CBM7026

   CBM7026 is a capacitive touch button controller launched by Chipbond Technology Corporation . This chip is mainly used for

Appliances, consumption costs electrical key sub-field detection, and other industrial, with high sensitivity, anti-interference ability of microwave, anti

Water, dust, highly depend of other advantages. Can widely replace traditional mechanical buttons.

CBM7026 uses self-developed 8-Bit MCU processor, I2C-slave / Host, UART interface transmission

Key input letter information. I / O Mode can also be used to transmit key information, making it easier to develop application systems without analysis

Communication protocol package. Capacitive touch sensors can be made directly on the PCB, with few peripheral devices and system assembly

This is superior to the conventional press key scheme. The adaptive touchpad capacitance detection range is 1pF to 40pF.

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feature of product

Self-developed 8-BIT MCU;

Touch sensitivity can be flexibly configured through software tools or calibration capacitors;

Built-in OSC, LDO;

Provide one PWM output with adjustable frequency and pulse width;

8KB MTP is used for user code development and system configuration, and supports user code upgrade;

The sensor channel can be multiplexed into GPIO in time sharing;

2KB USER SRAM, a half-duplex serial port, flexible on-chip debugging function;

Support two communication interfaces: UART and I2C Host / Slave;

Supports up to 20 GPIOs, 18 of which can be used to touch keys, and the capacitance detection range is 1pF to 40pF

Support 2 working modes Normal / Idle, minimum working current 500uA;

EFT (4.5KV), ESD (8KV);

Large area complete water film environment adaptation (൑2 mm), and can work normally

Working voltage: 22.7V to 5.5V

Supports up to 10mm panel thickness (depending on panel material)

Temperature and humidity adaptive adjustment;

High and low frequency interference signal immunity, high power supply suppression ratio

Strong resistance to microwave radiation (≧ 10mW / cm 2);