DP8421A, DP8422A (DP8420A - DP8422A) microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers

National Semiconductor

Description

DP8420A 21A 22A microCMOS Programmable 256k 1M 4M Dynamic RAM Controller Drivers July 1992 DP8420A 21A 22A microCMOS Programmable 256k 1M 4M Dynamic.
The DP8420A 21A 22A dynamic RAM controllers provide a low cost single chip interface between dynamic RAM and all 8- 16- and 32-bit systems The DP8420A.

📥 Download Datasheet

DP8421A Datasheet Preview — This datasheet PDF includes multiple part numbers: DP8421A, DP8422A. Please refer to the document for exact specifications by model.

Datasheet Specifications

Part number: DP8421A, DP8422A
Manufacturer: National Semiconductor
File Size: 824.52 KB
Datasheet: DP8422A_NationalSemiconductor.pdf
Description: (DP8420A - DP8422A) microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers
Note: This datasheet PDF includes multiple part numbers: DP8421A, DP8422A.
Please refer to the document for exact specifications by model.

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 byt

DP8421A Distributors

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DP8422A DP8420A DP8422A microCMOS Programmable 256k Dynamic RAM Controller Drivers National Semiconductor

National Semiconductor DP8421A-like datasheet