参数资料
型号: APA450-BGG456I
厂商: Microsemi SoC
文件页数: 155/178页
文件大小: 0K
描述: IC FPGA PROASIC+ 450K 456-PBGA
标准包装: 24
系列: ProASICPLUS
RAM 位总计: 110592
输入/输出数: 344
门数: 450000
电源电压: 2.3 V ~ 2.7 V
安装类型: 表面贴装
工作温度: -40°C ~ 85°C
封装/外壳: 456-BBGA
供应商设备封装: 456-PBGA(35x35)
ProASICPLUS Flash Family FPGAs
2- 68
v5.9
Asynchronous FIFO Write
Note: The plot shows the normal operation status.
Figure 2-41 Asynchronous FIFO Write
Table 2-64 TJ = 0°C to 110°C; VDD = 2.3 V to 2.7 V for Commercial/Industrial
TJ = –55°C to 150°C, VDD = 2.3 V to 2.7 V for Military/MIL-STD-883
Symbol txxx
Description
Min.
Max.
Units
Notes
DWRH
DI hold from WB
1.5
ns
DWRS
DI setup to WB
0.5
ns
PARGEN is inactive
DWRS
DI setup to WB
2.5
ns
PARGEN is active
EWRH, FWRH,
THWRH
Old EMPTY, FULL, EQTH, & GETH valid hold
time after WB
0.5
ns
Empty/full/thresh are invalid from the end
of hold until the new access is complete
EWRA
EMPTY
↓ access from WB ↑
3.01
ns
FWRA
New FULL access from WB
3.01
ns
THWRA
EQTH or GETH access from WB
4.5
ns
WPDA
WPE access from DI
3.0
ns
WPE is invalid while PARGEN is active
WPDH
WPE hold from DI
1.0
ns
WRCYC
Cycle time
7.5
ns
WRRDS
RB
↑, clearing FULL, setup to
WB
3.02
ns
Enabling the write operation
1.0
Inhibiting the write operation
WRH
WB high phase
3.0
ns
Inactive
WRL
WB low phase
3.0
ns
Active
Notes:
1. At fast cycles, EWRA, FWRA = MAX (7.5 ns – WRL), 3.0 ns.
2. At fast cycles, WRRDS (for enabling write) = MAX (7.5 ns – RDL), 3.0 ns.
3. After FIFO reset, WRB needs an initial falling edge prior to any write actions.
WPE
WDATA
(Full inhibits write)
WB = (WRB + WBLKB)
EMPTY
EQTH, GETH
FULL
Cycle Start
RB
tWRRDS
tDWRH
tWPDH
tWPDA
tDWRS
tEWRH, tFWRH
tEWRA, tFWRA
tTHWRH
tTHWRA
tWRH
tWRL
tWRCYC
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