PRODUCT DESCRIPTION
This is a Zilog Z8420A.PS Parallel Input/Output (PIO) Controller, part of the Z80 family of support chips.
Designed for use with the famous Z80 microprocessor, the Z8420A provides two programmable 8-bit parallel I/O ports that can operate in various modes, enabling flexible data communication between peripherals and the CPU.
Manufactured in the 1980s, this component played a vital role in many early computer systems and industrial control equipment.
👉 The item is untested and sold as-is, mainly intended for collectors of vintage computing hardware and microprocessor technology.
SPECIFICATIONS
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Manufacturer: Zilog
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Model: Z8420A.PS
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Type: Z80A Parallel Input/Output Controller
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Clock Speed: Compatible with Z80A systems
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Package: 40-pin DIP (Dual Inline Package)
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Markings: Z8420A.PS Z80A PIO 8308
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Era: 1980s
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Condition: Used, untested, collectible

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