SC16IS740/750/760 2 Single UART with I C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support Rev. 7 9 June 2011 Product data sheet 1. General description 2 The SC16IS740/750/760 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 SC16IS750 and SC16IS760 also provide the application with 8 additional programmable I/O pins. The device comes in very small HVQFN24, TSSOP24 (SC16IS750/760) and TSSOP16 (SC16IS740) packages, which makes it ideally suitable for handheld, battery operated applications. This family of products enables seamless 2 protocol conversion from I C-bus or SPI to and RS-232/RS-485 and are fully bidirectional. The SC16IS760 differs from the SC16IS750 in that it supports SPI clock speeds up to 15 Mbit/s instead of the 4 Mbit/s supported by the SC16IS750, and in that it supports IrDA SIR up to 1.152 Mbit/s. In all other aspects, the SC16IS760 is functionally and electrically the same as the SC16IS750. The SC16IS740 is functionally and electrically identical to the SC16IS750, with the exception of the programmable I/O pins which are only present on the SC16IS750. The SC16IS740/750/760s 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 SC16IS740/750/760 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)SC16IS740/750/760 NXP Semiconductors 2 Single UART with I C-bus/SPI interface, 64-byte FIFOs, IrDA SIR Up to eight programmable I/O pins (SC16IS750 and SC16IS760 only) RS-485 driver direction control via RTS signal RS-485 driver direction control inversion Built-in IrDA encoder and decoder interface SC16IS750 supports IrDA SIR with speeds up to 115.2 kbit/s 1 SC16IS760 supports IrDA SIR with speeds up to 1.152 Mbit/s Software reset Transmitter and receiver can be enabled/disabled independent of each other Receive and Transmit FIFO levels Programmable special character detection 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 HVQFN24, TSSOP24 (SC16IS750/760) and TSSOP16 (SC16IS740) packages 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 SC16IS750 supports 4 Mbit/s maximum SPI clock speed SC16IS760 supports 15 Mbit/s maximum SPI clock speed Slave mode only SPI Mode 0 3. Applications Factory automation and process control Portable and battery operated devices Cellular data devices 1. Please note that IrDA SIR at 1.152 Mbit/s is not compatible with IrDA MIR at that speed. Please refer to application notes for usage of IrDA SIR at 1.152 Mbit/s. SC16IS740 750 760 All information provided in this document is subject to legal disclaimers. NXP B.V. 2011. All rights reserved. Product data sheet Rev. 7 9 June 2011 2 of 63