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DP84T22 Datasheet - National Semiconductor

DP84T22_NationalSemiconductor.pdf

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Datasheet Details

Part number:

DP84T22

Manufacturer:

National Semiconductor

File Size:

824.36 KB

Description:

Microcmos programmable 256k/1m/4m dynamic ram controller/drivers.

DP84T22, microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers

The DP8420V 21V 22V-33 DP84T22-25 dynamic RAM controllers provide a low cost single chip interface between dynamic RAM and all 8- 16- and 32-bit systems The DP8420V 21V 22V-33 DP84T22-25 generate all the required access control signal timing for DRAMs An on-chip refresh request clock is used to auto

DP84T22 Features

* Y 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 TRI-STATE outputs (DP84T22 only) By

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