TL16C550DRHBR

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C550DRHBR is a single-channel Asynchronous Communications Element (ACE) manufactured by Texas Instruments, housed in a 32-pin RHB package. It supports 5-V, 3.3-V, and 2.5-V operation with a maximum data rate of 1.5 Mbaud at 5 V and up to 3 Mbaud at 3.3 V using the ZQS package clock rates. The device features 16-byte transmit and receive FIFOs with error status bits. It includes programmable baud rate generation, autoflow control, and independent interrupts.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Autoflow control mechanism utilizing auto-RTS and auto-CTS signals to manage serial data flow and reduce software overhead.
• Programmable baud rate generator capable of dividing reference clocks to support various standard asynchronous communication protocols.
• Integrated 16-byte transmit and receive FIFOs that buffer data and provide error status information for each byte.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Serial-to-parallel and parallel-to-serial data conversion between CPUs and peripheral devices or modems.
• Implementation of high-speed asynchronous communication links requiring reduced CPU intervention via interrupt systems.
• Integration into embedded systems where DMA signaling and hardware flow control are necessary for reliable data transfer.

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific ordering suffix DRHBR against the manufacturer's current product folder to confirm package type and availability. Ensure compatibility with existing system voltage levels and clock requirements before procurement. Cross-reference the datasheet revision date to confirm feature consistency.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a single UART channel with 16-byte FIFOs is required in a compact 32-pin surface-mount package. Consider the RHB pinout if certain bus signals like ADS or RD2 are not needed. Verify that the target application supports the required operating voltage range and clock frequencies specified in the electrical characteristics.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The TL16C550D series serves as an upgrade to the TL16C550C, offering higher speed capabilities while maintaining functional equivalence to the older TL16C450 on power-up. The RHB package provides a reduced pin count variant suitable for applications that do not require all modem control signals or external DMA outputs found in larger packages.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C550DIPTG4 is a functionally equivalent alternative available in a 48-pin LQFP package. When substituting, verify pin compatibility and ensure the host system can accommodate the different package footprint and signal availability.