M5M4V16G50DFP-12 Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC
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M5M4V16G50DFP-12 Datasheet PDF : 33 Pages
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SGRAM (Rev. 0.0)
Jan'97 Preliminary
MITSUBISHI LSIs
M5M4V16G50DFP -8, -10, -12
16M (2-BANK x 262144-WORD x 32-BIT) Synchronous Graphics RAM
COMMAND TRUTH TABLE
COMMAND
Deselect
No Operation
Row Address Entry &
Bank Activate
Row Address Entry &
Bank Activate
MNEMONIC
DESEL
NOP
CKE
n-1
H
H
CKE
n
X
X
ACT
H
X
ACTWPB
H
X
/CS /RAS /CAS /WE DSF A10 A9 A0-8
H X X X XX
X
X
L HHHLX X X
L L H H L BA Row Add.
L L H H H BA Row Add.
Single Bank Precharge
Precharge All Banks
Column Address Entry
& Write
Column Address Entry
& Write with Auto-
Precharge
Column Address Entry
& Masked Block Write
PRE
PREA
WRITE
WRITEA
BW
Masked Block Write
with Auto-Precharge
BWA
H
X
L
LHL
L BA L
X
H
X
L L H L LX H X
H
X
L H L L L BA L Col.
H
X
L H L L L BA H Col.
H
X
L H L L H BA L Col.
H
X
L H L L H BA H Col.
Column Address Entry
& Read
Column Address Entry
& Read with Auto-
Precharge
Auto-Refresh
Self-Refresh Entry
Self-Refresh Exit
Burst Terminate
Mode Register Set
Special Register Set
READ
READA
REFA
REFS
REFSX
TERM
MRS
SRS
H
X
L H L H L BA L Col.
H
X
L H L H L BA H Col.
H
H
L L L HLX X
X
H
L
L L L HLX X X
L
H
H X X X XX
X
X
L
H
L
HHHLX
X
X
H
X
L
HH L
LX
X
X
H
X
L LLLL
OPCODE
H
X
L L LLH
OPCODE
H=High Level, L=Low Level, BA=Bank Address, Col.=Column Address (A0-A7)
Row Add.=Row Address (A0-A9), X=Don't Care, n=CLK cycle number
MITSUBISHI ELECTRIC
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