DP8417 (DP8417 - DP8419) 64k / 256k Dynamic RAM Controller/Drivers

National Semiconductor

Description

DP8417 NS32817 8418 32818 8419 32819 8419X 32819X 64k 256k Dynamic RAM Controller Drivers PRELIMINARY August 1989 DP8417 NS32817 8418 32818 8419 328.
The DP8417 8418 8419 8419X represent a family of 256k DRAM Controller Drivers which are designed to provide ‘‘No-Waitstate’’ CPU interface to Dynamic.

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Datasheet Specifications

Part number: DP8417
Manufacturer: National Semiconductor
File Size: 525.20 KB
Datasheet: DP8417_NationalSemiconductor.pdf
Description: (DP8417 - DP8419) 64k / 256k Dynamic RAM Controller/Drivers

Features

* Y Y Y Y Y Y Y Y Y Y Makes DRAM Interface and refresh tasks appear virtually transparent to the CPU making DRAMs as easy to use as static RAMs Specifically designed to eliminate CPU wait states up to 10 MHz or beyond Eliminates 15 to 20 SSI MSI components for significant board real estate redu

Applications

* using only modes 0 1 4 and 5 Thus the DP8419 will allow most DP8408A 9A users to directly upgrade their system by replacing their old controller chip with the DP8419 The highest priority of the DP8419 is speed By peforming the DRAM address multiplexing control signal timing and high-capacitive drive

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DP8417 DP8417 DP8419 64k 256k Dynamic RAM Controller Drivers National Semiconductor

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