Product Summary

GENERAL  DESCRIPTION
The MX27C4000A is a 5V only, 4M-bit, One Time
Programmable Read Only Memory. It is organized as
512K words by 8 bits per word, operates from a single
+5 volt  supply, has a static standby  mode, and features
fast single address location programming.  All programming signals are TTL levels, requiring a single pulse. For
programming outside from the system, existing EPROMprogrammers may be used.  The MX27C4000A
supports a intelligent fast programming algorithm which
can result in programming time of less than two minutes.

Parametrics

MX27C4000APC-90 Datasheet (PDF) - Macronix International - 4M-BIT [512K x8] CMOS OTP ROM

Features

FEATURES
?    512K x 8 organization
?    Single +5V power supply
?    +12.5V programming voltage
?    Fast access time:  90/100/120/150 ns
?    Totally static operation
?    Completely TTL compatible

Diagrams

MX27C4000APC-90 Datasheet (PDF) - Macronix International - 4M-BIT [512K x8] CMOS OTP ROM