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DS0147 데이터시트(PDF) 44 Page - Microchip Technology

부품명 DS0147
상세설명  PolarFire SoC Advanced Datasheet
PDF  128 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

DS0147 데이터시트(HTML) 44 Page - Microchip Technology

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Table 55 • Timers
Units
Max
Min
Symbol
Parameters
MHz
250
FTIMERCLK
Timer input clock fre-
quency
6.1.15
Fabric Interface
The following tables describe the fabric interface.
Table 56 • Maximum Clock Frequency
Units
Max
Min
Symbol
Parameter
MHz
250
FFABRICAXICLK
AXI
MHz
250
FFABRICAHBCLK
APB
6.2
I/O Standards Specifications
This section describes I/O delay measurement methodology, buffer speed, switching characteristics, digital
latency, gearing training calibration, and maximum physical interface (PHY) rate for memory interface IP.
6.2.1
Input Delay Measurement Methodology Maximum PHY Rate for Memory Interface IP
The following table provides information about the methodology for input delay measurement.
Table 57 • Input Delay Measurement Methodology
Unit
VREF
1, 5
VMEAS
3, 4
VICM
2
VID
2
VH
1
VL
1
Description
Standard
V
VDDI/2
VDDI
0
PCIE 3.3 V
PCI
V
VDDI/2
VDDI
0
LVTTL 3.3 V
LVTTL
V
VDDI/2
VDDI
0
LVCMOS 3.3
V
LVCMOS33
V
VDDI/2
VDDI
0
LVCMOS 2.5
V
LVCMOS25
V
VDDI/2
VDDI
0
LVCMOS 1.8
V
LVCMOS18
V
VDDI/2
VDDI
0
LVCMOS 1.5
V
LVCMOS15
V
VDDI/2
VDDI
0
LVCMOS 1.2
V
LVCMOS12
V
1.25
VREF
VREF + 0.5
VREF – 0.5
SSTL 2.5 V
Class I
SSTL25I
V
1.25
VREF
VREF + 0.5
VREF – 0.5
SSTL 2.5 V
Class II
SSTL25II
40
Microsemi Proprietary and Confidential. DS0147 Revision 1.0
AC Switching Characteristics



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