M5M44265CJ View Datasheet(PDF) - MITSUBISHI ELECTRIC
Part Name
Description
Manufacturer
M5M44265CJ Datasheet PDF : 31 Pages
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MITSUBISHI LSIs
M5M44265CJ,TP-5,-6,-7,-5S,-6S,-7S
EDO (HYPER PAGE MODE) 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM
Hyper Page Mode Cycle
(Read, Early Write, Read-Write, Read-Modify-Write Cycle, Read Write Mix Cycle, Hi-Z control by OE or W) (Note 25)
Limits
Symbol
Parameter
M5M44265C-5,-5S M5M44265C-6,-6S M5M44265C-7,-7S Unit
Min Max Min Max Min Max
tHPC
Hyper page mode read/write cycle time
(Note 26) 20
25
30
ns
tHPRWC Hyper page mode read write / read modify write cycle time
57
66
79
ns
tDOH
Output hold time from CAS low
5
5
5
ns
tRAS
RAS low pulse width for read or write cycle
(Note 27) 65 100000 77 100000 92 100000 ns
tCP
CAS high pulse width
(Note 28)
8
13
10 16
13 16
ns
tCPRH
RAS hold time after CAS precharge
28
33
38
ns
tCPWD
Delay time, CAS precharge to W low
(Note 24) 43
50
60
ns
tCHOL
Hold time to maintain the data Hi-Z until CAS access
7
7
7
ns
tOEPE
OE pulse width (Hi-Z control)
7
7
7
ns
tWPE
W pulse width (Hi-Z control)
7
7
7
ns
tHCWD
Delay time, CAS low to W low after read
28
32
42
ns
tHAWD
Delay time, Address to W low after read
40
47
57
ns
tHPWD
Delay time, CAS precharge to W low after read
43
50
60
ns
tHCOD
Delay time, CAS low to OE high after read
13
15
20
ns
tHAOD
Delay time, Address to OE high after read
25
30
35
ns
tHPOD
Delay time, CAS precharge to OE high after read
28
33
38
ns
Note 25: All previously specified timing requirements and switching characteristics are applicable to their respective Hyper page mode cycle.
26: tHPC(min) is specified in the case of read-only and early write-only in Hyper page mode.
27: tRAS(min) is specified as two cycles of CAS input are performed.
28: tCP(max) is specified as a reference point only.
CAS before RAS Refresh Cycle (Note 29)
Symbol
Parameter
Limits
M5M44265C-5,-5S M5M44265C-6,-6S M5M44265C-7,-7S Unit
Min Max Min Max Min Max
tCSR
CAS setup time before RAS low
tCHR
CAS hold time after RAS low
tCAS
CAS low pulse width
5
5
5
ns
10
10
15
ns
17
17
22
ns
Note 29: Eight or more CAS before RAS cycles instead of eight RAS cycles are necessary for proper operation of CAS before RAS refresh mode.
Self Refresh Cycle* (Note 30)
Symbol
Parameter
tRASS
tRPS
tCHS
CBR self refresh RAS low pulse width
CBR self refresh RAS high precharge time
CBR self refresh CAS hold time
Limits
M5M44265C-5,-5S M5M44265C-6,-6S M5M44265C-7,-7S Unit
Min Max Min Max Min Max
100
100
100
µs
90
110
130
ns
-50
-50
-50
ns
7
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