
Rev. J
|
Page 27 of 68
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February 2014
System designers should refer to Estimating Power for the
ADSP-BF534/BF536/BF537 Blackfin Processors (EE-297), which
provides detailed information for optimizing designs for lowest
power. All topics discussed in this section are described in detail
in EE-297. 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-
current dissipation for internal circuitry (VDDINT). IDDDEEPSLEEP
specifies static power dissipation as a function of voltage
specifies the total power specification for the listed test condi-
tions, including the dynamic component as a function of voltage
The dynamic component is also subject to an Activity Scaling
Factor (ASF) which represents application code running on the
Table 15. Static Current–500 MHz, 533 MHz, and 600 MHz Speed Grade Devices (mA)1
TJ (°C)
Voltage (VDDINT)
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
–40
3.9
4.7
6.8
8.2
9.9
12.0
14.6
17.3
20.3
24.1
27.1
28.6
36.3
44.4
0
17.0
19.2
21.9
25.0
28.2
32.1
36.9
41.8
47.7
53.8
61.0
63.8
73.2
84.1
25
35.0
39.2
44.3
50.8
56.1
63.3
69.1
76.4
84.7
93.5
104.5
109.1
123.4
138.8
40
53.0
59.2
65.3
71.9
79.1
88.0
96.6
108.0
120.0
130.7
142.6
148.5
166.5
185.6
55
76.7
84.6
93.6
103.1
113.7
123.9
136.3
148.3
162.8
178.4
194.4
201.4
223.7
247.5
70
110.1
120.0
130.9
142.2
156.5
171.3
185.2
201.7
220.6
239.7
259.8
268.8
295.9
325.2
85
150.1
164.5
178.7
193.2
210.4
228.9
247.7
268.8
291.4
314.1
341.1
351.2
384.6
420.3
100
202.3
219.2
236.5
255.8
277.8
299.8
323.8
351.2
378.8
407.5
440.4
453.4
494.3
538.2
105
223.8
241.4
260.4
282.0
303.4
328.7
354.5
381.7
410.8
443.6
477.8
492.2
535.1
581.5
1 Values are guaranteed maximum IDDDEEPSLEEP specifications.
Table 16. Static Current–300 MHz and 400 MHz Speed Grade Devices (mA)1
TJ (°C)
Voltage (VDDINT)
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
–40
2.6
3.2
3.7
4.5
5.5
6.6
7.9
9.3
10.5
12.5
13.9
14.8
0
6.6
7.8
8.4
9.9
10.912.3
13.815.517.519.621.723.1
25
12.2
13.5
14.8
16.4
18.2
19.9
22.7
25.6
28.4
31.8
35.7
37.2
40
17.2
19.0
20.6
22.9
25.9
28.2
31.6
34.9
38.9
42.9
47.6
49.5
55
25.7
27.8
30.9
33.7
37.3
41.4
44.8
50.0
54.8
59.4
66.1
68.4
70
37.6
41.3
44.8
48.9
53.9
58.6
63.9
69.7
76.9
84.0
92.2
94.9
85
53.7
58.3
63.7
69.0
75.9
82.9
90.5
98.4
106.4
115.3
124.6
128.1
100
75.1
82.3
88.5
95.8
104.0
112.5
121.8
130.6
141.3
153.2
164.8
169.7
105
84.5
91.2
98.2
106.0
114.2
123.0
132.4
143.3
155.0
167.4
179.8
185.4
115
2
103.8
111.8
120.3
127.6
138.0
148.5
159.6
171.4
184.6
198.8
213.4
219.6
1202
115.5
123.6
132.2
141.9
152.3
163.7
175.6
189.3
202.8
217.7
232.3
238.6
1 Values are guaranteed maximum IDDDEEPSLEEP specifications.
2 Applies to automotive grade models only.