DP8432V - (DP8430V - DP8432V) microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers

National Semiconductor

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Datasheet Details

Part number	DP8432V
Manufacturer	National Semiconductor
File Size	770.35 KB
Description	(DP8430V - DP8432V) microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers
Datasheet	DP8432V_NationalSemiconductor.pdf

DP8432V Product details

Description

The DP8430V 31V 32V dynamic RAM controllers provide a low cost single chip interface between dynamic RAM and all 8- 16- and 32-bit systems The DP8430V 31V 32V generate all the required access control signal timing for DRAMs An on-chip refresh request clock is used to automatically refresh the DRAM array Refreshes and accesses are arbitrated on chip If necessary a WAIT or DTACK output inserts wait states into system access cycles including burst mode accesses RAS low time during refreshes and RAS

Features

Y Y Y Y Y Y Y Y Y On chip high precision delay line to guarantee critical DRAM access timing parameters microCMOS process for low power High capacitance drivers for RAS CAS WE and DRAM address on chip On chip support for nibble page and static column DRAMs Byte enable signals on chip allow byte writing in a word size up to 32 bits with no external logic Can use a single clock source Up to 33 MHz operating frequency On board Port A Port B (DP8432V only) refresh arbitration logic Direct inte.

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Published: Jan 7, 2006 |