LH540203D SHARP [Sharp Electrionic Components], LH540203D Datasheet - Page 10

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

LH540203
AC ELECTRICAL CHARACTERISTICS
NOTES:
1. All timing measurements are performed at ‘AC Test Condition’ levels.
2. Pulse widths less than minimum value are not allowed.
10
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RC
A
RR
RPW
RLZ
WLZ
DV
RHZ
WC
WPW
WR
DS
DH
RSC
RS
RSR
RRSS
WRSS
RTC
RT
RTR
EFL
HFH,FFH
REF
RFF
WEF
WFF
WHF
RHF
XOL
XOH
XI
XIR
XIS
Read Cycle Time
Access Time
Read Recovery Time
Read Pulse Width
Data Bus Active from Read LOW
Data Bus Active from Write HIGH
Data Valid from Read Pulse HIGH
Data Bus High-Z from Read HIGH
Write Cycle Time
Write Pulse Width
Write Recovery Time
Data Setup Time
Data Hold Time
Reset Cycle Time
Reset Pulse Width
Reset Recovery Time
Read HIGH to RS HIGH
Write HIGH to RS HIGH
Retransmit Cycle Time
Retransmit Pulse Width
Retransmit Recovery Time
Reset LOW to Empty Flag LOW
Reset LOW to Half-Full and Full
Flags HIGH
Read LOW to Empty Flag LOW
Read HIGH to Full Flag HIGH
Write HIGH to Empty Flag HIGH
Write LOW to Full Flag LOW
Write LOW to Half-Full Flag LOW
Read HIGH to Half-Full Flag HIGH
Expansion Out LOW
Expansion Out HIGH
Expansion In Pulse Width
Expansion In Recovery Time
Expansion in Setup Time
PARAMETER
2
2
2
2
3
3,4
3
RETRANSMIT TIMING
WRITE CYCLE TIMING
READ CYCLE TIMING
MIN
EXPANSION TIMING
t
25
10
15
10
25
15
10
12
25
15
10
15
15
25
15
10
15
10
–
5
5
–
0
–
–
–
–
–
–
–
–
–
–
7
1
A
= 15 ns
RESET TIMING
(Over Operating Range)
FLAG TIMING
MAX
15
15
25
25
15
15
15
15
15
15
18
18
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
MIN
30
10
20
10
30
20
10
12
30
20
10
20
20
30
20
10
20
10
10
t
–
5
5
–
0
–
–
–
–
–
–
–
–
–
–
A
= 20 ns
MAX
30
20
15
30
20
20
20
20
20
20
20
20
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
5
MIN
t
35
10
25
10
35
25
10
12
35
25
10
25
25
35
25
10
25
10
10
–
5
5
–
0
–
–
–
–
–
–
–
–
–
–
A
= 25 ns
CMOS 2048
MAX
25
15
35
35
25
25
25
25
25
25
25
25
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
MIN
45
10
35
10
45
35
10
15
45
35
10
35
35
45
35
10
35
10
15
t
–
5
5
–
0
–
–
–
–
–
–
–
–
–
–
A
= 35 ns
MAX
9 Asynchronous FIFO
35
15
45
45
35
35
35
35
35
35
35
35
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
MIN
t
65
15
50
10
65
50
15
20
65
50
15
50
50
65
50
15
50
10
15
A
–
5
5
–
0
–
–
–
–
–
–
–
–
–
–
= 50 ns
MAX
50
20
65
65
45
45
45
45
45
45
50
50
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns