LH540203D SHARP [Sharp Electrionic Components], LH540203D Datasheet - Page 13

• Manufacturer Part Number: LH540203D
• Description: CMOS 2048X9 ASYNCHRONOUS FIFO
• Manufacturer: SHARP [Sharp Electrionic Components]

CMOS 2048
TIMING DIAGRAMS (cont’d)
NOTES:
NOTES:
1. t
2. t
3. The Data Out pins (D
1. t
2. t
high-impedance state whenever EF = LOW.
Q
RPE
RPE
D
WPF
WPF
Q
D
0
0
0
0
- D
- Q
: Effective Read Pulse Width after Empty Flag HIGH.
: Effective Write Pulse Width after Full Flag HIGH.
= t
- Q
FF
= t
- D
W
EF
R
W
8
8
R
RPW
WPW.
8
8
9 Asynchronous FIFO
0
- D
8
) are forced into a
t
A
Figure 15. Write Data Flow-Through
Figure 14. Read Data Flow-Through
VALID DATA IN
VALID DATA OUT
t
RFF
t
t
WEF
WLZ
t
WFF
t
A
t
t
WPF
REF
t
RPE
VALID DATA OUT
VALID DATA IN
t
DS
t
DH
LH540203
540203-9
540203-8
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