m52s128168a-7tig Elite Semiconductor Memory Technology Inc., m52s128168a-7tig Datasheet - Page 25

• Manufacturer Part Number: m52s128168a-7tig
• Description: 2m X 16 Bit X 4 Banks Synchronous Dram
• Manufacturer: Elite Semiconductor Memory Technology Inc.

ESMT
Functional Truth Table.
Elite Semiconductor Memory Technology Inc.
ROW ACTIVE
Current
READ
IDLE
CS
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
RAS
X
H
H
H
X
H
H
H
H
X
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
CAS
X
H
H
H
H
X
H
H
H
H
X
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
WE
X
H
X
H
H
X
H
H
H
H
X
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
Preliminary
X
X
BA
BA, CA, A10
BA, RA
BA, A10
X
Op-Code Mode-Add
X
X
BA
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
X
Op-Code Mode-Add
X
X
BA
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
X
Op-Code Mode-Add
Address
DESEL
NOP
Burst Stop
READ / WRITE
Active
PRE / PREA
MRS
DESEL
NOP
Burst Stop
READ / READA
WRITE / WRITEA
Active
PRE / PREA
MRS
DESEL
Burst Stop
READ / READA
WRITE / WRITEA
Active
PRE / PREA
MRS
Refresh
Refresh
NOP
Refresh
Command
Revision : 1.4
Publication Date : Sep. 2008
Mode Register Set*5
Precharge/Precharge All
NOP
NOP
ILLEGAL*2
Bank Active, Latch RA
NOP*4
AUTO-Refresh*5
NOP
NOP
NOP
Begin Read, Latch CA,
Determine Auto -precharge
Begin Write, Latch CA,
Determine Auto -precharge
Bank Active/ILLEGAL*2
ILLEGAL
ILLEGAL
NOP (Continue Burst to END)
NOP (Continue Burst to END)
Terminate Burst
Terminate Burst, Latch CA,
Begin New Read, Determine
Auto-Precharge*3
ILLEGAL
Bank Active/ILLEGAL*2
Terminate Burst, Precharge
ILLEGAL
ILLEGAL
ILLEGAL*2
M53D128168A
Action
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