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SC16IS740_11 Datasheet, PDF (1/63 Pages) NXP Semiconductors – Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs | |||
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SC16IS740/750/760
Single UART with I2C-bus/SPI interface, 64 bytes of transmit
and receive FIFOs, IrDA SIR built-in support
Rev. 7 â 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 SC16IS740/750/760âs 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 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
ï® Single full-duplex UART
ï® Selectable I2C-bus or SPI interface
ï® 3.3 V or 2.5 V operation
ï® Industrial temperature range: ï40 ï°C to +95 ï°C
ï® 64 bytes FIFO (transmitter and receiver)
ï® Fully compatible with industrial standard 16C450 and equivalent
ï® Baud rates up to 5 Mbit/s in 16ï´ clock mode
ï® Auto hardware flow control using RTS/CTS
ï® Auto software flow control with programmable Xon/Xoff characters
ï® Single or double Xon/Xoff characters
ï® Automatic RS-485 support (automatic slave address detection)
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