SC16C2552BIA44中文资料5 V、3.3 V和2.5 V的双通道UART，5 Mbit/s (最快)，带有16字节FIFO数据手册恩XP规格书

描述 Description

The SC16C2552B is a two channel Universal Asynchronous Receiver and Transmitter (UART) used for serial data communications. Its principal function is to convert parallel data into serial data, and vice versa. The UART can handle serial data rates up to 5 Mbit/s.
The SC16C2552B is pin compatible with the PC16552 and ST16C2552. The SC16C2552B provides enhanced UART functions with 16-byte FIFOs, modem control interface, DMA mode data transfer and concurrent writes to control registers of both channels. The DMA mode data transfer is controlled by the FIFO trigger levels and the RXRDY%%/spanspan class=\"overline\"/span%%signals. On-board status registers provide the user with error indications and operational status. System interrupts and modem control features may be tailored by software to meet specific user requirements. An internal loopback capability allows on-board diagnostics. Independent programmable baud rate generators are provided to select transmit and receive baud rates.
The SC16C2552B operates at 5 V, 3.3 V and 2.5 V and the industrial temperature range, and is available in a plastic PLCC44 package.

特性 Features

Industrial temperature range (-40 Cel to +85 Cel)
5 V, 3.3 V and 2.5 V operation
Pin-to-pin compatible to PC16C552, ST16C2552
Up to 5 Mbit/s data rate at 5 V and 3.3 V, and 3 Mbit/s at 2.5 V
5 V tolerant on input only pins
16-byte transmit FIFO
16-byte receive FIFO with error flags
Independent transmit and receive UART control
Four selectable receive FIFO interrupt trigger levels; fixed transmit FIFO interrupt trigger level
Modem control functions (CTS, RTS, DSR, DTR, RI, CD)
DMA operation and DMA monitoring via package I/O pins, TXRDY/RXRDY
UART internal register sections A and B may be written to concurrently
Multi-function output allows more package functions with fewer I/O pins
Programmable character lengths (5, 6, 7, 8), with even, odd, or no parity