General Description

The HT23C128 is a read-only memory with high performance CMOS storage device whose 128K of memory is arranged into 16384 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)

• 16384×8 bits of mask ROM

• Mask options: chip enable CE/CE/OE2/OE2 and output enable OE/OE/NC & OE1/ OE1/NC

• TTL compatible inputs and outputs

• Tristate outputs

• Fully static operation

• Package type: 28-pin DIP/SOP