The DP8417 8418 8419 8419X represent a family of 256k DRAM Controller Drivers which are designed to provide ‘‘No-Waitstate’’ CPU interface to Dynamic RAM arrays of up to 2 Mbytes and larger Each device offers slight functional variations of the DP8419 design which are tailored for different system r
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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 reduction system power savings and the elimination of chip-to-chip AC skewing On-board ultra precise delay line On-board high capacitive RAS CAS WE and address drivers (specified driving 88 DRAMs directly.
DP8417 NS32817 8418 32818 8419 32819 8419X 32819X 64k 256k Dynamic RAM Controller Drivers
PRELIMINARY
August 1989
DP8417 NS32817 8418 32818 8419 32819 8419X 32819X 64k 256k Dynamic RAM Controller Drivers
General Description
The DP8417 8418 8419 8419X represent a family of 256k DRAM Controller Drivers which are designed to provide ‘‘No-Waitstate’’ CPU interface to Dynamic RAM arrays of up to 2 Mbytes and larger Each device offers slight functional variations of the DP8419 design which are tailored for different system requirements All family members are fabricated using National’s new oxide isolated Advanced Low power Schottky (ALS) process and use design techniques which enable them to significantly out-perform all other LSI or discrete alternatives in speed level of integration and powe
DP8417 Datasheet
