UPD23C128040BL Datasheet - NEC

UPD23C128040BL (UPD23C128040BL / UPD23C128080BL) 128M-BIT MASK-PROGRAMMABLE ROM

The µPD23C128040BL and µPD23C128080BL are a 134,217,728 bits mask-programmable ROM. The word organization is selectable (BYTE mode : 16,777,216 words by 8 bits, WORD mode : 8,388,608 words by 16 bits). With 44-pin PLASTIC SOP package products, only WORD mode can be used; it is not possible to switch.

UPD23C128040BL Features

* Word organization 16,777,216 words by 8 bits (BYTE mode) Note Note Note 8,388,608 words by 16 bits (WORD mode) With 44-pin PLASTIC SOP package products, only WORD mode can be used. It is not possible to switch to BYTE mode.

* Page access mode BYTE mode : 8 byte random page acces

UPD23C128040BL_NEC.pdf