HT23C512 - Holtek Semiconductor Inc

HT23C512 CMOS 64Kx 8-Bit Mask ROM

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. For application flexibility, the chip enable and output enable control pins can be selected as active high or active low. This flexibility not only allows easy interface with most microprocessors, but also eliminates bus c.

Features

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• 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 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. For application flexib.