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AN-615 Abstract: C1995 DP8420A DP8422A F245 tcpb9 20R4D Text: National Semiconductor Application Note 615 Lawson H C Chang March 1989 INTRODUCTION This application note describes interfacing the DP8422A DRAM controller also applicable to DP8420A 21A to the 68000 (16 MHz) with slower memories This design is based upon burst mode access by holding RAS low and toggling	Original	PDF	DP8422A DP8420A DP8422A 20R4D) ALS6311) 20-3A AN-615 C1995 F245 tcpb9 20R4D
schematic 80386 Abstract: e174 ALS6311 80386 microprocessor PAL20R4D AN619 DP8421A C1995 DP8420A DP8422A Text: National Semiconductor Application Note 619 Lawson H C Chang February 1989 INTRODUCTION This application note describes how to interface the 80386 microprocessor to the DP8422A DRAM controller also applicable to DP8420A 21A with burst mode access The 80386 is running at 16 MHz 20 MHz or 25 MHz speed It is	Original	PDF	DP8422A DP8420A 386PAL1 20-3A schematic 80386 e174 ALS6311 80386 microprocessor PAL20R4D AN619 DP8421A C1995
Stag ppz Abstract: 20L8D PLQ20R4-5A PLQ20L8-5A 20L8 Text: Philips Components-Signetics PLQ20R8-5 Series D ocum en t N o. EC N N o. D ate o f Issue June 1990 S tatus Preliminary Specification PAL -type devices 20L8, 20R8, 20R6, 20R4 Programmable Logic Devices FEATURES DESCRIPTION • Ultra high-speed The Signetics P LQ 20XX family consists	OCR Scan	PDF	PLQ20R8-5 24-pin 28-Pin 1B/27 ZL30/30A 30A31 20L8-7/20L8D 20R8-7/20R8D 20R6-7/20R6D Stag ppz 20L8D PLQ20R4-5A PLQ20L8-5A 20L8
20L8D Abstract: amaze 20L8 Text: Philips Components-Signetics D o c u m e n t N o . 8 5 3 -1 3 5 9 ECN No. 99 7 9 1 D a te o f Is s u e J u n e 14, 1 9 9 0 S ta tu s P rod uct S p ecification PLUS20R8D/-7 Series PAL -type devices 20L8, 20R8, 20R6, 20R4 P ro g ra m m a b le Log ic D e vic es	OCR Scan	PDF	PLUS20R8D/-7 PLUS20L8 PLUS20R8 PLUS20R6 PLUS20R4 20L8D amaze 20L8