SC16IS741A 2 Single UART with I C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support Rev. 1 18 March 2013 Product data sheet 1. General description 1 2 The SC16IS741A is a slave I C-bus/SPI interface to a single-channel high performance UART. It offers data rates up to 5 Mbit/s and guarantees low operating and sleeping current. The device comes in the TSSOP16 package, which makes it ideally suitable for handheld, battery operated applications. This device enables seamless protocol 2 conversion from I C-bus or SPI to and RS-232/RS-485 and are fully bidirectional. The SC16IS741As internal register set is backward-compatible with the widely used and widely popular 16C450. This allows the software to be easily written or ported from another platform. The SC16IS741A also provides additional advanced features such as auto hardware and software flow control, automatic RS-485 support, and software reset. This allows the software to reset the UART at any moment, independent of the hardware reset signal. 2. Features and benefits 2.1 General features Single full-duplex UART 2 Selectable I C-bus or SPI interface 3.3 V or 2.5 V operation Industrial temperature range: 40 C to +95 C 64 bytes FIFO (transmitter and receiver) Fully compatible with industrial standard 16C450 and equivalent Baud rates up to 5 Mbit/s in 16 clock mode Auto hardware flow control using RTS/CTS Auto software flow control with programmable Xon/Xoff characters Single or double Xon/Xoff characters Automatic RS-485 support (automatic slave address detection) RS-485 driver direction control via RTS signal RS-485 driver direction control inversion Built-in IrDA encoder and decoder interface Software reset Transmitter and receiver can be enabled/disabled independent of each other Receive and Transmit FIFO levels Programmable special character detection 1. See Section 10.3.1 for the description of the differences between SC16IS741 and SC16IS741A.SC16IS741A NXP Semiconductors 2 Single UART with I C-bus/SPI interface, 64-byte FIFOs, IrDA SIR Fully programmable character formatting 5-bit, 6-bit, 7-bit or 8-bit character Even, odd, or no parity 1 1, 1 , or 2 stop bits 2 Line break generation and detection Internal Loopback mode Sleep current less than 30 A at 3.3 V Industrial and commercial temperature ranges Available in the TSSOP16 package 2 2.2 I C-bus features Noise filter on SCL/SDA inputs 400 kbit/s maximum speed 2 Compliant with I C-bus fast speed Slave mode only 2.3 SPI features Slave mode only SPI Mode 0 3. Applications Factory automation and process control Portable and battery operated devices Cellular data devices 4. Ordering information Table 1. Ordering information Type number Topside Package marking Name Description Version SC16IS741AIPW IS741A TSSOP16 plastic thin shrink small outline package 16 leads SOT403-1 body width 4.4 mm 4.1 Ordering options Table 2. Ordering options Type number Orderable Package Packing method Minimum Temperature part number order quantity SC16IS741AIPW SC16IS741AIPWJ TSSOP16 Reel 13 Q1/T1 2500 V = 2.5 V 0.2 V, DD *standard mark SMD T = 40 Cto+85 C amb V = 3.3 V 0.3 V, DD T = 40 Cto+95 C amb SC16IS741A All information provided in this document is subject to legal disclaimers. NXP B.V. 2013. All rights reserved. Product data sheet Rev. 1 18 March 2013 2 of 55