1 KXD95xK Overview

1.1 General Description

      KXD95xK is a high-performance Controller for capacitive touch keys. Its engine is an 8-bit 80C51 compatible Processor.

      KXD95xK has three timer/counters, maximum 8-channel of touch sensors, maximum 11 programmable I/O pins, 4-channel 8-bit PWMs, 1 Watchdog timer, POR (Power-On Reset), I2C and LVD (Low Voltage Detector) as peripherals. In addition, it contains an internal ring oscillator, which can generate the 24 MHz system clock signal.

      KXD95xK has its own architecture for fast sensing. With the hardware filter, it provides noise immunity and excellent sensitivity. The firmware algorithm supports smart sensitivity and compensates for changes in the sensitivity due to environmental factors such as temperature and humidity.

      To effectively manage power,KXD95xK enables low power consumption by using scan interval and clock control methods after last touch.

      KXD95xK operates over the extended -20℃ to +85℃ temperature range, and is available in the 16-pin QFN, 16-pin MLF, 16-pin TSSOP package.

1.2 Features

◆ Capacitive touch key controller
      ◇Supports up to 8 single-type touch keys
      ◇Supports scroll bar-type touch keys
      ◇Supports wheel-type touch keys
◆Response Time
      ◇Initial latency of < 20ms for first touch, subject to configuration
      ◇Programmable sensing rate for power saving.
◆CPU
      ◇8-bit Turbo 80C52 Architecture

      ◇4 Cycles / 1 Machine Cycle
      ◇Instruction Level Compatible with Intel 80C52
◆Memory
      ◇16KB Flash
      ◇768B Internal Aux. RAM
      ◇256B Internal RAM
◆Power Supply
      ◇Operating Voltage : +1.8V to +3.6V
◆Operating Frequency: Max. 24MHz
◆11 Programmable I/O Pins
◆4-channel 8-bit PWMs
◆Communication interfaces
      ◇1-channel I2C Communication (Slave)
◆Internal Ring OSC with Calibration function
◆Supporting ISP/IAP/MDS
◆7 Internal Interrupt Sources and 3 External Interrupt Sources
◆3 Reset Sources
◆Power Down Wake-up Sources
      ◇Reset Sources + 3 External Interrupt (Both Levels)
      ◇Watchdog Timer Interrupt
◆3 operating modes : Active, Sleep, Deep Sleep
◆E.S.D. Protection up to
      ◇8,000V
◆Latch-up Protection Up to 200mA
◆Package
      ◇16-pin QFN (0.55T)
      ◇16-pin MLF (0.85T)
      ◇16-pin TSSOP (0.6T)

1.3 Applications

◆Home appliance: TV, Monitor, Home Theater
◆Mobile Phones
◆Portable MP3, MP4
◆Digital Cameras

◆Battery power applications