This part is a kind of semiconductor called 93C46CB3.

Function of this product has ST93C46CB.

Manufacturers : ST Microelectronics

Image and pinout :

Some of the text within the PDF file :

ST93C46A,46C,46T ST93C47C,47T 1K (64 x 16 or 128 x 8) SERIAL MICROWIRE EEPROM NOT FOR NEW DESIGN 1 MILLION ERASE/WRITE CYCLES, with 40 YEARS DATA RETENTION DUAL ORGANIZATION: 64 x 16 or 128 x 8 BYTE/WORD and ENTIRE MEMORY PROGRAMMING INSTRUCTIONS SELF-TIMED PROGRAMMING CYCLE with AUTO-ERASE READY/BUSY SIGNAL DURING PROGRAMMING SINGLE SUPPLY VOLTAGE: – 4.5V to 5.5V for ST93C46 version – 3V to 5.5V for ST93C47 version SEQUENTIAL READ OPERATION 5ms TYPICAL PROGRAMMING TIME ENHANCED ESD/LATCH UP PERFORMANCE for ”C” VERSION ST93C46A, ST93C46C, ST93C46T, ST93C47C, ST93C47T are replaced by the M93C46 8 1 PSDIP8 (B) 0.4mm Frame DESCRIPTION This specification covers a range of 1K bit serial EEPROM products, the ST93C46A,46C,46T specified at 5V±10% and the ST93C47C,4 [ ... ]

93C46CB3 PDF Datasheet Download