SC16IS752 Datasheet, PDF(1/59 Page) NXP Semiconductors – Dual UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support

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SC16IS752 Datasheet, PDF (1/59 Pages) NXP Semiconductors – Dual UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support

SC16IS752/SC16IS762

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

and receive FIFOs, IrDA SIR built-in support

Rev. 07 â 19 May 2008

Product data sheet

1. General description

The SC16IS752/SC16IS762 is an I2C-bus/SPI bus interface to a dual-channel high

performance UART offering data rates up to 5 Mbit/s, low operating and sleeping current;

it also provides the application with 8 additional programmable I/O pins. The device comes

in very small HVQFN32 and TSSOP28 packages, which makes it ideally suitable for

hand-held, battery-operated applications. This chip enables seamless protocol conversion

from I2C-bus/SPI to RS-232/RS-485 and is fully bidirectional.

The SC16IS762 differs from the SC16IS752 in that it supports SPI clock speeds up to

15 Mbit/s instead of the 4 Mbit/s supported by the SC16IS752, and in that it supports IrDA

SIR up to 1.152 Mbit/s. In all other aspects, the SC16IS762 is functionally and electrically

the same as the SC16IS752.

The SC16IS752/SC16IS762âs 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 SC16IS752/SC16IS762 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 Dual full-duplex UART

I I2C-bus or SPI interface selectable

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)

I Up to eight programmable I/O pins

I RS-485 driver direction control via RTS signal

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