MH1V36CAM-7 Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC
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MH1V36CAM-7 Datasheet PDF : 18 Pages
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Preliminary Spec.
Some of contents are subject to change without notice.
MITSUBISHI LSIs
MH1V36CAM-6,-7
FAST PAGE MODE 37748736-BIT ( 1048576-WORD BY 36-BIT ) DYNAMIC RAM
FUNCTION
The MH1V36CAM provide, in addition to normal read,
write, and read-modify-write operations, a number of
other functions, e.g., fast page mode, RAS-only refresh, and
delayed-write. The input conditionsfor each are shown in Table 1.
Table 1 Input conditions for each mode
Operation
Read
RAS
ACT
CAS
ACT
Inputs
W
NAC
OE
ACT
Row
address
APD
Column
address
APD
Write (Early write)
ACT
ACT
ACT
DNC
APD
APD
Write (Delayed write)
ACT
ACT
ACT
DNC
APD
APD
Read-modify-write
ACT
ACT
ACT
ACT
APD
APD
RAS-only refresh
ACT
NAC
DNC
DNC
APD
DNC
Hidden refresh
ACT
ACT
DNC
ACT
APD
DNC
CAS before RAS refresh
ACT
ACT
NAC
DNC
DNC
DNC
Standby
NAC
DNC
DNC
DNC
DNC
DNC
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
/W 44
/OE 43
/CAS3 24
/CAS2 46
/CAS1 45
/CAS0 23
/RAS 32
Input/Output
Input
OPN
VLD
VLD
VLD
DNC
OPN
DNC
DNC
Output
VLD
OPN
IVD
VLD
OPN
VLD
OPN
OPN
Refresh Remark
YES
YES
YES
YES
YES
YES
YES
NO
Fast page
mode
identical
/RAS /UCAS /LCAS /OE /W Add
M5M4V18160C
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
/RAS /UCAS /LCAS /OE /W Add
M5MV18160C
/RAS /CAS1
/CAS3
/OE /W Add
/CAS2
/CAS4
M5M4V4500C
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
12 22 34 35 47 57
Vcc
6 18 28 41 51 63
Vss
MIT-DS-0027-0.0
MITSUBISHI
ELECTRIC
( 2 / 18 )
21 May 1996
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