M5M4V64S20ATP-12 データシートの表示（PDF） - MITSUBISHI ELECTRIC
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M5M4V64S20ATP-12 Datasheet PDF : 51 Pages
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SDRAM (Rev.1.3)
Mar98
MITSUBISHI LSIs
M5M4V64S20ATP-8A,-8L,-8, -10L, -10
64M (4-BANK x 4194304-WORD x 4-BIT) Synchronous DRAM
FUNCTION TRUTH TABLE(continued)
Current State /CS /RAS /CAS /WE Address
PRE -
H
X
X
XX
CHARGING L
H
H
HX
L
H
H
L BA
L
H
L
X BA, CA, A10
L
L
H
H BA, RA
L
L
H
L BA, A10
L
L
L
HX
Op-Code,
L
L
L
L
Mode-Add
ROW
H
X
X
XX
ACTIVATING L
H
H
HX
L
H
H
L BA
L
H
L
X BA, CA, A10
L
L
H
H BA, RA
L
L
H
L BA, A10
L
L
L
HX
Op-Code,
L
L
L
L
Mode-Add
WRITE RE- H
X
X
XX
COVERING L
H
H
HX
L
H
H
L BA
L
H
L
X BA, CA, A10
L
L
H
H BA, RA
L
L
H
L BA, A10
L
L
L
HX
Op-Code,
L
L
L
L
Mode-Add
Command
Action
DESEL NOP (Idle after tRP)
NOP
NOP (Idle after tRP)
TBST
ILLEGAL*2
READ / WRITE ILLEGAL*2
ACT
ILLEGAL*2
PRE / PREA NOP*4 (Idle after tRP)
REFA
ILLEGAL
MRS
ILLEGAL
DESEL NOP (Row Active after tRCD)
NOP
NOP (Row Active after tRCD)
TBST
ILLEGAL*2
READ / WRITE ILLEGAL*2
ACT
ILLEGAL*2
PRE / PREA ILLEGAL*2
REFA
ILLEGAL
MRS
ILLEGAL
DESEL NOP
NOP
NOP
TBST
ILLEGAL*2
READ / WRITE ILLEGAL*2
ACT
ILLEGAL*2
PRE / PREA ILLEGAL*2
REFA
ILLEGAL
MRS
ILLEGAL
MITSUBISHI ELECTRIC
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