Datasheet
ADSP-BF531/ADSP-BF532/ADSP-BF533
Rev. I | Page 23 of 64 | August 2013
System designers should refer to Estimating Power for the
ADSP-BF531/BF532/BF533 Blackfin Processors (EE-229), which
provides detailed information for optimizing designs for lowest
power. All topics discussed in this section are described in detail
in EE-229. Total power dissipation has two components:
1. Static, including leakage current
2. Dynamic, due to transistor switching characteristics
Many operating conditions can also affect power dissipation,
including temperature, voltage, operating frequency, and pro-
cessor activity. Electrical Characteristics on Page 22 shows the
current dissipation for internal circuitry (V
DDINT
). I
DDDEEPSLEEP
specifies static power dissipation as a function of voltage
(V
DDINT
) and temperature (see Table 14 or Table 15), and I
DDINT
specifies the total power specification for the listed test condi-
tions, including the dynamic component as a function of voltage
(V
DDINT
) and frequency (Table 17).
The dynamic component is also subject to an Activity Scaling
Factor (ASF) which represents application code running on the
processor (Table 16).
5
Applies to JTAG input pins (TCK, TDI, TMS, TRST).
6
Absolute value.
7
Applies to three-statable pins.
8
Applies to all signal pins.
9
Guaranteed, but not tested.
10
See the ADSP-BF533 Blackfin Processor Hardware Reference Manual for definitions of sleep, deep sleep, and hibernate operating modes.
11
See Table 16 for the list of I
DDINT
power vectors covered by various Activity Scaling Factors (ASF).
Table 14. Static Current–500 MHz, 533 MHz, and 600 MHz Speed Grade Devices (mA)
1
Voltage (V
DDINT
)
2
T
J
(°C)
2
0.80 V 0.85 V 0.90 V 0.95 V 1.00 V 1.05 V 1.10 V 1.15 V 1.20 V 1.25 V 1.30 V 1.32 V 1.375 V 1.43 V 1.45 V
–45 4.3 5.3 5.9 7.0 8.2 9.8 11.2 13.0 15.2 17.7 20.2 21.6 25.5 30.1 32.0
0 18.821.324.127.831.635.640.145.351.458.165.068.578.489.894.3
25 35.3 39.9 45.0 50.9 57.3 64.4 72.9 80.9 90.3 101.4 112.1 118.0 133.7 151.6 158.7
40 52.3 58.5 65.1 73.3 81.3 90.9 101.2 112.5 125.5 138.7 154.4 160.6 180.6 203.1 212.0
55 73.6 82.5 92.0 102.7 114.4 126.3 141.2 155.7 172.7 191.1 212.1 220.8 247.6 277.7 289.5
70 100.8 112.5 124.5 137.4 152.6 168.4 186.5 205.4 227.0 250.3 276.2 287.1 320.4 357.4 371.9
85 133.3 148.5 164.2 180.5 198.8 219.0 241.0 264.5 290.6 319.7 350.2 364.6 404.9 449.7 467.2
100 178.3 196.3 216.0 237.6 259.9 284.6 311.9 342.0 373.1 408.0 446.1 462.6 511.1 564.7 585.6
115 223.3 245.9 270.2 295.7 323.5 353.3 386.1 421.1 460.1 500.9 545.0 566.5 624.3 688.1 712.8
125 278.5 305.8 334.1 364.3 397.4 432.4 470.6 509.3 553.4 600.6 652.1 676.5 742.1 814.1 841.9
1
Values are guaranteed maximum I
DDDEEPSLEEP
specifications.
2
Valid temperature and voltage ranges are model-specific. See Operating Conditions on Page 20.
Table 15. Static Current–400 MHz Speed Grade Devices (mA)
1
Voltage (V
DDINT
)
2
T
J
(°C)
2
0.80 V 0.85 V 0.90 V 0.95 V 1.00 V 1.05 V 1.10 V 1.15 V 1.20 V 1.25 V 1.30 V 1.32 V
–45 0.9 1.1 1.3 1.5 1.8 2.2 2.6 3.1 3.8 4.4 5.0 5.4
0 3.3 3.7 4.2 4.8 5.5 6.3 7.2 8.1 8.9 10.1 11.2 11.9
25 7.5 8.4 9.4 10.0 11.2 12.6 14.1 15.5 17.2 19.0 21.2 21.9
40 12.0 13.1 14.3 15.9 17.4 19.4 21.5 23.5 25.8 28.1 30.8 32.0
55 18.3 20.0 21.9 23.6 26.0 28.2 30.8 33.7 36.8 39.8 43.4 45.0
70 27.7 30.3 32.6 35.3 38.2 41.7 45.2 49.0 52.8 57.6 62.4 64.2
85 38.2 41.7 44.9 48.6 52.7 57.3 61.7 66.7 72.0 77.5 83.9 86.5
100 54.1 58.1 63.2 67.8 73.2 78.8 84.9 91.5 98.4 106.0 113.8 117.2
115 73.9 80.0 86.3 91.9 99.1 106.6 114.1 122.4 131.1 140.9 151.1 155.5
125 98.7 106.3 113.8 122.1 130.8 140.2 149.7 160.4 171.9 183.8 197.0 202.4
1
Values are guaranteed maximum I
DDDEEPSLEEP
specifications.
2
Valid temperature and voltage ranges are model-specific. See Operating Conditions on Page 20.