SC18IM700
Master I
2
C-bus controller with UART interface
Rev. 01 鈥?28 February 2006
Product data sheet
1. General description
The SC18IM700 is designed to serve as an interface between the standard UART port of
a microcontroller or microprocessor and the serial I
2
C-bus; this allows the microcontroller
or microprocessor to communicate directly with other I
2
C-bus devices. The SC18IM700
can operate as an I
2
C-bus master. The SC18IM700 controls all the I
2
C-bus speci鏗乧
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.
2. Features
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UART host interface
I
2
C-bus controller
Eight programmable I/O pins
High-speed UART: baud rate up to 460.8 kbit/s
High-speed I
2
C-bus: 400 kbit/s
16-byte TXFIFO
16-byte RXFIFO
Programmable baud rate generator
2.3 V and 3.6 V operation
Sleep mode (power-down)
UART message format resembles I
2
C-bus transaction format
I
2
C-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
3. Applications
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Enable I
2
C-bus master support in a system
I
2
C-bus instrumentation and control
Industrial control
Medical equipment
Cellular telephones
Handheld computers