TL16C450FNR

没有 FIFO 的单路 UART 44-PLCC 0 to 70

description

The TL16C450 is a CMOS version of an asynchronous communications element ACE. It typically functions in a microcomputer system as a serial input/output interface. The TL16C450 performs serial-to-parallel conversion on data received from a peripheral device or modem and parallel-to-serial conversion on data received from its CPU. The CPU can read and report on the status of the ACE at any point in the ACE’s operation. Reported status information includes the type of transfer operation in progress, the status of the operation, and any error conditions encountered.

Programmable Baud Rate Generator Allows Division of Any Input Reference Clock by 1 to 216 –1 and Generates an Internal 16× Clock

Full Double Buffering Eliminates the Need for Precise Synchronization

Standard Asynchronous Communication Bits Start, Stop, and Parity Added or Deleted to or From the Serial Data Stream

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

– 1-, 1 1/2-, or 2-Stop Bit Generation

– Baud Generation dc to 256 Kbit/s

False Start Bit Detection

Complete Status Reporting Capabilities

3-State TTL 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

Easily Interfaces to Most Popular Microprocessors

Faster Plug-In Replacement for National Semiconductor NS16C450