HomedatasheetTL16C750FNR

TL16C750FNR Datasheet

ASYNCHRONOUS COMMUNICATIONS ELEMENT WITH 64-BYTE FIFOs AND AUTOFLOW CONTROL
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Description

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The TL16C750 is a functional upgrade of the TL16C550C asynchronous communications element (ACE), which in turn is a functional upgrade of the TL16C450. Functionally equivalent to the TL16C450 on power up (character or TL16C450 mode), the TL16C750, like the TL16C550C, can be placed in an alternate mode (FIFO mode). This relieves the CPU of excessive software overhead by buffering received and transmitted characters. The receiver and transmitter FIFOs store up to 64 bytes including three additional bits of error status per byte for the receiver FIFO. The user can choose between a 16-byte FIFO mode or an extended 64-byte FIFO mode. In the FIFO mode, there is a selectable autoflow control feature that can significantly reduce software overload and increase system efficiency by automatically controlling serial data flow through the RTS output and the CTS input signals (see Figure 1).

● Pin-to-Pin Compatible With the Existing
   TL16C550B/C
● Programmable 16- or 64-Byte FIFOs to
   Reduce CPU Interrupts
● Programmable Auto-RTS and Auto-CTS
● In Auto-CTS Mode, CTS Controls
   Transmitter
● In Auto-RTS Mode, Receiver 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 16-MHz Clock Rate for Up to 1-Mbaud
   Operation
● 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 or
   Deleted to or From the Serial Data Stream
● 5-V and 3-V Operation
● Register Selectable Sleep Mode and
   Low-Power Mode
● Independent Receiver Clock Input
● Independently Controlled Transmit,
   Receive, Line Status, and Data Set
   Interrupts
● Fully Programmable Serial Interface
   Characteristics:
   – 5-, 6-, 7-, or 8-Bit Characters
   – Even-, Odd-, or No-Parity Bit Generation
      and Detection
   – 1-, 1 1/2-, or 2-Stop Bit Generation
   – Baud Generation (DC to 1 Mbits Per
      Second)
● False Start Bit Detection
● Complete Status Reporting Capabilities
● 3-State Output CMOS Drive Capabilities for
   Bidirectional Data Bus and Control Bus
● Line Break Generation and Detection
● Internal Diagnostic Capabilities:
   – Loopback Controls for Communications
      Link Fault Isolation
   – Break, Parity, Overrun, Framing Error
      Simulation
● Fully Prioritized Interrupt System Controls
● Modem Control Functions (CTS, RTS, DSR,
   DTR, RI, and DCD)
● Available in 44-Pin PLCC and 64-Pin SQFP
● Industrial Temperature Range Available for
   64-Pin SQFP

Features

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Manufacturer information

TEXAS INSTRUMENTS

Texas Instruments introduction - Texas Instruments Incorporated (TI) is a global semiconductor design and manufacturing company that develops analog ICs and embedded processors. By employing the world's brightest minds, TI creates innovations that shape the future of technology. TI is helping more than 100,000 customers transform the future, today.

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