M5M417400CJ-7 View Datasheet(PDF) - MITSUBISHI ELECTRIC
Part Name
Description
Manufacturer
M5M417400CJ-7 Datasheet PDF : 22 Pages
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MITSUBISHI LSIs
M5M417400CJ,TP-5,-6,-7,-5S,-6S,-7S
FAST PAGE MODE 16777216-BIT (4194304-WORD BY 4-BIT) DYNAMIC RAM
FUNCTION
The M5M417400CJ,TP 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 conditions for each are shown in Table 1.
Table 1 Input conditions for each mode
Operation
RAS
CAS
Inputs
W
OE
Row
address
Read
Write (Early write)
Write (Delayed write)
ACT
ACT
ACT
ACT
ACT
ACT
NAC
ACT
ACT
ACT
DNC
DNC
APD
APD
APD
Read-modify-write
ACT
ACT
ACT
ACT
APD
RAS-only refresh
ACT
NAC
DNC
DNC
APD
Hidden refresh
ACT
ACT
NAC
ACT
APD
Self refresh
CAS before RAS refresh
Stand-by
ACT
ACT
NAC
ACT
ACT
DNC
NAC
NAC
DNC
DNC
DNC
DNC
DNC
DNC
DNC
Note: ACT: active, NAC: nonactive, DNC: don’t care, VLD: valid, IVD: invalid, APD: applied, OPN: open
Column
address
APD
APD
APD
APD
DNC
DNC
DNC
DNC
DNC
Input/Output
Input
Output
OPN
VLD
VLD
VLD
DNC
OPN
DNC
DNC
DNC
VLD
OPN
IVD
VLD
OPN
VLD
OPN
OPN
OPN
Refresh
Remark
YES
YES
YES
YES
YES
YES
YES
YES
NO
Fast
page
mode
identical
BLOCK DIAGRAM
2
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