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參數(shù)資料
| 型號： | LH540202 |
| 廠商： | Sharp Corporation |
| 英文描述： | CMOS 1024 x 9 Asynchronous FIFO |
| 中文描述： | 1024 × 9的CMOS異步FIFO |
| 文件頁數(shù)： | 5/18頁 |
| 文件大小： | 156K |
| 代理商： | LH540202 |
OPERATIONAL MODES
Standalone Configuration
When depth cascading is not required for a given
application, the LH540202 is placed in standalone mode
by tying the Expansion In input (XI) to ground. This
input is internally sampled during a reset operation. (See
Table 1.)
Width Expansion
Word-width expansion is implemented by placing
multiple LH540202 devices in parallel. Each LH540202
should be configured for standalone mode. In this ar-
rangement, the behavior of the status flags is identical for
all devices; so, in principle, a representative value for
each of these flags could be derived from any one device.
In practice, it is better to derive ‘composite’ flag values
using external logic, since there may be minor speed
variations between different actual devices. (See Figures
4, 5, and 6.)
WRITE
DATA IN
D
0
- D
8
9
FULL FLAG
RESET
XI
RT
RETRANSMIT
EMPTY FLAG
9
READ
HF
LH540202
W
FF
RS
R
EF
DATA OUT
Q
0
- Q
8
540202-17
Figure 4. Standalone FIFO
(1024
×
9)
DATA IN
D
0
- D
17
18
WRITE
FULL FLAG
RESET
9
READ
EMPTY FLAG
R
EF
XI
RT
R
W
540202-18
RS
RETRANSMIT
RT
XI
HF
W
FF
RS
9
18
DATA OUT
Q
0
- Q
17
9
HF
9
LH540202
LH540202
Figure 5. FIFO Word-Width Expansion
(1024
×
18)
CMOS 1024
×
9 Asynchronous FIFO
LH540202
5
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LH540203U15 | CMOS 2048X9 ASYNCHRONOUS FIFO |
| LH540203 | CMOS 2048 x 9 Asynchronous FIFO |
| LH540204 | CMOS 4096 x 9 Asynchronous FIFO |
| LH540205 | CMOS 8192 x 9 Asynchronous FIFO |
| LH540215 | 512 x 18 / 1024 x 18 Synchronous FIFO |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LH540202-15 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x9 Asynchronous FIFO |
| LH540202-20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x9 Asynchronous FIFO |
| LH540202-25 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x9 Asynchronous FIFO |
| LH540202-35 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x9 Asynchronous FIFO |
| LH540202-50 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x9 Asynchronous FIFO |
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