This part is a kind of semiconductor called HT46R065.

Function of this product has (HT46R064 - HT46R067) Enhanced A/D Type 8-Bit OTP MCU.

Manufacturers : Holtek Semiconductor

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Some of the text within the PDF file :

HT46R064/065/066/0662/067 Enhanced A/D Type 8-Bit OTP MCU Technical Document · Application Note - HA0075E MCU Reset and Oscillator Circuits Application Note Features CPU Features · Operating voltage: · Table read instructions · 63 powerful instructions · Up to 8-level subroutine nesting · Bit manipulation instruction · Low voltage reset function · Wide range of available package types fSYS= 4MHz: 2.2V~5.5V fSYS= 8MHz: 3.0V~5.5V fSYS= 12MHz: 4.5V~5.5V · Up to 0.33ms instruction cycle with 12MHz system clock at VDD= 5V · Idle/Sleep mode and wake-up functions to reduce Peripheral Features · Up to 42 bidirectional I/O lines · Up to 8 channel 12-bit ADC · Up to 3 channel 8-bit PWM · Software controlled 4-SCOM lines LCD driver with power consumption · Os [ ... ]

HT46R065 PDF Datasheet Download