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SP232AEN-L RS232 Transceiver Equivalent & Substitute Parts
Part Overview
The SP232AEN-L is a 2/2 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed in a 16-SOIC surface mount package. This interface IC operates within the 4.5V to 5.5V supply voltage range and supports data rates up to 240 kbps with a receiver hysteresis of 500 mV. The part is RoHS Compliant and currently in active production status with 17,191 units in stock.
Equivalent and substitute parts are identified when design requirements allow flexibility in operating temperature ranges, data rate specifications, receiver hysteresis tolerances, or packaging formats while maintaining core RS232 transceiver functionality, 2/2 driver/receiver configuration, and full-duplex operation.
Substiute Parts
Key Parameters
| Parameter | SP232AEN-L |
|---|---|
| Manufacturer | MaxLinear, Inc. |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers/Receivers | 2/2 |
| Duplex | Full |
| Receiver Hysteresis | 500 mV |
| Data Rate | 240 kbps |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution eligibility for the SP232AEN-L is determined by the following core parameters:
Critical Parameters (Must Match):
- Protocol: RS232
- Number of Drivers/Receivers: 2/2
- Duplex: Full
- Voltage - Supply: 4.5V ~ 5.5V
- Mounting Type: Surface Mount
- Package / Case: 16-SOIC (0.154", 3.90mm Width)
Flexible Parameters (Allow Variation):
- Operating Temperature Range: May extend beyond 0°C ~ 70°C
- Data Rate: May exceed 240 kbps
- Receiver Hysteresis: May differ from 500 mV
- Packaging Format: Tube, Cut Tape (CT) & Digi-Reel®, or Digi-Reel® variants
- RoHS Status: RoHS Compliant or ROHS3 Compliant acceptable
- MSL Rating: May differ
Substitute parts are grouped into three categories: Parametric Equivalents (MaxLinear SP-series variants), Direct Manufacturer Alternatives (STMicroelectronics), and Manufacturer-Recommended Alternatives (Analog Devices ADM202 series).
Parameter Comparison
| Part Number | Manufacturer | Protocol | Drivers/Receivers | Data Rate | Receiver Hysteresis | Operating Temp | Package | RoHS Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|
| SP232AEN-L | MaxLinear, Inc. | RS232 | 2/2 | 240 kbps | 500 mV | 0°C ~ 70°C | 16-SOIC | RoHS Compliant | 17,191 |
| SP202ECN-L | MaxLinear, Inc. | RS232 | 2/2 | 240 kbps | 500 mV | 0°C ~ 70°C | 16-SOIC | ROHS3 Compliant | 7,711 |
| SP232ACN-L | MaxLinear, Inc. | RS232 | 2/2 | 240 kbps | 500 mV | 0°C ~ 70°C | 16-SOIC | ROHS3 Compliant | 16,548 |
| SP232ECN-L | MaxLinear, Inc. | RS232 | 2/2 | 240 kbps | 500 mV | 0°C ~ 70°C | 16-SOIC | ROHS3 Compliant | 21,200 |
| ST232ABDR | STMicroelectronics | RS232 | 2/2 | 400 kbps | 500 mV | -40°C ~ 85°C | 16-SOIC | ROHS3 Compliant | 17,600 |
| ADM202EARNZ | Analog Devices Inc. | RS232 | 2/2 | 230 kbps | 650 mV | -40°C ~ 85°C | 16-SOIC | ROHS3 Compliant | 7,155 |
| ADM202EARNZ-REEL | Analog Devices Inc. | RS232 | 2/2 | 230 kbps | 650 mV | -40°C ~ 85°C | 16-SOIC | ROHS3 Compliant | 22,200 |
| ADM202EARNZ-REEL7 | Analog Devices Inc. | RS232 | 2/2 | 230 kbps | 650 mV | -40°C ~ 85°C | 16-SOIC | ROHS3 Compliant | 50,300 |
| ADM202JRNZ | Analog Devices Inc. | RS232 | 2/2 | — | 400 mV | 0°C ~ 70°C | 16-SOIC | ROHS3 Compliant | 2,287 |
| ADM202JRNZ-REEL | Analog Devices Inc. | RS232 | 2/2 | — | 400 mV | 0°C ~ 70°C | 16-SOIC | ROHS3 Compliant | 3,408 |
| ADM202JRNZ-REEL7 | Analog Devices Inc. | RS232 | 2/2 | — | 400 mV | 0°C ~ 70°C | 16-SOIC | ROHS3 Compliant | 3,280 |
Engineering Selection Recommendations
MaxLinear SP-Series Parametric Equivalents (SP202ECN-L, SP232ACN-L, SP232ECN-L): These parts maintain identical electrical specifications to the SP232AEN-L while offering ROHS3 Compliant status and alternative packaging formats (Tube). SP232ECN-L provides the highest inventory availability at 21,200 units. Selection among these variants depends on packaging requirements and supply chain preferences.
STMicroelectronics ST232ABDR: This part offers extended operating temperature range (-40°C ~ 85°C) and higher data rate capability (400 kbps) compared to the SP232AEN-L. It maintains 500 mV receiver hysteresis and ROHS3 Compliance. Selection is appropriate for applications requiring wider temperature operation or higher throughput.
Analog Devices ADM202 Series: The ADM202EARNZ, ADM202EARNZ-REEL, and ADM202EARNZ-REEL7 variants provide extended operating temperature (-40°C ~ 85°C), higher receiver hysteresis (650 mV), and MSL rating of 1 (Unlimited). The REEL7 variant offers the highest inventory (50,300 units). ADM202JRNZ variants match the SP232AEN-L operating temperature (0°C ~ 70°C) with lower receiver hysteresis (400 mV) and MSL rating of 1. All ADM202 parts carry ROHS3 Compliance and REACH Unaffected status.
Frequently Asked Questions (FAQ)
Q: Can SP202ECN-L, SP232ACN-L, or SP232ECN-L be used as direct replacements for SP232AEN-L?
A: Yes. These MaxLinear variants maintain identical electrical performance (240 kbps data rate, 500 mV receiver hysteresis, 0°C ~ 70°C operating temperature, 2/2 full-duplex RS232 configuration) and 16-SOIC packaging. Differences are limited to packaging format (Tube vs. standard) and RoHS certification level (ROHS3 vs. RoHS Compliant). Functional compatibility is confirmed.
Q: What are the key differences between ST232ABDR and SP232AEN-L?
A: ST232ABDR extends the operating temperature range to -40°C ~ 85°C and supports higher data rates (400 kbps vs. 240 kbps). Receiver hysteresis remains at 500 mV. Both use 16-SOIC packaging. Selection of ST232ABDR is appropriate for applications requiring wider temperature operation or higher communication speeds.
Q: How do ADM202EARNZ variants differ from ADM202JRNZ variants?
A: ADM202EARNZ variants support extended operating temperature (-40°C ~ 85°C) and higher data rates (230 kbps) with 650 mV receiver hysteresis. ADM202JRNZ variants match the SP232AEN-L operating temperature range (0°C ~ 70°C) with lower receiver hysteresis (400 mV) and unspecified data rate. Both share MSL rating of 1 (Unlimited) and ROHS3 Compliance. Selection depends on temperature and hysteresis requirements.
Q: What is the significance of packaging variants (Tube, Cut Tape & Digi-Reel®, Digi-Reel7)?
A: Packaging format affects handling, storage, and automated assembly compatibility. Tube packaging suits manual assembly or lower-volume applications. Cut Tape (CT) & Digi-Reel® and Digi-Reel7 variants are optimized for high-speed automated pick-and-place equipment. Electrical performance is identical across packaging variants of the same part number.
Q: Are all substitute parts RoHS compliant?
A: Yes. The SP232AEN-L is RoHS Compliant. All listed substitute parts carry either RoHS Compliant or ROHS3 Compliant status, confirming compliance with hazardous substance restrictions. ADM202 series parts additionally carry REACH Unaffected status.
Q: Which substitute offers the highest inventory availability?
A: ADM202EARNZ-REEL7 provides the highest inventory at 50,300 units, followed by SP232ECN-L at 21,200 units and ST232ABDR at 17,600 units. Inventory levels support supply chain planning and lead-time mitigation.
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