General description

The SC16C850SV is a 1.8 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 20 Mbit/s (4 sampling rate). SC16C850SV can be programmed to operate in

extended mode where additional advanced UART features are available (see

Section 6.2).The SC16C850SV family 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. Independent

programmable baud rate generators are provided to select transmit and receive baud

rates.

The SC16C850SV with Intel XScale processor VLIO interface operates at 1.8 V and is

available in the HVQFN32 package.

Features and benefits

 Single channel high performance UART

 1.8 V operation

 Advanced package: HVQFN32

 Up to 20 Mbit/s data rate at 1.8 V

 Programmable sampling rates: 16, 8, 4

 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

 Programmable Xon/Xoff characters

 128 programmable 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

 Industrial temperature range (40 C to +85 C)

 Software compatible with industry standard SC16C650B

 Software selectable baud rate generator

 Supports 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