- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358798 > LH540215 (Sharp Corporation) 512 x 18 / 1024 x 18 Synchronous FIFO PDF資料下載
參數(shù)資料
| 型號： | LH540215 |
| 廠商： | Sharp Corporation |
| 英文描述： | 512 x 18 / 1024 x 18 Synchronous FIFO |
| 中文描述： | 512 ×一千〇二十四分之一十八× 18同步FIFO |
| 文件頁數(shù)： | 11/48頁 |
| 文件大?。?/td> | 423K |
| 代理商： | LH540215 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁當(dāng)前第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁
DESCRIPTION OF SIGNALS AND
OPERATING SEQUENCES
Table 1. Grouping-Mode Determination
During a Reset Operation
5
EMODE
WXI/WEN
2
RXI/REN
2
FL/RT
MODE
WXO/HF
USAGE
WXI/WEN
2
USAGE
RXI/REN
2
USAGE
FL/RT
USAGE
RXO/EF
2
USAGE
H
1
H
H
H
Cascaded
Slave
2
Cascaded
Master
2
(Reserved)
WXO
WXI
RXI
FL
RXO
H
1
H
H
L
WXO
WXI
RXI
FL
RXO
H
H
L
X
–
–
–
–
–
H
L
H
X
(Reserved)
–
–
–
–
–
H
L
L
H
3
(Not Allowed
During Reset)
(HF)
(none)
(none)
(RT)
(none)
H
L
L
L
3
Standalone
HF
(none)
(none)
RT
(none)
L
X
X
H
3
(Not Allowed
During Reset)
Interlocked
Paralleled
4
(HF)
(WEN
2
)
(REN
2
)
(RT)
(EF
2
)
L
X
X
L
3
HF
WEN
2
REN
2
RT
EF
2
NOTES:
1.
In IDT-compatible cascading, a reset operation forces WXO/HF and RXO/
EF
2
HIGH for the nth FIFO, thus forcing WXI/
WEN
2
and RXI/
REN
2
HIGH for the (n + 1)st FIFO.
2.
The terms ‘master’ and ‘slave’ refer to IDT-compatible cascading. In pipelined cascading
4
, there is no such distinction.
3. Once grouping mode has been determined during a reset operation, FL/RT then may go HIGH to activate a retransmit operation.
4.
EMODE must be asserted for access to the Control Register to be enabled. Also, FIFOs being used in a pipelined-cascading
configuration should be in Interlocked Paralleled mode.
5.
Setup-time and recovery-time specifications apply during a reset operation.
6.
H = HIGH; L = LOW; X = Don’t Care.
Table 2. Expansion-Pin Usage According to
Grouping Mode
I/O
PIN
IDT-COMPATIBLE OPERATING MODE
ENHANCED
OPERATING MODE
DEPTH-CASCADED
MASTER
DEPTH-CASCADED
SLAVE
STANDALONE
INTERLOCKED
PARALLELED
I
WXI /
WEN
2
From WXO ((n-1)st FIFO)
From WXO ((n-1)st FIFO)
Grounded
From FF (other FIFO)
O
WXO/HF
To WXI ((n+1)st FIFO)
To WXI ((n+1)st FIFO)
Becomes HF
Becomes HF
I
RXI/
REN
2
From RXO ((n-1)st FIFO)
From RXO ((n-1)st FIFO)
Grounded
From EF (other FIFO)
O
RXO
/EF
2
To RXI ((n+1)st FIFO)
To RXI ((n+1)st FIFO)
Unused
Becomes RT
1
Becomes EF
2
Becomes RT
1
I
FL/
RT
Grounded (Logic LOW)
Logic HIGH
NOTE:
1.
FL/
RT
may be grounded if
the Retransmit facility
is not being used.
BOLD ITALIC = Enhanced Operating Mode
512 x 18/1024 x 18 Synchronous FIFO
LH540215/25
11
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LH540235 | 2048 x 18 / 4096 x 18 Synchronous FIFOs |
| LH5420 | 256 x 36 x 2 Bidirectional FIFO |
| LH5424-S | 5 mm T1 3/4 LED, Non Diffused Super-Bright, Hyper-Red GaAIAs-LED |
| LH5424-QT | 5 mm T1 3/4 LED, Non Diffused Super-Bright, Hyper-Red GaAIAs-LED |
| LH5424-T | 5 mm T1 3/4 LED, Non Diffused Super-Bright, Hyper-Red GaAIAs-LED |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LH540215U-15 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x18 Synchronous FIFO |
| LH540215U-20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x18 Synchronous FIFO |
| LH540215U-25 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x18 Synchronous FIFO |
| LH540215U-35 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x18 Synchronous FIFO |
| LH540215U-50 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x18 Synchronous FIFO |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。