General description
The SC18IM700 is designed to serve as an interface between the standard UART port of a microcontroller or microprocessor and the serial I2C-bus; this allows the microcontroller or microprocessor to communicate directly with other I2C-bus devices. The SC18IM700 can operate as an I2C-bus master. The SC18IM700 controls all the I2C-bus specific sequences, protocol, arbitration and timing. The host communicates with SC18IM700 with ASCII messages protocol; this makes the control sequences from the host to the SC18IM700 become very simple.
   
Features and benefits
■ UART host interface
■ I2C-bus controller
■ Eight programmable I/O pins
■ High-speed UART: baud rate up to 460.8 kbit/s
■ High-speed I2C-bus: 400 kbit/s
■ 16-byte TX FIFO
■ 16-byte RX FIFO
■ Programmable baud rate generator
■ 2.4 V and 3.6 V operation
■ Sleep mode (power-down)
■ UART message format resembles I2C-bus transaction format
■ I2C-bus master functions
■ Multi-master capability
■ 5 V tolerance on the input pins
■ 8 N 1 UART format (8 data bits, no parity bit, 1 stop bit)
■ Available in very small TSSOP16 package
   
Applications
■ Enable I2C-bus master support in a system
■ I2C-bus instrumentation and control
■ Industrial control
■ Medical equipment
■ Cellular telephones
■ Handheld computers