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SN65C3232EDRG4 Equivalent & Substitute Parts
Part Overview
The SN65C3232EDRG4 is a 2/2 transceiver full RS232 interface IC manufactured by Texas Instruments in a 16-SOIC surface mount package. This part is discontinued at DiGi Electronics but remains available in inventory (3800 pcs). The device operates across a 3V to 5.5V supply range with a 1Mbps data rate and -40°C to 85°C operating temperature range. Due to its discontinued status, equivalent and substitute parts are necessary for ongoing production and design continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SN65C3232EDRG4 |
| Manufacturer | Texas Instruments |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers/Receivers | 2/2 |
| Duplex | Full |
| Receiver Hysteresis | 300 mV |
| Data Rate | 1Mbps |
| Voltage - Supply | 3V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the SN65C3232EDRG4 is determined by the following critical parameters:
Primary Compatibility Criteria:
- RS232 protocol with 2/2 driver/receiver configuration
- Full duplex operation
- 16-SOIC package footprint
- Supply voltage range: 3V to 5.5V
- Surface mount mounting type
Secondary Compatibility Criteria:
- Operating temperature range (-40°C to 85°C preferred for industrial applications)
- Data rate capability (1Mbps minimum)
- Receiver hysteresis specification (300 mV nominal)
- RoHS3 compliance and MSL rating
Substitute parts are grouped into two categories: parametric equivalents from Texas Instruments (SN65C3232 series variants) and manufacturer-recommended alternatives from Renesas Electronics Corporation (ICL3232 series). All substitutes maintain identical package geometry and electrical interface compatibility.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Data Rate | Operating Temp | Receiver Hysteresis | Inventory | Packaging |
|---|---|---|---|---|---|---|---|
| SN65C3232EDRG4 | Texas Instruments | Discontinued | 1Mbps | -40°C ~ 85°C | 300 mV | 3800 pcs | Digi-Reel |
| SN65C3232DR | Texas Instruments | Active | 1Mbps | -40°C ~ 85°C | 300 mV | 2500 pcs | Cut Tape & Digi-Reel |
| SN65C3232EDR | Texas Instruments | Active | 1Mbps | -40°C ~ 85°C | 300 mV | 20400 pcs | Cut Tape & Digi-Reel |
| TRSF3232EIDR | Texas Instruments | Active | 1Mbps | -40°C ~ 85°C | 300 mV | 3493 pcs | Cut Tape & Digi-Reel |
| ICL3232CBNZ | Renesas Electronics | Active | 250kbps | 0°C ~ 70°C | 300 mV | 9884 pcs | Tube |
| ICL3232CBNZ-T | Renesas Electronics | Active | 250kbps | 0°C ~ 70°C | 300 mV | 1321 pcs | Cut Tape & Digi-Reel |
| ICL3232ECBNZ | Renesas Electronics | Active | 250kbps | 0°C ~ 70°C | 500 mV | 2342 pcs | Tube |
| ICL3232ECBNZ-T | Renesas Electronics | Active | 250kbps | 0°C ~ 70°C | 500 mV | 17795 pcs | Cut Tape & Digi-Reel |
| ICL3232EIBNZ | Renesas Electronics | Active | 250kbps | -40°C ~ 85°C | 500 mV | 2063 pcs | Tube |
| ICL3232EIBNZ-T | Renesas Electronics | Active | 250kbps | -40°C ~ 85°C | 500 mV | 35200 pcs | Cut Tape & Digi-Reel |
| ICL3232IBNZ | Renesas Electronics | Active | 250kbps | -40°C ~ 85°C | 300 mV | 1364 pcs | Tube |
Engineering Selection Recommendations
Tier 1 - Direct Parametric Equivalents (Recommended):
SN65C3232EDR and SN65C3232DR are direct parametric equivalents manufactured by Texas Instruments. Both maintain identical electrical specifications including 1Mbps data rate, 300 mV receiver hysteresis, and -40°C to 85°C operating temperature. SN65C3232EDR offers the highest inventory availability (20400 pcs) and active product status. These parts require no design modification and provide the shortest qualification timeline.
Tier 2 - Texas Instruments Variants:
TRSF3232EIDR is an active Texas Instruments part with identical electrical performance to the SN65C3232EDRG4. This variant maintains full compatibility with the original specification and supports continued use of existing designs without redesign.
Tier 3 - Renesas Electronics Alternatives:
ICL3232EIBNZ-T and ICL3232IBNZ provide manufacturer-recommended alternatives from Renesas Electronics. ICL3232EIBNZ-T offers the highest inventory (35200 pcs) among Renesas options and maintains the -40°C to 85°C operating temperature range. However, these parts operate at 250kbps data rate, which is lower than the original 1Mbps specification. Selection of Renesas alternatives requires confirmation that the reduced data rate is acceptable for the application.
Compliance Considerations:
All listed substitutes maintain ROHS3 compliance and are suitable for applications requiring environmental compliance certification. Packaging options include both tube and cut tape formats with Digi-Reel availability for high-volume production.
Frequently Asked Questions (FAQ)
Q: Can SN65C3232EDR be used as a direct replacement for SN65C3232EDRG4?
A: Yes. SN65C3232EDR is a parametric equivalent with identical electrical specifications, package geometry, and pin configuration. The primary difference is product status (active vs. discontinued) and packaging format. No design changes are required.
Q: What is the difference between the Texas Instruments and Renesas substitute options?
A: Texas Instruments substitutes (SN65C3232DR, SN65C3232EDR, TRSF3232EIDR) maintain the 1Mbps data rate specification. Renesas Electronics alternatives (ICL3232 series) operate at 250kbps. Selection depends on whether the application requires the full 1Mbps capability or if 250kbps is sufficient.
Q: Are there operating temperature differences between substitutes?
A: Yes. Texas Instruments variants maintain -40°C to 85°C operation. Most Renesas ICL3232 parts operate at 0°C to 70°C, except ICL3232EIBNZ and ICL3232EIBNZ-T which support -40°C to 85°C. For industrial or extended temperature applications, select parts with the -40°C to 85°C range.
Q: What packaging formats are available?
A: Texas Instruments substitutes are available in Cut Tape and Digi-Reel formats. Renesas parts are supplied in Tube or Cut Tape with Digi-Reel options. Select based on production volume and assembly line requirements.
Q: Does receiver hysteresis affect substitution compatibility?
A: Receiver hysteresis is a secondary parameter. The original part specifies 300 mV. Texas Instruments substitutes maintain 300 mV. Renesas ICL3232ECBNZ and ICL3232EIBNZ variants specify 500 mV hysteresis. Both values are within acceptable RS232 interface tolerances, but confirm application requirements before selection.
Q: Are all substitutes RoHS3 compliant?
A: Yes. All listed substitute parts maintain ROHS3 compliance and are suitable for applications requiring environmental compliance certification.
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