SC18IS600IBS,128

Controllers Overview

The SC18IS600 is a bridge IC designed to interface between a host SPI bus and an I2C-bus. It operates as an I2C master controller, allowing SPI hosts to communicate with I2C slave devices. The device supports SPI Mode 3 at speeds up to 1.2 Mbit/s and I2C-bus speeds up to 400 kbit/s. It features a 96-byte transmit buffer and a 96-byte receive buffer. Operating voltage ranges from 2.4 V to 3.6 V. The component includes four programmable GPIO pins and two quasi-bidirectional I/O pins, all of which are 5 V tolerant. It incorporates an internal oscillator and supports power-down mode via a WAKEUP pin.

Controllers Feature Summary

• Acts as a protocol bridge enabling SPI hosts to access I2C-bus peripherals
• Functions as a single master I2C-bus controller managing arbitration and timing
• Provides configurable general-purpose input/output pins with multiple drive modes
• Supports low-power operation through a dedicated power-down mode

Controllers Applications

• Interfacing microcontrollers with limited I2C ports to multiple I2C sensors
• Connecting SPI-based processors to legacy I2C EEPROMs or real-time clocks
• System integration requiring protocol translation in embedded designs

Controllers Procurement Notes

Verify the specific ordering suffix for packaging requirements, such as reel quantities. Confirm that the industrial temperature range meets environmental specifications. Ensure the TSSOP16 package dimensions align with board layout constraints. Check for any discontinuation notices regarding older variants like the /S8 version before finalizing procurement plans.

Controllers Selection Notes

Select this component when an SPI master must control I2C slaves without software overhead. Verify that the required I2C clock frequency falls within the supported range defined by the internal oscillator. Ensure the host system can accommodate the 96-byte buffer limits for data transactions. Confirm that the 5 V tolerance on I/O pins matches the voltage levels of the connected I2C bus lines.

Controllers Part Context

This device belongs to NXP's family of specialized interface controllers. It serves as a functional replacement for earlier bridge solutions, offering enhanced buffering and GPIO capabilities. The SC18IS600 simplifies system design by offloading I2C protocol management from the main processor, reducing software complexity and CPU load in mixed-protocol environments.

Controllers Replacement Considerations

The SC18IS600IPW/S8 is the standard surface-mount variant. Verify compatibility with existing PCB footprints if replacing older packages. No direct functional replacements are listed in the provided documentation; ensure pinout and register compatibility if considering alternative bridge ICs.