1 KXD980-TS28IP Overview

1.1 General Description

      KXD980-TS28IP is a high-performance Touch Controller for capacitive touch keys. Its engine is an 8-bit 80C51 compatible Processor.

      KXD980-TS28IP has three timer/counters, maximum 16-channel of touch sensors,maximum 24 programmable I/O pins, 12-channel 8-bit PWMs, Watchdog timer, POR (Power-On Reset), UART, two I2C, SPI, 16-channel 12-bit ADC and LVD (Low Voltage Detector) as peripherals. In addition, it contains an internal ring oscillator, which can generate the 48 MHz system clock signal instead of a crystal oscillator.

      KXD980-TS28IP 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 any changes in the sensitivity due to environmental factors such as temperature and humidity.

      To effectively manage power,KXD980-TS28IP enables low power consumption by using scan interval and clock control methods after last touch.

      KXD980-TS28IP operates over the extended -20℃ to +85℃ temperature range, and is available in the 28-pin TSSOP package.

1.2 Features

◆ Capacitive touch key controller
         ◇ Supports up to 16 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 frame rate for power saving.
◆CPU

         ◇8-bit Turbo 80C52 Architecture
         ◇4 Cycles / 1 Machine Cycle
         ◇Instruction Level Compatible with Intel 80C52

◆Memory
         ◇16KB Flash (Including 1KB User EEPROM)
         ◇512B Internal Aux. RAM
         ◇256B Internal RAM
◆Power Supply
         ◇Operating Voltage : +2.7V to +3.6V
◆Operating Frequency: Max. 48MHz
◆24 Programmable I/O Pins
◆12-channel 8-bit PWMs
◆Communication interfaces
         ◇2-channel I2C Communication
         ◇1-channel UART Communication
         ◇1-channel SPI Communication
◆16-channel 12-bit ADC
◆Internal Ring OSC with Calibration function
◆Supporting ISP/IAP/MDS
◆10 Internal Interrupt Sources and 5 External Interrupt Sources
◆4 Reset Sources
◆Power Down Wake-up Sources
         ◇Reset Sources + 5 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
         ◇28-TSSOP

1.3 Applications

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

3 Pin Configuration