a3p250 Actel Corporation, a3p250 Datasheet - Page 107

• Manufacturer Part Number: a3p250
• Description: Proasic3 Flash Family Fpgas With Optional Soft Arm Support
• Manufacturer: Actel Corporation

Table 2-107 • FIFO (for all dies except A3P250)
Parameter
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
F
Note:
ENS
ENH
BKS
BKH
DS
DH
CKQ1
CKQ2
RCKEF
WCKFF
CKAF
RSTFG
RSTAF
RSTBQ
REMRSTB
RECRSTB
MPWRSTB
CYC
MAX
For specific junction temperature and voltage supply levels, refer to
values.
Timing Characteristics
Worst Commercial-Case Conditions: T
REN_B, WEN_B Setup Time
REN_B, WEN_B Hold Time
BLK_B Setup Time
BLK_B Hold Time
Input Data (DI) Setup Time
Input Data (DI) Hold Time
Clock HIGH to New Data Valid on DO (flow-through)
Clock HIGH to New Data Valid on DO (pipelined)
RCLK HIGH to Empty Flag Valid
WCLK HIGH to Full Flag Valid
Clock HIGH to Almost Empty/Full Flag Valid
RESET_B LOW to Empty/Full Flag Valid
RESET_B LOW to Almost Empty/Full Flag Valid
RESET_B LOW to Data Out LOW on DO (flow-through)
RESET_B LOW to Data Out LOW on DO (pipelined)
RESET_B Removal
RESET_B Recovery
RESET_B Minimum Pulse Width
Clock Cycle Time
Maximum Frequency for FIFO
Description
J
= 70°C, V
v1.2
CC
= 1.425 V
ProASIC3 DC and Switching Characteristics
Table 2-6 on page 2-6
1.34
0.00
0.19
0.00
0.18
0.00
2.17
0.94
1.72
1.63
6.19
1.69
6.13
0.92
0.92
0.29
1.50
0.21
3.23
310
–2
1.52
0.00
0.22
0.00
0.21
0.00
2.47
1.07
1.96
1.86
7.05
1.93
6.98
1.05
1.05
0.33
1.71
0.24
3.68
272
–1
1.79
0.00
0.26
0.00
0.25
0.00
2.90
1.26
2.30
2.18
8.29
2.27
8.20
1.23
1.23
0.38
2.01
0.29
4.32
Std.
231
2.15
0.00
0.31
0.00
0.29
0.00
3.48
1.52
2.76
2.62
9.96
2.72
9.85
1.48
1.48
0.46
2.41
0.34
5.19
193
for derating
–F
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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