LH543621 View Datasheet(PDF) - Sharp Electronics
Part Name
Description
MFG CO.
'LH543621' PDF : 57 Pages View PDF
512 x 36 x 2/1024 x 36 x 2 BiFIFOs
TIMING DIAGRAMS (cont’d)
CKB
tRWS
R/WB
t ES
ENB
t RQS
REQB
tA
D0B - D17B
BITS
0-17
BITS
18-35
BITS
0-17
WORD # n
WORD # n+1
D18B - D35B
BITS
18-35
BITS
0-17
BITS
18-35
WORD # n
WORD # n+1
NOTES:
1. A0B is held HIGH for FIFO access.
2. OEB is held LOW.
3. WS0 is held HIGH and WS1 is held LOW for double-byte access.
4. Data-access time tA, after the rising edge of CKB, shown for the
first read cycle, applies similarly for all subsequent read cycles.
BITS
18-35
BITS
0-17
WORD # n+2
BITS
0-17
BITS
18-35
WORD # n+2
Figure 35. Port B Double-Byte FIFO #1 Read Access for
36-to-18 Funneling
LH543611/21
543611-37
47
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