2-4 Revision 13 PLL Behavior at Brownout Condition Microsemi recommends using monotonic power su" />
參數(shù)資料
型號(hào): M1A3PE3000-1PQ208
廠商: Microsemi SoC
文件頁(yè)數(shù): 73/162頁(yè)
文件大?。?/td> 0K
描述: IC FPGA 1KB FLASH 3M 208-PQFP
標(biāo)準(zhǔn)包裝: 24
系列: ProASIC3E
RAM 位總計(jì): 516096
輸入/輸出數(shù): 147
門數(shù): 3000000
電源電壓: 1.425 V ~ 1.575 V
安裝類型: 表面貼裝
工作溫度: 0°C ~ 70°C
封裝/外殼: 208-BFQFP
供應(yīng)商設(shè)備封裝: 208-PQFP(28x28)
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ProASIC3E DC and Switching Characteristics
2-4
Revision 13
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 VCCPLXL 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 ProASIC3E FPGA Fabric User’s Guide for
information on clock and lock recovery.
Internal Power-Up Activation Sequence
1. Core
2. Input buffers
3. Output buffers, after 200 ns delay from input buffer activation
Figure 2-1 I/O State as a Function of VCCI and VCC Voltage Levels
Region 1: I/O buffers are OFF
Region 2: I/O buffers are ON.
I/Os are functional (except differential inputs)
but slower because VCCI / VCC are below
specification. For the same reason, input
buffers do not meet VIH / VIL levels, and
output buffers do not meet VOH / VOL levels.
Min VCCI datasheet specification
voltage at a selected I/O
standard; i.e., 1.425 V or 1.7 V
or 2.3 V or 3.0 V
VCC
VCC = 1.425 V
Region 1: I/O Buffers are OFF
Activation trip point:
Va = 0.85 V ± 0.25 V
Deactivation trip point:
Vd = 0.75 V ± 0.25 V
Activation trip point:
Va = 0.9 V ± 0.3 V
Deactivation trip point:
Vd = 0.8 V ± 0.3 V
VCC = 1.575 V
Region 5: I/O buffers are ON
and power supplies are within
specification.
I/Os meet the entire datasheet
and timer specifications for
speed, VIH / VIL, VOH / VOL,
etc.
Region 4: I/O
buffers are ON.
I/Os are functional
(except differential
but slower because VCCI
is below specification. For the
same reason, input buffers do not
meet VIH / VIL levels, and output
buffers do not meet VOH / VOL levels.
where VT can be from 0.58 V to 0.9 V (typically 0.75 V)
VCCI
Region 3: I/O buffers are ON.
I/Os are functional; I/O DC
specifications are met,
but I/Os are slower because
the VCC is below specification.
VCC = VCCI + VT
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M1A3PE3000-1PQ208I 功能描述:IC FPGA 1KB FLASH 3M 208-PQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - FPGA(現(xiàn)場(chǎng)可編程門陣列) 系列:ProASIC3E 標(biāo)準(zhǔn)包裝:1 系列:ProASICPLUS LAB/CLB數(shù):- 邏輯元件/單元數(shù):- RAM 位總計(jì):129024 輸入/輸出數(shù):248 門數(shù):600000 電源電壓:2.3 V ~ 2.7 V 安裝類型:表面貼裝 工作溫度:- 封裝/外殼:352-BFCQFP,帶拉桿 供應(yīng)商設(shè)備封裝:352-CQFP(75x75)
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