再次感謝樓上各位大大的熱心回覆，順便貼一下收集到的資料：
Cypress CapSense CY8CMBR touch MCU
Nuvoton M4TKLE6AE 32bit touch MCU
NXP LPC804 32bit touch MCU
Holtek BS83BxxA 8bit touch MCU
Holtek BS81xA touch key
Microchip QT1060 touch key
TenX TK8023 touch key
TenX TM52F 8bit touch MCU