SC16C850 2.5 V to 3.3 V UART, 5 Mbit/s (max.) with 128-byte FIFOs, infrared (IrDA), and 16 mode or 68 mode parallel bus interface Rev. 2 11 November 2010 Product data sheet 1. General 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 (see Section 6.2) 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. 2. Features and benefits 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 C to +85 C) 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 1 High resolution clock prescaler, from 0 to 15 with granularity of to allow 16 non-standard UART clock to be usedSC16C850 NXP Semiconductors 2.5 to 3.3 V UART with 128-byte FIFOs and IrDA encoder/decoder 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 3. Ordering information Table 1. Ordering information Type number Package Name Description Version SC16C850IBS HVQFN32 plastic thermal enhanced very thin quad flat package no leads SOT617-1 32 terminals body 5 5 0.85 mm SC16C850IBS/Q900 HVQFN32 plastic thermal enhanced very thin quad flat package no leads SOT617-1 32 terminals body 5 5 0.85 mm SC16C850IET TFBGA36 plastic thin fine-pitch ball grid array package 36 balls SOT912-1 body 3.5 3.5 0.8 mm 1 SC16C850IBS/Q900 is AEC-Q100 compliant. Contact i2c.support nxp.com for PPAP. SC16C850 All information provided in this document is subject to legal disclaimers. NXP B.V. 2010. All rights reserved. Product data sheet Rev. 2 11 November 2010 2 of 55