M2V56S20AKT-5 View Datasheet(PDF) - Mitsumi
Part Name
Description
Manufacturer
M2V56S20AKT-5 Datasheet PDF : 49 Pages
| |||
SDRAM (Rev.1.01)
Single Data Rate
MITSUBISHI LSIs
M2V56S20/ 30/ 40 AKT -5, -6, -7
July '01
256M Synchronous DRAM
FUNCTION TRUTH TABLE
Current State /CS /RAS /CAS /WE
Address
Command
Action
IDLE
H
X
X
XX
DESEL NOP
L
H
H
HX
NOP
NOP
L
H
H
LX
TBST
ILLEGAL*2
L
H
L
X BA, CA, A10 READ / WRITE ILLEGAL*2
L
L
H
H BA, RA
ACT
Bank Active, Latch RA
L
L
H
L BA, A10
PRE / PREA NOP*4
L
L
L
HX
Op-Code,
L
L
L
L Mode-Add
REFA
MRS
Auto-Refresh*5
Mode Register Set*5
ROW ACTIVE H
X
X
XX
DESEL NOP
L
H
H
HX
NOP
NOP
L
H
H
LX
TBST
NOP
Begin Read, Latch CA,
L
H
L
H BA, CA, A10 READ / READA
Determine Auto-Precharge
WRITE / Begin Write, Latch CA,
L
H
L
L BA, CA, A10
WRITEA Determine Auto-Precharge
L
L
H
H BA, RA
ACT
Bank Active / ILLEGAL*2
L
L
H
L BA, A10
PRE / PREA Precharge / Precharge All
L
L
L
HX
REFA
ILLEGAL
Op-Code,
L
L
L
L
Mode-Add
MRS
ILLEGAL
READ
H
X
X
XX
DESEL NOP (Continue Burst to END)
L
H
H
HX
NOP
NOP (Continue Burst to END)
L
H
H
LX
TBST
Terminate Burst
Terminate Burst, Latch CA,
L
H
L
H BA, CA, A10 READ / READA Begin New Read, Determine
Auto-Precharge*3
Terminate Burst, Latch CA,
WRITE /
L
H
L
L BA, CA, A10
Begin Write, Determine Auto-
WRITEA
Precharge*3
L
L
H
H BA, RA
ACT
Bank Active / ILLEGAL*2
L
L
H
L BA, A10
PRE / PREA Terminate Burst, Precharge
L
L
L
HX
REFA
ILLEGAL
Op-Code,
L
L
L
L
Mode-Add
MRS
ILLEGAL
MITSUBISHI ELECTRIC
7
Share Link: 