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
