ISPLSI3256A-50LM LATTICE [Lattice Semiconductor], ISPLSI3256A-50LM Datasheet - Page 10

• Manufacturer Part Number: ISPLSI3256A-50LM
• Description: In-System Programmable High Density PLD
• Manufacturer: LATTICE [Lattice Semiconductor]

Power consumption in the ispLSI 3256A device depends
on two primary factors: the speed at which the device is
operating and the number of product terms used.
Figure 3. Typical Device Power Consumption vs fmax
I CC can be estimated for the ispLSI 3256A using the following equation:
I CC = 40 + (# of PTs * 0.31) + (# of nets * Max. freq * 0.0094) where:
# of PTs = Number of Product Terms used in design
# of nets = Number of Signals used in device
Max. freq = Highest Clock Frequency to the device
The I CC estimate is based on typical conditions (V CC = 5.0V, room temperature) and an assumption of two
GLB loads on average exists. These values are for estimates only. Since the value of I CC is sensitive to
operating conditions and the program in the device, the actual I CC should be verified.
Power Consumption
400
300
200
0
10
Notes: Configuration of 16 16-bit Counters
20
Typical Current at 5V, 25 C
30
f
max (MHz)
40
10
50
Figure 3 shows the relationship between power and
operating speed.
Specifications ispLSI 3256A
60
ispLSI 3256A
70
80
90
100
0127A-16-80-isp/3256A