MITSUBISHI <DIGITAL ASSP>
M66287FP
262144-word x 8-bit x 3-FIELD MEMORY
DESCRIPTION
The M66287FP is a high-speed field memory with three FIFO (First In First Out) memories of 262144-word x 8-bit
configuration (2M bits) which uses high-performance silicon gate CMOS process technology. One of three FIFO memories
consists of two FIFO memories of 262144-word x 4-bit (1M bits). Five types of operation can be performed through the
following mode settings:
Mode1 : 3-system delay data output by 3-system individual input of 256K-word x 8-bit FIFO
Mode2 : Simultaneous output of 1 to 3-line delay data by 1-system input of 256K-word x 8-bit FIFO
Mode3 : Simultaneous output of 1 to 2-line delay data by 1-system input of 256K-word x 8-bit FIFO
and,1-system delay data output by 1-system input of 256K-word x 8-bit FIFO
Mode4 : 2-system delay data output by 2-system individual input of 256K-word x 12-bit FIFO
Mode5 : Simultaneous output of 1 to 2-line delay data by 1-system input of 256K-word x 12-bit FIFO
The above-mentioned function is most suitable for image data correction across multiple fields. Because three pieces of
2M-bit FIFO are contained in one chip, a low power consumption of a set can be realized.
FEATURES
z Memory configuration
The total memory capacity is 6M bits (static memory).
The following two types of memory configurations can be selected.
262144-word x 8-bit x 3-line configuration
262144-word x 12-bit x 2-line configuration
16.6 ns (Min.)
z High - speed cycle
z High - speed access
z Output hold
13.0 ns (Max.)
2.0 ns (Min.)
z Supply voltage
Internal = 1.8 V ± 0.18 V
I/O = 3.3 V ± 0.3 V
z Variable length delay bit
z Five modes can be selected
z Write and read function can be operated completely independently and asynchronously
z Output
3 states
z Package
100pin QFP (100P6Q-A)
APPLICATION
W-CDMA base station, Digital PPC, Digital television, VTR and so on.
MODE DESCRIPTIONS DRAWING
2M-bit x 3 configuration
8-bit bus I/F
3M-bit x 2 configuration
12-bit bus I/F
MODE 1
MODE 2
MODE 3
MODE 4
MODE 5
12
12
8
8
8
8
8
8
8
8
12
12
DA<7:0>
WCKA
WRESA
WEA
QA<7:0>
RCKA
DA<7:0>
WCKA
QA<7:0>
RCKA
DA<11:0>
WCKA
DA<7:0>
WCKA
WRESA
WEA
QA<7:0>
RCKA
QA<11:0>
DA<11:0>
QA<11:0>
256K
x
8-bit
FIFO
256K
x
8-bit
FIFO
256K
x
256K
x
12-bit
FIFO
256K
x
12-bit
FIFO
RCKA
RCKA
WCKA
WRESA
RRESA
8-bit
FIFO
RRESA
REA
RRESA
WRESA
WRESA
WEA
RRESA
REA
RRESA
REA
REA
WEA
REA
WEA
8
DB<7:0>
WCKB
WRESB
WEB
QB<7:0>
RCKB
256K
x
256K
x
8-bit
FIFO
256K
x
8-bit
FIFO
8
8
8
8
8
QB<7:0>
QB<7:0>
8-bit
FIFO
RRESB
REB
12
12
DB<11:0>
WCKB
QB<11:0>
RCKB
12 256K
x
12-bit
FIFO
12
256K
x
12-bit
FIFO
QB<11:0>
8
8
8
WRESB
WEB
RRESB
REB
QC<7:0>
DC<7:0>
WCKC
WRESC
WEC
QC<7:0>
RCKC
DC<7:0>
WCKC
WRESC
WEC
256K
x
8-bit
FIFO
256K
x
8-bit
FIFO
256K
x
8-bit
FIFO
8
RCKC
RRESC
REC
QC<7:0>
RRESC
REC
The three pieces of 256K- The three pieces of 256K- The two pieces of 256K-
The two pieces of 256K-
The two pieces of 256K-
word x 8-bit FIFO can be
operated completely
independently.
word x 8-bit FIFO are
cascade-connected.
Write and read operation
of FIFO after the 2nd line
is controlled by the read
system pin of the 1st line.
word x 8-bit FIFO are
word x 12-bit FIFO can be word x 12-bit FIFO are
cascade-connected and, a operated completely
piece of 256K-word x 8-bit independently.
FIFO can be operated
completely independently.
Write and read operation
cascade-connected.
Write and read operation
of FIFO at the 2nd line is
controlled by the read
system pin of the 1st line.
of FIFO at the 2nd line is
controlled by the read
system pin of the 1st line.
Note: Please refer to “Pin Assignment Table” in “MODE 4 and MODE 5 OPERATION DESCRIPTIONS” for
assignment of external pins, Dx<11:0> and Qx<11:0> when used in 12-bit bus interface.
© 2002 MITSUBISHI ELECTRIC CORPORATION
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