SC16IS752IBS,128

SC161S752 系列 64 字节 FIFO I²C-总线/SPI 接口 双 UART - HVQFN-32

Overview

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/SC16IS762’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 SC16IS752/SC16IS762 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.

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## Features

### General features

* Dual full-duplex UART

* I²C-bus or SPI interface selectable

* 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

* Up to eight programmable I/O pins

* RS-485 driver direction control via RTS signal

* RS-485 driver direction control inversion

* Built-in IrDA encoder and decoder supporting IrDA SIR with speeds up to 115.2 kbit/s

* SC16IS762 supports IrDA SIR with speeds up to 1.152 Mbit/s

* Software reset

* Transmitter and receiver can be enabled/disabled independent of each other

* Receive and Transmit FIFO levels

* Programmable special character detection

* Fully programmable character formatting

* 5-bit, 6-bit, 7-bit or 8-bit character

* Even, odd, or no parity

* 1, 1½, or 2 stop bits

* Line break generation and detection

* Internal Loopback mode

* Sleep current less than 30 μA at 3.3 V

* Industrial and commercial temperature ranges

* 5 V tolerant inputs

* Available in HVQFN32 and TSSOP28 packages

### I²C-bus features

* Noise filter on SCL/SDA inputs

* 400 kbit/s maximum

* Compliant with I²C-bus Fast mode

* Slave mode only

### SPI features

* SC16IS752 supports 4 Mbit/s maximum SPI clock speed

* SC16IS762 supports 15 Mbit/s maximum SPI clock speed

* SPI Mode 0

## Features