Part A
AM26LS32AID
德州儀器
- Lifecycle
- Active
- Stock
- 1948 件
- Package
- SOIC-16
- Series
- 介面-驅動器、接收器、收發器
Replacement verdict
Compatible functional replacement candidate
The AM26LS32AID and AM26LS32ACDE4 are functionally equivalent quad differential line receivers from the same manufacturer family, sharing identical logic function, channel count, supply voltage range, and input sensitivity characteristics. Both devices are suitable for interchangeable use in RS-422, RS-423, and RS-485 receiver applications, with the primary distinction being package and ordering suffix rather than electrical performance.
Logic Function
High match
Channel Count
High match
Supply Voltage Range
High match
Package Type
Validation required
Parts at a glance
Part B
AM26LS32ACDE4
德州儀器
- Lifecycle
- Active
- Stock
- 9006 件
- Package
- SOIC-16
- Series
- 介面-驅動器、接收器、收發器
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AM26LS32AID | AM26LS32ACDE4 | Why it matters |
|---|---|---|---|
| Function | Quadruple differential line receiver | Quadruple differential line receiver | Both devices perform the same core function, so they are functionally interchangeable in RS-422/RS-423/RS-485 receive applications. |
| Number of Receivers | 4 | 4 | Matching receiver count ensures the same number of differential channels can be handled in a given design. |
| Supply Voltage (VCC) | 5 V (4.75 V to 5.25 V) | 5 V (4.75 V to 5.25 V) | Identical supply requirements mean the same power rail can be used without redesign. |
| Input Type | Differential | Differential | Differential inputs provide common-mode noise rejection, essential for reliable serial communication over long cables. |
| Output Type | 3-state (tri-state) | 3-state (tri-state) | Tri-state outputs allow multiple receivers to share a common bus without contention. |
| Operating Temperature Range | -40°C to +85°C | 0°C to +70°C | The industrial-grade temperature range of the AID version supports harsher environments, while the CDE4 version is limited to commercial temperatures. |
| Package / Mounting | SOIC-16 (surface mount) | SOIC-16 (surface mount) | Package and footprint compatibility determine whether the part can be dropped into the same PCB land pattern. |
| Qualification / Grade | Industrial grade | Commercial grade | Grade affects environmental robustness and suitability for industrial versus consumer applications. |
| RoHS Compliance | RoHS compliant | RoHS compliant | Both meet RoHS, so no compliance barrier exists for either part in regulated markets. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AM26LS32AID | AM26LS32ACDE4 |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Discontinued at Digi-Key |
| Type | Receiver | Receiver |
| Protocol | RS422, RS423 | RS422, RS423 |
| Number of Drivers/Receivers | 0/4 | 0/4 |
| Receiver Hysteresis | 50 mV | 50 mV |
| Voltage - Supply | 4.75V ~ 5.25V | 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the AM26LS32AID and AM26LS32ACDE4?
Both are quadruple differential line receivers from Texas Instruments designed for balanced or unbalanced digital data transmission. They are members of the AM26LS32A family, which meets the requirements of TIA/EIA-422-B and TIA/EIA-423-B, and are functionally equivalent to the AM26LS32 but with improved input sensitivity and input hysteresis.
What is the difference between the AM26LS32AID and AM26LS32ACDE4?
The primary difference is the package and temperature grade. The AM26LS32AID is supplied in a 16-pin SOIC (D) package specified over the -40°C to 85°C industrial temperature range. The AM26LS32ACDE4 is supplied in a 16-pin SOIC (D) package specified over the 0°C to 70°C commercial temperature range, with the "E4" suffix denoting Pb-free (RoHS-compliant) green molding compound. Both share the same electrical function and pinout.
Are the AM26LS32AID and AM26LS32ACDE4 pin-compatible?
Yes. Both devices use the standard 16-pin SOIC (D) package with identical pin assignments: four receiver inputs (A, B pairs), four receiver outputs, a common enable, and VCC/GND. They can be used on the same PCB land pattern, though the temperature grade and Pb-free status should be confirmed against the application requirements.
What supply voltage do these receivers require?
Both devices operate from a single 5 V nominal supply (VCC), with the datasheet specifying a recommended operating range of 4.75 V to 5.25 V. They are not specified for 3.3 V operation.
What input sensitivity and hysteresis do the AM26LS32AID and AM26LS32ACDE4 provide?
Per the Texas Instruments datasheet, both devices feature a maximum input sensitivity of ±200 mV over the common-mode range of -7 V to +7 V, and a typical input hysteresis of 50 mV. This improves noise immunity compared with the original AM26LS32.
Can the AM26LS32ACDE4 be substituted for the AM26LS32AID in an industrial application?
Not directly without validation. The AM26LS32ACDE4 is rated only for 0°C to 70°C, while the AM26LS32AID is rated for -40°C to 85°C. Substitution in an application that operates outside the commercial temperature range would exceed the AM26LS32ACDE4's specified limits and is not supported by the datasheet.
What output type do these receivers have, and are they tri-state capable?
Both devices provide 3-state (tri-state) outputs. Each receiver output can be placed in a high-impedance state via the common enable input, allowing the outputs to be connected to a shared bus. The outputs are TTL-compatible.
Do the AM26LS32AID and AM26LS32ACDE4 meet RoHS requirements?
The AM26LS32ACDE4 carries the "E4" suffix, which in Texas Instruments nomenclature indicates Pb-free (RoHS-compliant) construction. The AM26LS32AID is available in standard and Pb-free orderable variants; the specific orderable part number should be checked against the TI datasheet or product page to confirm RoHS status before use in a compliance-sensitive design.