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Product Detailed Parameters
- Description：PLUG AND PLAY UART
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Core Processor：-
- Number of Cores/Bus Width：-
- Speed：-
- Co-Processors/DSP：-
- RAM Controllers：-
- Graphics Acceleration：-
- Display & Interface Controllers：-
- Ethernet：-
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- USB：-
- Voltage - I/O：-
- Operating Temperature：-
- Security Features：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
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Overview
The TL16PNP550AFN is a single-channel Universal Asynchronous Receiver/Transmitter (UART) manufactured by Texas Instruments. It operates within a supply voltage range of 3V to 5.25V and supports data rates up to 1MBd. The device features integrated 16-byte transmit and receive FIFOs with corresponding counters. It is housed in a 68-pin Plastic Quad Flat Package (PLCC) with dimensions of approximately 16mm x 16mm x 3.4mm. The component functions as a serial I/O controller compatible with CMOS logic levels.
Feature Summary
- Integrates 16-byte transmit and receive FIFO buffers for efficient data handling
- Supports baud rates up to 1 megabaud for high-speed serial communication
- Operates on a single 3V to 5.25V power supply
- Provides full UART functionality including modem control signals
Applications
- Industrial serial communication interfaces
- Embedded system data logging
- Modem interface circuits
- Point-to-point serial links
Procurement Notes
Verify the specific suffix 'AFN' against the official Texas Instruments datasheet to confirm pinout and electrical characteristics, as suffixes often denote package type or temperature grade. Confirm RoHS compliance status if required for your assembly process. Check current availability as this part may be discontinued or limited in stock. Ensure the PLCC68 footprint matches your PCB design constraints before ordering.
Selection Notes
Select this component when a single UART channel with moderate FIFO depth is required. It is suitable for applications needing baud rates up to 1MBd. Consider the PLCC68 package size relative to available board space. Compare against other TL16C550 variants if different packaging or higher integration is needed. Verify voltage compatibility with the host system logic levels.
Part Context
This part belongs to the TL16C550 family of UARTs from Texas Instruments. These devices are designed to provide asynchronous serial communication capabilities. The TL16PNP550AFN specifically utilizes a PLCC68 package. It serves as a drop-in replacement for older 16450 or 16550 UARTs but offers enhanced FIFO performance. It is commonly used in legacy system upgrades or industrial control panels.
Replacement Considerations
Direct substitutes include the TL16C550CIPTR or TL16C550CN in different packages. Verify register compatibility and pin assignments before swapping. The TL16C550B series may offer improved specifications. Ensure the replacement supports the same 3V-5.25V operating range.
