Part A
AM26C31ID
STマイクロエレクトロニクス
- Lifecycle
- Active
- Stock
- 7351 個数
- Package
- SOIC-16
- Series
- インターフェース - ドライバ、レシーバ、トランシーバ
Replacement verdict
Compatible functional replacement candidate
The AM26C31ID and AM26C31IDRE4 are functionally equivalent quad differential line drivers sharing identical device specifications, with the only distinction being the tape-and-reel packaging option of the RE4 variant. Both parts are interchangeable for design-in purposes, and the RE4 suffix should be selected when automated reel-fed assembly is required.
Function and Logic Family
High match
Package and Pinout
High match
Electrical Specifications
High match
Packaging and Ordering Format
High match
Parts at a glance
Part B
AM26C31IDRE4
STマイクロエレクトロニクス
- Lifecycle
- Active
- Stock
- 9269 個数
- Package
- SOIC-16
- Series
- インターフェース - ドライバ、レシーバ、トランシーバ
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AM26C31ID | AM26C31IDRE4 | Why it matters |
|---|---|---|---|
| Function | Quadruple differential line driver | Quadruple differential line driver | Both parts perform the same core function, so they are functionally interchangeable in a circuit. |
| Number of Drivers | 4 | 4 | The driver count determines how many differential lines the device can drive simultaneously. |
| Supply Voltage Range | 4.5 V to 5.5 V | 4.5 V to 5.5 V | The supply range must match the system rail to ensure proper operation and signal integrity. |
| Output Type | Differential (3-state) | Differential (3-state) | Three-state differential outputs allow bus sharing and proper termination in multi-driver systems. |
| Data Rate | Up to 10 Mbps | Up to 10 Mbps | The maximum data rate must meet the signaling speed requirements of the application. |
| Operating Temperature Range | -40 °C to 85 °C | -40 °C to 85 °C | The temperature range must cover the environmental conditions of the target application. |
| Package / Mounting | SOIC-16, surface mount | SOIC-16, surface mount | Package and mounting style must match the PCB footprint for a drop-in replacement. |
| Packaging / Reel Option | Tube / standard packaging | Tape and reel (R suffix) | The RE4 suffix indicates tape-and-reel packaging, which affects automated assembly handling but not electrical function. |
| RoHS Compliance | RoHS compliant | RoHS compliant | RoHS compliance is required for many markets and ensures lead-free construction. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AM26C31ID | AM26C31IDRE4 |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Discontinued at Digi-Key |
| Type | Driver | Driver |
| Number of Drivers/Receivers | 4/0 | 4/0 |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between the AM26C31ID and the AM26C31IDRE4?
The AM26C31ID and AM26C31IDRE4 are functionally identical quad differential line drivers from Texas Instruments. The primary difference is the ordering and packaging designation: the AM26C31ID is supplied in standard tube packaging, while the AM26C31IDRE4 suffix indicates tape-and-reel packaging (the "R" denotes reel, and "E4" denotes Pb-free/RoHS-compliant construction). Both share the same die, electrical specifications, and SOIC-16 (D) package.
Are the AM26C31ID and AM26C31IDRE4 electrically interchangeable?
Yes. Both devices are the same quad differential line driver with identical electrical characteristics, including supply voltage range of 4.5 V to 5.5 V, differential output drive, and TIA/EIA-422-B and ITU-T V.11 compliance. Because they share the same silicon and package type, they are electrically interchangeable in a given design.
What package do the AM26C31ID and AM26C31IDRE4 use?
Both parts are offered in the 16-pin SOIC (D) package. The AM26C31ID is typically shipped in tubes, while the AM26C31IDRE4 is shipped in tape-and-reel format for automated pick-and-place assembly. The package footprint and pinout are identical between the two orderable part numbers.
Do the AM26C31ID and AM26C31IDRE4 differ in RoHS or lead-free status?
The AM26C31IDRE4 carries the "E4" suffix, which designates Pb-free (RoHS-compliant) construction per Texas Instruments ordering conventions. Designers should confirm the specific RoHS status of the AM26C31ID variant against the manufacturer's current datasheet and product page, as the base part number may be available in both leaded and Pb-free versions depending on the orderable suffix.
What is the function of the AM26C31 family devices?
The AM26C31 devices are quad differential line drivers designed for digital data transmission over balanced lines. They are compliant with TIA/EIA-422-B and ITU-T V.11 standards and are commonly used for RS-422 communication, industrial control, and point-to-point data links. Each device contains four independent drivers with three-state outputs.
Can the AM26C31IDRE4 be substituted for the AM26C31ID in an existing design?
Yes, provided the assembly process can accommodate tape-and-reel packaging. Since both orderable part numbers share the same die, package, pinout, and electrical specifications, the AM26C31IDRE4 is a direct functional substitute for the AM26C31ID. The substitution affects only the packaging format and, where applicable, the Pb-free/RoHS designation.
What supply voltage and temperature range do these devices support?
Both the AM26C31ID and AM26C31IDRE4 operate from a single 5 V supply (4.5 V to 5.5 V) and are specified for the industrial temperature range of -40°C to +85°C, consistent with the "I" suffix in the part number. Designers should verify these parameters against the current Texas Instruments datasheet for the specific orderable part.