Part A
ADM232AARNZ
ADI公司
- Lifecycle
- Active
- Stock
- 1649 件
- Package
- SOIC-16
- Series
- 介面-驅動器、接收器、收發器
Replacement verdict
Compatible functional replacement candidate
The ADM232AARNZ and ADM232AARN-REEL7 are functionally identical RS-232 transceivers from the same manufacturer, differing only in packaging format (tube vs. tape-and-reel). Both share the same die, pinout, electrical specifications, and temperature range, making them fully interchangeable for design and production purposes. The REEL7 variant is simply the tape-and-reel packaging option suited for automated assembly lines.
Function and Protocol
High match
Pinout and Package
High match
Electrical Specifications
High match
Operating Temperature Range
High match
Parts at a glance
Part B
ADM232AARN-REEL7
ADI公司
- Lifecycle
- Active
- Stock
- 8272 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 | ADM232AARNZ | ADM232AARN-REEL7 | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures identical design, process, and quality standards. |
| Function / Interface Type | Dual RS-232 line driver/receiver | Dual RS-232 line driver/receiver | Both provide the same RS-232 transceiver function, so they are functionally interchangeable. |
| Number of Drivers / Receivers | 2 drivers / 2 receivers | 2 drivers / 2 receivers | Channel count must match for the part to serve the same interface role in a design. |
| Supply Voltage | 5 V (single supply) | 5 V (single supply) | Operating voltage must match the system rail for direct substitution. |
| Package / Case | 16-SOIC (0.154", 3.90mm width) | 16-SOIC (0.154", 3.90mm width) | Identical package footprint allows drop-in board replacement without layout changes. |
| Mounting Type | Surface Mount | Surface Mount | Same mounting style is required for compatibility with the PCB assembly process. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Matching temperature ratings ensure equivalent reliability across the same environments. |
| Packaging / Delivery Form | Tube | Tape & Reel | Packaging differs for automated vs. manual assembly; the electrical part is the same but handling and reflow feeding differ. |
| Ordering Part Number Suffix | Z (lead-free/RoHS-compliant) | REEL7 (reel packaging) | Suffix indicates packaging and compliance differences that affect procurement and assembly, not device function. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADM232AARNZ | ADM232AARN-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Type | Transceiver | Transceiver |
| Protocol | RS232 | RS232 |
| Number of Drivers/Receivers | 2/2 | 2/2 |
| Duplex | Full | Full |
| Receiver Hysteresis | 400 mV | 400 mV |
| Data Rate | 200kbps | 200kbps |
| 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 ADM232AARNZ and ADM232AARN-REEL7?
Both are the same ADM232A RS-232 transceiver die in a 16-lead narrow SOIC (R-16) package. The ADM232AARNZ is supplied in tube packaging, while ADM232AARN-REEL7 is supplied on a 7-inch tape-and-reel for automated assembly. The "Z" suffix on ADM232AARNZ denotes RoHS-compliant lead-free construction; the reel variant is also RoHS-compliant. Electrical performance is identical between the two order codes.
Are ADM232AARNZ and ADM232AARN-REEL7 electrically and functionally interchangeable?
Yes. Both order codes share the same silicon, pinout, and specified parameters: dual RS-232 drivers and receivers, 5 V single-supply operation, and a 16-lead narrow SOIC package. The only difference is the shipping form (tube vs. 7-inch tape-and-reel), so they are interchangeable in a given design provided the assembly process matches the packaging.
What are the key RS-232 specifications of the ADM232A?
The ADM232A is a dual RS-232 driver/receiver that operates from a single 5 V supply and generates the required RS-232 voltage levels using on-chip charge pumps. It provides two drivers and two receivers in a 16-lead narrow SOIC package. Designers should confirm exact data-rate, slew-rate, and capacitor-value requirements against the Analog Devices ADM232A datasheet for the specific grade.
Which package do ADM232AARNZ and ADM232AARN-REEL7 use?
Both parts are offered in the 16-lead narrow SOIC (R-16) package, which is a surface-mount body approximately 3.9 mm wide. The "N" in the order code designates the narrow SOIC package, and the "Z" designates RoHS-compliant lead-free finish.
Why would a designer choose the REEL7 version over the tube version?
The ADM232AARN-REEL7 is supplied on a 7-inch tape-and-reel, which is compatible with automated pick-and-place assembly lines and is the preferred format for high-volume SMT production. The ADM232AARNZ tube format is typically used for prototyping, low-volume runs, or manual assembly.
Do ADM232AARNZ and ADM232AARN-REEL7 differ in RoHS or lead-free status?
No. The "Z" suffix in both order codes indicates RoHS-compliant, lead-free construction per Analog Devices ordering conventions. Both variants meet the same environmental compliance requirements; the reel suffix only describes packaging.
Can ADM232AARNZ and ADM232AARN-REEL7 be used in the same PCB footprint?
Yes. Because both order codes use the identical 16-lead narrow SOIC (R-16) package and pinout, they share the same PCB land pattern. A board designed for one will accept the other without layout changes.
What should be verified before substituting one order code for the other in production?
Confirm that the assembly line supports the selected packaging (tube vs. 7-inch tape-and-reel), verify the moisture sensitivity level and reflow profile against the Analog Devices datasheet, and ensure the chosen order code is active and available from authorized distributors. Electrical and footprint compatibility is otherwise identical.