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AM26C31IPW Equivalent & Substitute Parts
Part Overview
The AM26C31IPW is a 4/0 Driver interface IC manufactured by Texas Instruments in a 16-TSSOP surface mount package. This component is classified as Last Time Buy, indicating discontinued production with limited inventory availability. The part operates within a 4.5V to 5.5V supply voltage range and supports operating temperatures from -40°C to 85°C. Due to its Last Time Buy status, identifying functionally equivalent substitute parts is essential for design continuity and long-term component sourcing strategy.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | AM26C31IPW |
| Manufacturer | Texas Instruments |
| Category | Interface |
| Type | Driver |
| Number of Drivers/Receivers | 4/0 |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Last Time Buy |
Substitute Part Grouping Explanation
Substitution eligibility for the AM26C31IPW is determined by the following critical parameters:
Primary Compatibility Criteria:
- Package / Case: 16-TSSOP (0.173", 4.40mm Width) — identical footprint required for PCB compatibility
- Number of Drivers/Receivers: 4/0 — functional configuration must match
- Mounting Type: Surface Mount — assembly process compatibility
- RoHS Status: ROHS3 Compliant — regulatory requirement
Secondary Compatibility Criteria:
- Voltage - Supply: Minimum 4.5V support required (substitutes may support wider ranges)
- Operating Temperature: Minimum -40°C to 85°C range required
- Type: Driver — functional classification
Substitute parts are grouped into two categories based on voltage supply range compatibility:
Category A — Direct Voltage Range Match (4.5V ~ 5.5V):
- AM26C31IPWR (Texas Instruments) — identical electrical specifications, alternative packaging
Category B — Extended Voltage Range (3V ~ 5.5V):
- ISL32172EFVZ, ISL32172EFVZ-T, ISL32172EIVZ, ISL32172EIVZ-T (Renesas Electronics Corporation)
- ISL32272EFVZ, ISL32272EFVZ-T (Renesas Electronics Corporation)
- ST26C31BTR (STMicroelectronics)
All substitute parts maintain identical package geometry, driver/receiver configuration, and surface mount assembly requirements.
Parameter Comparison
| Parameter | AM26C31IPW | AM26C31IPWR | ISL32172EFVZ | ISL32172EIVZ | ISL32272EFVZ | ST26C31BTR |
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Renesas Electronics | Renesas Electronics | Renesas Electronics | STMicroelectronics |
| Number of Drivers/Receivers | 4/0 | 4/0 | 4/0 | 4/0 | 4/0 | 4/0 |
| Package / Case | 16-TSSOP | 16-TSSOP | 16-TSSOP | 16-TSSOP | 16-TSSOP | 16-TSSOP |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL | 1 (Unlimited) | 1 (Unlimited) | 2 (1 Year) | 2 (1 Year) | 2 (1 Year) | 1 (Unlimited) |
| Product Status | Last Time Buy | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
Primary Recommendation: AM26C31IPWR
The AM26C31IPWR is the direct equivalent substitute for AM26C31IPW. Both parts are manufactured by Texas Instruments with identical electrical specifications (4.5V ~ 5.5V supply, -40°C ~ 85°C operating range) and package configuration. The primary difference is packaging format: AM26C31IPW is supplied in Tube packaging, while AM26C31IPWR is available in Cut Tape (CT) & Digi-Reel® format. This part maintains Active product status with 5400 units in stock, providing immediate availability and long-term supply continuity.
Secondary Recommendations: Renesas ISL32172 and ISL32272 Series
The ISL32172EFVZ, ISL32172EFVZ-T, ISL32172EIVZ, and ISL32172EIVZ-T parts are functionally compatible substitutes with extended voltage range (3V ~ 5.5V) and enhanced operating temperature range (-40°C ~ 125°C). These parts support RS422 and RS485 protocols with 32Mbps data rate capability. The ISL32272 variants operate at 10Mbps data rate with identical voltage and temperature specifications. All Renesas parts maintain ROHS3 compliance and Active product status. Moisture sensitivity level is MSL 2 (1 Year) compared to MSL 1 for the original part.
Tertiary Recommendation: ST26C31BTR
The ST26C31BTR from STMicroelectronics provides an alternative substitute with matching voltage supply range (4.5V ~ 5.5V) and operating temperature (-40°C ~ 85°C). This part supports RS422 and RS485 protocols and maintains ROHS3 compliance with MSL 1 rating. Product status is Active with 1444 units in stock.
Selection Criteria:
- For immediate drop-in replacement with identical specifications: Select AM26C31IPWR
- For extended temperature range applications: Select ISL32172 or ISL32272 series
- For alternative manufacturer sourcing: Select ST26C31BTR
Frequently Asked Questions (FAQ)
Q: Can AM26C31IPWR be used as a direct replacement for AM26C31IPW?
A: Yes. Both parts are manufactured by Texas Instruments with identical electrical specifications, package geometry, and functional configuration. The only difference is packaging format (Tube vs. Cut Tape & Digi-Reel®). PCB design, schematic, and assembly processes require no modification.
Q: What is the difference between ISL32172 and ISL32272 variants?
A: Both series are manufactured by Renesas Electronics with identical package, voltage, and temperature specifications. The primary difference is data rate: ISL32172 supports 32Mbps, while ISL32272 supports 10Mbps. Select based on application bandwidth requirements.
Q: Are Renesas ISL32172 parts compatible with the original AM26C31IPW design?
A: Electrical and mechanical compatibility is confirmed for the 16-TSSOP package and 4/0 driver/receiver configuration. However, Renesas parts support extended voltage range (3V ~ 5.5V) and operating temperature (-40°C ~ 125°C), plus RS422/RS485 protocol support. Moisture sensitivity level is MSL 2 (1 Year) versus MSL 1 (Unlimited) for the original part. Verify application requirements before selection.
Q: What does MSL 2 (1 Year) mean compared to MSL 1 (Unlimited)?
A: MSL (Moisture Sensitivity Level) indicates component sensitivity to moisture absorption during storage. MSL 1 (Unlimited) allows indefinite shelf storage without special handling. MSL 2 (1 Year) requires controlled storage conditions and limits shelf life to one year from manufacturing date. Verify storage and handling procedures if selecting Renesas or STMicroelectronics alternatives.
Q: Can I use ST26C31BTR as a substitute?
A: Yes. The ST26C31BTR maintains identical voltage supply range (4.5V ~ 5.5V), operating temperature (-40°C ~ 85°C), and 16-TSSOP package configuration. It supports RS422 and RS485 protocols with ROHS3 compliance and MSL 1 rating. No design modifications are required for PCB or assembly.
Q: Which substitute part has the best inventory availability?
A: AM26C31IPWR has the highest inventory with 5400 units in stock. ISL32272EFVZ-T follows with 4278 units. All substitute parts maintain Active product status with confirmed availability.
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