TA550D

TL16C550D, TL16C550DI www.ti.com .................................................................................................................................................. SLLS597E – APRIL 2004 – REVISED DECEMBER 2008 ASYNCHRONOUS COMMUNICATIONS ELEMENT WITH AUTOFLOW CONTROL FEATURES 1 Programmable Auto-RTS and Auto-CTS In Auto-CTS Mode, CTS Controls Transmitter In Auto-RTS Mode, RCV FIFO Contents and Threshold Control RTS Serial and Modem Control Outputs Drive a RJ11 Cable Directly When Equipment Is on the Same Power Drop Capable of Running With All Existing TL16C450 Software After Reset, All Registers Are Identical to the TL16C450 Register Set Up to 24-MHz Clock Rate for up to 1.5-Mbaud Operation With VCC = 5 V Up to 20-MHz Clock Rate for up to 1.25-Mbaud Operation With VCC = 3.3 V Up to 48-MHz Clock Rate for up to 3-Mbaud Operation with VCC = 3.3 V (ZQS Package Only, Divisor = 1) Up to 40-MHz Clock Rate for up to 2.5-Mbaud Operation with VCC = 3.3 V (ZQS Package Only, Divisor ≥ 2) Up to 16-MHz Clock Rate for up to 1-Mbaud Operation With VCC = 2.5 V In the TL16C450 Mode, Hold and Shift Registers Eliminate the Need for Precise Synchronization Between the CPU and Serial Data Programmable Baud Rate Generator Allows Division of Any Input Reference Clock by 1 to (216 –1) and Generates an Internal 16× Clock Standard Asynchronous Communication Bits (Start, Stop, and Parity) Added to or Deleted From the Serial Data Stream 5-V, 3.3-V, and 2.5...