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 is a Pb-free, RoHS-compliant variant of the ADM232AARN and is fully interchangeable in function, pinout, and electrical performance. The only meaningful distinction is package finish and environmental compliance, so the ADM232AARNZ can directly replace the ADM232AARN in existing designs without layout or firmware changes.
Function and Interface Type
High match
Pinout and Package
High match
Electrical Specifications
High match
Environmental Compliance
Validation required
Parts at a glance
Part B
ADM232AARNZ
ADI公司
- Lifecycle
- Active
- Stock
- 1649 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 | 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 | Both parts perform the same core interface function, enabling direct functional substitution. |
| Number of Drivers/Receivers | 2 drivers / 2 receivers | 2 drivers / 2 receivers | Channel count must match to preserve the serial interface topology of the design. |
| Supply Voltage | 5 V | 5 V | Operating voltage must match the system power rail for proper operation. |
| Data Rate | 200 kbps | 200 kbps | Maximum data rate must meet the application's serial communication speed requirements. |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | Footprint and package must match for PCB layout compatibility. |
| Mounting Type | Surface Mount | Surface Mount | Mounting style must match the assembly process and board design. |
| RoHS Compliance | RoHS Compliant (lead-free) | Non-RoHS (contains lead) | RoHS status affects regulatory compliance and solder process selection; the "Z" suffix denotes the lead-free variant. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Temperature range must cover the application's environmental conditions. |
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 | ADM232AARN | ADM232AARNZ |
|---|---|---|
| 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 and ADM232AARN?
The ADM232AARNZ is the RoHS-compliant, lead-free (Pb-free) version of the ADM232AARN. Both are dual RS-232 line drivers/receivers in an 16-lead SOIC package from Analog Devices, but the "Z" suffix denotes compliance with RoHS/lead-free requirements, while the non-Z version is the older leaded (Pb) variant.
Are ADM232AARNZ and ADM232AARN functionally interchangeable?
Yes, both devices share the same electrical function: dual RS-232 drivers and receivers with an internal charge pump, operating from a single +5 V supply. The functional behavior and pinout are identical; the difference is the package finish (lead-free vs. leaded).
Do ADM232AARNZ and ADM232AARN have the same pinout and package?
Yes. Both are offered in the same 16-lead SOIC (R-16) package with identical pin assignments. The "N" in the part number denotes the SOIC package, and the "R" denotes tape-and-reel or SOIC packaging per Analog Devices nomenclature.
Can ADM232AARN be replaced by ADM232AARNZ in an existing design?
Yes, ADM232AARNZ is a drop-in replacement for ADM232AARN in terms of form, fit, and function. The only difference is the lead-free/RoHS-compliant finish, which does not affect electrical performance or PCB footprint.
What supply voltage do ADM232AARNZ and ADM232AARN require?
Both devices operate from a single +5 V ±10% supply and generate the required RS-232 voltage levels internally via an on-chip dual charge pump, eliminating the need for a separate ±12 V supply.
Are ADM232AARNZ and ADM232AARN RoHS compliant?
ADM232AARNZ is RoHS compliant and lead-free (Pb-free). The ADM232AARN is the non-RoHS, leaded version. Designs requiring RoHS compliance should specify ADM232AARNZ.
What data rate do ADM232AARNZ and ADM232AARN support?
Both devices support RS-232 data rates up to 200 kbps, which is the specified maximum data rate for the ADM232A family per Analog Devices datasheet.
How many drivers and receivers do ADM232AARNZ and ADM232AARN integrate?
Each device integrates two RS-232 drivers and two RS-232 receivers, making them suitable for dual-channel serial interface applications such as connecting a UART to an RS-232 port.