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)

FUNCTION TRUTH TABLE (continued)

Current State /CS /RAS /CAS /WE Address

Command Action

PRE -

H X X XX

CHARGING

L H H HX

DESEL NOP (Idle after tRP)

NOP NOP (Idle after tRP)

L H H L BA

TBST ILLEGAL*2

READ /

L

H

L

X BA, CA, A10 WRITE ILLEGAL*2

L L H H BA, RA

ACT ILLEGAL*2

L L H L BA, A10

PRE /

NOP*4 (Idle after tRP)

PREA

L L L HX

Op-Code,

LL LL

Mode-Add

REFA ILLEGAL

MRS ILLEGAL

ROW

H X X XX

ACTIVATING

L H H HX

DESEL NOP (Row Active after tRCD)

NOP NOP (Row Active after tRCD)

L H H L BA

TBST ILLEGAL*2

READ /

L H L X BA, CA, A10

ILLEGAL*2

WRITE

L L H H BA, RA

ACT ILLEGAL*2

L L H L BA, A10

PRE /

PREA ILLEGAL*2

L L L HX

Op-Code,

L

L

L

L Mode-Add

REFA ILLEGAL

MRS ILLEGAL

MITSUBISHI ELECTRIC

11

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