Part A
ADM232AARN
ADI公司
- Lifecycle
- Active
- Stock
- 4204 件
- Package
- SOIC-16
- Series
- 介面-驅動器、接收器、收發器
Replacement verdict
Compatible functional replacement candidate
The ADM232AARNZ-REEL is a functionally compatible replacement candidate for the ADM232AARN, as both parts share the same RS-232 transceiver architecture, channel configuration, supply voltage range, and package footprint. The only material distinction is the REEL suffix, which denotes tape-and-reel packaging rather than a change in electrical or mechanical characteristics. Buyers should confirm reel quantity and packaging format against their assembly requirements before substituting.
Function and Protocol
High match
Channel Configuration
High match
Package and Footprint
High match
Packaging Format
Validation required
Parts at a glance
Part B
ADM232AARNZ-REEL
ADI公司
- Lifecycle
- Active
- Stock
- 6073 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-REEL | ADM232AARN | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures consistent design, documentation, and quality standards. |
| Function | Dual RS-232 line driver/receiver | Dual RS-232 line driver/receiver | Identical function confirms the parts are functionally interchangeable in RS-232 interface circuits. |
| Number of Drivers/Receivers | 2/2 | 2/2 | Matching driver/receiver counts ensure the same number of RS-232 channels are supported. |
| Supply Voltage | 5 V | 5 V | Same supply voltage means the parts can be used in the same power rail design without modification. |
| Data Rate | 200 kbps | 200 kbps | Identical data rate supports the same communication speed requirements. |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | Same package footprint allows drop-in PCB replacement without layout changes. |
| Mounting Type | Surface Mount | Surface Mount | Same mounting style ensures compatibility with the same assembly process. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Identical temperature range ensures equivalent environmental robustness. |
| Packaging | Tape & Reel (REEL) | Tube | Different packaging affects handling and assembly; tape & reel suits automated pick-and-place, while tubes suit manual or low-volume assembly. |
| Lead-Free / RoHS Status | Lead-free, RoHS compliant (Z suffix) | Contains lead, non-RoHS (no Z suffix) | RoHS compliance is critical for regulatory compliance and export to markets restricting lead content. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADM232AARN | ADM232AARNZ-REEL |
|---|---|---|
| Part Status | Obsolete | Active |
| 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-REEL and ADM232AARN?
Both are the same ADM232A RS-232 line driver/receiver in an 16-lead SOIC (R-16) package. The difference is packaging format: ADM232AARN is supplied in tube/rail form, while ADM232AARNZ-REEL is supplied on tape-and-reel for automated assembly. The "Z" suffix indicates RoHS-compliant lead-free construction.
Are ADM232AARNZ-REEL and ADM232AARN electrically and functionally identical?
Yes. Both devices share the same ADM232A die and datasheet specifications, including dual RS-232 drivers/receivers, on-chip charge pump, and 5 V single-supply operation. The only documented differences are the shipping container (reel vs. tube) and the RoHS-compliant "Z" designation on the reel variant.
Can ADM232AARNZ-REEL be used as a drop-in replacement for ADM232AARN?
Yes, provided the PCB assembly process accepts RoHS-compliant lead-free terminations. Both parts use the same 16-lead SOIC footprint and pinout, so no layout change is required. Verify solder profile compatibility with the lead-free finish before substituting in a non-RoHS process.
What package and pin count do these devices use?
Both ADM232AARNZ-REEL and ADM232AARN are offered in a 16-lead SOIC (R-16) package. Pinout and package dimensions are identical between the two ordering variants.
What supply voltage and interface standard do these parts support?
Both devices operate from a single 5 V supply and implement RS-232 line driver/receiver functions with an on-chip charge pump, per the Analog Devices ADM232A datasheet. They are intended for RS-232 communication interfaces in industrial and computing equipment.
Why would a design choose the REEL variant over the tube variant?
The REEL variant (ADM232AARNZ-REEL) is supplied on tape-and-reel, which is compatible with automated pick-and-place assembly lines and high-volume production. The tube variant (ADM232AARN) is typically used for low-volume, prototyping, or manual assembly where reel packaging is unnecessary.
Does the "Z" suffix affect electrical performance?
No. The "Z" suffix denotes RoHS-compliant, lead-free construction and does not change the electrical specifications of the ADM232A. Functional and parametric performance remains per the ADM232A datasheet for both ordering codes.