LFXP2-5E-5FTN256I Lattice, LFXP2-5E-5FTN256I Datasheet - Page 246

• Manufacturer Part Number: LFXP2-5E-5FTN256I
• Description: FPGA - Field Programmable Gate Array 5K LUTs 172 I/O Inst on DSP 1.2V -5 Spd
• Manufacturer: Lattice

Specifications of LFXP2-5E-5FTN256I

• Number Of Macrocells: 5000
• Number Of Programmable I/os: 172
• Data Ram Size: 169984
• Supply Voltage (max): 1.26 V
• Maximum Operating Temperature: + 100 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage (min): 1.14 V
• Package / Case: FTBGA-256
• Number Of Logic Elements/cells: *
• Number Of Labs/clbs: *
• Total Ram Bits: 169984
• Number Of I /o: 172
• Number Of Gates: -
• Voltage - Supply: 1.14 V ~ 1.26 V
• Mounting Type: *
• Operating Temperature: -40°C ~ 100°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Lattice Semiconductor
Total DC Power (Resource)
Where:
N
N
The total DC power consumption for all the resources as per the design data is the Quiescent Power in the Power
Calculator.
The AC Power is governed by the following equation:
Total AC Power (Resource)
Where:
N
N
K
f
AF
For example, the power consumption of the Slice portion is calculated in the following equation,
Total DC Power (Slice)
Total AC Power (Slice)
Power Calculations
The Power Calculator allows users to estimate power consumption at three different levels:
For the first level of estimation, the user provides estimates of device usage in the Power Calculator Wizard and the
tool provides a rough estimate of the power consumption.
The second level is a more accurate approach. The user imports the actual device utilization by importing the post
Place and Route netlist (NCD) file.
The third level brings even more accuracy to the calculation by importing the Trace (TWR) file to populate the max-
imum frequencies (f
tion (VCD) file and calculating the Activity Factor and Toggle Rates of various components.
These three stages of power calculation are discussed in detail in the following sections of this document.
MAX
TOTAL RESOURCE
RESOURCE
TOTALRESOURCE
RESOURCE
RESOURCE
RESOURCE
= Total DC Power of Used Portion + Total DC Power of Unused Portion
= [DC Leakage per Resource when Used * N
= K
= Total DC Power of Used Portion + Total DC Power of Unused Portion
= [DC Leakage per Slice when Used * N
= K
1. Estimate of the utilized resources before completing place and route
2. Post place and route design
3. Post place and route, post trace, and post simulation
RESOURCE
SLICE
+ [DC Leakage per Resource when Unused * (N
= +[DC Leakage per Slice when Unused * (N
* f
MAX
* f
MAX
* AF
is the total number of resources in a device
is the number of resources used in the design
is the number of resources in a device
is the number of resources used in the design
is the power constant for the resource in mW/MHz
is the max frequency at which the resource is running. Frequency is measured in MHz.
is the activity factor for the resource group.The Activity Factor is a percentage of the switching
frequency.
MAX
) into the tool. Users also have the option of importing the information from the post simula-
SLICE
* AF
RESOURCE
* N
SLICE
* N
RESOURCE
SLICE
RESOURCE
]
TOTALSLICE
12-2
TOTAL RESOURCE
]
- N
SLICE
Power Estimation and Management
)]
- N
RESOURCE
for LatticeXP2 Devices
)]