MH4M36CJD-5 Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC
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MH4M36CJD-5 Datasheet PDF : 14 Pages
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MITSUBISHI LSIs
MH4M36CJD-5,-6,-7
FAST PAGE MODE ( 4194304-WORD BY 36-BIT ) DYNAMIC RAM
Fast-Page Mode Cycle (Read, Early Write Cycle) (Note 21)
Limits
Symbol
Parameter
MH4M36CJD-5 MH4M36CJD-6 MH4M36CJD-7 Unit
Min Max Min Max Min Max
tPC
Fast page mode read/write cycle time
40
45
50
ns
tRAS RAS iow pulse width for read write cycle (Note22) 95 125000 110 125000 125 125000
ns
tCP
CAS high pulse width
(Note23) 8
12
10
15
10 15
ns
tCPRH RAS hold time after CAS precharge
35
40
45
ns
tCPWD Delay time, CAS precharge to W iow
53
60
65
ns
Note 21: All previously specified timing requirements and switching characteristics are applicable to their respective fast page mode cycle.
22: tRAS(min) is specified as two cycles of CAS input are performed.
23: tCP(max) is specified as a reference point only.
CAS before RAS Refresh Cycle (Note 24)
Symbol
Parameter
tCSR
CAS setup time before RAS low
tCHR CAS hold time after RAS low
tRSR
Read setup time before RAS low
tRHR
Read hold time after RAS low
Limits
MH4M36CJD-5 MH4M36CJD-6 MH4M36CJD-7 Unit
Min Max Min Max Min Max
10
10
10
ns
10
10
15
ns
10
10
10
ns
10
10
15
ns
Note 24: Eight or more CAS before RAS cycles instead of eight RAS cycles are necessary for proper operation of CAS before RAS refresh
mode.
MIT-DS-0035-0.0
MITSUBISHI
ELECTRIC
( 6 / 14 )
Jun/17/1996
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