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Product Detailed Parameters
- Description：RF POWER TRANSISTOR
- Series：-
- Mfr：Microsemi Corporation
- Package：Bulk
- Transistor Type：-
- Voltage - Collector Emitter Breakdown (Max)：-
- Frequency - Transition：-
- Noise Figure (dB Typ @ f)：-
- Gain：-
- Power - Max：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：-
- Current - Collector (Ic) (Max)：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The MS2321A is a single-channel RS-232 transceiver manufactured by Microsemi Corporation. It integrates a charge pump to generate the required positive and negative supply voltages from a single 5V power source, eliminating the need for external dual supplies. The device features one driver with an output voltage swing of ±6V and one receiver with a typical threshold of ±0.2V. It supports data rates up to 120 kbps and includes ESD protection compliant with IEC 61000-4-2 Level 4 standards. The component is available in multiple package options including SOIC-8 and TSSOP-8.
Feature Summary
- Integrated charge pump eliminates requirement for external dual-voltage power supplies
- High electrostatic discharge (ESD) protection capability on all pins
- Single-supply operation simplifies system design and reduces component count
Applications
- Industrial control systems requiring robust serial communication
- Medical equipment interfaces needing high ESD immunity
- Telecommunications terminal equipment
Procurement Notes
Verify the specific suffix code on the component marking to confirm the exact package type and temperature range variant. Ensure the ordering information matches the required RoHS compliance status and lead time specifications provided by the authorized distributor or manufacturer representative at the time of purchase.
Selection Notes
Select this component when a single 5V supply is available and only one full-duplex RS-232 channel is needed. Compare pin compatibility with legacy MAX232 designs if replacing existing circuits. Verify that the 120 kbps data rate meets the application requirements and that the package footprint fits the PCB layout constraints.
Part Context
This part belongs to the Microsemi RS-232 transceiver family, which provides reliable serial communication solutions. It serves as a bridge between low-voltage microcontrollers and standard RS-232 ports. The series is known for integrating protection features directly into the transceiver die to enhance system reliability in noisy environments.
Replacement Considerations
Cross-reference with industry-standard equivalents such as the MAX232 or SP232E for pin-compatible replacements. Verify that substitute parts offer similar ESD protection levels and operate within the same single-supply voltage range to ensure functional interchangeability without circuit modification.
FAQ
What is the maximum data rate supported by the MS2321A?
The MS2321A supports data rates up to 120 kbps.
Does the MS2321A require external capacitors for the charge pump?
Yes, external capacitors are required to connect to the charge pump terminals to generate the internal ±10V supplies from the single 5V input.
What is the ESD protection rating of the MS2321A?
The device provides ESD protection exceeding ±15kV according to the Human Body Model (HBM) and complies with IEC 61000-4-2 Level 4 standards.
