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SP3232EBET-L/TR RS232 Transceiver Equivalent & Substitute Parts
Part Overview
The SP3232EBET-L/TR is a 2/2 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed in a 16-SOIC package. This interface IC operates across a 3V to 5.5V supply range with a 250kbps data rate and 300mV receiver hysteresis. The part is currently obsolete, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for existing designs or new production requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SP3232EBET-L/TR |
| Manufacturer | MaxLinear, Inc. |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers/Receivers | 2/2 |
| Duplex | Full |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Voltage - Supply | 3V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Data Rate | 250kbps |
| Receiver Hysteresis | 300 mV |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility is determined by the following critical parameters:
- Protocol Compatibility: All substitutes must implement RS232 full-duplex transceiver functionality with 2/2 driver/receiver configuration
- Package Compatibility: Primary substitutes maintain the 16-SOIC package footprint (0.295", 7.50mm Width) for direct PCB replacement without layout modification
- Electrical Operating Range: Supply voltage must encompass or match the 3V to 5.5V range; operating temperature must cover -40°C to 85°C minimum
- Data Rate: Substitutes must support 250kbps or higher to maintain or exceed original performance specifications
- Receiver Hysteresis: Acceptable range is 300mV to 650mV; higher hysteresis values provide improved noise immunity
Substitutes are grouped into two categories: direct package replacements (16-SOIC) and package variants (16-TSSOP) from the same manufacturer base product line.
Parameter Comparison
| Part Number | Manufacturer | Package | Voltage Supply | Operating Temp | Data Rate | Receiver Hysteresis | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|
| SP3232EBET-L/TR | MaxLinear, Inc. | 16-SOIC | 3V ~ 5.5V | -40°C ~ 85°C | 250kbps | 300 mV | Obsolete | Not specified |
| SP3232EBEY-L/TR | MaxLinear, Inc. | 16-TSSOP | 3V ~ 5.5V | -40°C ~ 85°C | 250kbps | 300 mV | Active | ROHS3 Compliant |
| MAX3232EEWE+ | Analog Devices Inc./Maxim Integrated | 16-SOIC | 3V ~ 5.5V | -40°C ~ 85°C | 250kbps | 500 mV | Active | ROHS3 Compliant |
| MAX3232EEWE+T | Analog Devices Inc./Maxim Integrated | 16-SOIC | 3V ~ 5.5V | -40°C ~ 85°C | 250kbps | 500 mV | Active | ROHS3 Compliant |
| ADM202EARWZ | Analog Devices Inc. | 16-SOIC | 4.5V ~ 5.5V | -40°C ~ 85°C | 230kbps | 650 mV | Active | ROHS3 Compliant |
| ADM202EARWZ-REEL | Analog Devices Inc. | 16-SOIC | 4.5V ~ 5.5V | -40°C ~ 85°C | 230kbps | 650 mV | Active | ROHS3 Compliant |
| ADM202JRWZ | Analog Devices Inc. | 16-SOIC | 4.5V ~ 5.5V | 0°C ~ 70°C | Not specified | 400 mV | Active | ROHS3 Compliant |
| ADM202JRWZ-REEL | Analog Devices Inc. | 16-SOIC | 4.5V ~ 5.5V | 0°C ~ 70°C | Not specified | 400 mV | Active | ROHS3 Compliant |
| ADM232AARWZ | Analog Devices Inc. | 16-SOIC | 4.5V ~ 5.5V | -40°C ~ 85°C | 200kbps | 400 mV | Active | ROHS3 Compliant |
| ADM232AARWZ-REEL | Analog Devices Inc. | 16-SOIC | 4.5V ~ 5.5V | -40°C ~ 85°C | 200kbps | 400 mV | Active | ROHS3 Compliant |
| ADM232LARZ | Analog Devices Inc. | 16-SOIC | 4.5V ~ 5.5V | -40°C ~ 85°C | 120kbps | 650 mV | Active | ROHS3 Compliant |
Engineering Selection Recommendations
Direct Package Replacement (16-SOIC, Preferred for PCB Compatibility)
MAX3232EEWE+ and MAX3232EEWE+T are the closest electrical equivalents, maintaining identical supply voltage range (3V to 5.5V), operating temperature (-40°C to 85°C), and data rate (250kbps). Both are active products with ROHS3 compliance. The receiver hysteresis is 500mV versus the original 300mV, providing enhanced noise immunity. These parts are suitable for direct substitution in existing 16-SOIC footprints.
ADM202EARWZ and ADM202EARWZ-REEL operate within a narrower supply range (4.5V to 5.5V) and achieve 230kbps data rate. These are active products with ROHS3 compliance and 650mV receiver hysteresis. Selection requires verification that the design does not require operation below 4.5V supply voltage.
ADM232AARWZ and ADM232AARWZ-REEL support the full -40°C to 85°C temperature range with 4.5V to 5.5V supply. Data rate is 200kbps with 400mV receiver hysteresis. These are active products with ROHS3 compliance.
ADM232LARZ operates at 4.5V to 5.5V with 120kbps data rate and 650mV receiver hysteresis. This part is suitable only for applications where lower data rates are acceptable.
ADM202JRWZ and ADM202JRWZ-REEL have a restricted operating temperature range (0°C to 70°C) and narrower supply voltage (4.5V to 5.5V). These are not suitable for designs requiring full -40°C to 85°C operation.
Package Variant (16-TSSOP)
SP3232EBEY-L/TR is an active product from MaxLinear with identical electrical specifications to the original part (3V to 5.5V, -40°C to 85°C, 250kbps, 300mV hysteresis) but in a 16-TSSOP package. This requires PCB layout modification but maintains full functional equivalence and ROHS3 compliance.
Frequently Asked Questions (FAQ)
Q: Can I use MAX3232EEWE+T as a direct replacement for SP3232EBET-L/TR?
A: Yes. Both parts share the 16-SOIC package footprint, identical supply voltage range (3V to 5.5V), operating temperature (-40°C to 85°C), and 250kbps data rate. The MAX3232EEWE+T has 500mV receiver hysteresis compared to the original 300mV, which improves noise immunity without affecting functionality. The MAX3232EEWE+T is an active product with ROHS3 compliance.
Q: What is the difference between ADM202EARWZ and ADM202EARWZ-REEL?
A: Both parts are electrically identical. The difference is packaging format: ADM202EARWZ is supplied in Tube packaging, while ADM202EARWZ-REEL is supplied in Tape & Reel (TR) format. Select based on your procurement and assembly requirements.
Q: Why does SP3232EBEY-L/TR have a different package than the original part?
A: SP3232EBEY-L/TR uses a 16-TSSOP package instead of 16-SOIC. While electrically equivalent with identical specifications, this package variant requires PCB layout modification. The TSSOP package is smaller and offers improved thermal characteristics. This part is recommended only if PCB redesign is feasible.
Q: Can I use ADM202JRWZ in an application requiring -40°C operation?
A: No. ADM202JRWZ has an operating temperature range of 0°C to 70°C, which does not meet the -40°C minimum requirement of the original part. Use ADM202EARWZ, ADM232AARWZ, or MAX3232EEWE+T for full temperature range coverage.
Q: What is the impact of using a substitute with higher receiver hysteresis?
A: Receiver hysteresis determines the voltage difference required between logic high and low thresholds. Higher hysteresis (500mV to 650mV versus 300mV) provides improved noise immunity and more stable operation in electrically noisy environments. This is a beneficial characteristic and does not create compatibility issues.
Q: Are all substitute parts ROHS3 compliant?
A: All active substitute parts listed are ROHS3 compliant. The original SP3232EBET-L/TR is obsolete with unspecified RoHS status. Substitutes ensure compliance with current environmental regulations.
Q: Can I use ADM232LARZ if my application only requires 120kbps operation?
A: Yes, if your design operates at 120kbps or lower and your supply voltage is 4.5V to 5.5V. However, this part is not recommended for designs requiring higher data rates or lower supply voltages.
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