This part is a kind of semiconductor called SAB-C501G-LN.

Function of this product has 8-Bit CMOS Microcontroller.

Manufacturers : Siemens Semiconductor Group

Image and pinout :

Some of the text within the PDF file :

Microcomputer Components 8-Bit CMOS Microcontroller C501 Data Sheet 04.97 C501 Data Sheet Revision History : Previous Releases : Page (previous version) general 4 5 5-7 11 8, 9, 10 13 14 15-18 17 41 4 5 5-7 11 8, 9, 10 13 14 15 16-18 17 25-28 31 41 43, 44 Page (new version) 1997-04-01 11.92, 11.93, 08.94, 08.95, 10.96 Subjects (changes since last revision) C501G-1E OTP version included Ordering information resorted and C501G-1E types added Table with literature hints added Pin configuration logic symbol for pins EA/Vpp and ALE/PROG updated Pin description for ALE/PROG and EA/Vpp completed Port 1, 3, 2 pin description: “bidirectional” replaced by “quasibidirectional” Block diagram updated for C501G-1E New design of register (PSW) description “Memory organization” added Actu [ ... ]

SAB-C501G-LN PDF Datasheet Download