Lattice Semiconductor Corporation

(1.31, 30-MAR-2012)

www.latticesemi.com/

11

Power Consumption Characteristics

Core Power

Table 16 shows the power consumed on the internal VCC supply rail when the device is filled with 16-bit binary

counters, measured with a 32.768 kHz and at 32.0 MHz

Table 16: VCC Power Consumption for Device Filled with 16-Bit Binary Counters

Symbol

Description

VCC

iCE40HX640 iCE40HX1K

iCE40HX4K

iCE40HX8K

Units

Typical

Typical

Typical

Typical

f =0

1.2V

200

267

667

1100

µA

f ≤

.768 kHz

1.2V

222

297

741

1222

µA

f = 32.0 MHz

1.2V

4

4

12

13

mA

I/O Power

Table 17 provides the static current by I/O bank. The typical current for I/O Banks 0, 1, 2 and the SPI bank is not

measurable within the accuracy of the test environment. The PIOs in I/O Bank 3 use different circuitry and dissipate

a small amount of static current.

Table 17: I/O Bank Static Current (f = 0 MHz)

Symbol

Description

Typical

Maximum Units

I/O Bank 0

Static current consumption per I/O bank.

f = 0 MHz. No PIO pull-up resistors

enabled. All inputs grounded. All

outputs driving Low.

« 1

uA

I/O Bank 1

« 1

uA

I/O Bank 2

« 1

uA

I/O Bank 3

« 1

uA

SPI Bank

« 1

uA

NOTE: The typical static current for I/O Banks 0, 1, 2, and the SPI bank is less than the accuracy of the device tester.

Power Estimator

To estimate the power consumption for a specific application, please download and use the iCE40HX Power Estimator

Spreadsheet our use the power estimator built into the iCEcube2 software.