SC16IS740/750/760
Single UART with I2C-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
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 SC16IS740/750/760’s 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
Selectable I2C-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)
