EM639165 Etron Technology Inc., EM639165 Datasheet - Page 10
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EM639165
Manufacturer Part Number
EM639165
Description
8Mega x 16bits SDRAM
Manufacturer
Etron Technology Inc.
Datasheet
1.EM639165.pdf
(48 pages)
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Preliminary
FUNCTION TRUTH TABLE (continued)
Current State
RECOVERING
REFRESHING
WRITE
/CS
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
/RAS /CAS /WE Address
X
X
H
H
H
H
H
H
L
L
L
L
L
L
L
L
X
H
H
H
H
X
H
H
H
H
L
L
L
L
L
L
X
H
X
H
H
X
H
X
H
H
L
L
L
L
L
L
BA
BA
X
X
BA, CA, A10
BA, RA
BA, A10
X
Op-Code,
Mode-Add
X
X
BA, CA, A10
BA, RA
BA, A10
X
Op-Code,
Mode-Add
10
Command
READ /
WRITE
DESEL
READ /
DESEL
WRITE
PRE /
PREA
TBST
PREA
TBST
PRE /
REFA
REFA
MRS
NOP
MRS
NOP
ACT
ACT
Action
NOP
NOP
ILLEGAL*2
ILLEGAL*2
ILLEGAL*2
ILLEGAL*2
ILLEGAL
ILLEGAL
NOP (Idle after tRC)
NOP (Idle after tRC)
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Rev 1.0
EM639165
Feb. 2001