MH4V36AM-7 View Datasheet(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
FUNCTION
The MH4V36AM provide, in addition to normal read,
write, and read-modify-write operations, a number of
Table 1 Input conditions for each mode
other functions, e.g., fast page mode, CAS before RAS refresh,
and delayed-write. The input conditionsfor each are shown in
Table 1.
Operation
Read
Write
Read-modify-write
RAS-only refresh
RAS
ACT
ACT
ACT
ACT
Inputs
CAS
ACT
ACT
ACT
NAC
W
NAC
ACT
ACT
DNC
OE
ACT
NAC
ACT
DNC
Input/Output
Input
OPN
VLD
VLD
DNC
Output
VLD
OPN
VLD
OPN
Hidden refresh
CAS before RAS refresh
ACT
ACT
ACT
ACT
DNC
NAC
ACT
DNC
OPN
DNC
VLD
OPN
Standby
NAC
DNC
DNC
DNC
DNC
OPN
Note : ACT : active, NAC : nonactive, DNC : don' t care, VLD : valid, IVD : Invalid,APD : applied, OPN : open
BLOCK DIAGRAM
Add
25,26,27,29,30,31,33,36,37,38,39,40
/W 44
/OE 43
/CAS3 24
/CAS2 46
/CAS1 45
/CAS0 23
/RAS 32
/RAS /UCAS /LCAS /OE /W Add
M5M465160A
/RAS /UCAS /LCAS /OE /W Add
M5M465160A
DQ9 11
DQ10 13
DQ11 14
DQ12 15
DQ13 16
DQ14 17
DQ15 19
DQ16 20
DQ17 48
DQ18 49
DQ19 50
DQ20 52
DQ21 53
DQ22 54
DQ23 55
DQ24 56
C1 to C2
0.22 uF
12 22 34 35 47 57
6 18 28 41 51 63
Vcc
Vss
/RAS /CAS1
/CAS3
/OE /W Add
/CAS2
/CAS4
M5M4V17500B
DQ1 DQ2 DQ3 DQ4
68 DQP4
58 DQP3
21 DQP2
10 DQP1
01 DQ1
02 DQ2
03 DQ3
04 DQ4
05 DQ5
07 DQ6
08 DQ7
09 DQ8
59 DQ25
60 DQ26
61 DQ27
62 DQ28
64 DQ29
65 DQ30
66 DQ31
67 DQ32
MIT-DS-0071-0.1
MITSUBISHI
ELECTRIC
( 2 / 18 )
Sep./19 /1996
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