描述 Description

The SC16C850 is a 2.5 V to 3.3 V, low power, single 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 SC16C850 is functionally (software) compatible with the SC16C650B. SC16C850 can be programmed to operate in extended mode where additional advanced UART features are available. The SC16C850 UART provides enhanced UART functions with 128-byte FIFOs, modem control interface, and IrDA encoder/decoder. 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.
The SC16C850IBS with Intel (16 mode) or Motorola (68 mode) bus host interface operates at 2.5 V to 3.3 V and is available in a very small (Micro-UART) HVQFN32 package.
The SC16C850IET with Intel (16 mode) bus host interface operates at 2.5 V to 3.3 V and is available in a very small TFBGA36 package.

特性 Features

Single channel high performance UART
Intel or Motorola bus interface selectable using 16/68 pin
2.5 V to 3.3 V operation
Up to 5 Mbit/s data rate
128-byte transmit FIFO to reduce the bandwidth requirement of the external CPU
128-byte receive FIFO with error flags to reduce the bandwidth requirement of the external CPU
128 programmable Receive and Transmit FIFO interrupt trigger levels
128 Receive and Transmit FIFO reporting levels (level counters)
Automatic software (Xon/Xoff) and hardware (RTS/CTS or DTR/DSR) flow control
Industrial temperature range (–40 ℃ to +85 ℃)
128 hardware and software trigger levels
Automatic 9-bit mode (RS-485) address detection
Automatic RS-485 driver turn-around with programmable delay
UART software reset
High resolution clock prescaler, from 0 to 15 with granularity of 1/16 to allow non-standard UART clock to be used
Programmable Xon/Xoff characters
Software selectable baud rate generator
Support IrDA version 1.0 (up to 115.2 kbit/s)
Standard modem interface or infrared IrDA encoder/decoder interface
Enhanced Sleep mode and low power feature
Modem control functions (CTS, RTS, DSR, DTR, RI, CD)
Independent transmitter and receiver enable/disable
Pb-free, RoHS compliant package offered