特性

• 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 V_CC = 5 V
• Up to 20-MHz Clock Rate for up to 1.25-Mbaud
  Operation With V_CC = 3.3 V
• Up to 48-MHz Clock Rate for up to 3-Mbaud
  Operation with V_CC = 3.3 V (ZQS Package Only,
  Divisor = 1)
• Up to 40-MHz Clock Rate for up to 2.5-Mbaud
  Operation with V_CC = 3.3 V (ZQS Package Only,
  Divisor ≥ 2)
• Up to 16-MHz Clock Rate for up to 1-Mbaud
  Operation With V_CC = 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-V Operation
• Independent Receiver Clock Input
• Transmit, Receive, Line Status, and Data Set
  Interrupts Independently Controlled
• Fully Programmable Serial Interface Characteristics:
  • 5-, 6-, 7-, or 8-Bit Characters
  • Even-, Odd-, or No-Parity Bit Generation and Detection