MH4V36AM-7 Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC
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MH4V36AM-7 Datasheet PDF : 18 Pages
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Preliminary Spec.
Some of contents are subject to change without notice.
MITSUBISHI LSIs
MH4V36AM-6,-7
FAST PAGE MODE 150994944-BIT ( 4194304-WORD BY 36-BIT ) DYNAMIC RAM
Read and Refresh Cycles
Symbol
Parameter
tRC
Read cycle time
tRAS
RAS low pulse width
tCAS
CAS low pulse width
tCSH CAS hold time after RAS low
tRSH RAS hold time after CAS low
tRCS Read Setup time after CAS high
tRCH Read hold time after CAS low
tRRH Read hold time after RAS low
tRAL
Column address to RAS hold time
tOCH CAS hold time after OE low
tORH RAS hold time after OE low
(Note 21)
(Note 21)
Limits
-6
-7
Min
Max
110
Min
Max
130
60
10000
70
10000
15
10000
60
20
10000
70
15
20
0
0
0
0
10
10
30
35
15
20
15
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Note 21: Either tRCH or tRRH must be satisfied for a read cycle.
Write Cycle (Early Write and Delayed Write)
Symbol
Parameter
tWC
tRAS
tCAS
tCSH
tRSH
tWCS
tWCH
tCWL
tRWL
tWP
tDS
tDH
tOEH
Write cycle time
RAS low pulse width
CAS low pulse width
CAS hold time after RAS low
RAS hold time after CAS low
Write setup time before CAS low
(Note 23)
Write hold time after CAS low
CAS hold time after W low
RAS hold time after W low
Write pulse width
Data setup time before CAS low or W low
Data hold time after CAS low or W low
OE hold time after W low
Limits
-6
-7
Min
Max
Min
Max
110
130
60
10000
70
10000
15
10000
20
10000
60
70
15
20
0
0
10
10
15
20
15
20
10
10
0
0
10
15
15
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MIT-DS-0071-0.1
MITSUBISHI
ELECTRIC
( 5 / 18 )
Sep./19 /1996
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