參數(shù)資料
型號(hào)： LH540235
廠商： Sharp Corporation
英文描述： 2048 x 18 / 4096 x 18 Synchronous FIFOs
中文描述： 2048 ×四千零九十六分之十八× 18同步FIFO的
文件頁(yè)數(shù)： 28/46頁(yè)
文件大?。?/td> 369K
代理商： LH540235
540235-23
Q
0
- Q
17
REN
RCLK
PAE
OE
WEN
D
0
- D
17
WCLK
DATA READ
t
DS
DATA IN OUTPUT REGISTER
t
DS
DATA WRITE 1
DATA WRITE 2
t
ENS
t
ENH
t
ENH
t
ENS
t
SKEW2(1)
t
SKEW2(1)
t
PAES
t
PAES
t
PAES
t
A
LOW
NOTES:
1. t
is the minimum time between a rising WCLK edge and a
rising RCLK edge for PAE to change predictably during the current
clock cycle. If the time between the rising edge of WCLK and the
rising edge of RCLK is less than t
, then it is not guaranteed
that PAE will change state until the next following RCLK edge.
2. PAE offset = q. Also, number of data words written into FIFO already = q.
3. The internal state of the FIFO:
At , q+1 words.
At B
At C
Enhanced Operating Mode Timing Diagram
B
A
C
Figure 15. Programmable-Almost-Empty Flag Timing,
When Synchronous (Enhanced Operating Mode)
TIMING DIAGRAMS (cont’d)
LH540235/45
2048 x 18/4096 x 18 Synchronous FIFOs
28
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LH540235M-20 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x18 Synchronous FIFO
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LH540235U-20 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x18 Synchronous FIFO
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