Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support

The SC16IS740/750/760 is a 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.