DS89C21TM
- Mfr.Part #
- DS89C21TM
- Manufacturer
- National Semiconductor
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC TRANSCEIVER FULL 1/1 8SOIC
- Stock
- 38,055
- In Stock :
- 38,055
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- Manufacturer :
- National Semiconductor
- Product Category :
- Drivers, Receivers, Transceivers
- Duplex :
- Full
- Type :
- Transceiver
- Mounting Type :
- Surface Mount
- Packaging :
- Tube
- Receiver Hysteresis :
- 50mV
- Operating Temperature :
- -40°C~85°C
- Data Rate :
- 20Mbps
- Supplier Device Package :
- 8-SOIC
- RoHS Status :
- Non-RoHS Compliant
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Number of Drivers/Receivers :
- 1/1
- Voltage - Supply :
- 4.5V~5.5V
- Protocol :
- RS422, RS485
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- Datasheets
- DS89C21TM

Drivers, Receivers, Transceivers National Semiconductor DS89C21TM Overview
The National Semiconductor DS89C21TM is a high-performance, full-duplex transceiver designed to meet the rigorous demands of integrated communication environments. This component, enclosed in a compact 8SOIC package, excels in facilitating seamless data transmission and reception over a single communication line. Its ability to operate as both a transmitter and receiver makes it an invaluable part of any communication protocol, particularly in industrial and commercial applications where reliability and efficiency are crucial. The DS89C21TM ensures stable operation with its robust design and advanced technology, offering an optimal solution for handling high-speed data interfaces with minimal error rates.
DS89C21TM Features
The DS89C21TM transceiver boasts a series of features designed to enhance its performance and reliability in various applications. These include full-duplex communication capability, which allows simultaneous sending and receiving of signals, effectively doubling the throughput without additional line requirements. The device is optimized for low-power consumption and features robust electrostatic discharge (ESD) protection, ensuring durability and stable performance under challenging conditions. Its small form factor (8SOIC) facilitates easy integration into existing designs without requiring significant board space.
DS89C21TM Applications
- Industrial Automation: The DS89C21TM is used in PLC systems to facilitate reliable data exchange between sensors, actuators, and control units, enhancing operational efficiency and precision.
- Networking Equipment: Ideal for use in routers and switches, this transceiver ensures efficient data handling and high-speed communication essential for network reliability and performance.
- Data Communication Systems: In data centers and server farms, the DS89C21TM provides the necessary resilience and speed for critical data transmission tasks, supporting robust data integrity and accessibility.
- Telecommunication Interfaces: This component supports telecommunication standards, making it suitable for applications requiring high-speed data transfers, such as frame relay interfaces and multiplexed systems.
- Consumer Electronics: Utilized in home entertainment systems and high-end audio/visual equipment, the DS89C21TM facilitates smooth and uninterrupted signal transmission, enhancing user experience.
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