M2V56S20AKT-5 View Datasheet(PDF) - MITSUBISHI ELECTRIC
Part Name
Description
Manufacturer
M2V56S20AKT-5 Datasheet PDF : 51 Pages
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SDRAM (Rev.1.31)
Single Data Rate
Apr. '02
MITSUBISHI LSIs
M2V56S20/ 30/ 40 ATP
M2V56S20/ 30/ 40 AKT
256M Synchronous DRAM
FUNCTION TRUTH TABLE (continued)
Current State
WRITE
/CS /RAS /CAS /WE
H
X
X
X
L
H
H
H
L
H
H
L
LH
L
H
LH
L
L
L
L
H
H
Address
Command
Action
X
DESEL
NOP (Continue Burst to END)
X
NOP
NOP (Continue Burst to END)
X
TBST
Terminate Burst
BA, CA, A10
READ / READA
Terminate Burst, Latch CA,
Begin Read, Determine Auto-
Precharge*3
BA, CA, A10
WRITE /
WRITEA
Terminate Burst, Latch CA,
Begin Write, Determine Auto-
Precharge*3
BA, RA
ACT
Bank Active / ILLEGAL*2
L
L
L
L
L
L
H
L BA, A10
L
HX
Op-Code,
L
L
Mode-Add
PRE / PREA
REFA
MRS
Terminate Burst, Precharge
ILLEGAL
ILLEGAL
READ with
H
X
X
XX
AUTO
L
H
H
HX
PRECHARGE L
H
H
LX
DESEL
NOP
TBST
NOP (Continue Burst to END)
NOP (Continue Burst to END)
ILLEGAL
LH
L
H BA, CA, A10 READ / READA ILLEGAL for same Bank *6
WRITE /
LH
L
L BA, CA, A10
ILLEGAL for same Bank *6
WRITEA
L
L
H
H BA, RA
ACT
Bank Active / 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
MRS
ILLEGAL
ILLEGAL
WRITE with H
X
X
XX
AUTO
L
H
H
HX
PRECHARGE L
H
H
LX
DESEL
NOP
TBST
NOP (Continue Burst to END)
NOP (Continue Burst to END)
ILLEGAL
LH
L
H BA, CA, A10 READ / READA ILLEGAL for same Bank *7
WRITE /
LH
L
L BA, CA, A10
ILLEGAL for same Bank *7
WRITEA
L
L
H
H BA, RA
ACT
Bank Active / 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
MRS
ILLEGAL
ILLEGAL
MITSUBISHI ELECTRIC
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