SC16IS850L: Single UART with I²C-bus/SPI interface, 128 bytes of transmit and receive FIFOs, IrDA SIR built-in support ARCHIVED

Overview

Archived content is no longer updated and is made available for historical reference only.

The SC16IS850L is a follower 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 very small HVQFN24 and TSSOP24 packages, which makes it ideally suitable for handheld, battery operated applications. It also enables seamless protocol conversion from I²C-bus or SPI to and RS-232/RS-485 and are fully bidirectional.

The SC16IS850L supports SPI clock speeds up to 12 Mbit/s, and it supports IrDA SIR up to 115.2 kbit/s. Its internal register set is backward-compatible with the widely used and widely popular 16C850. This allows the software to be easily written or ported from another platform.

The SC16IS850L 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

Single full-duplex UART
Selectable I²C-bus or SPI interface
1.8 V operation
Industrial temperature range: -40 ℃ to +85 ℃
128 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 follower address detection)
RS-485 driver direction control via RTS signal
RS-485 driver direction control inversion
Built-in IrDA encoder and decoder interface
Supports IrDA SIR with speeds up to 115.2 kbit/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 5 µA at 1.8 V
Industrial and commercial temperature ranges
Available in HVQFN24 and TSSOP24 packages

I²C-bus features

400 kbit/s maximum speed
Compliant with I²C-bus Fast-mode (Fm) speed
Target mode only

SPI features

Supports 12 Mbit/s maximum SPI clock speed
Follower mode only
SPI Mode 0

MoreLess

Features

General features

Single full-duplex UART
Selectable I²C-bus or SPI interface
1.8 V operation
Industrial temperature range: -40 ℃ to +85 ℃
128 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 follower address detection)
RS-485 driver direction control via RTS signal
RS-485 driver direction control inversion
Built-in IrDA encoder and decoder interface
Supports IrDA SIR with speeds up to 115.2 kbit/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 5 µA at 1.8 V
Industrial and commercial temperature ranges
Available in HVQFN24 and TSSOP24 packages

I²C-bus features

400 kbit/s maximum speed
Compliant with I²C-bus Fast-mode (Fm) speed
Target mode only

SPI features

Supports 12 Mbit/s maximum SPI clock speed
Follower mode only
SPI Mode 0

Data Sheets