General Description
The HT23C512 is a read-only memory with high performance CMOS storage device whose 512K of memory is arranged into 65536 words by 8 bits.

FEATUREs
• Operating voltage: 2.7V~5.5V
• Low power consumption
    – Operation: 25mA Max. (VCC=5V) 10mA Max. (VCC=3V)
    – Standby: 30µA Max. (VCC=5V) 10µA Max. (VCC=3V)
• Access time:150ns Max. (VCC=5V) 250ns Max. (VCC=3V)
• 65536×8 bits of mask ROM
• Mask options: chip enable CE/CE/OE1/OE1 and output enable OE/OE/NC
• TTL compatible inputs and outputs
• Tristate outputs
• Fully static operation
• Package type: 28-pin DIP/SOP