IS31SE5120 & IS31CS8977 are higher pin count integrating Mutual and active-proximity sensing CapTouch Technology with very low power consumption for Industrial and White Goods applications

MILPITAS, CA: MAR 22, 2022 – LUMISSIL MICROSYSTEMS, a Division of ISSI, today announced a newaddition to the family of capacitive touch sensor controllers consisting of IS31SE5120 Touch Sensor andIS31CS8977 MCU which simplify the replacement of mechanical buttons in a variety of applicationssuch as home appliances, IoT devices, instrumentation, control panels and liquid level measurementdevices. This enables easy prototyping and rapid implementation into any product. The downloadablesoftware package is part of an Integrated Development Environment (IDE) that comes complete with astandard code and calibration GUI.

Adding the new products to the Lumissil portfolio opens up many opportunities in Automotive, WhiteGoods and Small Appliances that may require larger sensor count and high performance touchlesssensing“said Ven Shan, VP of Marketing at Lumissil Microsystems. “With rapid adoption of Touchless,Proximity & Gesture sensing this enhanced family of devices offer customers a broader range of costeffective and easy to use solutions in their applications”.

IS31CS8977 MCU is supplied with IDE, code libraries for free SDCC compiler or for a Keil compiler. Itenables a complete and flexible utilization of part’s features for any type of capacitive sensing.IS31SE5120 Cap-touch sensor is supplied as a quick-implementation turn-key product with a standardcode. They are applicable for a variety of cap-touch sensors interfaces (button, wheel, slider andproximity) and materials (glass, plastics, wood etc.).The IS31SE5120 sensor calibration GUI enables simple device configuration in one flow for calibratingcapacitive touch sensors, configuring GPIO ports and saving configuration directly to a file or targetdevice’s flash, with no programing required. A GPIO can also be configured to output melody using onchip melody/tone generator. Product debugging support is available from ISSI’s application engineers.

Key features and benefits

Packaging and Availability

IS31CS8977 is available in 20/24/28 pin TSSOP-20/24/28 packages and 32 pin LQFP-32 Package.IS31SE5120 is available in 32 pin QFN-32 package. They operate from 2.3V to 5.5V over a temperaturerange of -40°C to +85°C. Samples can be ordered through Lumissil Microsystems’s global sales teamand worldwide distribution partners.

The IS31CS8977-QFLS2-TR is available and priced at $0.60 in quantities of 10,000.

The IS31SE5120-QFLS3-TR is available and priced at $0.65 in quantities of 10,000

For pricing on the other package options contact local sales.

Automotive AEC-Q100 qualified options will be released later this year