Table 2-25 A54SX16A Timing Characteristics (Worst-Case Commercial Conditions V
參數資料
型號: A54SX32A-1CQ208
廠商: Microsemi SoC
文件頁數: 56/108頁
文件大?。?/td> 0K
描述: IC FPGA SX 48K GATES 208-CQFP
標準包裝: 1
系列: SX-A
LAB/CLB數: 2880
輸入/輸出數: 174
門數: 48000
電源電壓: 2.25 V ~ 5.25 V
安裝類型: 表面貼裝
工作溫度: 0°C ~ 70°C
封裝/外殼: 208-BFCQFP,帶拉桿
供應商設備封裝: 208-CQFP(75x75)
SX-A Family FPGAs
v5.3
2-31
Table 2-25 A54SX16A Timing Characteristics
(Worst-Case Commercial Conditions VCCA = 2.25 V, VCCI = 2.25 V, TJ = 70°C)
Parameter
Description
–3 Speed1
–2 Speed
–1 Speed
Std. Speed
–F Speed
Units
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
2.5 V LVCMOS Output Module Timing 2, 3
tDLH
Data-to-Pad Low to High
3.4
3.9
4.5
5.2
7.3
ns
tDHL
Data-to-Pad High to Low
2.6
3.0
3.3
3.9
5.5
ns
tDHLS
Data-to-Pad High to Low—low slew
11.6
13.4
15.2
17.9
25.0
ns
tENZL
Enable-to-Pad, Z to L
2.4
2.8
3.2
3.7
5.2
ns
tENZLS
Data-to-Pad, Z to L—low slew
11.8
13.7
15.5
18.2
25.5
ns
tENZH
Enable-to-Pad, Z to H
3.4
3.9
4.5
5.2
7.3
ns
tENLZ
Enable-to-Pad, L to Z
2.1
2.5
2.8
3.3
4.7
ns
tENHZ
Enable-to-Pad, H to Z
2.6
3.0
3.3
3.9
5.5
ns
dTLH
4
Delta Low to High
0.031
0.037
0.043
0.051
0.071
ns/pF
dTHL
4
Delta High to Low
0.017
0.023
0.037
ns/pF
dTHLS
4
Delta High to Low—low slew
0.057
0.06
0.071
0.086
0.117
ns/pF
Note:
1. All –3 speed grades have been discontinued.
2. Delays based on 35 pF loading.
3. The equivalent IO Attribute settings for 2.5 V LVCMOS is 2.5 V LVTTL in the software.
4. To obtain the slew rate, substitute the appropriate Delta value, load capacitance, and the VCCI value into the following equation:
Slew Rate [V/ns] = (0.1*VCCI – 0.9*VCCI)/ (Cload * dT[LH|HL|HLS])
where Cload is the load capacitance driven by the I/O in pF
dT[LH|HL|HLS] is the worst case delta value from the datasheet in ns/pF.
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