Table 2-41 A54SX72A Timing Characteristics (Worst-Case Commercial Conditions V
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� A54SX32A-PQG208I
寤�(ch菐ng)鍟嗭細 Microsemi SoC
鏂囦欢闋�(y猫)鏁�(sh霉)锛� 79/108闋�(y猫)
鏂囦欢澶у皬锛� 0K
鎻忚堪锛� IC FPGA SX 48K GATES 208-PQFP
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 24
绯诲垪锛� SX-A
LAB/CLB鏁�(sh霉)锛� 2880
杓稿叆/杓稿嚭鏁�(sh霉)锛� 174
闁€(m茅n)鏁�(sh霉)锛� 48000
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瀹夎椤�(l猫i)鍨嬶細 琛ㄩ潰璨艰
宸ヤ綔婧害锛� -40°C ~ 85°C
灏佽/澶栨锛� 208-BFQFP
渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁濓細 208-PQFP锛�28x28锛�
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SX-A Family FPGAs
2- 52
v5.3
Table 2-41 A54SX72A Timing Characteristics
(Worst-Case Commercial Conditions VCCA = 2.25 V, VCCI = 4.75 V, TJ = 70掳C)
Parameter
Description
鈥�3 Speed1
鈥�2 Speed
鈥�1 Speed
Std. Speed
鈥揊 Speed
Units
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
5 V PCI Output Module Timing2
tDLH
Data-to-Pad Low to High
2.7
3.1
3.5
4.1
5.7
ns
tDHL
Data-to-Pad High to Low
3.4
3.9
4.4
5.1
7.2
ns
tENZL
Enable-to-Pad, Z to L
1.3
1.5
1.7
2.0
2.8
ns
tENZH
Enable-to-Pad, Z to H
2.7
3.1
3.5
4.1
5.7
ns
tENLZ
Enable-to-Pad, L to Z
3.0
3.5
3.9
4.6
6.4
ns
tENHZ
Enable-to-Pad, H to Z
3.4
3.9
4.4
5.1
7.2
ns
dTLH
3
Delta Low to High
0.016
0.02
0.022
0.032
ns/pF
dTHL
3
Delta High to Low
0.026
0.03
0.032
0.04
0.052
ns/pF
5 V TTL Output Module Timing4
tDLH
Data-to-Pad Low to High
2.4
2.8
3.1
3.7
5.1
ns
tDHL
Data-to-Pad High to Low
3.1
3.5
4.0
4.7
6.6
ns
tDHLS
Data-to-Pad High to Low鈥攍ow slew
7.4
8.5
9.7
11.4
15.9
ns
tENZL
Enable-to-Pad, Z to L
2.1
2.4
2.7
3.2
4.5
ns
tENZLS
Enable-to-Pad, Z to L鈥攍ow slew
7.4
8.4
9.5
11.0
15.4
ns
tENZH
Enable-to-Pad, Z to H
2.4
2.8
3.1
3.7
5.1
ns
tENLZ
Enable-to-Pad, L to Z
3.6
4.2
4.7
5.6
7.8
ns
tENHZ
Enable-to-Pad, H to Z
3.1
3.5
4.0
4.7
6.6
ns
dTLH
3
Delta Low to High
0.014
0.017
0.023
0.031
ns/pF
dTHL
3
Delta High to Low
0.023
0.029
0.031
0.037
0.051
ns/pF
dTHLS
3
Delta High to Low鈥攍ow slew
0.043
0.046
0.057
0.066
0.089
ns/pF
Notes:
1. All 鈥�3 speed grades have been discontinued.
2. Delays based on 50 pF loading.
3. 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 鈥� 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.
4. Delays based on 35 pF loading.
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