LH540203D SHARP [Sharp Electrionic Components], LH540203D Datasheet - Page 14

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

LH540203
TIMING DIAGRAMS (cont’d)
14
NOTES:
NOTES:
1. t
2. t
3. The Data Out pins (D
1. t
2. t
HF
W
R
high-impedance state whenever EF = LOW.
EF
RPE
RPE
W
WPF
WPF
R
FF
W
R
: Effective Read Pulse Width after Empty Flag HIGH.
= t
: Effective Write Pulse Width after Full Flag HIGH.
= t
HALF-FULL
RPW
OR LESS
WPW.
0
- D
8
) are forced into a
t
WHF
Figure 18. Half-Full Flag Timing
Figure 16. Empty Flag Timing
Figure 17. Full Flag Timing
MORE THAN
HALF-FULL
t
WEF
t
RFF
CMOS 2048
t
RHF
HALF-FULL
t
t
RPE
OR LESS
WPF
9 Asynchronous FIFO
540203-11
540203-10
540203-12