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)
• 65536x8-bit 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
• 28-pin DIP/SOP package