3-2 Revision 13 VCOMPLA/B/C/D/E/F PLL Ground Ground to analog PLL power supplies. When the PLLs are not used, the p" />
參數(shù)資料
型號: M1AGLE3000V5-FG484
廠商: Microsemi SoC
文件頁數(shù): 31/166頁
文件大?。?/td> 0K
描述: IC FPGA 1KB FLASH 3M 484-FBGA
標準包裝: 60
系列: IGLOOe
邏輯元件/單元數(shù): 75264
RAM 位總計: 516096
輸入/輸出數(shù): 341
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: 484-BGA
供應商設備封裝: 484-FPBGA(23x23)
Pin Descriptions and Packaging
3-2
Revision 13
VCOMPLA/B/C/D/E/F
PLL Ground
Ground to analog PLL power supplies. When the PLLs are not used, the place-and-route tool
automatically disables the unused PLLs to lower power consumption. The user should tie unused
VCCPLx and VCOMPLx pins to ground.
There are six VCOMPL pins (PLL ground) on IGLOOe devices.
VJTAG
JTAG Supply Voltage
Low power flash devices have a separate bank for the dedicated JTAG pins. The JTAG pins can be run
at any voltage from 1.5 V to 3.3 V (nominal). Isolating the JTAG power supply in a separate I/O bank
gives greater flexibility in supply selection and simplifies power supply and PCB design. If the JTAG
interface is neither used nor planned for use, the VJTAG pin together with the TRST pin could be tied to
GND. It should be noted that VCC is required to be powered for JTAG operation; VJTAG alone is
insufficient. If a device is in a JTAG chain of interconnected boards, the board containing the device can
be powered down, provided both VJTAG and VCC to the part remain powered; otherwise, JTAG signals
will not be able to transition the device, even in bypass mode.
Microsemi recommends that VPUMP and VJTAG power supplies be kept separate with independent
filtering capacitors rather than supplying them from a common rail.
VPUMP
Programming Supply Voltage
IGLOOe devices support single-voltage ISP of the configuration flash and FlashROM. For programming,
VPUMP should be 3.3 V nominal. During normal device operation, VPUMP can be left floating or can be
tied (pulled up) to any voltage between 0 V and the VPUMP maximum. Programming power supply
voltage (VPUMP) range is listed in the datasheet.
When the VPUMP pin is tied to ground, it will shut off the charge pump circuitry, resulting in no sources of
oscillation from the charge pump circuitry.
For proper programming, 0.01 F and 0.33 F capacitors (both rated at 16 V) are to be connected in
parallel across VPUMP and GND, and positioned as close to the FPGA pins as possible.
Microsemi recommends that VPUMP and VJTAG power supplies be kept separate with independent
filtering capacitors rather than supplying them from a common rail.
User-Defined Supply Pins
VREF
I/O Voltage Reference
Reference voltage for I/O minibanks. VREF pins are configured by the user from regular I/Os, and any
I/O in a bank, except JTAG I/Os, can be designated the voltage reference I/O. Only certain I/O standards
require a voltage reference—HSTL (I) and (II), SSTL2 (I) and (II), SSTL3 (I) and (II), and GTL/GTL+. One
VREF pin can support the number of I/Os available in its minibank.
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