參數(shù)資料
型號: 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
文件頁數(shù): 4/46頁
文件大小: 369K
代理商: LH540235
TOP VIEW
540235-34
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
NOTE: BOLD ITALIC
= Enhanced operating mode.
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
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
EMODE
V
S
R
E
2
R
R
2
V
S
Figure 3. Pin Connections for Thin Quad Flat Package
SUMMARY OF SIGNALS/PINS
PIN
NAME
D
0
– D
17
RS
Data Inputs
Reset
EMODE
Enhanced Operating Mode
WCLK
Write Clock
WEN
Write Enable
RCLK
Read Clock
REN
Read Enable
OE
Output Enable
LD
Load
FL
/RT
First Load/
Retransmit
RXI
/REN
2
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
Programmable Almost-Empty Flag
EF
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
LH540235/45
2048 x 18/4096 x 18 Synchronous FIFOs
4
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