eKTF5705数据手册Elan中文资料规格书

描述 Description

The eKTF5705 basic key number supports up to 16 touch buttons which is applicable to One-Line type touch sensors.

For Slider application, 2-key, 4-key, & 8-key per slider and 8-key in dual slider are supported.User can select one type for his application.The slider function is provided with 4~32 levels of sliding resolution. In addition to slider, the system also supports up to 14 touch buttons.

If the application needs more than 32 touch buttons, user should choose the 48-key library appropriately.Maximum of 48-TouchKey is supported which can be applied to Two-Line type touch sensors.

The eKTF5705 can auto-calibrate the parameters for a wide range of capacitance on the touch button sensor. After power-on, automatic adjustment of the external environment, not just touch gestures influence. If the sensor environmental conditions are changed (temperature/shift, etc.), it will automatically recalibrate the sensor capacitance to adjust and compensate capacitance shift. It supports touch sensor for small surface area or sketchpad sensor width relatively small distance, allowing small 3C product design. The sensor cable length can be quite large-scale, and supports the need for large-volume products. It can be compatible with multi-product program design.

特性 Features

CPU configuration
8kx15 bits on-chip ROM
1072 bytes SRAM
8-level stacks for subroutine nesting
2 programmable Level Voltage Reset LVR 3.0, 2.7v
Four CPU operating modes: Normal, Sleep, Green, and IDLE
Operating Frequency:
IRC mode:
Main Oscillator:4M/8M/12M/16MHz
Sub Oscillator:16k/64k Touch Operating Voltage Range:
2.8~3.6V
Peripheral Configuration:
8-bit real time clock/counter (TCC) with selective signal sources (Fm/Fs)
2-channel Digital-to-Analog Converter for 256 steps
Two 16-bit timers (TMR1/TMR2) with PWM function (shared TMR2 to user)
I2C function
SPI function:
High EFT immunity (4KV)
Touch ButtonSensor:
Power-on time: Stable operating time
Reliable cover thickness:
Note: Under 15x15mm pad size is recommendedSupports protocol operation mode
Protocol Mode:
Interface features: Standard I2C @100K bps,
Fast @400K bps
Operating/Sleep current: (@ 3.3V 8 MHz)
* These parameters are based on IDLE timNumber of Sensors:
Up to 48 capacitive sensor buttons
Water Proof:
Provided on 16 touch buttons(keys)
Slider:
Provide one slider with 2/4/8 buttons or two sliders with 8 buttons (4 buttons per slider)
Provides maximum 32 levels of sliding resolution.
Package Type:
24 QFN 4x4x0.8mm:eKTF5705QN24
24 SOP 300mil: eKTF5705SO24