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Product Detailed Parameters
- Description：IC UART CMOS QUAD 68PLCC
- Series：-
- Mfr：MaxLinear, Inc.
- Package：Tube
- Features：Internal Oscillator, Timer/Counter
- Number of Channels：4, QUART
- FIFO's：-
- Protocol：-
- Data Rate (Max)：1Mbps
- Voltage - Supply：5V
- With Auto Flow Control：-
- With IrDA Encoder/Decoder：-
- With False Start Bit Detection：-
- With Modem Control：-
- Mounting Type：Surface Mount
- Package / Case：68-LCC (J-Lead)
- Supplier Device Package：68-PLCC (24.23x24.23)
- Grade：-
- Qualification：-
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Overview
The XR82C684CJ-F is a quad-channel Universal Asynchronous Receiver/Transmitter (UART) interface integrated circuit manufactured by MaxLinear. It operates within a supply voltage range of 4.75 V to 5.25 V, with a typical operating voltage of 5 V. The device supports data rates up to 1 Mb/s and features 3 bytes of transmit and receive FIFO storage per channel. It is housed in a PLCC-44 surface-mount package and functions reliably across an industrial temperature range from -40°C to +85°C. The component draws approximately 15 mA of operating current.
Feature Summary
- Integrates four fully independent full-duplex asynchronous communication channels
- Supports both Intel and Motorola bus protocols for flexible system integration
- Includes small FIFO buffers to reduce CPU overhead during serial data transfers
Applications
- Industrial control systems requiring multiple serial ports
- Telecommunications equipment interfaces
- Embedded computer systems with legacy UART requirements
Procurement Notes
This component is officially listed as End-of-Life (EOL) by the manufacturer. Availability is restricted, and sourcing may involve limited stock or secondary market suppliers. Engineers should verify the authenticity of available units and review Product Change Notices (PCN) regarding discontinuation details before procurement planning.
Selection Notes
Designers should consider this part only for maintenance or existing production runs due to its discontinued status. For new designs, evaluate alternative MaxLinear VLIO UART series that offer higher performance, larger FIFO depths, or broader voltage compatibility to ensure long-term supply chain stability.
Part Context
The XR82C684CJ-F belongs to the XR82C684 series of quad UART controllers. This family provides standard RS-232 compatible serial communication capabilities. The CJ suffix typically denotes the commercial/industrial temperature grade and PLCC packaging variant within the broader product line.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the EOL status, direct pin-to-pin replacements must be verified against specific application requirements and updated datasheets.
