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UART Overview

UART Overview. TL16C550D Single Channel 16-byte FIFOs UART. Up to 1.5Mbps(5V), 1.25Mbps(3.3V) and 1Mbps(2.5V) operation TI Patented Programmable auto-RTS and auto-CTS 5mm x 5mm 32-pin QFN package and 48-pin QFP Programmable baud rate generator Independent clock for the receiver.

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UART Overview

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  1. UART Overview

  2. TL16C550DSingle Channel 16-byte FIFOs UART Up to 1.5Mbps(5V), 1.25Mbps(3.3V) and 1Mbps(2.5V) operation TI Patented Programmable auto-RTS and auto-CTS 5mm x 5mm 32-pin QFN package and 48-pin QFP Programmable baud rate generator Independent clock for the receiver P4P and functionally compatible to Industry Standard 16C550 function 16 byte FIFOs reduce CPU overhead Compatibility with high speed processors • Portable, battery powered designs • PDAs, MP3 players, Cellular Data Port • Gaming Systems • Point-of-Sale Terminal Features Benefits Applications 1 ku SRP = $1. 75 More Information

  3. TL16C752BDual Channel 64-byte FIFOs UART TI Patented Programmable auto-RTS and auto-CTS Xon/Xoff software flow control Up to 3 Mbps baud rate at 3.3V Programmable and selectable transmit and receive FIFO trigger levels 64 byte FIFOs significantly reduce CPU overhead Enhanced sleep mode Compatibility with high speed processors Telecommunication routers Handheld terminals Mobile Computing Factory Automation Features Benefits Applications 1 ku SRP = $3.10 More Information

  4. TL16C752CDual Channel 64-byte FIFOs UART TI Patented Programmable auto-RTS and auto-CTS Xon/Xoff software flow control 1.8V, 2.5V, 3.3V, and 5V operation Programmable and selectable transmit and receive FIFO trigger levels 64 byte FIFOs significantly reduce CPU overhead Enhanced sleep mode Compatibility with high speed processors Telecommunication routers Handheld terminals Mobile Computing Factory Automation Features Benefits Applications 1 ku SRP = $3.10 More Information

  5. TL16C754BQuad Channel 64-byte FIFOs UART Up to 3Mbps(5V) and 2Mbps(3.3V) operation TI Patented Programmable auto-RTS and auto-CTS Xon/Xoff software flow control Programmable and selectable transmit and receive FIFO trigger levels Pin compatible with SC16C754 and ST16C654(D) 64 byte FIFOs significantly reduce CPU overhead Compatibility with high speed processors Enhanced sleep mode Telecommunication routers Point-of-Sale terminals Factory Automation Data Concentrators Features Benefits Applications 1 ku SRP = $8.35 More Information

  6. TL16C754CQuad Channel 64-byte FIFOs UART Up to 3Mbps(5V) and 2Mbps(3.3V) operation TI Patented Programmable auto-RTS and auto-CTS Xon/Xoff software flow control Programmable and selectable transmit and receive FIFO trigger levels Pin compatible with SC16C754 and ST16C654(D) 64 byte FIFOs significantly reduce CPU overhead Compatibility with high speed processors Enhanced sleep mode Telecommunication routers Point-of-Sale terminals Factory Automation Data Concentrators Features Benefits Applications 1 ku SRP = $8.35 More Information

  7. TL16C2550Dual channel with 16-byte FIFOs UART • Up to 1.5Mbps(5V), 1.25Mbps(3.3V) and 1Mbps(2.5V) operation • Programmable auto-RTS and auto-CTS • Programmable baud rate generator • 5mm x 5mm 32-pin QFN (RHB) and 48-pin QFP Pin compatible with SC16C2550 and ST(XR)16C(L)2550 16 byte FIFOs reduce CPU overhead Board savings using 32-pin QFN pkg Point-of-Sale terminals Gaming terminals Portable applications Router control Cellular data Features Benefits Applications 1 ku SRP = $3.15 More Information

  8. TL16C2552Dual channel with 16-byte FIFOs UART • Up to 1.5Mbps(5V), 1.25Mbps(3.3V) and 1Mbps(2.5V) operation • Programmable auto-RTS and auto-CTS • Programmable baud rate generator • 5mm x 5mm 32-pin QFN (RHB) and 44-pin PLCC Pin compatible with SC16C2552 and ST(XR)16C(L)2552 16 byte FIFOs reduce CPU overhead Board savings using 32-pin QFN pkg Point-of-Sale terminals Gaming terminals Portable applications Router control Cellular data Features Benefits Applications 1 ku SRP = $3.15 More Information

  9. UART System Block Diagram UART (TL16C550D) RS-232 RS-485 LVDS RS-232 RS-485 LVDS UART (TL16C550C) • UARTs are useful in applications where a lower cost of connection is desired. • A UART takes a parallel data stream and funnels it down to a serial data stream at the transceiver end and then returns the data stream to a parallel signal at the receiver end. • This lowers the cost of connection by • Decreasing the number of transceivers that are necessary. • Enabling the connecting cable to be less costly and less bulky. • UARTs are useful in applications that require a bandwidth of 3 Mbps if a LVDS transceiver/receiver is used and a bandwidth of up to 500 kbps if a RS232 transceiver/receiver is used. UART (TL16C550D) RS - 232 UART SN75LV4737A) ( (TL16C550C) Serial Signal 8 bit parallel signal 8 bit parallel signal More Information

  10. What is a UART? Key Functions of a UART • Serial to Parallel Conversion • Buffering • Data Communication Baud Rate Generation • Communication Handshaking • Start/Stop Bits • Parity Generation End Equipments • Modem • PC Com Port -- Serial Port • Telecom • Factory Automation and Process Control • Point of Sales Systems • Gaming Terminals • Network Management • Other - parallel-to-serial and serial-to-parallel data conversion/transmission More Information

  11. UART Selection Guide More Information

  12. UART Roadmap Legend RTP’d Phase 1 2005 Phase 2 2006 Phase 3 2007 8 TL16C758 TL28L198 TL28L194 TL16C754C TL28C94 4 TL16C554B TL16C754B TL16C554A # of Channels TL28L92 TL16C752C TL16C2552 2 TL16C452 TL28C92 TL16C2550 TL16C752B TL16C552A TL28L91 TL16C750A TL16C550D w/TQFP & QFN 1 TL16C450 TL16C750 TL16C550C 8 Byte No FIFO 16 Byte 64 Byte FIFO Memory Size More Information

  13. Competitive Cross Reference

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