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Specification

Overview

  • General Description

    The Capacitive Touchpad Application Library provides details on touch key application solutions based on microcontroller device. eKTF5616 provide three operation mode: Active mode (AM) / Low Active Mode (LAM) / Low Scan Mode (LSM). It can apply on PCB and film material and support maximum 16 keys with waterproof function which can avoid error key status from water splashing. For function applications, the system provides I²C slave protocol to communicate with host device. Users can get key status and set command using I²C. Additionally, eKTF5616 also supports SPI and UART communication. The Library supports capacitive touch key with plastic or glass substrate, and the maximum cover thickness is 8 mm. eKTF5616 touch function has more wide range parameter auto-calibration. It can be suitable for current environment when VDD on, and adjustment mechanism will run when environment varies. eKTF5616 has 8 channel 12 bits AD converters, Internal watch-dog timer and multi-level LVD detector which can ensure system stability. In addition to Flash ROM, eKTF5616 has internal 128 bytes EEPROM for customer use.

  • Features & Benefits

    • CPU Configuration

      • 4k x 16 bits program ROM
      • (48 + 512) bytes general purpose register (SRAM)
      • 128 bytes in-system programmable EEPROM
      • 16-level stacks for subroutine nesting
      • Typically 1 µA during sleep mode
      • 3 programmable Level Volt Reset (LVR): 4.2V, 3.6V, 2.5V
      • 16 programmable Level Voltage Detector (LVD): 4.7V, 4.5V, 4.3V, 4.1V, 3.9V, 3.7V, 3.5V, 3.3V, 3.1V, 2.9V, 2.8V, 2.6V, 2.5V, 2.4V, 2.3V, 2.2V
      • Four CPU operation modes Normal, Green, Idle and Sleep

    • I/O Port Configuration

      • 4 bidirectional I/O ports: P5 ~ P8
      • 4 programmable pin change wake-up ports: P5 ~ P8
      • 4 programmable pull-down I/O ports: P5 ~ P8
      • 4 programmable pull-high I/O ports: P5 ~ P8
      • 4 programmable open-drain I/O ports: P5 ~ P8
      • 4 programmable high-sink/drive I/O ports: P5 ~ P8
      • High-drive 30mA (typically)
      • High-sink 80mA (typically)

    • Operating Voltage Range

      • 2.1V ~ 5.5V at -40°C ~ 85°C (Industrial Grade)

    • Operating Frequency Range (base on two clocks)

      • High Internal RC oscillator (HIRC): 8MHz, 12MHz & 16MHz ±1%@25°C, 5V
      • Low Internal RC oscillator (LIRC): 16kHz & 32kHz

    • Peripheral Configuration

      • 8-bit real time clock (TCC) with selective signal sources, trigger edges, and overflow interrupt
      • Two Pulse Width Modulation (PWMA, PWMB) with 16-bit resolution shared with Timers A and B
      • One 8-bit timer TC1 with six modes: Timer / Counter / Capture / Window / Buzzer / PWM / PDO (Programmable Divider Output) modes
      • Touch key function 16 traces for 2 groups
      • 8-channel Analog-to-Digital converter with 12bit resolution + 1 internal reference for Vref & 1/2VDD (power detector)
      • Serial transmitter / receiver interface (SPI): 3-wire synchronous communication
      • I2C function with 7 / 10 bits address and 8 bits data transmit / receive mode, that standard mode is 100K bps and fast mode is 400K bps.
      • Universal asynchronous receiver / transmitter (UART) available
      • Power down (Sleep) mode
      • Idle with scan mode

    • 18 Available Interrupts: (2 External, 19 Internal)

      • External interrupt: P54, P55
      • Input-port status changed interrupt (wake up from sleep mode)
      • LVD interrupt
      • TCC overflow interrupt
      • TC1 interrupt
      • PWMA, PWMB period match completion
      • ADC completion interrupt
      • I2C transfer / receive / stop interrupt
      • UART TX, RX , RX error interrupt
      • TK Scan interruptSPI interrupt
      • System hold interrupt

    • Single Instruction Cycle Commands

  • Data Sheet

  • Package

  • Technical Information

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