration, data rate, and supply voltage specifications. The primary difference is package format: GD75232DBR uses 20-SSOP (5.30mm width) while GD75232DW uses 20-SOIC (7.50mm width). PCB layout modification is required to accommodate the narrower SSOP footprint.

Q: What are the key differences between GD75232DW and MAX3185CWP+? A: Both parts share the 20-SOIC package format and 3/5 driver/receiver RS232 configuration. MAX3185CWP+ offers higher data rate (230 kbps vs. 120 kbps) and higher receiver hysteresis (650 mV vs. 500 mV). The critical limitation is supply voltage: MAX3185CWP+ operates on 4.5V ~ 5.5V single supply only, while GD75232DW supports dual supply operation (5V or ±7.5V ~ 15V). Substitution is valid only for designs using single 5V supply.

Q: Is there a difference between MAX3185CWP+ and MAX3185CWP+T? A: Both parts are electrically identical with the same 20-SOIC package, specifications, and performance. The difference is packaging format: MAX3185CWP+ is supplied in Tube, while MAX3185CWP+T is supplied in Tape & Reel (TR). Selection depends on assembly process requirements and volume handling.

Q: Why is GD75232DW marked as Last Time Buy? A: Last Time Buy status indicates the manufacturer has discontinued production. Existing inventory (3214 pcs) represents the final available stock. For long-term supply chain security, migration to Active status alternatives (GD75232DBR or MAX3185 series) is recommended for new designs.

Q: Can I use MAX3185CWP+ in a design requiring ±15V dual supply operation? A: No. MAX3185CWP+ is specified for 4.5V ~ 5.5V single supply operation only and does not support the ±7.5V ~ 15V dual supply range of GD75232DW. For dual supply requirements, GD75232DBR is the appropriate substitute.

Q: Are all substitute parts ROHS3 compliant? A: Yes. GD75232DBR, MAX3185CWP+, and MAX3185CWP+T are all ROHS3 compliant, matching the compliance status of GD75232DW.