This part is a kind of semiconductor called 83C752.

Function of this product has 80C51 8-bit microcontroller family 2K/64 OTP/ROM/ 5 channel 8 bit A/D/ I2C/ PWM/ low pin count.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

INTEGRATED CIRCUITS 83C752/87C752 80C51 8-bit microcontroller family 2K/64 OTP/ROM, 5 channel 8 bit A/D, I2C, PWM, low pin count Product specification Supersedes data of 1998 Jan 19 IC20 Data Handbook 1998 May 01 Philips Semiconductors Philips Semiconductors Product specification 80C51 8-bit microcontroller family 2K/64 OTP/ROM, 5 channel 8 bit A/D, I2C, PWM, low pin count 83C752/87C752 DESCRIPTION The Philips 83C752/87C752 offers many of the advantages of the 80C51 architecture in a small package and at low cost. The 8XC752 Microcontroller is fabricated with Philips high-density CMOS technology. Philips epitaxial substrate minimizes CMOS latch-up sensitivity. The 8XC752 contains a 2k × 8 ROM (83C752) EPROM (87C752), a 64 × 8 RAM, 21 I/O lines, a 16-bit auto-reload counter/timer, [ ... ]

83C752 PDF Datasheet Download