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NXP Semiconductors - Single UART with I2C-bus/SPI interface

Numéro de référence SC16IS741
Description Single UART with I2C-bus/SPI interface
Fabricant NXP Semiconductors 
Logo NXP Semiconductors 





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SC16IS741 fiche technique
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SC16IS741
Single UART with I2C-bus/SPI interface, 64 bytes of transmit
and receive FIFOs, IrDA SIR built-in support
Rev. 01 — 29 April 2010
Product data sheet
1. General description
The SC16IS741 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 device comes in the TSSOP16 package, which makes it ideally suitable for
handheld, battery operated applications. This device enables seamless protocol
conversion from I2C-bus or SPI to and RS-232/RS-485 and are fully bidirectional.
The SC16IS741’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 SC16IS741 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
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)
„ RS-485 driver direction control via RTS signal
„ RS-485 driver direction control inversion
„ Built-in IrDA encoder and decoder interface
„ Software reset
„ Transmitter and receiver can be enabled/disabled independent of each other
„ Receive and Transmit FIFO levels
„ Programmable special character detection

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