SC16C652BIBS数据手册恩XP中文资料规格书

描述 Description

The SC16C652B is a 2 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 SC16C652B is pin compatible with the SC16C2550. It will power-up to be functionally equivalent to the 16C2450. The SC16C652B provides enhanced UART functions with 32-byte FIFOs, modem control interface, DMA mode data transfer, and IrDA encoder/decoder. The DMA mode data transfer is controlled by the FIFO trigger levels and the TXRDY and RXRDY 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 loop-back capability allows on-board diagnostics. Independent programmable baud rate generators are provided to select transmit and receive baud rates.
The SC16C652B operates at 5 V, 3.3 V and 2.5 V and the industrial temperature range, and is available in plastic LQFP48 and very small (Micro-UART) HVQFN32 packages.

特性 Features

2 channel UART
5 V, 3.3 V and 2.5 V operation
5 V tolerant inputs
Industrial temperature range (-40 Cel. to +85 Cel.)
Pin and functionally compatible to 16C2450 in LQFP48 package, and software compatible with industry standard 16C450, 16C550, and SC16C650
Up to 5 Mbit/s data rate at 5 V and 3.3 V, and 3 Mbit/s at 2.5 V
32-byte transmit FIFO to reduce the bandwidth requirement of the external CPU
32-byte receive FIFO with error flags to reduce the bandwidth requirement of the external CPU
Independent transmit and receive UART control
Four selectable Receive and Transmit FIFO interrupt trigger levels
Automatic software (Xon/Xoff) and hardware (RTS/CTS) flow control
Programmable Xon/Xoff characters
Software selectable baud rate generator
Standard modem interface or infrared IrDA encoder/decoder interface
Supports IrDA version 1.0 (up to 115.2 kbit/s)
Sleep mode
Standard asynchronous error and framing bits (Start, Stop, and Parity Overrun Break)
Transmit, Receive, Line Status, and Data Set interrupts independently controlled
Fully programmable character formatting: 5-bit, 6-bit, 7-bit, or 8-bit characters
Even, odd, or no-parity formats
1, 1 1/2, or 2-stop bit
Baud generation (DC to 5 Mbit/s)
False start-bit detection
Complete status reporting capabilities
3-state output TTL drive capabilities for bi-directional data bus and control bus
Line break generation and detection
Internal diagnostic capabilities: Loop-back controls for communications link fault isolation
Prioritized interrupt system controls
Modem control functions (CTS, RTS, DSR, DTR, RI, CD)