SC16IS750IBS,157

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 SC16IS740/750/760’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.

Features and benefits

General features
â–  Single full-duplex UART
â–  Selectable I2C-bus or SPI interface
â–  3.3 V or 2.5 V operation
■ Industrial temperature range: −40 °C to +85 °C
â–  64 bytes FIFO (transmitter and receiver)
â–  Fully compatible with industrial standard 16C450 and equivalent
â–  Baud rates up to 5 Mbit/s in 16x clock mode
â–  Auto hardware flow control using RTS/CTS
â–  Auto software flow control with programmable Xon/Xoff characters
â–  Single or double Xon/Xoff characters
â–  Automatic RS-485 support (automatic slave address detection)
â–  Up to eight programmable I/O pins (SC16IS750 and SC16IS760 only)
â–  RS-485 driver direction control via RTS signal
â–  RS-485 driver direction control inversion
â–  Built-in IrDA encoder and decoder interface
â–  SC16IS750 supports IrDA SIR with speeds up to 115.2 kbit/s
â–  SC16IS760 supports IrDA SIR with speeds up to 1.152 Mbit/s1
â–  Software reset
â–  Transmitter and receiver can be enabled/disabled independent of each other
â–  Receive and Transmit FIFO levels
â–  Programmable special character detection
â–  Fully programmable character formatting
â—† 5-bit, 6-bit, 7-bit or 8-bit character
â—† Even, odd, or no parity
â—† 1, 1 1/2, or 2 stop bits
â–  Line break generation and detection
â–  Internal Loopback mode
■ Sleep current less than 30 μA at 3.3 V
â–  Industrial and commercial temperature ranges
â–  Available in HVQFN24, TSSOP24 (SC16IS750/760) and TSSOP16 (SC16IS740)
packages

I2C-bus features

â–  Noise filter on SCL/SDA inputs
â–  400 kbit/s maximum speed
â–  Compliant with I2C-bus fast speed
â–  Slave mode only

SPI features

â–  SC16IS750 supports 4 Mbit/s maximum SPI clock speed
â–  SC16IS760 supports 15 Mbit/s maximum SPI clock speed
â–  Slave mode only
â–  SPI Mode 0

Applications

â–  Factory automation and process control
â–  Portable and battery operated devices
â–  Cellular data devices