Revision 13 2-3 I/O Power-Up and Supply Voltage Thresholds for Power-On Reset (Commercial and Industrial)
參數(shù)資料
型號(hào): A3P1000-2FGG144
廠商: Microsemi SoC
文件頁(yè)數(shù): 79/220頁(yè)
文件大?。?/td> 0K
描述: IC FPGA 1KB FLASH 1M 144-FBGA
標(biāo)準(zhǔn)包裝: 160
系列: ProASIC3
RAM 位總計(jì): 147456
輸入/輸出數(shù): 97
門(mén)數(shù): 1000000
電源電壓: 1.425 V ~ 1.575 V
安裝類(lèi)型: 表面貼裝
工作溫度: 0°C ~ 70°C
封裝/外殼: 144-LBGA
供應(yīng)商設(shè)備封裝: 144-FPBGA(13x13)
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ProASIC3 Flash Family FPGAs
Revision 13
2-3
I/O Power-Up and Supply Voltage Thresholds for Power-On Reset
(Commercial and Industrial)
Sophisticated power-up management circuitry is designed into every ProASIC3 device. These circuits
ensure easy transition from the powered-off state to the powered-up state of the device. The many
different supplies can power up in any sequence with minimized current spikes or surges. In addition, the
I/O will be in a known state through the power-up sequence. The basic principle is shown in Figure 2-1
There are five regions to consider during power-up.
ProASIC3 I/Os are activated only if ALL of the following three conditions are met:
1. VCC and VCCI are above the minimum specified trip points (Figure 2-1 on page 2-4).
2. VCCI > VCC – 0.75 V (typical)
3. Chip is in the operating mode.
VCCI Trip Point:
Ramping up: 0.6 V < trip_point_up < 1.2 V
Ramping down: 0.5 V < trip_point_down < 1.1 V
VCC Trip Point:
Ramping up: 0.6 V < trip_point_up < 1.1 V
Ramping down: 0.5 V < trip_point_down < 1 V
VCC and VCCI ramp-up trip points are about 100 mV higher than ramp-down trip points. This specifically
built-in hysteresis prevents undesirable power-up oscillations and current surges. Note the following:
During programming, I/Os become tristated and weakly pulled up to VCCI.
JTAG supply, PLL power supplies, and charge pump VPUMP supply have no influence on I/O
behavior.
PLL Behavior at Brownout Condition
Microsemi recommends using monotonic power supplies or voltage regulators to ensure proper power-
up behavior. Power ramp-up should be monotonic at least until VCC and VCCPLLX exceed brownout
activation levels. The VCC activation level is specified as 1.1 V worst-case (see Figure 2-1 on page 2-4
for more details).
When PLL power supply voltage and/or VCC levels drop below the VCC brownout levels (0.75 V ± 0.25
V), the PLL output lock signal goes low and/or the output clock is lost. Refer to the "Power-Up/-Down
Behavior of Low Power Flash Devices" chapter of the ProASIC3 FPGA Fabric User’s Guide for
information on clock and lock recovery.
Table 2-4 Overshoot and Undershoot Limits 1
VCCI and VMV
Average VCCI–GND Overshoot or Undershoot
Duration as a Percentage of Clock Cycle2
Maximum Overshoot/
Undershoot2
2.7 V or less
10%
1.4 V
5%
1.49 V
3 V
10%
1.1 V
5%
1.19 V
3.3 V
10%
0.79 V
5%
0.88 V
3.6 V
10%
0.45 V
5%
0.54 V
Notes:
1. Based on reliability requirements at 85°C.
2. The duration is allowed at one out of six clock cycles. If the overshoot/undershoot occurs at one out of two cycles, the
maximum overshoot/undershoot has to be reduced by 0.15 V.
3. This table does not provide PCI overshoot/undershoot limits.
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A3P1000-2FGG144ES 制造商:ACTEL 制造商全稱(chēng):Actel Corporation 功能描述:ProASIC3 Flash Family FPGAs
A3P1000-2FGG144I 功能描述:IC FPGA 1KB FLASH 1M 144-FBGA RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - FPGA(現(xiàn)場(chǎng)可編程門(mén)陣列) 系列:ProASIC3 標(biāo)準(zhǔn)包裝:40 系列:SX-A LAB/CLB數(shù):6036 邏輯元件/單元數(shù):- RAM 位總計(jì):- 輸入/輸出數(shù):360 門(mén)數(shù):108000 電源電壓:2.25 V ~ 5.25 V 安裝類(lèi)型:表面貼裝 工作溫度:0°C ~ 70°C 封裝/外殼:484-BGA 供應(yīng)商設(shè)備封裝:484-FPBGA(27X27)
A3P1000-2FGG144PP 制造商:ACTEL 制造商全稱(chēng):Actel Corporation 功能描述:ProASIC3 Flash Family FPGAs
A3P1000-2FGG256 功能描述:IC FPGA 1KB FLASH 1M 256-FBGA RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - FPGA(現(xiàn)場(chǎng)可編程門(mén)陣列) 系列:ProASIC3 標(biāo)準(zhǔn)包裝:90 系列:ProASIC3 LAB/CLB數(shù):- 邏輯元件/單元數(shù):- RAM 位總計(jì):36864 輸入/輸出數(shù):157 門(mén)數(shù):250000 電源電壓:1.425 V ~ 1.575 V 安裝類(lèi)型:表面貼裝 工作溫度:-40°C ~ 125°C 封裝/外殼:256-LBGA 供應(yīng)商設(shè)備封裝:256-FPBGA(17x17)
A3P1000-2FGG256I 功能描述:IC FPGA 1KB FLASH 1M 256-FBGA RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - FPGA(現(xiàn)場(chǎng)可編程門(mén)陣列) 系列:ProASIC3 標(biāo)準(zhǔn)包裝:40 系列:SX-A LAB/CLB數(shù):6036 邏輯元件/單元數(shù):- RAM 位總計(jì):- 輸入/輸出數(shù):360 門(mén)數(shù):108000 電源電壓:2.25 V ~ 5.25 V 安裝類(lèi)型:表面貼裝 工作溫度:0°C ~ 70°C 封裝/外殼:484-BGA 供應(yīng)商設(shè)備封裝:484-FPBGA(27X27)