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HT23C020 Datasheet CMOS 256kx 8-bit Mask Rom

Manufacturer: Holtek Semiconductor Inc

Overview: HT23C020 CMOS 256K×8-Bit Mask ROM.

General Description

The HT23C020 is a read-only memory with high performance CMOS storage device whose 2048K of memory is arranged into 262144 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 contention in multiple bus microprocessor systems.

Key Features

  • Operating voltage 2.7V~5.5V Low power consumption.
  • Operation: 25mA max. (V CC=5V) 10mA max. (VCC=3V).
  • Standby: 30µA max. (VCC=5V) 10µA max. (VCC=3V) Access time:150ns max. (VCC=5V) 250ns max. (VCC=3V).
  • 262144×8 bits of mask ROM Mask options: chip enable CE/CE/OE1/OE1, CE1/CE1/OE2/OE2/NC and output enable OE/OE/NC TTL compatible inputs and outputs Tristate outputs Fully static operation.

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