MH8S64BALD-6 Datasheet, PDF (9/40 Pages) Mitsubishi Electric Semiconductor – 536,870,912-BIT ( 8,388,608-WORD BY 64-BIT ) Synchronous DYNAMIC RAM

MITSUBISHI LSIs
MH8S64BALD-6
536,870,912-BIT ( 8,388,608-WORD BY 64-BIT ) Synchronous DYNAMIC RAM
FUNCTION TRUTH TABLE(continued)
Current State
PRE -
CHARGING
ROW
ACTIVATING
WRITE RE-
COVERING
/S /RAS /CAS /WE Address
Command
Action
H
X
X
XX
DESEL NOP(Idle after tRP)
L
H
H
HX
NOP
NOP(Idle after tRP)
L
H
H
L BA
TBST
ILLEGAL*2
L
H
L
X BA,CA,A10 READ/WRITE ILLEGAL*2
L
L
H
H BA,RA
ACT
ILLEGAL*2
L
L
H
L BA,A10
PRE/PREA NOP*4(Idle after tRP)
L
L
L
HX
REFA
ILLEGAL
Op-Code,
L
L
L
L
Mode-Add
MRS
ILLEGAL
H
X
X
XX
DESEL NOP(Row Active after tRCD
L
H
H
HX
NOP
NOP(Row Active after tRCD
L
H
H
L BA
TBST
ILLEGAL*2
L
H
L
X BA,CA,A10 READ/WRITE ILLEGAL*2
L
L
H
H BA,RA
ACT
ILLEGAL*2
L
L
H
L BA,A10
PRE/PREA ILLEGAL*2
L
L
L
HX
REFA
ILLEGAL
Op-Code,
L
L
L
L
Mode-Add
MRS
ILLEGAL
H
X
X
XX
DESEL NOP
L
H
H
HX
NOP
NOP
L
H
H
L BA
TBST
ILLEGAL*2
L
H
L
X BA,CA,A10 READ/WRITE ILLEGAL*2
L
L
H
H BA,RA
ACT
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
MIT-DS-0317-0.0
MITSUBISHI
ELECTRIC
11/May. /1999 ₉