參數(shù)資料
型號(hào): 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): 4/48頁
文件大?。?/td> 423K
代理商: LH540215
TOP VIEW
540215-34
58 57 56 55 54 53 52 51 50 49
64 63 62 61 60 59
Q
1
Q
1
L
O
V
C
E
V
C
D
1
D
1
R
R
7
8
9
10
11
14
15
12
13
6
2
3
4
5
1
16
D
2
D
0
D
13
D
15
D
11
D
12
D
9
D
10
D
8
D
7
D
5
D
6
D
3
D
4
D
1
R
D
14
43
42
41
40
39
36
35
38
37
44
48
47
46
45
34
Q
14
Q
11
Q
12
Q
10
Q
9
Q
7
Q
8
Q
5
Q
6
Q
4
EMODE
*
Q
13
33
Q
1
23 24 25 26 27 28 29 30 31 32
17 18 19 20 21 22
Q
0
Q
1
P
F
P
F
R
W
W
W
2
W
W
Q
2
V
C
Q
3
64-PIN TQFP
V
CC
V
S
V
S
V
SS
V
SS
V
SS
V
S
R
E
2
R
R
2
V
S
BOLD ITALIC = Enhanced Operating Mode.
*
This pin is V
CC
on IDT pinout; if EMODE pin is simply
biased to V
CC
, part will behave identical to IDT functionality.
Figure 3. Pin Connections for 64-Pin TQFP Package
SUMMARY OF SIGNALS/PINS
PIN
NAME
D
0
– D
17
RS
Data Inputs
Reset
EMODE
Enhanced Operating Mode
WCLK
Write Clock
WEN
RCLK
Write Enable
Read Clock
REN
Read Enable
OE
Output Enable
LD
Load
FL
/RT
RXI
/REN
2
First Load/
Retransmit
Read Expansion Input/
Read Enable 2
PIN
NAME
WXI
/WEN
2
FF
Write Expansion Input/
Write Enable 2
Full Flag
PAF
Programmable Almost-Full Flag
WXO/HF
Write Expansion Output/Half-Full Flag
PAE
EF
Programmable Almost-Empty Flag
Empty Flag
RXO/
EF
2
Q
0
– Q
17
V
CC
V
SS
Read Expansion Output
/Empty Flag 2
Data Outputs
Power
Ground
BOLD ITALIC = Enhanced Operating Mode
LH540215/25
512 x 18/1024 x 18 Synchronous FIFO
4
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