LCMXO2280C-5TN144C LATTICE SEMICONDUCTOR, LCMXO2280C-5TN144C Datasheet - Page 185

• Manufacturer Part Number: LCMXO2280C-5TN144C
• Description: MACHXO PLD FLASH, SCRAM 1.8V, SMD
• Manufacturer: LATTICE SEMICONDUCTOR
• Series: MachXOr

Specifications of LCMXO2280C-5TN144C

• Cpld Type: FLASH
• No. Of Macrocells: 1140
• No. Of I/o's: 113
• Propagation Delay: 3.6ns
• Global Clock Setup Time: 1.1ns
• Frequency: 600MHz
• Supply Voltage Range: 1.71V To 3.465V
• Operating: 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, on the other hand, is governed by the following equation.
Total AC Power (Resource)
Where,
N
N
K
f
AF
Based on the above equations, if we wish to calculate the power consumption of the slice portion, it will be as
shown below.
Total DC Power (Slice)
Total AC Power (Slice)
Power Calculations
The Power Calculator is a powerful tool which allows users to estimate power consumption at three different levels:
For first level estimation, the user provides estimates of device usage in the Power Calculator Wizard and the tool
provides a rough estimate of the power consumption.
In the second level, a more accurate approach, the user imports the actual device utilization by importing the post
place and route netlist (NCD) file.
The third and final stage brings even more accuracy to the calculation, by importing the Trace (TWR) file to popu-
late the maximum frequencies (f
post simulation (VCD) file and calculating the activity factor and toggle rates of various components.
These power calculations are discussed in detail in the following sections of this document.
MAX
TOTAL RESOURCE
RESOURCE
TOTAL RESOURCE
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
* AF
MAX
is the total number of resources in a device
is the number of resources used in the design
is the total number of resources in a device,
is the number of resources used in the design,
is the power constant for the resource. The units of this factor are 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. Activity factor is in terms of the percentage (%)
SLICE
* AF
of switching frequency.
RESOURCE
* N
MAX
SLICE
) into the tool. Users also have the option of importing the information from the
* N
RESOURCE
SLICE
RESOURCE
]
TOTAL SLICE
11-2
TOTAL RESOURCE
]
- N
SLICE
Power Estimation and Management
)]
- N
RESOURCE
)]
for MachXO Devices