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.

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
• Operating current: 40mA
• Standby current: 100uA
• Package type:
    - 32 pin PDIP
    - 32 pin PLCC
    - 32 pin SOP
    - 32 pin TSOP