RE46C117S8F Integrated Circuits (ICs)

Introduction

The RE46C117S8F is an enhanced sensor interface unit from Renesas. It is a highly specialized 4-state logic device that helps in controlling a variety of sensors and detectors. This unit, combined with a few other components, makes it possible to build a powerful sensor and detectors interface, ideal for automation and other industrial type applications.

Application Field

The RE46C117S8F is designed for applications that require the development of logic controllers using a minimum number of parts. Some of the more common uses of this device are in the automation, automotive, and industrial markets. It is ideal for creating multiple functions such as sequencing and data logging in a variety of applications including process control, product testing, and quality assurance.

The RE46C117S8F makes it easy to integrate varied sensors and detectors into any given system. These sensors exist as normally open or normally closed contact points and provide a highly accurate method to gather useful data that can be then used to control a variety of systems. The unit also allows for a variable analog input range from 0V to 32V.

Working Principle

The RE46C117S8F has four visibly labeled input ports that allow for the control of four separate inputs such as switches, sensors, or detectors. When data is present, the input will drive two output lines (18 and 19) to a high or low logical state depending on the type of data that is inputted. The output of these ports can be linked to a connected device such as a microprocessor or logic controller.

As a 4-state logic device, the RE46C117S8F offers two different operating modes – Pulse Mode and Latch Mode. When using Pulse Mode, the RE46C117S8F will drive its outputs low at both the leading and trailing edges of an input pulse. The pulse must be within a certain timing window (25 to 50 ms) and be of a certain length to be valid. In Latch Mode, the state of the output will latch to the state of the input until a reset input is applied.

Conclusion

The Renesas RE46C117S8F is a highly specialized 4-state logic device that is primarily used for the control of sensors and detectors. Its low-power design and low cost make it an ideal solution for automation, automotive, and industrial applications. The unit is highly versatile, allowing for Pulse and Latch mode operation as well as providing analog inputs with a range of 0V to 32V.