M2V28S20TP View Datasheet(PDF) - Mitsumi

Part Name

Description

Manufacturer

M2V28S20TP

128M Synchronous DRAM

Mitsumi 

SDRAM (Rev. 1.0E)

Jun. '99

MITSUBISHI LSIs

M2V28S20TP-6,-7,-8

M2V28S30TP-6,-7,-7L,-8,-8L

M2V28S40TP-7,-7L,-8,-8L

128M Synchronous DRAM

(4-BANK x 8,388,608-WORD x 4-BIT)

(4-BANK x 4,194,304-WORD x 8-BIT)

(4-BANK x 2,097,152-WORD x 16-BIT)

DQM CONTROL

DQM is a dual function signal defined as the data mask for writes and the output disable for

reads. During writes, DQM masks input data word by word. DQM to write mask latency is 0.

During reads, DQM forces output to Hi-Z word by word. DQM to output Hi-Z latency is 2.

CLK

Command

DQM

Write

DQM Function

READ

DQ

D0

D2 D3

masked by DQM=H

Q0 Q1

Q3

disabled by DQM=H

MITSUBISHI ELECTRIC

28

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