32768-word x 8-bit CMOS One Time Electrically Programmable ROM

The HN27C256FP is a 32768-word by 8-bit one time electrically programmable ROM. Initially, all bits of the HN27C256FP are in the 1 State (Output High). Data is introduced by selectively programming Q into the desired bit locations. This device is packaged in a 28 pin plastic flat package (SOP). Therefore, this device cannot be re-written.