General Description
The HT23C040 is a read-only memory with high performance CMOS storage device whose 4096K of memory is arranged into 524288 word 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: 120ns max. (VCC=5V)
                        250ns max. (VCC=3V)
• 5242888-bit of mask ROM
• Mask option: chip enable CE/CE/OE1/OE1, and output enable OE/OE/NC
• TTL compatible inputs and outputs
• Tristate outputs
• Fully static operation
• Package type: 32-pin DIP/SOP