TL16C552A - 具有 16 字节 FIFO 并行端口的双路 UART

TL16C552A是TI德州仪器公司的一款无产品，TL16C552A是具有 16 字节 FIFO 并行端口的双路 UART，本站介绍了TL16C552A的封装应用图解、特点和优点、功能等，并给出了与TL16C552A相关的TI元器件型号供参考。

TL16C552A - 具有 16 字节 FIFO 并行端口的双路 UART - 无 - UART - 德州仪器

产品描述

The TL16C552A is an enhanced dual-channel version of the popular TL16C550B asynchronous communications element (ACE). The device serves two serial input/output interfaces simultaneously in microcomputer or microprocessor-based systems. Each channel performs serial-to-parallel conversion on data characters received from peripheral devices or modems and parallel-to-serial conversion on data characters transmitted by the CPU. The complete status of each channel of the dual ACE can be read at any time during functional operation by the CPU. The information obtained includes the type and condition of the transfer operations being performed and the error conditions encountered.

In addition to its dual communications interface capabilities, the TL16C552A provides the user with a bidirectional parallel data port that fully supports the parallel Centronics-type printer interface. The parallel port and the two serial ports provide IBM PC/AT-compatible computers with a single device to serve the three system ports. A programmable baud rate generator that can divide the timing reference clock input by a divisor between 1 and (216 - 1) is included.

The TL16C552A is available in a 68-pin plastic-leaded chip-carrier (FN) package and a 80-pin TQFP (PN) package. The TL16C552AM is available in a 68-pin ceramic quad flat (HV) package.

产品特性

IBM PC/ATTM Compatible
Two TL16C550 ACEs
Enhanced Bidirectional Printer Port
16-Byte FIFOs Reduce CPU Interrupts
Up to 16-MHz Clock Rate for up to 1-Mbaud Operation
Transmit, Receive, Line Status, and Data Set Interrupts on Each Channel Independently Controlled
Individual Modem Control Signals for Each Channel
Programmable Serial Interface Characteristics for Each Channel:
- 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
3-State Outputs Provide TTL Drive for the Data and Control Bus on Each Channel
Hardware and Software Compatible With TL16C452

IBM PC/AT is a trademark of International Business Machines Corporation.

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