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UPD8021 - SINGLE CHIP 8-BIT MICROCOMPUTER

General Description

The NECIlPD8021 is a stand alone 8-bit parallel microcomputer incorporating the following

Key Features

  • usually found in external peripherals. The IlPD8021 contains: 1K x 8 bits of mask ROM program memory, 64 x 8 bits of RAM data memory, 21 I/O lines, an B-bit interval timer/event counter, and internal clock circuitry.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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NEe Microcomputers, Inc. NEe ILPD8021 SINGLE CHIP 8·BIT MICROCOMPUTER DESCRIPTION The NECIlPD8021 is a stand alone 8-bit parallel microcomputer incorporating the following features usually found in external peripherals. The IlPD8021 contains: 1K x 8 bits of mask ROM program memory, 64 x 8 bits of RAM data memory, 21 I/O lines, an B-bit interval timer/event counter, and internal clock circuitry. FEATURES • 8-Bit Processor, ROM, RAM, I/O, Timer/Counter • Single +5V Supply (+4.5V to +6.5V) • NMOS Silicon Gate Technology • 8.