SC16IS740 Datasheet, PDF(1/62 Page) NXP Semiconductors – Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support

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SC16IS740 Datasheet, PDF (1/62 Pages) NXP Semiconductors – Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support

SC16IS740/750/760

Single UART with I2C-bus/SPI interface, 64 bytes of transmit

and receive FIFOs, IrDA SIR built-in support

Rev. 06 â 13 May 2008

Product data sheet

1. General description

The SC16IS740/750/760 is a slave I2C-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

protocol conversion from I2C-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 SC16IS740/750/760âs 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 ï¬ow 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

2.1 General features

I Single full-duplex UART

I Selectable I2C-bus or SPI interface

I 3.3 V or 2.5 V operation

I Industrial temperature range: â40 Â°C to +95 Â°C

I 64 bytes FIFO (transmitter and receiver)

I Fully compatible with industrial standard 16C450 and equivalent

I Baud rates up to 5 Mbit/s in 16Ã clock mode

I Auto hardware ï¬ow control using RTS/CTS

I Auto software ï¬ow control with programmable Xon/Xoff characters

I Single or double Xon/Xoff characters

I Automatic RS-485 support (automatic slave address detection)

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