This part is a kind of semiconductor called ST1200.
Function of this product has Memory Card IC 256 bit OTP EPROM.
Manufacturers : STMicroelectronics
Image and pinout :

Some of the text within the PDF file :
ST1200 Memory Card IC 256 bit OTP EPROM with Lock-Out DATA BRIEFING s s 256 x 1 bit Organisation 96 bits Protected in Write Mode By Lock-Out Fuse 5 V Power Supply (VCC) and 21 V Programming Voltage (VPP) 85 mW in Read Mode Power On Reset 1 1 1 1 s s s s s Very High Reliability Level Standard Delivery: Wafer Form and Micromodule Package Micromodule (D10) DESCRIPTION The ST1200 is a 256 bit OTP (one time programmable) EPROM, organized as 256 x 1, manufactured using ST’s highly reliable and well proven NMOS technology. The security mechanism, called Lock-Out, allows the user to inhibit, in write mode, the access to a memory section of 96 bits. Thus, by blowing a polysilicon fuse, the address bits 0 to 95 can be protected against write. The 9th bit of the ST1200 is [ ... ]
ST1200 PDF Datasheet Download
