MB81F643242B-10FN-X Datasheet, PDF (4/56 Pages) Fujitsu Component Limited. – MEMORY CMOS 4 X 512 K X 32 BIT SYNCHRONOUS DYNAMIC RAM

MB81F643242B-10FN-X Advanced Info (AE0.3E)
s BLOCK DIAGRAM
Fig. 1 – MB81F643242B BLOCK DIAGRAM
CLK
To each block
CLOCK
BUFFER
CKE
CS
RAS
COMMAND
DECODER
CAS
WE
A0 to A10,
A10/AP
A11 (BA1)
A12 (BA0)
ADDRESS
BUFFER/
REGISTER
DQM0
to
DQM3
DQ0
to
DQ31
I/O DATA
BUFFER/
REGISTER
CONTROL
SIGNAL
LATCH
MODE
REGISTER
COLUMN
ADDRESS
COUNTER
RAS
BANK-3
BANK-2
BANK-1
BANK-0
CAS
WE
DRAM
CORE
(2,048 × 256 × 32)
ROW
ADDR.
COL.
ADDR.
I/O
VCC
VCCQ
VSS/VSSQ
4