2128VL datasheet(8/17 Pages) LATTICE

8 / 17 page

Specifications ispLSI 2128VL

Power Consumption

Power consumption in the ispLSI 2128VL device de-

pends on two primary factors: the speed at which the

device is operating and the number of Product Terms

used. Figure 3 shows the relationship between power

and operating speed.

Figure 3. Typical Device Power Consumption vs fmax

0127/2128VL

ICC can be estimated for the ispLSI 2128VL using the following equation:

ICC = 12 + (# of PTs * 0.46) + (# of nets * max freq * 0.0029)

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 (in MHz)

The ICC estimate is based on typical conditions (VCC = 2.5V, room temperature) and an assumption

of two GLB loads on average exists. These values are for estimates only. Since the value of ICC is

sensitive to operating conditions and the program in the device, the actual ICC should be verified.

Notes: Configuration of eight 16-bit counters

Typical current at 2.5V, 25

° C

160

025

100

125

150

fmax (MHz)

180

200

120

100

140

ispLSI 2128VL

2128VL Datasheet(PDF) 8 Page - Lattice Semiconductor