Revision 13 2-13 RAM Contribution鈥擯MEMORY P
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� A3P125-2TQG144I
寤犲晢锛� Microsemi SoC
鏂囦欢闋�(y猫)鏁�(sh霉)锛� 141/220闋�(y猫)
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� IC FPGA 1KB FLASH 125K 144-TQFP
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 60
绯诲垪锛� ProASIC3
RAM 浣嶇附瑷�(j矛)锛� 36864
杓稿叆/杓稿嚭鏁�(sh霉)锛� 100
闁€鏁�(sh霉)锛� 125000
闆绘簮闆诲锛� 1.425 V ~ 1.575 V
瀹夎椤炲瀷锛� 琛ㄩ潰璨艰
宸ヤ綔婧害锛� -40°C ~ 85°C
灏佽/澶栨锛� 144-LQFP
渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁濓細 144-TQFP锛�20x20锛�
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ProASIC3 Flash Family FPGAs
Revision 13
2-13
RAM Contribution鈥擯MEMORY
PMEMORY = PAC11 * NBLOCKS * FREAD-CLOCK * 2 + PAC12 * NBLOCK * FWRITE-CLOCK * 3
NBLOCKS is the number of RAM blocks used in the design.
FREAD-CLOCK is the memory read clock frequency.
2 is the RAM enable rate for read operations.
FWRITE-CLOCK is the memory write clock frequency.
3 is the RAM enable rate for write operations鈥攇uidelines are provided in Table 2-17 on page 2-13.
PLL Contribution鈥擯PLL
PPLL = PDC4 + PAC13 *FCLKOUT
FCLKOUT is the output clock frequency.1
Guidelines
Toggle Rate Definition
A toggle rate defines the frequency of a net or logic element relative to a clock. It is a percentage. If the
toggle rate of a net is 100%, this means that this net switches at half the clock frequency. Below are
some examples:
The average toggle rate of a shift register is 100% because all flip-flop outputs toggle at half of the
clock frequency.
The average toggle rate of an 8-bit counter is 25%:
鈥� Bit 0 (LSB) = 100%
鈥� Bit 1
= 50%
鈥� Bit 2
= 25%
鈥撯€�
鈥� Bit 7 (MSB) = 0.78125%
鈥� Average toggle rate = (100% + 50% + 25% + 12.5% + . . . + 0.78125%) / 8
Enable Rate Definition
Output enable rate is the average percentage of time during which tristate outputs are enabled. When
nontristate output buffers are used, the enable rate should be 100%.
1.
The PLL dynamic contribution depends on the input clock frequency, the number of output clock signals generated by the
PLL, and the frequency of each output clock. If a PLL is used to generate more than one output clock, include each output
clock in the formula by adding its corresponding contribution (PAC14 * FCLKOUT product) to the total PLL contribution.
Table 2-16 Toggle Rate Guidelines Recommended for Power Calculation
Component
Definition
Guideline
1
Toggle rate of VersaTile outputs
10%
2
I/O buffer toggle rate
10%
Table 2-17 Enable Rate Guidelines Recommended for Power Calculation
Component
Definition
Guideline
1
I/O output buffer enable rate
100%
2
RAM enable rate for read operations
12.5%
3
RAM enable rate for write operations
12.5%
鐩搁棞(gu膩n)PDF璩囨枡
PDF鎻忚堪
M1A3P250-1FGG144I IC FPGA 1KB FLASH 250K 144-FBGA
M1A3P250-1FG144I IC FPGA 1KB FLASH 250K 144-FBGA
AMC31DREN-S13 CONN EDGECARD 62POS .100 EXTEND
ASC44DREI-S13 CONN EDGECARD 88POS .100 EXTEND
BR24L64F-WE2 IC EEPROM 64KBIT 400KHZ 8SOP
鐩搁棞(gu膩n)浠g悊鍟�/鎶€琛�(sh霉)鍙冩暩(sh霉)
鍙冩暩(sh霉)鎻忚堪
A3P125-2VQ100 鍔熻兘鎻忚堪:IC FPGA 1KB FLASH 125K 100-VQFP RoHS:鍚� 椤炲垾:闆嗘垚闆昏矾 (IC) >> 宓屽叆寮� - FPGA锛堢従(xi脿n)鍫�(ch菐ng)鍙法绋嬮杸闄e垪锛� 绯诲垪:ProASIC3 妯�(bi膩o)婧�(zh菙n)鍖呰:152 绯诲垪:IGLOO PLUS LAB/CLB鏁�(sh霉):- 閭忚集鍏冧欢/鍠厓鏁�(sh霉):792 RAM 浣嶇附瑷�(j矛):- 杓稿叆/杓稿嚭鏁�(sh霉):120 闁€鏁�(sh霉):30000 闆绘簮闆诲:1.14 V ~ 1.575 V 瀹夎椤炲瀷:琛ㄩ潰璨艰 宸ヤ綔婧害:-40°C ~ 85°C 灏佽/澶栨:289-TFBGA锛孋SBGA 渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁�:289-CSP锛�14x14锛�
A3P125-2VQ100I 鍔熻兘鎻忚堪:IC FPGA 1KB FLASH 125K 100-VQFP RoHS:鍚� 椤炲垾:闆嗘垚闆昏矾 (IC) >> 宓屽叆寮� - FPGA锛堢従(xi脿n)鍫�(ch菐ng)鍙法绋嬮杸闄e垪锛� 绯诲垪:ProASIC3 妯�(bi膩o)婧�(zh菙n)鍖呰:152 绯诲垪:IGLOO PLUS LAB/CLB鏁�(sh霉):- 閭忚集鍏冧欢/鍠厓鏁�(sh霉):792 RAM 浣嶇附瑷�(j矛):- 杓稿叆/杓稿嚭鏁�(sh霉):120 闁€鏁�(sh霉):30000 闆绘簮闆诲:1.14 V ~ 1.575 V 瀹夎椤炲瀷:琛ㄩ潰璨艰 宸ヤ綔婧害:-40°C ~ 85°C 灏佽/澶栨:289-TFBGA锛孋SBGA 渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁�:289-CSP锛�14x14锛�
A3P125-2VQ144 鍒堕€犲晢:ACTEL 鍒堕€犲晢鍏ㄧū:Actel Corporation 鍔熻兘鎻忚堪:ProASIC3 Flash Family FPGAs
A3P125-2VQ144ES 鍒堕€犲晢:ACTEL 鍒堕€犲晢鍏ㄧū:Actel Corporation 鍔熻兘鎻忚堪:ProASIC3 Flash Family FPGAs
A3P125-2VQ144I 鍒堕€犲晢:ACTEL 鍒堕€犲晢鍏ㄧū:Actel Corporation 鍔熻兘鎻忚堪:ProASIC3 Flash Family FPGAs