M2S56D40ATP-75L 查看數據表（PDF） - MITSUBISHI ELECTRIC
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M2S56D40ATP-75L Datasheet PDF : 37 Pages
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DDR SDRAM (Rev.1.0)
Jul. '01 Preliminary
MITSUBISHI LSIs
M2S56D20/ 30/ 40AKT
256M Double Data Rate Synchronous DRAM
FUNCTION TRUTH TABLE (continued)
Current State /CS /RAS /CAS /WE Address
Command
PRE-
HX
CHARGING L H
X XX
H HX
DESEL
NOP
L H H L BA
TERM
L H L X BA, CA, A10 READ / WRITE
L L H H BA, RA
ACT
L L H L BA, A10
PRE / PREA
L L L HX
REFA
Op-Code, Mode-
LL L L
MRS
Add
HX
ROW
LH
ACTIVATING
LH
X XX
H HX
H L BA
DESEL
NOP
TERM
L H L X BA, CA, A10 READ / WRITE
L L H H BA, RA
ACT
L L H L BA, A10
PRE / PREA
L L L HX
REFA
LL
L
L Op-Code, Mode- MRS
Add
HX
WRITE RE-
COVERING L H
LH
X XX
H HX
H L BA
DESEL
NOP
TERM
LH
LL
L X BA, CA, A10
H H BA, RA
READ / WRITE
ACT
L L H L BA, A10
PRE / PREA
L L L HX
REFA
Op-Code, Mode-
LL L L
MRS
Add
Action
NOP (Idle after tRP)
NOP (Idle after tRP)
ILLEGAL
ILLEGAL
ILLEGAL
NOP (Idle after tRP)
ILLEGAL
ILLEGAL
NOP (Row Active after tRCD)
NOP (Row Active after tRCD)
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOP
NOP
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Notes
2
2
2
4
2
2
2
2
2
2
2
2
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