SC18IM700

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

• 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
• 2.3 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

Products/packages

Pricing/ordering/availability

Applications

• Enable I²C-bus master support in a system
• I²C-bus instrumentation and control
• Industrial control
• Medical equipment
• Cellular telephones
• Handheld computers

Design support

Application Notes

AN10397_1; How to use the SC18IM700 to control any I2C-bus device (05-Dec-05)

Support Documents

75016189; NXP I (2008-06-01)

75015763; NXP I²C/SPI master bridges SC18IS600/601, SC18IS602/603, and SC18IM700 (2006-11-01)

web; NXP SC18IM700 UART to I2C master/GPIO bridge demoboard ()

75015355; SPI slave or UART to I2C master / GPIO (2006-05-01)

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