HD68B21 - Peripheral Interface Adapter

Product Overview

Hitachi

Part number	HD68B21
Manufacturer	Hitachi
File Size	774.00 KB
Description	Peripheral Interface Adapter
Datasheet	HD68B21 Datasheet
Note	This datasheet PDF includes multiple part numbers: HD68B21, HD68A21. Please refer to the document for exact specifications by model.
Additional preview pages of the HD68B21 datasheet.

Two Bi-directional 8-Bit Peripheral Data Bus for interface to Peripheral devices Two Programmable Control Registers Two Programmable Data Direction Registers Four Individually-Controlled Interrupt Input Lines: Two Usable as Peripheral Control Outputs Handshake Control Logic for Input and Output Peripheral Operation High-Impedance 3-State and Direct Transistor Drive Peripheral Lines Program Controlled Interrupt and Interrupt Disable Capability CMOS Drive Capability on Side A Peripheral Lines Two.

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Published: Apr 30, 2015 |